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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

Edwin A. Baquero, Simon Tricard, Juan Carlos Flores, Ernesto de Jesús, Bruno Chaudret
Highly Stable Water-Soluble Platinum Nanoparticles Stabilized by Hydrophilic N-Heterocyclic Carbenes [Communication]

Highly Stable Water-Soluble Platinum Nanoparticles Stabilized by Hydrophilic N-Heterocyclic Carbenes

On the surface: The thermal decomposition of organometallic complexes with N-heterocyclic carbene ligands affords Pt nanoparticles that are soluble and stable in water for an indefinite period. The 13C–195Pt coupling observed by solid-state NMR spectroscopy confirms carbene coordination to the nanoparticle surface.

Angew. Chem. Int. Ed., September 29, 2014, DOI: 10.1002/anie.201407758

Thomas Caron, Eric Pasquinet, Arie van der Lee, Robert B. Pansu, Vincent Rouessac, Simon Clavaguera, Myriam Bouhadid, Françoise Serein-Spirau, Jean-Pierre Lère-Porte, Pierre Montméat
Efficient Sensing of Explosives by Using Fluorescent Nonporous Films of Oligophenyleneethynylene Derivatives Thanks to Optimal Structure Orientation and Exciton Migration [Full Paper]

Efficient Sensing of Explosives by Using Fluorescent Nonporous Films of Oligophenyleneethynylene Derivatives Thanks to Optimal Structure Orientation and Exciton Migration

Explosive sensing: A structural mechanism that takes into account both the special conformation of oligophenyleneethynylene molecules at a thin-film surface and antenna effects enabled by exciton migration is presented (see figure). This mechanism explains why these crystallized fluorescent films exhibit excellent sensing properties toward nitroaromatic vapors despite the fact that they are nonporous.

Chem. Eur. J., September 26, 2014, DOI: 10.1002/chem.201402271

Development of Electrolytes towards Achieving Safe and High-Performance Energy-Storage Devices: A Review

Liquid, solid, or gel? High-performance electrolytes are important for the success of advanced energy-storage devices. From the view of battery structures and the electrolyte, this Review not only summarizes and discusses the up-to-date development of various electrolyte materials (liquids, solids, and gels), but also emphasizes a comprehensive understanding of electrolyte properties, which is critical for the design of high-performance electrolytes.

ChemElectroChem, September 26, 2014, DOI: 10.1002/celc.201402277

Yit Lung Khung, Siti Hawa Ngalim, Laura Meda, Dario Narducci
Preferential Formation of Si-O-C over Si-C Linkage upon Thermal Grafting on Hydrogen-Terminated Silicon (111) [Full Paper]

Preferential Formation of Si-O-C over Si-C Linkage upon Thermal Grafting on Hydrogen-Terminated Silicon (111)

Si prefers alcohol: Low-temperature hydrosilylation led to a preferential surface grafting of the Si-O-C linkage instead of the classic Si-C linkage when reacted with an alcohol carrying a short bifunctional alkyne (see figure). Even in the presence of another alkyne competitor (trifluoroalkyne) at equimolar concentration, the Si-O-C bond remained the dominant linkage to the silicon surface through nucleophilic reaction.

Chem. Eur. J., September 26, 2014, DOI: 10.1002/chem.201403014

Stimuli-Responsive Supramolecular Interfaces for Controllable Bioelectrocatalysis

Controllable Bioelectrocatalysis: The reversible activation of bioelectrocatalysis by external stimuli at stimuli-responsive supramolecular interfaces integrated with redox enzymes has been established, allowing potential applications in controllable biofuel cells, biosensors, bioelectronic devices, and for energy transduction and information storage. This Minireview outlines the current knowledge and important trends in this area.

ChemElectroChem, September 26, 2014, DOI: 10.1002/celc.201402266

Assembling Mixed Carboxylic Acid Molecules on Hierarchical Structured Aluminum Substrates for the Fabrication of Superoleophobic Surfaces with Controlled Oil Adhesion

Like oil and water: Superoleophobic surfaces with tunable adhesion were obtained by assembling mixed carboxylic acid on nanostructured aluminum substrates. The surface adhesion can be controlled by simply controlling the surface chemical composition (see figure).

ChemPlusChem, September 22, 2014, DOI: 10.1002/cplu.201402237

Fabian Bebensee, Katrine Svane, Christian Bombis, Federico Masini, Svetlana Klyatskaya, Flemming Besenbacher, Mario Ruben, Bjørk Hammer, Trolle R. Linderoth
A Surface Coordination Network Based on Copper Adatom Trimers [Communication]

A Surface Coordination Network Based on Copper Adatom Trimers

Cu-trimer nodes: Using scanning tunneling microscopy and X-ray photoelectron spectroscopy, tetrahydroxybenzene (THB) is shown to dehydrogenate when adsorbed on a Cu(111) surface and form a highly reactive ligand. Density functional calculations confirm that the ligand stabilizes copper adatom trimers and creates a surface coordination network that is a two-dimensional analogue of metal–organic frameworks.

Angew. Chem. Int. Ed., September 22, 2014, DOI: 10.1002/anie.201406528

Marie-Alexandra Neouze, Martin Kronstein, Marco Litschauer, Michael Puchberger, Cristina Coelho, Christian Bonhomme, Christel Gervais, Frederik Tielens
Exploring the Molecular Structure of Imidazolium–Silica-Based Nanoparticle Networks by Combining Solid-State NMR Spectroscopy and First-Principles Calculations [Full Paper]

Exploring the Molecular Structure of Imidazolium–Silica-Based Nanoparticle Networks by Combining Solid-State NMR Spectroscopy and First-Principles Calculations

Sourcing luminescence: Imidazolium–silica-based nanoparticle networks (INNs) have been synthesized and characterized (see picture). A molecular model for the imidazolium–silica network is presented and described. The presence of water near the silica surface and its influence on the position of the counteranions in the INN has been shown.

Chem. Eur. J., September 21, 2014, DOI: 10.1002/chem.201403730

Marvin U. Herrera, Takashi Ichii, Kuniaki Murase, Hiroyuki Sugimura
Use of Diode Analogy in Explaining the Voltammetric Characteristics of Immobilized Ferrocenyl Moieties on a Silicon Surface [Communication]

Use of Diode Analogy in Explaining the Voltammetric Characteristics of Immobilized Ferrocenyl Moieties on a Silicon Surface

The ferrocene-terminated Si (Si-Fc) as diodes: The diode nature of Si-Fc samples is attributed to the existence of a potential barrier between the Si substrate and the ferrocene layer. The diode nature of Si-Fc samples can be associated with some of its characteristics, such as the dependence of its cyclic voltammetry response on types of substrate and illumination.

ChemElectroChem, September 15, 2014, DOI: 10.1002/celc.201402144

Maarten Bloemen, Ben Sutens, Ward Brullot, Ann Gils, Nick Geukens, Thierry Verbiest
Two-Step Directional Surface Modification of Iron Oxide Nanoparticles with Protected Siloxanes [Communication]

Two-Step Directional Surface Modification of Iron Oxide Nanoparticles with Protected Siloxanes

Nanoparticle functionality: Iron oxide nanoparticles are functionalized by protected functional siloxanes. The functional group is deprotected on the nanoparticle itself, solving multiple issues related to the use of siloxanes. This procedure is highly reproducible and not limited to the discussed functionalities.

ChemPlusChem, September 15, 2014, DOI: 10.1002/cplu.201402283

Charles Esnault, Axelle Renodon-Cornière, Masayuki Takahashi, Nathalie Casse, Nicolas Delorme, Guy Louarn, Fabrice Fleury, Jean-François Pilard, Benoît Chénais
Assessment of DNA Binding to Human Rad51 Protein by using Quartz Crystal Microbalance and Atomic Force Microscopy: Effects of ADP and BRC4-28 Peptide Inhibitor [Article]

Assessment of DNA Binding to Human Rad51 Protein by using Quartz Crystal Microbalance and Atomic Force Microscopy: Effects of ADP and BRC4-28 Peptide Inhibitor

The long and short of it: A Au surface is modified by in situ reduction of aryldiazonium salts, and single-stranded DNA is covalently linked to the surface. A study of interactions of human Rad51 protein with DNA indicated that the presence of ADP promotes elongation of the Rad51 filament, whereas BRC4-28 peptide inhibits filament assembly.

ChemPhysChem, September 11, 2014, DOI: 10.1002/cphc.201402451

Xiaoming Li, Yanli Liu, Xiufeng Song, Hao Wang, Haoshuang Gu, Haibo Zeng
Intercrossed Carbon Nanorings with Pure Surface States as Low-Cost and Environment-Friendly Phosphors for White-Light-Emitting Diodes [Communication]

Intercrossed Carbon Nanorings with Pure Surface States as Low-Cost and Environment-Friendly Phosphors for White-Light-Emitting Diodes

Fluorescent nanomaterials: A one-step hydrothermal method to synthesize intercrossed carbon nanorings (see picture) with relatively pure hydroxy surface states is reported. The hydroxyl surface states make it possible to overcome aggregation-induced quenching effects and to emit scarce stable yellow-orange luminescence in both colloidal and solid states.

Angew. Chem. Int. Ed., September 11, 2014, DOI: 10.1002/anie.201406836

Hao Wang, Zachary D. Schultz
TERS Detection of αVβ3 Integrins in Intact Cell Membranes [Communication]

TERS Detection of αVβ3 Integrins in Intact Cell Membranes

Staying on tip: RGD–Integrin binding in intact cell membranes is detected using controlled plasmonics between a cyclic-RGD peptide functionalized nanoparticle and a TERS tip. The observed TERS signal from the nanoparticles on cells matches the surface enhanced Raman signal for the purified αVβ3 Integrin receptor, demonstrating the selectivity. This enables the characterization of receptor binding in intact cell membranes.

ChemPhysChem, September 11, 2014, DOI: 10.1002/cphc.201402466

Frederik H. Kriel, Rossen Sedev, Craig Priest
Capillary Filling of Nanoscale Channels and Surface Structure [Review]

Qiang Wei, Katharina Achazi, Hendrik Liebe, Andrea Schulz, Paul-Ludwig Michael Noeske, Ingo Grunwald, Rainer Haag
Mussel-Inspired Dendritic Polymers as Universal Multifunctional Coatings [Communication]

Mussel-Inspired Dendritic Polymers as Universal Multifunctional Coatings

Rapid and universal coatings were developed by mussel-inspired dendritic polyglycerol that mimics mussel foot proteins with regard to functional groups, molecular weight, and molecular structure. Multiple further modifications can be achieved by either pre- or post-functionalization and control of surface roughness.

Angew. Chem. Int. Ed., September 8, 2014, DOI: 10.1002/anie.201407113

Andrea Basagni, Luciano Colazzo, Francesco Sedona, Marco Di Marino, Tommaso Carofiglio, Elisa Lubian, Daniel Forrer, Andrea Vittadini, Maurizio Casarin, Alberto Verdini, Albano Cossaro, Luca Floreano, Mauro Sambi
Stereoselective Photopolymerization of Tetraphenylporphyrin Derivatives on Ag(110) at the Sub-Monolayer Level [Full Paper]

Stereoselective Photopolymerization of Tetraphenylporphyrin Derivatives on Ag(110) at the Sub-Monolayer Level

Sub-monolayer photochemistry: A Tetraphenylporphyrin derivative carrying para-amino-phenyl functional groups is used to obtain extended and highly ordered molecular wires on Ag(110) through a photochemical approach. A low-to-high density approach is used in order to not sterically prevent the conformational adaptation of the molecules during the reaction (see figure).

Chem. Eur. J., September 8, 2014, DOI: 10.1002/chem.201403208

D. Roy, N. Tiwari, K. Mukhopadhyay, T. Shripathi, A. K. Saxena
The Role of Functional Moieties on Carbon Nanotube Surfaces in Solar Energy Conversion [Article]

The Role of Functional Moieties on Carbon Nanotube Surfaces in Solar Energy Conversion

Nanotube-based organic photovoltaics: An easily dispersible multiwalled carbon nanotube (MWCNT) derivative is prepared, and provides a platform for the synthesis of the phenyl butyric acid methyl ester derivative. Subsequently, pristine MWCNTs and the amide and ester derivatives are studied to provide an insight into influence of nanotube morphology on photovoltaic characteristics.

ChemPhysChem, September 5, 2014, DOI: 10.1002/cphc.201402268

Uncovering the Stoichiometry of Pyrococcus furiosus RNase P, a Multi-Subunit Catalytic Ribonucleoprotein Complex, by Surface-Induced Dissociation and Ion Mobility Mass Spectrometry

The subunit stoichiometry of archaeal RNase P, a multi-subunit ribonucleoprotein complex, was determined by surface-induced dissociation coupled with ion mobility mass spectrometry. Native MS studies with the proteins showed RPP21·RPP29 and (POP5·RPP30)2 complexes, but indicated a 1:1 composition for all subunits when either one or both protein complexes bind the cognate RNA.

Angew. Chem. Int. Ed., September 4, 2014, DOI: 10.1002/anie.201405362

Anyin Li, Zane Baird, Soumabha Bag, Depanjan Sarkar, Anupama Prabhath, Thalappil Pradeep, R. Graham Cooks
Using Ambient Ion Beams to Write Nanostructured Patterns for Surface Enhanced Raman Spectroscopy [Communication]

Using Ambient Ion Beams to Write Nanostructured Patterns for Surface Enhanced Raman Spectroscopy

Electrolytic spray deposition was employed for the formation of nanoparticle spots on various substrates in air. These materials are rugged, versatile substrates for surface-enhanced Raman spectroscopy, in which they lead to good enhancements. Lithographic applications of this method of ion deposition were also investigated.

Angew. Chem. Int. Ed., September 4, 2014, DOI: 10.1002/anie.201406660

Megan Buonaiuto, Susanna Neuhold, David J. Schroeder, Carmen M. Lopez, John T. Vaughey
Functionalizing the Surface of Lithium-Metal Anodes [Full Paper]

Functionalizing the Surface of Lithium-Metal Anodes

Interfacing: Stabilizing the surface of lithium metal is an important challenge that must be overcome to enable lithium–air or lithium–sulfur batteries to succeed. Controlling the interface between the electrolyte and lithium is thus critical. By attaching vinyl-containing silanes to the hydroxy-terminated surface of lithium metal, a critical functional group is introduced at this interface that can be used to tailor this critical interaction (see figure; scale bars: 500 μm).

ChemPlusChem, September 3, 2014, DOI: 10.1002/cplu.201402084

Meng Li, Grace E. M. Lewis, Tony D. James, Yi-Tao Long, Barbara Kasprzyk-Hordern, John M. Mitchels, Frank Marken
Oil|Water Interfacial Phosphate Transfer Facilitated by Boronic Acid: Observation of Unusually Fast Oil|Water Lateral Charge Transport [Article]

Oil|Water Interfacial Phosphate Transfer Facilitated by Boronic Acid: Observation of Unusually Fast Oil|Water Lateral Charge Transport

It makes sense: Anion transfer for highly hydrophilic phosphate and hydroxide anions into a water-immiscible organic phase is driven with a manganese(II/III) redox system and facilitated with a hydrophobic oil-based boronic acid. It is shown that phosphate transfer is facilitated by boronic acid. Improved boronic acid facilitators and nanotrench electrodes are discussed in terms of future feasibility for phosphate sensing applications.

ChemElectroChem, September 3, 2014, DOI: 10.1002/celc.201402181

The Major Influences of Substituent Size and Position of 3,4-Propylenedioxythiophene on the Formation of Highly Hydrophobic Nanofibers

Choosing a position: The controlled formation of hydrophobic fibers by careful choice of the position of the hydrophobic substituent has been achieved. The 3-position of 3,4-propylenedioxythiophene is the best to preserve the presence of nanofibers when a voluminous substituent is introduced, owing to longer polymer chains and higher hydrophobicity (see figure).

ChemPlusChem, September 1, 2014, DOI: 10.1002/cplu.201402187

Kristina I. Lilova, Carolyn I. Pearce, Kevin M. Rosso, Alexandra Navrotsky
Energetics of Spinels in the Fe-Ti-O System at the Nanoscale [Article]

Energetics of Spinels in the Fe-Ti-O System at the Nanoscale

To nano or not to nano? Assessment of the mixing thermodynamics and the effect of the particle size on Fe-Ti spinel oxides leads to an intriguing conclusion about the heats of mixing on both macro and nanoscale. The energetics of the nanosized spinel oxides turn out to be predictable based only on knowledge of their macroscale energetics and surface energies, which are consistent regardless of composition. The findings have important implications for designing nanoscale spinel oxides with desirable properties.

ChemPhysChem, September 1, 2014, DOI: 10.1002/cphc.201402441

Chao Hu, Xuan Zhang, Xinshi Li, Yan Yan, Guangcheng Xi, Haifeng Yang, Hua Bai
Au Photosensitized TiO2 Ultrathin Nanosheets with {001} Exposed Facets [Communication]

Au Photosensitized TiO2 Ultrathin Nanosheets with {001} Exposed Facets

Self-reduction: A general route for the direct growth of metal particles on TiO2 nanosheets with (001) exposed facets by an oxygen-vacancy-driven self-redox reaction is reported. Because there is no need for thermal treatment to remove stabilizing agents, the structure of the nanoparticles can also be retained, preserving the active sites associated with the high activity (see scheme).

Chem. Eur. J., August 29, 2014, DOI: 10.1002/chem.201403428

Bipolar Tribocharging Signal During Friction Force Fluctuations at Metal–Insulator Interfaces

Friction force fluctuation and tribocurrent generation at metal–insulator interfaces show a strong correlation during sliding contacts. The reported results suggest that these two phenomena have a common origin that must be associated with the occurrence of strong electrostatic interactions at the interface.

Angew. Chem. Int. Ed., August 28, 2014, DOI: 10.1002/anie.201406541

Converting Ag2S-CdS and Ag2S-ZnS into Ag-CdS and Ag-ZnS Nanoheterostructures by Selective Extraction of Sulfur

Pick and choose: A three-step strategy for synthesizing Ag-MS (M=Zn, Cd) nanoheterostructures by following a solution–liquid–solid (SLS; see figure) mechanism with Ag2S nanoparticles as catalysts, followed by conversion of Ag2S sections of the heterostructures into silver nanoparticles by selective extraction of sulfur, is reported.

Chem. Asian J., August 28, 2014, DOI: 10.1002/asia.201402729

Quinone-Modified Surfaces for Enhanced Enzyme–Electrode Interactions in Pyrroloquinoline-Quinone-Dependent Glucose Dehydrogenase Anodes

Enzymes and electrodes in sync: Modification of carbonaceous electrodes with mediators with the appropriate redox potential, and a fast electron-transfer rate, creates an “electron sink” on the electrode surface. This effect pulls electrons from the cofactor, increasing the electron-transfer rate and generating higher current densities.

ChemElectroChem, August 28, 2014, DOI: 10.1002/celc.201402104

Sungju Yu, Yong Hwa Kim, Su Young Lee, Hyeon Don Song, Jongheop Yi
Hot-Electron-Transfer Enhancement for the Efficient Energy Conversion of Visible Light [Communication]

Hot-Electron-Transfer Enhancement for the Efficient Energy Conversion of Visible Light

A core–shell nanostructure with three distinct components enables the efficient production of H2 from water and significant electron harvesting under visible-light irradiation because of enhanced hot-electron injection, the formation of a Schottky junction, and high-performance electron filtering. The electron transfer pathway is elucidated through steady-state and time-resolved photoluminescence spectroscopy.

Angew. Chem. Int. Ed., August 28, 2014, DOI: 10.1002/anie.201405598

Song Bai, Chengming Wang, Mingsen Deng, Ming Gong, Yu Bai, Jun Jiang, Yujie Xiong
Surface Polarization Matters: Enhancing the Hydrogen-Evolution Reaction by Shrinking Pt Shells in Pt–Pd–Graphene Stack Structures [Communication]

Surface Polarization Matters: Enhancing the Hydrogen-Evolution Reaction by Shrinking Pt Shells in Pt–Pd–Graphene Stack Structures

Less is more: Pt–Pd–graphene stack structures (see picture) are prepared by a new method that allows control of the thickness of the Pt shell. This thickness correlates with performance in the hydrogen-evolution reaction (HER). As a result of surface polarization, the HER activity actually increases with decreasing Pt thickness, opening possibilities of using less Pt.

Angew. Chem. Int. Ed., August 26, 2014, DOI: 10.1002/anie.201406468

Yumin Qian, Tamio Ikeshoji, Yuan-yuan Zhao, Minoru Otani
Vibrational Dynamics of Sulfate Anion Adsorption on Pt(111) Surface: Ab Initio Molecular Dynamics Simulations [Communication]

Vibrational Dynamics of Sulfate Anion Adsorption on Pt(111) Surface: Ab Initio Molecular Dynamics Simulations

A strong effect: The controversy over vibrational properties of sulfate adsorption on Pt(111) surface originates from the different adsorption models in use. Ab initio molecular dynamics simulations employing different models yield a unified interpretation for various experimental and simulation results. The model (right side) that best approximates the experimental environments reproduces the experimentally observed Stark effect.

ChemElectroChem, August 21, 2014, DOI: 10.1002/celc.201402205

Peter Felfer, Paul Benndorf, Anthony Masters, Thomas Maschmeyer, Julie M. Cairney
Revealing the Distribution of the Atoms within Individual Bimetallic Catalyst Nanoparticles [Communication]

Revealing the Distribution of the Atoms within Individual Bimetallic Catalyst Nanoparticles

Atomic cartography: Atom-probe tomography reveals the atomic structure of Au@Ag nanoparticles. The atomic arrangement of the particle is reconstructed with a resolution of ±0.5 nm and shows that the surface coverage of Ag is influenced by the presence of residues from the synthesis. There is also a relationship between the particle’s surface curvature and the Ag surface coverage (surface excess, ΓAg).

Angew. Chem. Int. Ed., August 19, 2014, DOI: 10.1002/anie.201405043

Takeshi Hasegawa, Takafumi Shimoaka, Nobutaka Shioya, Kohei Morita, Masashi Sonoyama, Toshiyuki Takagi, Toshiyuki Kanamori
Stratified Dipole-Arrays Model Accounting for Bulk Properties Specific to Perfluoroalkyl Compounds [Communication]

Stratified Dipole-Arrays Model Accounting for Bulk Properties Specific to Perfluoroalkyl Compounds

Chain effects: A perfluoroalkyl (Rf) group with (CF2)9 or longer spontaneously aggregates in a hexagonal manner through the stratified dipole-arrays aggregation mechanism, which explains Rf-specific bulk properties (see picture).

ChemPlusChem, July 30, 2014, DOI: 10.1002/cplu.201402156

Towards the Realization of Ab Initio Dynamics at the Speed of Molecular Mechanics: Simulations with Interpolated Diabatic Hamiltonian

Surface travel in less time: Simulating multiple excited-state trajectories of complex systems is challenging due to the computational costs. Interpolation, in combination with a conventional molecular mechanics approach, is presented as a method for overcoming this issue.

ChemPhysChem, July 30, 2014, DOI: 10.1002/cphc.201402226

Direct Photocatalysis for Organic Synthesis by Using Plasmonic-Metal Nanoparticles Irradiated with Visible Light

Making changes with visible light: Recent developments in the direct photocatalysis of plasmonic-metal nanoparticles are described, with a focus on the role of the localized surface plasmon resonance (LSPR) effect in plasmonic metals and their applications in organic transformations (see figure). The role of light irradiation in the catalyzed reactions and the light-excited energetic electron reaction mechanisms will be highlighted.

Chem. Asian J., July 22, 2014, DOI: 10.1002/asia.201402310

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.