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Surfaces and Interfaces

Self-ordered surface wrinkling patternsInterfaces and surfaces are where the action happens. Catalysis, molecular recognition, charge transfer, polymerization and many other critical processes take place at the boundary between one medium and another. With the need to integrate new materials into devices, and applications ranging from catalysis to sensors, medicine to self-cleaning surfaces, and displays to lasers, fundamental and applied studies of surface and interface processes and optimization are of critical importance in developing new technology to meet today's challenges. The selection of recent research articles presented below illustrates the vast potential of this field.

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Recent Articles

Effects of the Formulations of Silicon-Based Composite Anodes on their Mechanical, Storage, and Electrochemical Properties

Effects of the Formulations of Silicon‐Based Composite Anodes on their Mechanical, Storage, and Electrochemical Properties

In a bind: The modification of silicon surfaces for use in anodes through the covalent attachment of binder molecules has multiple effects, such as improved adhesion strength to the current collector, passivation, ease of electrode processability, enhanced nanoparticle packing density, improved resistance to stress during volume changes, and reduced parasitic material in the electrode formulation.

[Full Paper]
Birhanu Desalegn Assresahegn, Daniel Bélanger
ChemSusChem, September 25, 2017, https://doi.org/10.1002/cssc.201701281 Read article

Impact of Interfacial Layers in Perovskite Solar Cells

Impact of Interfacial Layers in Perovskite Solar Cells

Upping the face: Interfacial engineering in perovskite solar cells is beneficial to improving photovoltaic performance because of the effective charge collection by changing the work function and/or dipole moment and reducing trapping states and recombination by improving electronic coupling through chemical binding. Bifunctional organic materials or nonstoichiometric approaches are effective methods to passivate grain boundaries of perovskite films.

[Review]
An-Na Cho, Nam-Gyu Park
ChemSusChem, September 25, 2017, https://doi.org/10.1002/cssc.201701095 Read article

Three-Dimensional Hierarchical Architectures Derived from Surface-Mounted Metal–Organic Framework Membranes for Enhanced Electrocatalysis

Three‐Dimensional Hierarchical Architectures Derived from Surface‐Mounted Metal–Organic Framework Membranes for Enhanced Electrocatalysis

Burnt to a crisp: Surface-mounted metal–organic framework (MOF) membranes were pyrolyzed to produce electrocatalytic nanomaterials with 3D nanoarchitectures and abundant catalytic sites. Cobalt contained in the MOF thin-film has a dual function; it facilitates growth of nitrogen-doped carbon nanotubes and promotes oxygen reduction, hydrogen evolution, and oxygen evolution reactions.

[Communication]
Gan Jia, Wen Zhang, Guozheng Fan, Zhaosheng Li, Degang Fu, Weichang Hao, Chunwei Yuan, Zhigang Zou
Angew. Chem. Int. Ed., September 25, 2017, https://doi.org/10.1002/anie.201708385 Read article

The Role of the Electrode Surface in Na–Air Batteries: Insights in Electrochemical Product Formation and Chemical Growth of NaO2

The Role of the Electrode Surface in Na–Air Batteries: Insights in Electrochemical Product Formation and Chemical Growth of NaO2

In NaO2 batteries, the chemical crystallization (growth) of NaO2 is highly sensitive to the surface energy and O2/O2 affinity of the electrode. On gold, strong interaction with O2 leads to formation of small NaO2 flakes, while on carbon (low surface energy) large NaO2 cubes are found. This has significant impact on the cell performance.

[Full Paper]
Lukas Lutz, Daniel Alves Dalla Corte, Yuhui Chen, Dmitry Batuk, Lee R. Johnson, Artem Abakumov, Luis Yate, Eneko Azaceta, Peter G. Bruce, Jean-Marie Tarascon, Alexis Grimaud
Adv. Energy Mater., September 25, 2017, https://doi.org/10.1002/aenm.201701581 Read article

Localized Surface Plasmon Induced Position-Sensitive Photodetection in Silicon-Nanowire-Modified Ag/Si

Localized Surface Plasmon Induced Position‐Sensitive Photodetection in Silicon‐Nanowire‐Modified Ag/Si

Sensitivity is one of the main technical specifications of position-sensitive detectors. However, weak light absorption and low photoelectric conversion are two limitations to obtain prominent sensitivity. Based on localized surface plasmon, a large enhanced lateral photovoltaic effect is detected in a silicon nanowire-modified metal–semiconductor structure. Thus, a high position-dependent sensitivity is achieved in millimeter range.

[Full Paper]
Chunlian Mei, Shuai Liu, Xu Huang, Zhikai Gan, Peiqi Zhou, Hui Wang
Small, September 22, 2017, https://doi.org/10.1002/smll.201701726 Read article

Peristome-Mimetic Curved Surface for Spontaneous and Directional Separation of Micro Water-in-Oil Drop

Peristome‐Mimetic Curved Surface for Spontaneous and Directional Separation of Micro Water‐in‐Oil Drop

Keep 'em separated: A curved surface resembling the peristome, that is, the fringe of small projections around the opening of a capsule of a tropical pitcher plant is prepared. It enables the spontaneous separation of water and oil from micro-scale water-in-oil drops without energy input. The separation occurs within milliseconds and the separated liquids are spontaneously and uni-directionally transported in different directions.

[Communication]
Chuxin Li, Lei Wu, Cunlong Yu, Zhichao Dong, Lei Jiang
Angew. Chem. Int. Ed., September 22, 2017, https://doi.org/10.1002/anie.201706665 Read article

Tailoring the Membrane-Electrode Interface in PEM Fuel Cells: A Review and Perspective on Novel Engineering Approaches

Tailoring the Membrane‐Electrode Interface in PEM Fuel Cells: A Review and Perspective on Novel Engineering Approaches

The interface between the polymer electrolyte membrane (PEM) and the catalyst layer (CL) has significant impact onto the performance of hydrogen fuel cells. In this article novel approaches to engineer this PEM|CL interface are summarized and discussed in the context of their impact onto the electrochemical properties of the fuel cells.

[Progress Report]
Matthias Breitwieser, Matthias Klingele, Severin Vierrath, Roland Zengerle, Simon Thiele
Adv. Energy Mater., September 22, 2017, https://doi.org/10.1002/aenm.201701257 Read article

The Role of Weak Interactions in Supramolecular Compounds: A Synthetic and Theoretical Study of Novel Elongated Cavitands

The Role of Weak Interactions in Supramolecular Compounds: A Synthetic and Theoretical Study of Novel Elongated Cavitands

Novel elongated cavitands were synthesized via copper(I)-catalyzed azide-alkyne cycloaddition under mild conditions. A detailed computational study including QTAIM and NCI analysis was carried out to determine the correct geometries and reveal the intramolecular forces between the cavitand branches.

[Full Paper]
Tímea Kégl, György Csekő, Gábor Mikle, Anikó Takátsy, László Kollár, Tamás Kégl
ChemistrySelect, September 21, 2017, https://doi.org/10.1002/slct.201701762 Read article

Bacterial Detection and Differentiation via Direct Volatile Organic Compound Sensing with Surface Enhanced Raman Spectroscopy

Bacterial Detection and Differentiation via Direct Volatile Organic Compound Sensing with Surface Enhanced Raman Spectroscopy

We report here a reconfigurable assay for the identification and monitoring of bacteria through direct detection of bacterial volatile organic compounds (VOCs) via surface enhanced Raman spectroscopy (SERS). We demonstrate differentiation between highly clinically relevant organisms: Escherichia coli, Enterobacter cloacae, and Serratia marcescens and detection of as few as 10 CFU/ml of E. coli in under 12 hrs from culture, and of 103 CFU/ml and 104 CFU/ml from whole human blood and human urine in 16 hrs.

[Communication]
Caitlin S. DeJong, David I. Wang, Aleksandr Polyakov, Anita Rogacs, Steven J. Simske, Viktor Shkolnikov
ChemistrySelect, September 21, 2017, https://doi.org/10.1002/slct.201701669 Read article

Organocatalyzed Photo-Atom Transfer Radical Polymerization of Methacrylic Acid in Continuous Flow and Surface Grafting

Organocatalyzed Photo‐Atom Transfer Radical Polymerization of Methacrylic Acid in Continuous Flow and Surface Grafting

The grafting of polymethacrylic acid brushes from planar silicon wafers is achieved using organocatalyzed atom transfer radical polymerization. The behavior of this reaction using 10-phenylphenothiazine as catalyst is revealed using continuous flow and batch reactors.

[Communication]
Gijs Ramakers, Alexander Krivcov, Vanessa Trouillet, Alexander Welle, Hildegard Möbius, Tanja Junkers
Macromol. Rapid Commun., September 21, 2017, https://doi.org/10.1002/marc.201700423 Read article

Interface-Engineered Ni(OH)2/β-like FeOOH Electrocatalysts for Highly Efficient and Stable Oxygen Evolution Reaction

Interface‐Engineered Ni(OH)2/β‐like FeOOH Electrocatalysts for Highly Efficient and Stable Oxygen Evolution Reaction

Tunneling through layers: A highly efficient and stable Ni(OH)2/β-like FeOOH electrocatalyst for the oxygen evolution reaction is obtained by facile electroactivation treatment. Studies suggest that β-like FeOOH plays a key role during the electroactivation process owing to its metastable tunnel structure, with a lower barrier for interface diffusion of Ni2+ ions between the bilayer electrocatalyst.

[Full Paper]
Kaijian Zhu, Wenjun Luo, Guoxiang Zhu, Jun Wang, Yongfa Zhu, Zhigang Zou, Wei Huang
Chem. Asian J., September 21, 2017, https://doi.org/10.1002/asia.201700964 Read article

Three-Dimensional Dirac Semimetal β-PbO2

Three‐Dimensional Dirac Semimetal β‐PbO2

The authors propose that β-PbO2 is a topological node-line semimetal (NLS) when spin–orbit coupling (SOC) is ignored. When SOC is considered, β-PbO2 turns into a Dirac semimetal. β-PbO2 has already been successfully synthesized (cf. left image). The existence of surface states (cf. right image) and Fermi arcs revealed its topological nature. The theoretical results not only advance the current knowledge of the material, but also provide a new platform for exploring topological Dirac semimetal.

[Rapid Research Letter]
Wei Wang, Linjie Deng, Na Jiao, Pan Zhou, Lizhong Sun
Phys. Status Solidi RRL, September 20, 2017, https://doi.org/10.1002/pssr.201700271 Read article

Unexpectedly High Minority-Carrier Lifetimes Exceeding 20 ms Measured on 1.4-Ω cm n-Type Silicon Wafers

Unexpectedly High Minority‐Carrier Lifetimes Exceeding 20 ms Measured on 1.4‐Ω cm n‐Type Silicon Wafers

The authors measure very high minority-carrier lifetimes exceeding 20 ms on 1.4-O cm n-type Czochralski silicon wafers passivated using plasma-assisted atomic-layer-deposited Al2O3 on both wafer surfaces. The measured maximum effective lifetimes are surprisingly high as they significantly exceed the intrinsic lifetime limit previously reported by Richter et al. as can be seen in the figure.

[Rapid Research Letter]
Boris A. Veith-Wolf, Jan Schmidt
Phys. Status Solidi RRL, September 20, 2017, https://doi.org/10.1002/pssr.201700235 Read article

Anti-Icing Performance of Superhydrophobic Texture Surfaces Depending on Reference Environments

Anti‐Icing Performance of Superhydrophobic Texture Surfaces Depending on Reference Environments

The hierarchical micro-nanostructure superhydrophobic surface is widely considered to be ideal anti-icing materials due to the double-scale effect inducing to entrap more air pockets. However, the results in application environments show an inverse situation, because many supercooled microdroplets suspending in the environment (diameter of 20-40 μm) firstly rush into the micrometer structures to result in the rapid ice accumulation.

[Full Paper]
Yizhou Shen, Guanyu Wang, Jie Tao, Chunling Zhu, Senyun Liu, Mingming Jin, Yuehan Xie, Zhong Chen
Adv. Mater. Interfaces, September 20, 2017, https://doi.org/10.1002/admi.201700836 Read article

Decreasing Defect-State Density of Al2O3/GaxIn1−xAs Device Interfaces with InOx Structures

Decreasing Defect‐State Density of Al2O3/GaxIn1−xAs Device Interfaces with InOx Structures

Novel crystalline oxide structure between GaAs(100) and atomic layer deposition grown Al2O3 is shown to result in improvement of practical IR detectors. Hard X-ray photoelectron spectroscopy analysis shows that different InOx structures can give rise to different charge carrier recombination mechanisms, but they are straightforwardly suppressed with an optimal amount of In in the interfacial layer.

[Full Paper]
Jaakko Mäkelä, Marjukka Tuominen, Johnny Dahl, Sari Granroth, Muhammad Yasir, Juha-Pekka Lehtiö, Rami-Roope Uusitalo, Mikhail Kuzmin, Marko Punkkinen, Pekka Laukkanen, Kalevi Kokko, Roberto Félix, Mika Lastusaari, Ville Polojärvi, Jari Lyytikäinen, Antti Tukiainen, Mircea Guina
Adv. Mater. Interfaces, September 19, 2017, https://doi.org/10.1002/admi.201700722 Read article

Decoration of Nanofibrous Paper Chemiresistors with Dendronized Nanoparticles toward Structurally Tunable Negative-Going Response Characteristics to Human Breathing and Sweating

Decoration of Nanofibrous Paper Chemiresistors with Dendronized Nanoparticles toward Structurally Tunable Negative‐Going Response Characteristics to Human Breathing and Sweating

A nanostructured paper chemiresistor with negative-going response dominant characteristics to human breathing and sweating is demonstrated, which involves decoration of a nanofibrous membrane paper with dendronized gold nanoparticles to enable highly tunable sensitivity in moisture-dominant sensing environment and constitutes a promising new strategy to design sensing array elements for wearable breath and sweat sensors.

[Full Paper]
Shan Yan, Xin Liu, Zakiya Skeete, Ning He, Zhi-Hui Xie, Wei Zhao, Jack P. Lombardi, Kai Liu, Ning Kang, Jin Luo, Benjamin S. Hsiao, Mark Poliks, Ivan Gitsov, Chuan-Jian Zhong
Adv. Mater. Interfaces, September 19, 2017, https://doi.org/10.1002/admi.201700380 Read article

Understanding the Photovoltaic Performance of Perovskite–Spirobifluorene Solar Cells

Understanding the Photovoltaic Performance of Perovskite–Spirobifluorene Solar Cells

Add a pinch of salt: The photovoltaic performance in perovskite solar cells with pristine and lithium-doped hole-transport layers (spiro-OMeTAD) is investigated. The performance of these cells improves upon exposure to air, however, additional doping with a cobalt salt (FK209) delivers a device with improved performance without the need for air.

[Article]
Zhen Song, Jiang Liu, Gang Wang, Wentao Zuo, Cheng Liao, Jun Mei
ChemPhysChem, September 18, 2017, https://doi.org/10.1002/cphc.201700910 Read article

Effect of Carbon Supports on Enhancing Mass Kinetic Current Density of Fe-N/C Electrocatalysts

Effect of Carbon Supports on Enhancing Mass Kinetic Current Density of Fe‐N/C Electrocatalysts

Interface effect: A study into the intrinsic role of carbon supports for Fe-N/C alternatives to Pt/C catalysts for oxygen reduction in fuel cells revealed that when immobilized on suitable support, the Fe−N/C demonstrated an improved mass JK that was comparable to that of Pt/C and higher than most reported M−N/C catalysts (see scheme).

[Full Paper]
Xinghua Chen, Fei He, Yanfei Shen, Yiran Yang, Hao Mei, Songqin Liu, Toshiyuki Mori, Yuanjian Zhang
Chem. Eur. J., September 18, 2017, https://doi.org/10.1002/chem.201703020 Read article

Progress in High-Voltage Cathode Materials for Rechargeable Sodium-Ion Batteries

Progress in High‐Voltage Cathode Materials for Rechargeable Sodium‐Ion Batteries

The recent progress in the high-voltage positive electrode materials for room-temperature sodium-ion batteries is discussed in this review. The issues with the high-voltage electrochemical operation of cathode materials lie mainly in the stability of electrode structure and electrode/electrolyte interfaces. A concise perspective on plausible strategies, design principles, and future research directions are provided.

[Review]
Ya You, Arumugam Manthiram
Adv. Energy Mater., September 18, 2017, https://doi.org/10.1002/aenm.201701785 Read article

Molecular Interlayers in Hybrid Perovskite Solar Cells

Molecular Interlayers in Hybrid Perovskite Solar Cells

Small molecules are increasingly being used as interlayers in perovskite solar cells to modify band energy offsets at an interface, to improve the morphology of active layers, and to enhance the long-term stability of the devices. This article reviews recent advances in the use of molecular interlayers in perovskite cells and introduces relevant examples from the field of organic solar cells.

[Review]
Wentao Deng, Xinxing Liang, Peter S. Kubiak, Petra J. Cameron
Adv. Energy Mater., September 18, 2017, https://doi.org/10.1002/aenm.201701544 Read article

A Gold-Nanoparticle-Based SERS Reporter that Rolls on DNA Origami Templates

A Gold‐Nanoparticle‐Based SERS Reporter that Rolls on DNA Origami Templates

A gold nanoparticle (AuNP)-based plasmonic nano-reporter is demonstrated, in which a AuNP performs as a walker to stepwise roll directionally and progressively on DNA origami. Using another AuNP as a stator, the rolling of the AuNP reporter could generate the inter-particle distance variation, which would be monitored by surface-enhanced Raman scattering (SERS).

[Communication]
Bing Liu, Shaokang Ren, Yikang Xing, Nan Teng, Jun Wang, Dan Zhu, Shao Su, Hongzhen Peng, Lihua Wang, Lianhui Wang, Jie Chao
ChemNanoMat, September 14, 2017, https://doi.org/10.1002/cnma.201700165 Read article

Systematic Study of Effect on Enhancing Specific Capacity and Electrochemical Behaviors of Lithium–Sulfur Batteries

Systematic Study of Effect on Enhancing Specific Capacity and Electrochemical Behaviors of Lithium–Sulfur Batteries

In Li–S batteries, the specific capacity and the electrochemical behaviors are adequately enhanced by the interaction of functional and structural specialties into carbon matrix involving heteroatom doping, graphitization, and surface area, guiding the design of advanced host materials toward high-performance Li–S batteries.

[Full Paper]
Junhao Zhang, Man Huang, Baojuan Xi, Kan Mi, Aihua Yuan, Shenglin Xiong
Adv. Energy Mater., September 14, 2017, https://doi.org/10.1002/aenm.201701330 Read article

Microstructural Characterisations of Perovskite Solar Cells – From Grains to Interfaces: Techniques, Features, and Challenges

Microstructural Characterisations of Perovskite Solar Cells – From Grains to Interfaces: Techniques, Features, and Challenges

The microstructure of perovskite solar cells has been shown to have a large impact on their properties. In this progress report, some of the most important findings relating to how different microstructures influence the performance of perovskite solar cells are summarized, and the possible impact of different characterisation techniques on the results obtained from them are discussed.

[Progress Report]
Mathias Uller Rothmann, Wei Li, Joanne Etheridge, Yi-Bing Cheng
Adv. Energy Mater., September 14, 2017, https://doi.org/10.1002/aenm.201700912 Read article

Tuning Surface Structure of 3D Nanoporous Gold by Surfactant-Free Electrochemical Potential Cycling

Tuning Surface Structure of 3D Nanoporous Gold by Surfactant‐Free Electrochemical Potential Cycling

A surfactant-free potential-cycling approach is developed to tailor the surface structure of 3D nanoporous gold with an abundance of {111} or {100} facets by controlling the scan rates. The {111}-rich sample exhibits dramatically improved electrocatalysis toward the ethanol oxidation reaction in comparison with as-dealloyed conventional nanoporous gold.

[Communication]
Zhili Wang, Shoucong Ning, Pan Liu, Yi Ding, Akihiko Hirata, Takeshi Fujita, Mingwei Chen
Adv. Mater., September 14, 2017, https://doi.org/10.1002/adma.201703601 Read article

Myoglobin and Polydopamine-Engineered Raman Nanoprobes for Detecting, Imaging, and Monitoring Reactive Oxygen Species in Biological Samples and Living Cells

Myoglobin and Polydopamine‐Engineered Raman Nanoprobes for Detecting, Imaging, and Monitoring Reactive Oxygen Species in Biological Samples and Living Cells

Myoglobin and polydopamine-engineered surface-enhanced Raman scattering (MP-SERS) nanoprobes are developed for detection, bioimaging, and real-time monitoring of reactive oxygen species (ROS) with high sensitivity, high specificity, and a wide dynamic range. This study shows that the subcellular imaging of ROS is possible with the MP-SERS probes, and validates SERS-based monitoring of the autophagy process in living cells under starvation conditions.

[Full Paper]
Sumit Kumar, Amit Kumar, Gyeong-Hwan Kim, Won-Kyu Rhim, Kevin L. Hartman, Jwa-Min Nam
Small, September 13, 2017, https://doi.org/10.1002/smll.201701584 Read article

Taming Macromolecules with Light: Lessons Learned from Vibrational Spectroscopy

Taming Macromolecules with Light: Lessons Learned from Vibrational Spectroscopy

Vibrational spectroscopy techniques provide molecular insight into the photoresponse of chemically specific molecular moieties and are therefore invaluable tools to understand how the molecular-scale photoisomerization of azobenzenes is translated into photoinduced orientation, chirality, self-assembly, and mass transport of macromolecules.

[Feature Article]
Jaana Vapaavuori, C. Geraldine Bazuin, Christian Pellerin
Macromol. Rapid Commun., September 12, 2017, https://doi.org/10.1002/marc.201700430 Read article

Bottom Up Chalcogenide Thermoelectric Materials from Solution-Processed Nanostructures

Bottom Up Chalcogenide Thermoelectric Materials from Solution‐Processed Nanostructures

Solution-processed nanostructures have drawn much attention in the thermoelectric community, due to their promise in simultaneously achieving improvement of the power factor and reduction of thermal conductivity. Furthermore, the bottom-up synthesis for solution-processed nanostructures is versatile, simple, and compatible with the scale-up manufacturing, which benefit the practical applications.

[Progress Report]
Defang Ding, Chenguang Lu, Zhiyong Tang
Adv. Mater. Interfaces, September 12, 2017, https://doi.org/10.1002/admi.201700517 Read article

Isolation and Stabilization of LDH 2D Crystals with Ultrahigh Surface Exposure via Polymer Gel Formation

Isolation and Stabilization of LDH 2D Crystals with Ultrahigh Surface Exposure via Polymer Gel Formation

Forming polymer gels by copolymerizing acrylic acid anion and acrylamide with delaminated LDH (layered double hydroxide) is a new strategy for isolating and stabilizing LDH 2D crystals to prevent them from restacking. The polymer networks do not sterically hinder the surface of the 2D crystals, which show high adsorptivity toward phosphate.

[Full Paper]
Dujuan Liang, Xin Peng, Yanan Li, Huiliang Wang, Xiaojing Yang
Adv. Mater. Interfaces, September 11, 2017, https://doi.org/10.1002/admi.201700740 Read article

Tuning of a Vertical Spin Valve with a Monolayer of Single Molecule Magnets

Tuning of a Vertical Spin Valve with a Monolayer of Single Molecule Magnets

Spinterface tuning of a vertical spin-valve is achieved by the chemical functionalization of the spin-injecting electrode with a terbium(III) bis(phthalocyaninato) monolayer grafted from solution. Comparing the results obtained with a similar device fabricated including a diamagnetic layer it is possible to evidence that the single molecule magnets film constitutes an additional spin-scattering layer able to control directly the magnetoresistance strength.

[Full Paper]
Giuseppe Cucinotta, Lorenzo Poggini, Alessandro Pedrini, Federico Bertani, Nicola Cristiani, Martina Torelli, Patrizio Graziosi, Irene Cimatti, Brunetto Cortigiani, Edwige Otero, Philippe Ohresser, Philippe Sainctavit, Alek Dediu, Enrico Dalcanale, Roberta Sessoli, Matteo Mannini
Adv. Funct. Mater., September 11, 2017, https://doi.org/10.1002/adfm.201703600 Read article

Living Bioelectronics: Strategies for Developing an Effective Long-Term Implant with Functional Neural Connections

Living Bioelectronics: Strategies for Developing an Effective Long‐Term Implant with Functional Neural Connections

Bionic implants using metal electrodes have low charge transfer capacity and poor tissue integration. This progress report provides a background on electrode modification techniques, exploring state-of-the art approaches to improving implantable electrodes. The new frontier of cell-based electronics is introduced, detailing approaches that use tissue engineering principles applied to bionic devices. Living bioelectronics will ultimately create a paradigm shift in biomedical electrode design.

[Feature Article]
Josef A. Goding, Aaron D. Gilmour, Ulises A. Aregueta-Robles, Erol A. Hasan, Rylie A. Green
Adv. Funct. Mater., September 11, 2017, https://doi.org/10.1002/adfm.201702969 Read article

Catalytic Materials Based on Surface Coating with Poly(ethyleneimine)-Stabilized Gold Nanoparticles

Catalytic Materials Based on Surface Coating with Poly(ethyleneimine)‐Stabilized Gold Nanoparticles

Obtaining catalytic gold surfaces: Branched poly(ethyleneimine) (bPEI2K) is a reductant and stabilizer suitable for the easy preparation of poly(ethyleneimine)-stabilized gold nanoparticles (PEI@AuNPs) under microwave irradiation. These hybrid nanoparticles exhibit affinity for various surfaces yielding effective and stable catalytic materials

[Full Paper]
Mariano Ortega-Muñoz, Victor Blanco, Fernando Hernandez-Mateo, F. Javier Lopez-Jaramillo, Francisco Santoyo-Gonzalez
ChemCatChem, September 08, 2017, https://doi.org/10.1002/cctc.201700776 Read article

Atomic-Level Coupled Interfaces and Lattice Distortion on CuS/NiS2 Nanocrystals Boost Oxygen Catalysis for Flexible Zn-Air Batteries

Atomic‐Level Coupled Interfaces and Lattice Distortion on CuS/NiS2 Nanocrystals Boost Oxygen Catalysis for Flexible Zn‐Air Batteries

The anomalous CuS/NiS2 interface nanocrystals (INs) with nanointerfaces, subtle lattice distortion with a degree of about 14.7%, and rich defects show excellent electrocatalytic performance for both oxygen evolution reaction and reduction reaction. A Zn-air battery with CuS/NiS2 INs as air-cathode demonstrates high performance, even after bending with various shapes. Flexible CuS/NiS2 INs-based solid-state Zn-air batteries can even power light-emitting diodes.

[Full Paper]
Li An, Yuxuan Li, Mingchuan Luo, Jie Yin, Yong-Qing Zhao, Cailing Xu, Fangyi Cheng, Ying Yang, Pinxian Xi, Shaojun Guo
Adv. Funct. Mater., September 08, 2017, https://doi.org/10.1002/adfm.201703779 Read article

Direct Laser Writing of Superhydrophobic PDMS Elastomers for Controllable Manipulation via Marangoni Effect

Direct Laser Writing of Superhydrophobic PDMS Elastomers for Controllable Manipulation via Marangoni Effect

A facile fabrication of superhydrophobic polydimethylsiloxane (PDMS) elastomers structures that permit controllable manipulation via Marangoni effectthat permit controllable manipulation via Marangoni effect is reported here. Direct laser writing technology is employed to apply a light absorbing and superhydrophobic layer on the PDMS surface. By integrating the functional layer at the desired position or by designing asymmetric structures, typical light-driven devices with fast linear or rotational motions are demonstrated.

[Full Paper]
Wei Wang, Yu-Qing Liu, Yan Liu, Bing Han, Huan Wang, Dong-Dong Han, Jian-Nan Wang, Yong-Lai Zhang, Hong-Bo Sun
Adv. Funct. Mater., September 08, 2017, https://doi.org/10.1002/adfm.201702946 Read article

Investigation on the Interface Modification of TiO2 Surfaces by Functional Co-Adsorbents for High-Efficiency Dye-Sensitized Solar Cells

Investigation on the Interface Modification of TiO2 Surfaces by Functional Co‐Adsorbents for High‐Efficiency Dye‐Sensitized Solar Cells

The influence of interface modification of sensitized TiO2 surfaces on photovoltaic performance is investigated using carboxylic, phosphinic, and phosphonic functional groups of co-adsorbents.

[Article]
Aravind Kumar Chandiran, Shaik M. Zakeeruddin, Robin Humphry-Baker, Mohammad Khaja Nazeeruddin, Michael Grätzel, Frédéric Sauvage
ChemPhysChem, September 07, 2017, https://doi.org/10.1002/cphc.201700486 Read article

Correlation of Sol–Gel Alumina-Supported Cobalt Catalyst Processing to Cobalt Speciation, Ethanol Steam Reforming Activity, and Stability

Correlation of Sol–Gel Alumina‐Supported Cobalt Catalyst Processing to Cobalt Speciation, Ethanol Steam Reforming Activity, and Stability

Evaluation of the details: A careful investigation leads from the synthesis of sol–gel alumina with controlled surface properties to their impact on the cobalt interaction during catalyst preparation, the catalyst activity for hydrogen production, and catalyst deactivation.

[Full Paper]
Aline R. Passos, Leandro Martins, Sandra H. Pulcinelli, Celso V. Santilli, Valérie Briois
ChemCatChem, September 07, 2017, https://doi.org/10.1002/cctc.201700319 Read article

Activated Neutral Alumina as a Simple and Reusable Catalyst for the Synthesis of N,N-Bis[(alkyl/arylthio)methyl]amines: A Solid-Supported Protocol Under Solvent-Free Conditions

Activated Neutral Alumina as a Simple and Reusable Catalyst for the Synthesis of N,N‐Bis[(alkyl/arylthio)methyl]amines: A Solid‐Supported Protocol Under Solvent‐Free Conditions

Going forward in neutral: A new strategy is described for the solid-supported synthesis of N,N-bis[(alkylthio)methyl]amine and N,N-bis[(arylthio)methyl]amine derivatives, catalyzed by activated neutral Al2O3 (calcined at 600 °C) under solvent-free stirring conditions at room temperature (25–30 °C).

[Full Paper]
Animesh Mondal, Chhanda Mukhopadhyay
Asian J. Org. Chem., September 07, 2017, https://doi.org/10.1002/ajoc.201700386 Read article

Optical Detection of Photorelease Kinetics on Gold and Glass Surfaces using Streptavidin-Coupled Biotinylated Photolabile Protecting Groups for Nucleosides

Optical Detection of Photorelease Kinetics on Gold and Glass Surfaces using Streptavidin‐Coupled Biotinylated Photolabile Protecting Groups for Nucleosides

Useful streptavidin: Biotinylated photolabile protecting groups show strong, streptavidin-induced signal enhancement for the in situ probing of photorelease kinetics and efficiency on gold by using surface plasmon resonance (SPR) and on glass by using reflectometric interference spectroscopy (RIfS). NPPOC=2-(2-nitrophenyl)propoxycarbonyl, PEG=polyethylene glycol.

[Article]
Katja Drexler, Julia Smirnova, Marina Galetskaya, Nina Schweizer, Günter. Gauglitz, Ulrich E. Steiner
ChemPhysChem, September 06, 2017, https://doi.org/10.1002/cphc.201700714 Read article

Solvothermal Synthesis, Gas-Sensing Properties, and Solar Cell-Aided Investigation of TiO2–MoOx Nanocrystals

Solvothermal Synthesis, Gas‐Sensing Properties, and Solar Cell‐Aided Investigation of TiO2–MoOx Nanocrystals

Surface layer sensors: Titania anatase nanocrystals were reacted with different concentrations of Mo chloroalkoxide, aimed to depositing Mo oxide species onto the surface anatase. Greatly enhanced response, for all Mo concentrations, was observed to acetone (two orders of magnitude) and to carbon monoxide with respect to pure TiO2, and the investigation of solar cells prepared with the same material helped establish that the charges generated by reaction with the gaseous analytes were mainly transported through the ultra-thin MoOx surface layer.

[Full Paper]
Mauro Epifani, Saulius Kaciulis, Alessio Mezzi, Davide Altamura, Cinzia Giannini, PengYi Tang, Joan R. Morante, Jordi Arbiol, Pietro Siciliano, Elisabetta Comini, Isabella Concina
ChemNanoMat, September 06, 2017, https://doi.org/10.1002/cnma.201700160 Read article

Surface Energy-Controlled SERS Substrates for Molecular Concentration at Plasmonic Nanogaps

Surface Energy‐Controlled SERS Substrates for Molecular Concentration at Plasmonic Nanogaps

Molecular concentration at the electromagnetic hot spots is achieved using surface-enhanced Raman spectroscopy (SERS) substrates with controlled surface energies. The surface energies of the high aspect ratio plasmonic nanostructures are precisely controlled via the selective removal of low-surface energy chemicals that is chemisorbed onto the structures.

[Full Paper]
Sung-Gyu Park, ChaeWon Mun, Xiaofei Xiao, Avi Braun, Sunho Kim, Vincenzo Giannini, Stefan A. Maier, Dong-Ho Kim
Adv. Funct. Mater., September 06, 2017, https://doi.org/10.1002/adfm.201703376 Read article

Active Particle Accumulation at Boundaries: A Strategy to Measure Contact Angles

Active Particle Accumulation at Boundaries: A Strategy to Measure Contact Angles

Active Janus particles swim close to drop wedges in a similar fashion as to solid walls. This behavior adapts to the drop wedges that can be found on surfaces with different functionalizations, showing contact angles from almost 0 to more than 100 degrees. Fascinatingly, over a wide range of contact angles this behavior is reliably captured by a very simple, geometrical model.

[Communication]
Juliane Simmchen, Paolo Malgaretti
ChemNanoMat, September 04, 2017, https://doi.org/10.1002/cnma.201700135 Read article

Direct Imaging of Superwetting Behavior on Solid–Liquid–Vapor Triphase Interfaces

Direct Imaging of Superwetting Behavior on Solid–Liquid–Vapor Triphase Interfaces

The solid–liquid–vapor interface, dominated by a three-phase contact line, usually serves as an active area of interfacial reactions and provides vital insight into surface behaviors. Direct imaging of solid–liquid–vapor triphase interfaces at the micro-/nanoscale are efficient approaches for understanding wetting behaviors. Recent progress on characterization techniques of solid–liquid–vapor interface systems at the microscale/nanoscale is summarized.

[Progress Report]
Yun Peng, Xu Jin, Yongmei Zheng, Dong Han, Kesong Liu, Lei Jiang
Adv. Mater., September 04, 2017, https://doi.org/10.1002/adma.201703009 Read article

Highly Stretchable, Compliant, Polymeric Microelectrode Arrays for In Vivo Electrophysiological Interfacing

Highly Stretchable, Compliant, Polymeric Microelectrode Arrays for In Vivo Electrophysiological Interfacing

Compliant polymeric microelectrode arrays (MEAs) with both high stretchability and enhanced electrode–substrate adhesion are fabricated by taking advantage of wavy-structured electrodes and nanowire-based transition layers. Additionally, good recycling stability and high conductivity are also achieved. Finally, the as-prepared stretchable polymeric MEAs are successfully implanted for neural recording and stimulation.

[Communication]
Dianpeng Qi, Zhiyuan Liu, Yan Liu, Ying Jiang, Wan Ru Leow, Mayank Pal, Shaowu Pan, Hui Yang, Yu Wang, Xiaoqian Zhang, Jiancan Yu, Bin Li, Zhe Yu, Wei Wang, Xiaodong Chen
Adv. Mater., September 04, 2017, https://doi.org/10.1002/adma.201702800 Read article

Intracellular Pathways Involved in Bone Regeneration Triggered by Recombinant Silk–Silica Chimeras

Intracellular Pathways Involved in Bone Regeneration Triggered by Recombinant Silk–Silica Chimeras

This work describes the intracellular pathways leading to osteogenesis for recombinant silk-chimera proteins with potential in regenerative medicine. Using an integrated computational-experimental approach, insight into key interactions for control of osteogenesis is provided, demonstrating involvement of integrin αVβ3, and mitogen-activated protein kinase pathways in osteogenic markers induction promoted by silica surfaces. This is critical for optimized designs for mineralized materials.

[Full Paper]
Zaira Martín-Moldes, Davoud Ebrahimi, Robyn Plowright, Nina Dinjaski, Carole C. Perry, Markus J. Buehler, David L. Kaplan
Adv. Funct. Mater., September 04, 2017, https://doi.org/10.1002/adfm.201702570 Read article

Elastic Modulus Dependence on the Specific Adhesion of Hydrogels

Elastic Modulus Dependence on the Specific Adhesion of Hydrogels

The relationship between material stiffness and specific interaction is analyzed using novel microgel adhesion sensors in combination with an interferometric technique. In general, adhesion of soft polymer network is found to be governed by entropic repulsion, however, strong biomolecular interaction harnesses “softness” in order to reinforce adhesion. Understanding of such mechanosensitivity phenomena is critical for biomaterial development.

[Full Paper]
Hanqing Wang, Fawad Jacobi, Johannes Waschke, Laura Hartmann, Hartmut Löwen, Stephan Schmidt
Adv. Funct. Mater., September 04, 2017, https://doi.org/10.1002/adfm.201702040 Read article

Engineered Axonal Tracts as “Living Electrodes” for Synaptic-Based Modulation of Neural Circuitry

Engineered Axonal Tracts as “Living Electrodes” for Synaptic‐Based Modulation of Neural Circuitry

A biohybrid brain–machine interface strategy is developed using neuron/axon-based “living electrodes” within microcolumnar encasement. The perikaryal segment remains quasi-externalized under optical/electrical arrays on a brain surface, while the axonal segment is microinjected for targeted, synaptic-based neuromodulation of deep host circuitry. This biohybrid approach is at the intersection of neuroscience and engineering to establish biological intermediaries between man and machine.

[Feature Article]
Mijail D. Serruya, James P. Harris, Dayo O. Adewole, Laura A. Struzyna, Justin C. Burrell, Ashley Nemes, Dmitriy Petrov, Reuben H. Kraft, H. Isaac Chen, John A. Wolf, D. Kacy Cullen
Adv. Funct. Mater., September 04, 2017, https://doi.org/10.1002/adfm.201701183 Read article

Surface-Engineering of Red Blood Cells as Artificial Antigen Presenting Cells Promising for Cancer Immunotherapy

Surface‐Engineering of Red Blood Cells as Artificial Antigen Presenting Cells Promising for Cancer Immunotherapy

A red blood cell-based artificial antigen presenting cell system (RBC-based aAPCs) is developed by engineering an antigen peptide-loaded major histocompatibility complex-I (pMHC-I), co-stimulatory CD28 antibody, and interleukin-2 on the RBC surface. Such RBC-based aAPCs could significantly promote T cell proliferation and inflammatory cytokines secretion, and further train T cells to enable cancer cell-specific lysis, offering a new idea for cancer immunotherapy.

[Communication]
Xiaoqi Sun, Xiao Han, Ligeng Xu, Min Gao, Jun Xu, Rong Yang, Zhuang Liu
Small, September 01, 2017, https://doi.org/10.1002/smll.201701864 Read article

Effect of Thiolated Ligands in Au Nanowire Synthesis

Effect of Thiolated Ligands in Au Nanowire Synthesis

The effect of the thiolated ligands in the synthesis of the Au nanowires is explored. The molecular structure of the ligands plays important role in their ability of rendering the Au surface in such short time scale and nonequilibrium condition, and thus provides new approaches for designing Au nanostructures.

[Full Paper]
Yawen Wang, Jiating He, Suzhu Yu, Hongyu Chen
Small, August 30, 2017, https://doi.org/10.1002/smll.201702121 Read article

Bifunctionalized Monomers for Surfaces with Controlled Hydrophobicity

Bifunctionalized Monomers for Surfaces with Controlled Hydrophobicity

Control of surface wettability is crucial for many materials and biomedical applications. An efficient strategy to synthesize monomers suitable for hydrophobic surface elaboration has been developed which relies on the Staudinger reductive amination and amidification. These monomers were used to prepare surfaces bearing two different functional groups and tunable hydrophobic features.

[Full Paper]
Rawia Ben Trad, Emna El Kout, Mejda El Kateb, Mohammed Beji, Jean-Pierre Laugier, Guilhem Godeau, Frédéric Guittard, Thierry Darmanin
ChemPlusChem, August 30, 2017, https://doi.org/10.1002/cplu.201700256 Read article

Interface Engineering of Perovskite Solar Cells with Air Plasma Treatment for Improved Performance

Interface Engineering of Perovskite Solar Cells with Air Plasma Treatment for Improved Performance

Let′s get some air: A mesoporous TiO2 electron-transport layer (ETL) was treated with clean air plasma to improve electron extraction and transport properties at the perovskite/TiO2 interface. This treatment leads to a marked increase in the concentration of Ti3+ and oxygen vacancies on the TiO2 layer surface, which modifies the band alignment at the perovskite/TiO2 interface, leading to a remarkable enhancement in perovskite solar cell efficiencies

[Article]
Xiao Ma, Peng Tang, Dong Liu, Jingquan Zhang, Lianghuan Feng, Lili Wu
ChemPhysChem, August 29, 2017, https://doi.org/10.1002/cphc.201700536 Read article

Polymer-Based Surfaces Designed to Reduce Biofilm Formation: From Antimicrobial Polymers to Strategies for Long-Term Applications

Polymer‐Based Surfaces Designed to Reduce Biofilm Formation: From Antimicrobial Polymers to Strategies for Long‐Term Applications

Antimicrobial polymer surfaces are cationic and deactivate bacteria by interaction with their negatively charged cell envelope. This feature article discusses their mechanism of action, which is controversial, and strategies to prevent their contamination with biomolecules or bacterial cell debris.

[Feature Article]
Esther K. Riga, Maria Vöhringer, Vania Tanda Widyaya, Karen Lienkamp
Macromol. Rapid Commun., August 28, 2017, https://doi.org/10.1002/marc.201700216 Read article

Calculated Nanocube Vacancy Formation Energy and Cohesion Energy at 0 K

Calculated Nanocube Vacancy Formation Energy and Cohesion Energy at 0 K

The Sutton–Chen potential is used to calculate the vacancy formation energy and cohesion energy of Cu nanocubes. It examines the effects of shape, size, and surface orientation on the aforementioned energies, such as the effect of shape on vacancy formation energy, and surface energy. It can be used to choose the size and shape of the particles for optimal reactivity and stability.

[Full Paper]
Cornelia van der Walt, Jacobus J. Terblans, Hendrik C. Swart
Small, August 25, 2017, https://doi.org/10.1002/smll.201701829 Read article

Light-Induced Contraction/Expansion of 1D Photoswitchable Metallopolymer Monitored at the Solid–Liquid Interface

Light‐Induced Contraction/Expansion of 1D Photoswitchable Metallopolymer Monitored at the Solid–Liquid Interface

The contraction and expansion of self-assembled metallopolymeric arrays containing azobenzene units, triggered by UV–vis and white light irradiation are studied with scanning tunneling microscopy at the solid/liquid interface.

[Full Paper]
Mohamed El Garah, Etienne Borré, Artur Ciesielski, Arezoo Dianat, Rafael Gutierrez, Gianaurelio Cuniberti, Stéphane Bellemin-Laponnaz, Matteo Mauro, Paolo Samorì
Small, August 25, 2017, https://doi.org/10.1002/smll.201701790 Read article

Smart Amphiphilic Janus Microparticles: One-Step Synthesis and Self-Assembly

Smart Amphiphilic Janus Microparticles: One‐Step Synthesis and Self‐Assembly

How size influences behavior: Sub-millimeter-sized amphiphilic Janus microparticles are found to self-assemble into clusters whose structures are similar to those made of nanoparticles. The amphiphilic Janus microparticles orient between the water–oil interface to form micelle-like structures. When the water evaporates, the particles aggregate into orderly superstructures.

[Article]
Xue-Hui Ge, Yu-Hao Geng, Jian Chen, Jian-Hong Xu
ChemPhysChem, August 24, 2017, https://doi.org/10.1002/cphc.201700838 Read article

Genesis of a Co–Salicylaldimine Complex on Silica Followed in Situ by FTIR and XAS

Genesis of a Co–Salicylaldimine Complex on Silica Followed in Situ by FTIR and XAS

Immobilization of a Schiff base on SiO2: FTIR and XAS are combined in one experiment to follow the immobilization of cobalt onto γ-amino-propyl modified SiO2 in ethanol using two independent cells. FTIR provides evidence for the modification of the ligand and coordination to the C=N bond. XANES and EXAFS confirm the presence of Co2+ in tetrahedral coordination with four Co-O/N bonds.

[Communication]
Davide Ferri, Abhijeet Gaur, Jan-Dierk Grunwaldt
ChemPhysChem, August 16, 2017, https://doi.org/10.1002/cphc.201700550 Read article

Fabrication of Poly(styrene-co-maleic anhydride)@Ag Spheres with High Surface Charge Intensity and their Self-Assembly into Photonic Crystal Films

Fabrication of Poly(styrene‐co‐maleic anhydride)@Ag Spheres with High Surface Charge Intensity and their Self‐Assembly into Photonic Crystal Films

Photonic crystals: Monodisperse poly- (styrene-co-maleic anhydride)@Ag (PSMA@Ag) core–shell microspheres with high surface charge intensity are prepared. These spheres can self-assemble into ordered photonic crystal (PC) structures. The Ag nanoparticles are uniformly dispersed in the PC films, which exhibit high surface-enhanced Raman scattering (SERS), a low detection limit for 4-aminothiophenol, good uniformity, and reproducibility.

[Full Paper]
Jiajie Bi, Genrui Fan, Suli Wu, Xin Su, Hongbo Xia, Shu-Fen Zhang
ChemistryOpen, August 15, 2017, https://doi.org/10.1002/open.201700118 Read article

Boosting the Supercapacitance of Nitrogen-Doped Carbon by Tuning Surface Functionalities

Boosting the Supercapacitance of Nitrogen‐Doped Carbon by Tuning Surface Functionalities

Super booster! The specific capacitance of a porous N-doped carbon is boosted by orthogonal optimization of microstructure and surface chemistry. The evolution of the surface chemistry is carefully followed by X-ray photoelectron spectroscopy and N2 sorption porosimetry, which reveals stepwise surface functionalization and simultaneous carbon etching during acid treatment.

[Full Paper]
Jasper Biemolt, Ilse M. Denekamp, Thierry K. Slot, Gadi Rothenberg, David Eisenberg
ChemSusChem, August 15, 2017, https://doi.org/10.1002/cssc.201700902 Read article

Highly Enhanced Photoluminescence of Monolayer MoS2 with Self-Assembled Au Nanoparticle Arrays

Highly Enhanced Photoluminescence of Monolayer MoS2 with Self‐Assembled Au Nanoparticle Arrays

The highly enhanced photoluminescence (PL) of chemical vapor deposited (CVD)-grown monolayer MoS2 with uniform self-assembled sub-monolayer Au nanoparticle arrays is reported. The PL intensity of monolayer MoS2 can be enhanced by up to 200 times. The study provides a bottom-up, low-cost, large scale, and highly effective route to enhance the PL of CVD-grown monolayer MoS2.

[Full Paper]
Yi Zeng, Xing Li, Weibing Chen, Jianhui Liao, Jun Lou, Qing Chen
Adv. Mater. Interfaces, August 10, 2017, https://doi.org/10.1002/admi.201700739 Read article

Nanoelectrical and Nanoelectrochemical Imaging of Pt/p-Si and Pt/p+-Si Electrodes

Nanoelectrical and Nanoelectrochemical Imaging of Pt/p‐Si and Pt/p+‐Si Electrodes

About electrons and electrical contact: The interfaces between electrolessly deposited Pt nanoparticles and p-type Si are investigated by atomic force microscopy (AFM to reveal the topographical, electrical, and mechanical properties. Only half of the nanoparticles show electrical contact with the Si substrate, and adhesion of the nanoparticle to the Si is much weaker in electrolyte than in air.

[Full Paper]
Jingjing Jiang, Zhuangqun Huang, Chengxiang Xiang, Rakesh Poddar, Hans-Joachim Lewerenz, Kimberly M. Papadantonakis, Nathan S. Lewis, Bruce S. Brunschwig
ChemSusChem, August 07, 2017, https://doi.org/10.1002/cssc.201700893 Read article

Carbon Nanotubes-Polyurethane Vitrimer Nanocomposites with the Ability of Surface Welding Controlled by Heat and Near-Infrared Light

Carbon Nanotubes‐Polyurethane Vitrimer Nanocomposites with the Ability of Surface Welding Controlled by Heat and Near‐Infrared Light

The carbon nanotubes-polyurethane vitrimer (CNTs-PUV) nanocomposites with the capability of surface welding controlled by heat and near infrared (NIR) light are successfully prepared. The shear strength of the light-welding sample under NIR illumination for 1 min is greater than that of the heat-welding sample at 110 °C for 10 min.

[Full Paper]
Peiyao Yan, Wei Zhao, Yanjun Wang, Yuanyuan Jiang, Changlin Zhou, Jingxin Lei
Macromol. Chem. Phys., August 04, 2017, https://doi.org/10.1002/macp.201700265 Read article

Negligible Electronic Contribution to Heat Transfer across Intrinsic Metal/Graphene Interfaces

Negligible Electronic Contribution to Heat Transfer across Intrinsic Metal/Graphene Interfaces

Temperature dependence of the thermal conductance of palladium (Pd)/graphene/Pd interfaces suggests that although graphene is heavily doped by metals, electrons play a negligible role toward the heat transport across intrinsic metal/graphene interfaces. Heat transfer across the metal/graphene interfaces is enhanced by up to an order of magnitude through atomic-scale pinholes, when graphene is damaged by ion bombardment.

[Full Paper]
Bin Huang, Yee Kan Koh
Adv. Mater. Interfaces, August 04, 2017, https://doi.org/10.1002/admi.201700559 Read article

Removal of Organic Pollutants from Water Using Superwetting Materials

Removal of Organic Pollutants from Water Using Superwetting Materials

Superwetting materials are receiving increasing attention in the field of removal of organic pollutants from water. On the basis of our previous work in the field, we summarized in this account the progress of removal of (1) floating and underwater insoluble, (2) emulsified insoluble, and (3) both insoluble and soluble organic pollutants from water using superwetting materials including 2D porous materials, 3D porous materials and particles.

[Personal Account]
Lingxiao Li, Junping Zhang, Aiqin Wang
Chem. Rec., August 02, 2017, https://doi.org/10.1002/tcr.201700029 Read article

Colloidal Clusters of Plasmonic Nanoparticles with Controlled Topological Parameters

Colloidal Clusters of Plasmonic Nanoparticles with Controlled Topological Parameters

Colloidal clusters of plasmonic nanoparticles with well-controlled topological parameters were successfully prepared by the maneuvering of the amount of Au precursors in the galvanic replacement of Ag nanoprisms. The prepared nanoparticle clusters allowed the exploration of exclusive influence of particle size on the surface-enhanced Raman scattering activity of nanoparticle assemblies.

[Full Paper]
Seunghoon Lee, Seungwoo Kang, Jaeyoung Kim, Younghyun Wy, Sang Woo Han
ChemNanoMat, July 27, 2017, https://doi.org/10.1002/cnma.201700152 Read article

One-Step Spontaneous Formation of Dual Wrinkling on Uniform-Sized Microparticles Induced by Surface

One‐Step Spontaneous Formation of Dual Wrinkling on Uniform‐Sized Microparticles Induced by Surface

Dual wrinkling structure on the surface of uniform-sized biodegradable microparticles is prepared by using blends of hydrophobic polymer and amphiphilic block copolymer and by introducing dimple-forming organic phase change materials. Both labyrinthine and hexagonal dimple structures are spontaneously formed from the conventional microparticle fabrication procedure of the solvent-emulsion evaporation method.

[Full Paper]
Jinsol Im, Dongik Yoo, Jihoon Kim, Sukeun Yoon, Kuk Young Cho
Macromol. Chem. Phys., July 19, 2017, https://doi.org/10.1002/macp.201700152 Read article

Influence of Graphene Oxide on Crystallization Behavior and Chain Folding Surface Free Energy of Poly(vinylidenefluoride-co-hexafluoropropylene)

Influence of Graphene Oxide on Crystallization Behavior and Chain Folding Surface Free Energy of Poly(vinylidenefluoride‐co‐hexafluoropropylene)

Crystallization behavior and chain folding surface free energy of polymer nanocomposites of poly(vinylidene fluoride-co-hexafluoropropylene containing graphene oxide (GO) as potentially useful piezoelectric materials are explored. The results indicate that GO helps in the formation of polar crystals (β-crystal) which are useful for piezoelectric properties.

[Full Paper]
Marzieh Choolaei, Vahabodin Goodarzi, Hossein Ali Khonakdar, Seyed Hassan Jafari, Javad Seyfi, Mohammad Reza Saeb, Liane Häußler, Regine Boldt
Macromol. Chem. Phys., July 04, 2017, https://doi.org/10.1002/macp.201700103 Read article

Universal Bioinert Control of Polystyrene Interfaces via Hydrophobic-Driven Self-Assembled Surface PEGylation with a Well-Defined Block Sequence

Universal Bioinert Control of Polystyrene Interfaces via Hydrophobic‐Driven Self‐Assembled Surface PEGylation with a Well‐Defined Block Sequence

Model interfaces are coated with random, diblock, and triblock copolymers of polystyrene and poly(ethylene glycol) methacrylate. Coating is facilitated with the random copolymer while the coating density decreases using the diblock copolymer and is the lowest with the triblock copolymer. Both the diblock and the triblock copolymers are more efficient to promote hydration and fouling resistance than the random copolymer.

[Full Paper]
Chih-Chen Yeh, Antoine Venault, Lu-Chen Yeh, Arunachalam Chinnathambi, Sulaiman Ali Alharbi, Akon Higuchi, Yung Chang
Macromol. Chem. Phys., July 03, 2017, https://doi.org/10.1002/macp.201700102 Read article

Isolation and Surface Modification of Nanocellulose: Necessity of Enzymes over Chemicals

Isolation and Surface Modification of Nanocellulose: Necessity of Enzymes over Chemicals

Nano-structured cellulose (nanocellulose) is used in a variety of industrial fields, from paper and packaging to food additives or energy. The production of nanocellulose from cellulosic biomass, mostly wood, usually involves environmentally unfriendly chemical processes. This review highlights the use of enzymes for the isolation and modification of nanocellulose as sustainable alternative.

[Review]
Sadaf Afrin, Zoheb Karim
CBEN, June 20, 2017, https://doi.org/10.1002/cben.201600001 Read article

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