Hot TopicsWiley-VCH

Macromol. Rapid Commun.CPHCSmallAM

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.

For recent reviews, see

RSS feed

Recent Articles

Zhiguo Li, Champika N. Weeraman, Julianne M. Gibbs-Davis
Following the Azide-Alkyne Cycloaddition at the Silica/Solvent Interface with Sum Frequency Generation [Communication]

Following the Azide-Alkyne Cycloaddition at the Silica/Solvent Interface with Sum Frequency Generation

Broadband sum frequency generation is applied to monitor the azide-alkyne click reaction at the silica/methanol interface from the decrease of the azide peak associated with the reactant and the increase of the cyano peak associated with the product. From real-time analysis, the reaction order of copper is determined to be two, consistent with the value for the reaction in solution under similar copper concentrations.

ChemPhysChem 2014, 15, No. 11, 2247-2251

Catalytic Role of TiO2 Terminal Oxygen Atoms in Liquid-Phase Photocatalytic Reactions: Oxidation of Aromatic Compounds in Anhydrous Acetonitrile

A stable surface? TiO2-assisted photocatalytic oxidation of organic compounds involves the exchange of surface oxygen on the catalyst, the generation of a surface oxygen vacancy, and the final incorporation of a water molecule to heal the vacancy.

ChemPhysChem 2014, 15, No. 11, 2311-2320

Sebastian P. Scheeler, Dennis Lehr, Ernst-Bernhard Kley, Claudia Pacholski
Top-Up Fabrication of Gold Nanorings [Communication]

Top-Up Fabrication of Gold Nanorings

Gold in the hole: Gold nanorings were prepared by template-assisted self-assembly of wet-chemically synthesized gold nanoparticles and subsequent electroless deposition of gold. For this purpose, hole arrays in silica substrates were fabricated by a combination of electron beam lithography and reactive-ion etching. Gold nanoparticles were deposited at the edges of the holes by dip-coating. Finally, the gold nanoparticles were fused by electroless deposition.

Chem. Asian J. 2014, 9, No. 08, 2072-2076

Tanchen Ren, Zhengwei Mao, Sergio Enrique Moya, Changyou Gao
Immobilization of Enzymes on 2-Hydroxyethyl Methacrylate and Glycidyl Methacrylate Copolymer Brushes [Full Paper]

Immobilization of Enzymes on 2-Hydroxyethyl Methacrylate and Glycidyl Methacrylate Copolymer Brushes

Brushwork: Poly(2-hydroxyethyl methacrylate)-block-poly(2-hydroxyethyl methacrylate-co-glycidyl methacrylate) (PHEMA-block-P (HEMA-co-GMA)) block copolymer brushes were prepared. The density of the polymer brushes and length of the blocks, as well as the subsequent enzyme-immobilization ability was easily tuned. The stability of lysozymes was largely enhanced after being immobilized on the brushes, which retained 64 % of the enzyme activity after storage at 4 °C for 30 days.

Chem. Asian J. 2014, 9, No. 08, 2132-2139

Recent Progress in Biointerfaces with Controlled Bacterial Adhesion by Using Chemical and Physical Methods

Stick or twist: Recent progress in biointerfaces based on smart-responsive molecules or surface topographies has led to efficient approaches for controlling the adhesive behavior of bacteria.

Chem. Asian J. 2014, 9, No. 08, 2004-2016

Liquid Crystals Anchored on Mixed Monolayers of Chiral versus Achiral Molecules: Continuous Change in Orientation as a Function of Enantiomeric Excess

The orientations of liquid crystals (LCs) anchored on monolayers formed from mixtures of chiral versus achiral molecules were compared. Changes in the enantiomeric excess of mixed monolayers of chiral dipeptides gave rise to continuous changes in the orientations of nematic LCs, allowing arbitrary tuning of their azimuthal orientations. In contrast, the same LCs exhibited discontinuous changes in orientation on surfaces presenting mixtures of achiral molecules.

Angew. Chem. Int. Ed. 2014, 53, No. 31, 8079-8083

Jinhye Bae, Thomas P. Russell, Ryan C. Hayward
Osmotically Driven Formation of Double Emulsions Stabilized by Amphiphilic Block Copolymers [Communication]

Osmotically Driven Formation of Double Emulsions Stabilized by Amphiphilic Block Copolymers

Water-in-oil-in-water (w/o/w) double emulsions are spontaneously generated from o/w single emulsions by the osmotic pressure provided by salt species initially dispersed in the oil phase. This phenomenon provides a simple route to tailor block copolymer self-assembly, yielding multi-vesicular structures and hierarchically structured porous films after solvent evaporation.

Angew. Chem. Int. Ed. 2014, 53, No. 31, 8240-8245

Christin Büchner, Leonid Lichtenstein, Xin Yu, J. Anibal Boscoboinik, Bing Yang, William E. Kaden, Markus Heyde, Shamil K. Shaikhutdinov, Radosław Włodarczyk, Marek Sierka, Joachim Sauer, Hans-Joachim Freund
Ultrathin Silica Films: The Atomic Structure of Two-Dimensional Crystals and Glasses [Minireview]

Ultrathin Silica Films: The Atomic Structure of Two-Dimensional Crystals and Glasses

Polishing up the crystal glasses: An overview of the preparation and characterization of ordered silica films on metal supports is reported. In particular, the specific case of a silica bilayer, which exists in a crystalline and a vitreous variety, is discussed and a model of the vitreous silica structure proposed by William Zachariasen in 1932 is verified. Beyond this, the possibility to prepare the crystalline and the glassy structure on the same support leads to the study of the crystal–glass phase transition in real space (see figure).

Chem. Eur. J. 2014, 20, No. 30, 9176-9183

Barry Arkles, Youlin Pan, Gerald L. Larson, Mani Singh
Enhanced Hydrolytic Stability of Siliceous Surfaces Modified with Pendant Dipodal Silanes [Full Paper]

Enhanced Hydrolytic Stability of Siliceous Surfaces Modified with Pendant Dipodal Silanes

Two feet are better than one! Nonfunctional and functional dipodal silanes with structures containing “pendant” rather than “bridged” organofunctionality were synthesized. Surfaces modified with pendant dipodal silanes were found to be more resistant to hydrolysis than the bridged structure with single-carbon separated (disilapropyl)silanes, demonstrating the greatest resistance to hydrolysis and best stability (see figure).

Chem. Eur. J. 2014, 20, No. 30, 9442-9450

Xiaoyan Zhang, Haiyang Zhao, Demei Tian, Hongtao Deng, Haibing Li
A Photoresponsive Wettability Switch Based on a Dimethylamino Calix[4]arene [Full Paper]

A Photoresponsive Wettability Switch Based on a Dimethylamino Calix[4]arene

Photoreversible switching of the host–guest system of dimethylamino calix[4]arene (L) and 4-(phenylazo)benzoic acid (O) is reported. Host L exhibited selective binding and release of O under UV and visible irradiation at 450 and 365 nm, respectively. Moreover, the LO complex was applied as a photocontrolled wettability switch on a functional micro/nanostructured silicon surface with reversible switching between hydrophilic and hydrophobic states (see figure).

Chem. Eur. J. 2014, 20, No. 30, 9367-9371

Gary A. Attard, Ashley Brew, Jin-Yu Ye, David Morgan, Shi-Gang Sun
Oxygen Reduction Reaction Activity on Pt{111} Surface Alloys [Article]

Oxygen Reduction Reaction Activity on Pt{111} Surface Alloys

PtM overlayers (M=Fe, Co or Ni) supported on a Pt{111} electrode are prepared via thermal annealing of aqueous droplets containing MZ+ cations directly attached to the electrode. When a hydrogen ambient is used for thermal annealing, highly active oxygen reduction electrocatalysts are formed. A positive potential shift in PtM oxide formation is seen compared to Pt{111}, which correlates with increased oxygen reduction reaction activity.

ChemPhysChem 2014, 15, No. 10, 2044-2051

Nicolas Dupré, Marine Cuisinier, Jean-Frederic Martin, Dominique Guyomard
Interphase Evolution at Two Promising Electrode Materials for Li-Ion Batteries: LiFePO4 and LiNi1/2Mn1/2O2 [Review]

Interphase Evolution at Two Promising Electrode Materials for Li-Ion Batteries: LiFePO4 and LiNi1/2Mn1/2O2

The importance of the chemical history of the electrode surface before electrochemical cycling as well as the correlation between interface phenomena, the formation/evolution of an interphase, and the electrochemical behavior of LiFePO4 and LiNi1/2Mn1/2O2 electrodes are investigated by magic-angle-spinning nuclear magnetic resonance, electron energy loss spectroscopy, and X-ray photoelectron spectroscopy. These techniques allow the study of interface aging and failure mechanisms.

ChemPhysChem 2014, 15, No. 10, 1922-1938

Joseph S. DuChene, Brendan C. Sweeny, Aaron C. Johnston-Peck, Dong Su, Eric A. Stach, Wei David Wei
Prolonged Hot Electron Dynamics in Plasmonic-Metal/Semiconductor Heterostructures with Implications for Solar Photocatalysis [Communication]

Prolonged Hot Electron Dynamics in Plasmonic-Metal/Semiconductor Heterostructures with Implications for Solar Photocatalysis

Harvesting hot electrons: Plasmon-mediated electron transfer (PMET) in plasmonic (Au/TiO2) photoanodes provides a unique pathway for procuring excited-state electrons that exhibit lifetimes commensurate with the prolonged timescales required for solar photochemistry. These long-lived electrons were harnessed for visible-light-driven hydrogen evolution from water (see picture).

Angew. Chem. Int. Ed. 2014, 53, No. 30, 7887-7891

Josephine Selvaraj, Satyajit Gupta, Steven DelaCruz, Vaidyanathan (Ravi) Subramanian
Role of Reduced Graphene Oxide in the Critical Components of a CdS-Sensitized TiO2-Based Photoelectrochemical Cell [Article]

Role of Reduced Graphene Oxide in the Critical Components of a CdS-Sensitized TiO2-Based Photoelectrochemical Cell

Top of the PECs: N-doped reduced graphene oxide (nRGO) is systematically incorporated into the photoanode, cathode, and redox electrolyte of a photoelectrochemical cell and was shown to favorably influence the cell performance.

ChemPhysChem 2014, 15, No. 10, 2010-2018

Charles Peureux, Viatcheslav Jouikov
Covalent Grafting of Silatranes to Carbon Interfaces [Full Paper]

Covalent Grafting of Silatranes to Carbon Interfaces

Organosilicon electrodes were prepared by silatrane Si-C grafting to a glassy carbon interface to give a benzyl-like system in which a 3 c–4 e orbital is conjugated to the macroscopic π-type substituent (graphite Csp2 network). This process allows one to build carbon-based conducting interfaces with electronically conjugated molecular extensions. Grafting of alkyl silatrane provides stable functional interfaces enabling electrochemical spin-writing.

Chem. Eur. J. 2014, 20, No. 30, 9290-9294

Polar Surface Energies of Iono-Covalent Materials: Implications of a Charge-Transfer Model Tested on Li2FeSiO4 Surfaces

A polar exploration: An expression is derived that describes the effect of electron transfer between two exposed polar surfaces due to the internal electric field generated by the surfaces. This expression is applied to Li2FeSiO4, which is of interest as a possible electrode material for future Li-ion batteries.

ChemPhysChem 2014, 15, No. 10, 2058-2069

Mrinal K. Bera, Travis H. Bray, Ross J. Ellis, Mark R. Antonio
Redox Chemistry of Heteropolyacid Microemulsions [Article]

Redox Chemistry of Heteropolyacid Microemulsions

Face-POM: Three-phase-electrode electrochemistry of polyoxometalate third phases formed by solvent extraction and dissolution of heteropolyacid salts, including 12-phosphotungstic acid (H3PT), by using paraffinic solutions of tri-n-butyl phosphate (TBP) reveal redox events that are markedly shifted and less resolved than the responses in the corresponding aqueous electrolytes due to solubilization of the charge-neutral acids.

ChemElectroChem 2014, 1, No. 07, 1173-1181

Jae Sung Son, Hao Zhang, Jaeyoung Jang, Bed Poudel, Al Waring, Luke Nally, Dmitri V. Talapin
All-Inorganic Nanocrystals as a Glue for BiSbTe Grains: Design of Interfaces in Mesostructured Thermoelectric Materials [Communication]

All-Inorganic Nanocrystals as a Glue for BiSbTe Grains: Design of Interfaces in Mesostructured Thermoelectric Materials

The interfaces in thermoelectric materials can be formed by using bismuth nanocrystals (NCs) capped with (N2H5)4Sb2Te7 ligands that serve as a “glue” for mesoscopic grains, which are joined in hot-pressed pellets or solution-processed thin films. The design of the NC glue allows selective enhancement or decrease of the majority-carrier concentration near the grain boundaries.

Angew. Chem. Int. Ed. 2014, 53, No. 29, 7466-7470

Visible-Light-Induced Electron Transport from Small to Large Nanoparticles in Bimodal Gold Nanoparticle-Loaded Titanium(IV) Oxide

Visible-light-induced electron transport: Visible-light irradiation of TiO2-supported gold nanoparticles (NPs) with a bimodal size distribution (BM-Au/TiO2) gives rise to long-range electron transport from about 14 small NPs to one large Au NP through the conduction band of TiO2. As a result of the enhancement of the charge separation, BM-Au/TiO2 exhibits a high level of visible-light activity for the synthesis of azobenzenes (see picture) from nitrobenzenes.

Angew. Chem. Int. Ed. 2014, 53, No. 28, 7305-7309

Verónica Montes-García, Cristina Fernández-López, Borja Gómez, Ignacio Pérez-Juste, Luis García-Río, Luis M. Liz-Marzán, Jorge Pérez-Juste, Isabel Pastoriza-Santos
Pillar[5]arene-Mediated Synthesis of Gold Nanoparticles: Size Control and Sensing Capabilities [Full Paper]

Pillar[5]arene-Mediated Synthesis of Gold Nanoparticles: Size Control and Sensing Capabilities

Sensing platform: Ammonium pillar[5]arene (AP[5]A)-stabilized Au nanoparticles with quasi-spherical morphology and size control (up to 120 nm) were successfully synthesized by a seeded growth method (see figure). The presence of AP[5]A onto the Au nanoparticle surface allows the detection based on surface-enhanced Raman scattering (SERS) of guest molecules, such as 2-naphthoic acid (2NA) or polycyclic aromatic hydrocarbons (pyrene), directly in water achieving limits of detection of 10−6 and 10−8 M, respectively.

Chem. Eur. J. 2014, 20, No. 27, 8404-8409

Guillaume Durand, Samuele Lisi, Corinne Ravelet, Eric Dausse, Eric Peyrin, Jean-Jacques Toulmé
Riboswitches Based on Kissing Complexes for the Detection of Small Ligands [Communication]

Riboswitches Based on Kissing Complexes for the Detection of Small Ligands

Switch and kiss: Hairpin aptamers (gray) were engineered to switch between unfolded and folded conformations upon binding to their cognate ligand (orange). The folded conformation but not the unfolded one is recognized by a second hairpin termed the aptakiss (yellow) through loop–loop or kissing interactions (red). The detection of the aptakiss–aptamer–ligand ternary complex by SPR or fluorescence anisotropy signals the presence of the target ligand.

Angew. Chem. Int. Ed. 2014, 53, No. 27, 6942-6945

J. Xue, P. T. Lee, R. G. Compton
Electrochemical Detection of Melamine [Full Paper]

Alessia Ciogli, Patrizia Simone, Claudio Villani, Francesco Gasparrini, Aldo Laganà, Donatella Capitani, Nicola Marchetti, Luisa Pasti, Alessandro Massi, Alberto Cavazzini
Revealing the Fine Details of Functionalized Silica Surfaces by Solid-State NMR and Adsorption Isotherm Measurements: The Case of Fluorinated Stationary Phases for Liquid Chromatography [Full Paper]

Revealing the Fine Details of Functionalized Silica Surfaces by Solid-State NMR and Adsorption Isotherm Measurements: The Case of Fluorinated Stationary Phases for Liquid Chromatography

A modern magnifying glass: What is really on the surface of functionalized silica gels? Is surface functionalization “horizontally” or “vertically” oriented? To what extent did it happen? How many silanol groups reacted, and are residual silanol groups accessible? Solid-state NMR spectroscopy and adsorption isotherms come together to answer some very difficult questions (see figure).

Chem. Eur. J. 2014, 20, No. 26, 8138-8148

Monica Distaso, Mirza Mačković, Erdmann Spiecker, Wolfgang Peukert
Formation and Dissolution of Twin ZnO Nanostructures Promoted by Water and Control over Their Emitting Properties [Full Paper]

Formation and Dissolution of Twin ZnO Nanostructures Promoted by Water and Control over Their Emitting Properties

Split at the seam cut! By increasing the water content of N,N-dimethylformamide reaction mixtures, the growth of anisotropic twinned ZnO nanostructures is achieved, characterised by the presence of a seam cut (see figure). Defect formation and surface dissolution occur, especially at the seam cut. The emission from defects is effectively quenched by using poly(vinyl pyrrolidone) during the synthesis.

Chem. Eur. J. 2014, 20, No. 26, 8199-8209

Peter M. Clawin, Cynthia M. Friend, Katharina Al-Shamery
Defects in Surface Chemistry—Reductive coupling of Benzaldehyde on Rutile TiO2(110) [Full Paper]

Defects in Surface Chemistry—Reductive coupling of Benzaldehyde on Rutile TiO2(110)

Defect detective! The surface chemistry of oxygen and oxygenates on Rutile TiO2(110) is of great interest for various applications, and the role of different kinds of defects is hotly disputed. A systematic study of the influence of the bulk defect density in the reductive coupling of benzaldehyde to stilbene reveals that it is proportional to the yield of stilbene and an intermediate. These results indicate a prominent role of interstitial defects.

Chem. Eur. J. 2014, 20, No. 25, 7665-7669

Sidharam P. Pujari, Luc Scheres, Antonius T. M. Marcelis, Han Zuilhof
Covalent Surface Modification of Oxide Surfaces [Review]

Covalent Surface Modification of Oxide Surfaces

Not just scratching the surface: Covalently attached monolayers on oxide surfaces are reviewed with an eye to improved robustness, increased functionalization, understanding structural details, and the resulting potential for applications. Such monolayers, provided they are robust enough, provide a way of improving the properties of the bulk oxide material.

Angew. Chem. Int. Ed. 2014, 53, No. 25, 6322-6356

Asymmetric Epoxidation of cis/trans-β-Methylstyrene Catalysed by Immobilised Mn(Salen) with Different Linkages: Heterogenisation of Homogeneous Asymmetric Catalysis

Getting it fixed: For immobilised Mn(salen) catalysts, a rigid linkage connecting active centres to a support surface is essential to obtain activity and enantioselectivity as high as those obtained in homogeneous systems (see scheme).

Chem. Eur. J. 2014, 20, No. 25, 7830-7841

Estelle Lebègue, Julia Agullo, Mario Morin, Daniel Bélanger
The Role of Surface Hydrogen Atoms in the Electrochemical Reduction of Pyridine and CO2 in Aqueous Electrolyte [Communication]

The Role of Surface Hydrogen Atoms in the Electrochemical Reduction of Pyridine and CO2 in Aqueous Electrolyte

Electrochemistry, fast and slow: An iridium electrode, with a strong affinity for H atoms, shows quasi-reversible electrochemistry for the reduction of pyridinium cations. On the other hand, irreversible reduction occurs at a glassy carbon electrode, characterized by a weaker affinity for H atoms. An increase in the current is observed for both electrodes upon addition of CO2 in the electrolyte.

ChemElectroChem 2014, 1, No. 06, 1013-1017

Jin Chong, Shidi Xun, Jingping Zhang, Xiangyun Song, Haiming Xie, Vincent Battaglia, Rongshun Wang
Li3PO4-Coated LiNi0.5Mn1.5O4: A Stable High-Voltage Cathode Material for Lithium-Ion Batteries [Full Paper]

Li3PO4-Coated LiNi0.5Mn1.5O4: A Stable High-Voltage Cathode Material for Lithium-Ion Batteries

Coating enables LiNi0.5Mn1.5O4 cycling: Li3PO4-coated LiNi0.5Mn1.5O4 materials exhibit a superior cyclability in full cells without obvious fading during 250 cycles. For comparison, noncoated LiNi0.5Mn1.5O4 full cells fade dramatically during 100 cycles (see figure). A Li3PO4 coating layer can effectively protect the high-voltage cathode–electrolyte interface, significantly minimize the electrolyte decomposition, and maintain the integrity of the materials during cycling; this leads to a dramatically enhanced cyclability of LiNi0.5Mn1.5O4 at high operational voltage.

Chem. Eur. J. 2014, 20, No. 24, 7479-7485

Juan Treviño, Carlos Bayón, Ana Ardá, Flavia Marinelli, Raffaella Gandolfi, Francesco Molinari, Jesús Jimenez-Barbero, María J. Hernáiz
New Insights into Glycopeptide Antibiotic Binding to Cell Wall Precursors using SPR and NMR Spectroscopy [Full Paper]

New Insights into Glycopeptide Antibiotic Binding to Cell Wall Precursors using SPR and NMR Spectroscopy

Hit the wall: Binding analysis of different glycopeptide antibiotics toward two cell wall precursor analogues (see figure) suggest that dimerization and membrane anchoring are two interaction processes that may synergically contribute to the activity of semisynthetic antibiotics and that can be further exploited in the search of better drugs to face resistant bacteria.

Chem. Eur. J. 2014, 20, No. 24, 7363-7372

Sandeep G. Yenchalwar, Rami Reddy Devarapalli, Ashvini B. Deshmukh, Manjusha V. Shelke
Plasmon-Enhanced Photocurrent Generation from Click-Chemically Modified Graphene [Full Paper]

Plasmon-Enhanced Photocurrent Generation from Click-Chemically Modified Graphene

Bridge group: The visible-light response of Au nanoparticles (AuNPs) assembled on reduced graphene oxide (rGO) through different molecular bridges was investigated by transient photocurrent generation (see figure). Click-modified rGO shows a greater plasmon-enhanced photocurrent, thus revealing the importance of π conjugation in the photoelectron transfer.

Chem. Eur. J. 2014, 20, No. 24, 7402-7409

Hua Dong, Jordi Ignés-Mullol, Josep Claret, Lourdes Pérez, Aurora Pinazo, Francesc Sagués
Interfacial Chiral Selection by Bulk Species [Full Paper]

Interfacial Chiral Selection by Bulk Species

Amino acids lend a hand: A chiral selection process is reported that takes place in a self-assembled soft monolayer of an achiral amphiphile as a consequence of its interaction with chiral species dissolved in the aqueous subphase. The extent of the chiral selection is statistically measured in terms of the enantiomorphic excess of self-assembled submillimeter domains endowed with well-defined orientational chirality that is unambiguously resolved using optical microscopy.

Chem. Eur. J. 2014, 20, No. 24, 7396-7401

Yanxi Zhang, Zhiyuan Zhao, Davide Fracasso, Ryan C. Chiechi
Bottom-Up Molecular Tunneling Junctions Formed by Self-Assembly [Review]

Theodoros A. Papadopoulos, Hong Li, Eung-Gun Kim, Jie Liu, James A. Cella, Christian M. Heller, Andrew Shu, Antoine Kahn, Anil Duggal, Jean-Luc Brédas
Impact of Functionalized Polystyrenes as the Electron Injection Layer on Gold and Aluminum Surfaces: A Combined Theoretical and Experimental Study [Full Paper]

Surface-Enhanced Raman Spectroscopy: Concepts and Chemical Applications

Expanding vibrational spectroscopy: Since its first observation in 1973, surface-enhanced Raman scattering (SERS) has developed into a mature vibrational spectroscopic technique. The number of applications in chemistry as well as the material and life sciences is increasing rapidly. This Review summarizes the key concepts behind SERS and provides an overview of current applications in chemistry.

Angew. Chem. Int. Ed. 2014, 53, No. 19, 4756-4795

Patricio Ramirez, Javier Cervera, Mubarak Ali, Wolfgang Ensinger, Salvador Mafe
Logic Functions with Stimuli-Responsive Single Nanopores [Concept]

Logic Functions with Stimuli-Responsive Single Nanopores

Porefection: Electrochemical transducers based on single stimuli-responsive polymeric nanopores can support a complete set of logic functions. Thermal, chemical, electrical, and optical stimuli are the input signals required to externally tune the pore conductance (i.e. the logical output).

ChemElectroChem 2014, 1, No. 04, 698-705

Erik M. J. Johansson, Rebecka Lindblad, Hans Siegbahn, Anders Hagfeldt, Håkan Rensmo
Atomic and Electronic Structures of Interfaces in Dye-Sensitized, Nanostructured Solar Cells [Review]

Atomic and Electronic Structures of Interfaces in Dye-Sensitized, Nanostructured Solar Cells

Core of the matter: Key processes in nanostructured dye-sensitized solar cells (DSC) occur at material interfaces containing, for example, oxides, dye molecules, and hole conductors (see picture). The implementation of X-ray-based spectroscopic methods for atomic-level understanding of such properties is reviewed. Examples include energy matching, binding configurations, and molecular orbital composition.

ChemPhysChem 2014, 15, No. 06, 1006-1017

Steven E. F. Kleijn, Stanley C. S. Lai, Marc T. M. Koper, Patrick R. Unwin
Electrochemistry of Nanoparticles [Review]

Electrochemistry of Nanoparticles

Revealing electrochemistry: Key issues related to the electrochemistry of nanoparticles are being uncovered through innovative techniques capable of relating activity and structure, ultimately at the level of a single nanoparticle. Recent advances in experimental approaches are discussed and assessed, with particular emphasis on those that enhance the fundamental understanding of electrocatalysis and nanoscale electrochemistry.

Angew. Chem. Int. Ed. 2014, 53, No. 14, 3558-3586

Lu Han, Tetsu Ohsuna, Zheng Liu, Viveka Alfredsson, Tomas Kjellman, Shunsuke Asahina, Mitsuo Suga, Yanhang Ma, Peter Oleynikov, Keiichi Miyasaka, Alvaro Mayoral, Isabel Díaz, Yasuhiro Sakamoto, Sam M. Stevens, Michael W. Anderson, Changhong Xiao, Nobuhisa Fujita, Alfonso Garcia-Bennett, Kyung Byung Yoon, Shunai Che, Osamu Terasaki
Structures of Silica-Based Nanoporous Materials Revealed by Microscopy [Review]

Kota Shiba, Motohiro Tagaya, Sadaki Samitsu, Satoshi Motozuka
Effective Surface Functionalization of Carbon Fibers for Fiber/Polymer Composites with Tailor-Made Interfaces [Minireview]

Effective Surface Functionalization of Carbon Fibers for Fiber/Polymer Composites with Tailor-Made Interfaces

High in fiber: Carbon fibers (CFs), which are widely utilized in fields ranging from fundamental research to industry, can be functionalized by both thin-layer coating and nanoparticle immobilization (see scheme). In this Minireview, these techniques and some practical applications of functionalized CFs, such as carbon fiber reinforced plastic (CFRP), are overviewed after briefly describing the basic properties of CFs.

ChemPlusChem 2014, 79, No. 02, 197-210

Towards Design Rules for Covalent Nanostructures on Metal Surfaces

Rational design at the nanoscale: Covalent assembly of molecular building blocks is a promising strategy to obtain functional nanostructures in one and two dimensions. This Concept article discusses how computational modeling could be used to obtain design rules that will advance this field towards the predictive design of specific functionalities on specific surfaces (see figure).

Chem. Eur. J. 2014, 20, No. 04, 928-934

Anna Maria Coclite, Rachel M. Howden, David C. Borrelli, Christy D. Petruczok, Rong Yang, Jose Luis Yagüe, Asli Ugur, Nan Chen, Sunghwan Lee, Won Jun Jo, Andong Liu, Xiaoxue Wang, Karen K. Gleason
">25th Anniversary Article: CVD Polymers: A New Paradigm for Surface Modifi cation and Device Fabrication [Review]

25th Anniversary Article: CVD Polymers: A New Paradigm for Surface Modifi cation and Device Fabrication

The deposition of functional polymers from the vapor phase enables new frontiers for device fabrication and technological development. Chemical vapor deposition (CVD) methods have a marked footprint in a wide range of applications from biotechnology to conducting polymers for solar cells. Finally, CVD process implementation to an industrial scale and commercialization are also discussed.

">Adv. Mater. 2013, 25, No. 38, 5392-5423

Mark R. Langille, Michelle L. Personick, Chad A. Mirkin
Plasmon-Mediated Syntheses of Metallic Nanostructures [Review]

Plasmon-Mediated Syntheses of Metallic Nanostructures

Power of the light: Plasmon-mediated synthetic methods are excellent techniques for controlling the growth and final shape of metal nanostructures. These reactions use visible light irradiation and excitation of plasmonic seeds to drive the chemical reduction of metal ions, usually Ag+, by citrate. The underlying physical and chemical factors that influence structural selection are outlined along with some important design considerations for controlling particle shape.

Angew. Chem. Int. Ed. 2013, 52, No. 52, 13910-13940

Single-Molecule Chemical Reactions Tracked at the Atomic-Bond Level

On the right track: Recent advances in noncontact atomic force microscopy (nc-AFM) have enabled the bond-resolved imaging of reaction pathways. In particular, unprecedented insights into complex enediyne cyclization cascades on silver surfaces were gained by single-molecule imaging.

Angew. Chem. Int. Ed. 2013, 52, No. 51, 13521-13523

Where Does It Vibrate? Raman Spectromicroscopy on a Single Molecule

Tip-enhanced Raman spectroscopy combines scanning probe techniques with Raman spectroscopy. Latest developments permit the chemical mapping of individual adsorbed molecules by monitoring molecular vibrations with sub-nanometer resolution. Increased efficiency and reduced photodegradation make this method suitable for studies of adsorbed organic and biomolecules in surface science, catalysis, biochemistry, and related fields.

Angew. Chem. Int. Ed. 2013, 52, No. 43, 11202-11204

Benjamin P. Brown, Loren Picco, Mervyn J. Miles, Charl F. J. Faul
Opportunities in High-Speed Atomic Force Microscopy [Review]

Opportunities in High-Speed Atomic Force Microscopy

Developments in instrumentation for “high-speed AFM” (HSAFM) have been ongoing since the 1990s, and now nanometer resolution imaging and lithography at video rate is readily achievable. This review provides a summary of different approaches to and advances in the development of high-speed AFMs, highlights important discoveries made with new instruments, and discusses new possibilities for HSAFM in materials science.

Small 2013, 9, No. 19, 3201-3211

Cell–Material Interactions Revealed Via Material Techniques of Surface Patterning

Various cellular and extracellular matrix's cues are decoupled via surface patterning to elucidate the role of each factor, such as the effect of cell shape on differentiation of stem cells. The pertinent patterning techniques are introduced. Chemical contrast, surface topography, matrix stiffness, and nanoscaled features of substrate surfaces to regulate cell fate are summarized. The cell geometry cues on cell adhesion and differentiation are highlighted.

Adv. Mater. 2013, 25, No. 37, 5257-5286

Wei Li, Qin Yue, Yonghui Deng, Dongyuan Zhao
Ordered Mesoporous Materials Based on Interfacial Assembly and Engineering [Review]

Ordered Mesoporous Materials Based on Interfacial Assembly and Engineering

The interfaces derived from two phases, including liquid-solid, gas-liquid, liquid-liquid, gas-solid and solid-solid interface, provides a plentiful and crucial space for adsorption, assembly, synthesis and catalysis. In this review, we summarize recent developments in preparing mesoporous materials based on the interfacial assembly and engineering.

Adv. Mater. 2013, 25, No. 37, 5129-5152

Xue-Mei Zhang, Qing-Dao Zeng, Chen Wang
Reversible Phase Transformation at the Solid–Liquid Interface: STM Reveals [Focus Review]

Reversible Phase Transformation at the Solid–Liquid Interface: STM Reveals

Flick of the nanoswitch: STM studies on reversible supramolecular self-assemblies based on H-bonded supramolecular networks, azobenzenes, a triple-decker complex, and guanine and catechol motifs are discussed in this Focus Review. These functional structures can undergo reversible phase transformation when triggered by a suitable external stimulus at the solid–liquid interface, and thus they may be used for fabricating molecular switches and other nanomachines.

Chem. Asian J. 2013, 8, No. 10, 2330-2340

The Registry Index: A Quantitative Measure of Materials' Interfacial Commensurability

Simply sliding: The study of nanoscale tribology offers great potential in the fields of friction, wear, and lubrication. By considering a variety of hexagonal layered materials, including graphene, hexagonal boron nitride, and molybdenum disulfide, it is shown how a simple geometrical parameter, named the “registry index”, can capture the interlayer sliding energy landscape (see picture) as calculated by using advanced electronic structure methods as well as experimentally measured frictional behavior.

ChemPhysChem 2013, 14, No. 11, 2376-2391

Tailoring Cellulose Surfaces by Controlled Polymerization Methods

To expand the utilization of cellulose beyond its traditional uses, it is necessary to modify the surface of the fibers. This paper summarizes the modification of cellulose by controlled polymerization methods such as ATRP, RAFT, ROP, and ROMP. The combination of the excellent properties of cellulose with functional polymers creates new materials of great potential in advanced material applications.

Macromol. Chem. Phys. 2013, 214, No. 14, 1539-1544

X-Ray Photoelectron Spectroscopy for Characterization of Bionanocomposite Functional Materials for Energy-Harvesting Technologies

See beneath the surface! Surface analysis of biologically relevant composites leads to an improved understanding of the chemistry of nanocomposite constituents and the interactions between them (see picture).

ChemPhysChem 2013, 14, No. 10, 2071-2080

Peter Sutter, Eli Sutter
Microscopy of Graphene Growth, Processing, and Properties [Feature Article]

Microscopy of Graphene Growth, Processing, and Properties

Real-time surface microscopy and in situ spectroscopy can provide unique insight into graphene and other 2D materials on metal substrates. The power of in situ microscopy in realizing and probing important functionalities in 2D materials is illustrated by reviewing recent progress in understanding scalable graphene growth on metals, processing by selective chemistry at the graphene/metal interface, and important properties such as band structure, work function, etc.

Adv. Funct. Mater. 2013, 23, No. 20, 2617-2634

Ventsislav K. Valev, Jeremy J. Baumberg, Concita Sibilia, Thierry Verbiest
Chirality and Chiroptical Effects in Plasmonic Nanostructures: Fundamentals, Recent Progress, and Outlook [Progress Report]

Chirality and Chiroptical Effects in Plasmonic Nanostructures: Fundamentals, Recent Progress, and Outlook

Due to the recent development of bottom-up and top-down approaches for material design and fabrication at the nanoscale, giant chiroptical effects have been reported from plasmonic nanostructures. These effects are exhibited both in the linear and in the nonlinear optical regimes and are sensitive to the chirality of nanostructures, the chirality of the experiments and the chirality of light itself.

Adv. Mater. 2013, 25, No. 18, 2517-2534

Weigao Xu, Nannan Mao, Jin Zhang
Graphene: A Platform for Surface-Enhanced Raman Spectroscopy [Review]

Graphene: A Platform for Surface-Enhanced Raman Spectroscopy

Graphene is a unique platform for surface-enhanced Raman spectroscopy (SERS). The multi-role of graphene played in SERS is overviewed, including as a Raman probe, as a substrate, as an additive, and as a building block of a flat surface for SERS. Apart from versatile improvements on SERS performance towards applications, graphene-involved SERS studies are also expected to shed light on the fundamental mechanism of the SERS effect.

Small 2013, 9, No. 08, 1206-1224

David C. Kennedy, Dan Grünstein, Chian-Hui Lai, Peter H. Seeberger
Glycosylated Nanoscale Surfaces: Preparation and Applications in Medicine and Molecular Biology [Concept]

Glycosylated Nanoscale Surfaces: Preparation and Applications in Medicine and Molecular Biology

The sweet spot of nanomedicine: Carbohydrates are key to cellular signalling pathways and major contributors to molecular recognition events at the cell surface. Novel nanomaterials that probe multivalent binding events between carbohydrates and their biological binding partners are driving discovery at this interface (see figure).

Chem. Eur. J. 2013, 19, No. 12, 3794-3800

Erica Ueda, Pavel A. Levkin
Emerging Applications of Superhydrophilic-Superhydrophobic Micropatterns [Progress Report]

Emerging Applications of Superhydrophilic-Superhydrophobic Micropatterns

Creating patterns of extreme wettability on surfaces leads to new functionalities and possibilities in a wide variety of applications. We highlight novel applications of superhydrophilic-superhydrophobic patterned surfaces that are currently being explored, from miniaturized cell and chemical screening platforms to surface tension confined microchannels for separation and diagnostic devices, and give an outlook on the progress in this field.

Adv. Mater. 2013, 25, No. 09, 1234-1247

Engineering Hierarchical Nanostructures by Elastocapillary Self-Assembly

New insights in capillary interactions between nanofilaments have led to versatile and scalable methods to build complex structures that cannot be achieved by any other processing technique. Understanding the control of this process is conducive to the development of high-performance battery and capacitor electrodes as well as photovoltaics, electrical interconnects, and other smart materials.

Angew. Chem. Int. Ed. 2013, 52, No. 09, 2412-2425

Jose Luis Yagüe, Anna Maria Coclite, Christy Petruczok, Karen K. Gleason
Chemical Vapor Deposition for Solvent-Free Polymerization at Surfaces [Talents & Trends]

Josep Sedó, Javier Saiz-Poseu, Felix Busqué, Daniel Ruiz-Molina
Catechol-Based Biomimetic Functional Materials [Review]

Catechol-Based Biomimetic Functional Materials

Catechols participate in several natural processes and functions that range from the adhesive properties of marine organisms to the storage of certain metals ions. Accordingly, many scientists worldwide have been studying and mimicking these natural systems to develop new active materials and coatings. A detailed revision of a wide variety of relevant studies in this field is discussed in this Review.

Adv. Mater. 2013, 25, No. 05, 653-701

Xiaoli Liu, Yajun Xu, Zhaoqiang Wu, Hong Chen
Poly(N-vinylpyrrolidone)-Modified Surfaces for Biomedical Applications [Review]

Poly(N-vinylpyrrolidone)-Modified Surfaces for Biomedical Applications

In this review, a brief introduction to surface modification using poly(N-vinylpyrrolidone) and its copolymers and their potential biomedical applications is presented. Some perspectives on future research in the areas are also discussed.

Macromol. Biosci. 2013, 13, No. 02, 147-154

Francesco Zerbetto
Reverse Engineering of Monolayers and Nanopatterns [Research News]

Reverse Engineering of Monolayers and Nanopatterns

In a molecularly decorated surface, the molecular tiles are “glued” to the surface by binding constants and possibly further “glued” to each other by cooperativity factors. At odds with mosaics, these “glues” come with the tiles and cannot be removed or supplemented. Binding polynomials quantify glue amounts from experimental data and may predict molecular self-organization on surfaces that can be exploited in organic (opto-)electronics.

Adv. Mater. 2013, 25, No. 03, 449-455

Self-Assembled Monolayers with Dynamicity Stemming from (Bio)Chemical Conversions: From Construction to Application

Dynamic surfaces: Construction and applications of dynamic surfaces on which surface properties can be modulated by an external stimulus on user demand are reviewed, with focus on self-assembled monolayers with dynamicity that stems from (bio)chemical conversions on the surface in response to stimuli such as electrical potential, light, enzymes, and pH (see picture).

ChemPhysChem 2013, 14, No. 01, 55-69

Metal-Supported Aluminosilicate Ultrathin Films as a Versatile Tool for Studying the Surface Chemistry of Zeolites

Monolayer zeolite? The application of a variety of “surface-science” techniques to elucidate the surface structures and mechanisms of chemical reactions at zeolite surfaces has long been considered as almost impossible. The growth of a thin aluminosilicate film on a metal single crystal under controlled conditions results in adequate and well-defined model systems for zeolite surfaces.

ChemPhysChem 2013, 14, No. 01, 71-77

Small but Strong Lessons from Chemistry for Nanoscience

In a different light: In a provocative look at nanoscience, Nobel Laureate Roald Hoffmann considers the structural and electronic perplexities of dimensionality, the consequences of bond severance in nano-object formation, the implications of simple acid-base chemistry for stabilization of nanostructures, and what lessons might be learned from surface science on structural relaxation and reconstruction.

Angew. Chem. Int. Ed. 2013, 52, No. 01, 93-103

Michèle Vignes-Adler
The Fizzling Foam of Champagne [Essay]

The Fizzling Foam of Champagne

Bubble, bubble: Why does champagne bubble? Why does it stop bubbling? Does the vintage affect its fizz? Chemistry can answer these and other questions about the wine that is so often associated with celebrations and anniversaries.

Angew. Chem. Int. Ed. 2013, 52, No. 01, 187-190

Molecules at Surfaces: 100 Years of Physical Chemistry in Berlin-Dahlem

Scratching the surface: For over 100 years the interactions of molecules at surfaces have been studied at the Fritz Haber Institute of the Max Planck Society, Berlin. Nobel Laureate Gerhard Ertl looks back at some of the key developments in this time, and the people who made them.

Angew. Chem. Int. Ed. 2013, 52, No. 01, 52-60

© Wiley-VCH 2013.