Article
Multidisciplinary Sciences
Lukasz Baran, Pablo Llombart, Wojciech Rzysko, Luis G. MacDowell
Summary: This study investigates the atomic-scale friction behavior of ice during sliding using computer simulations. The results show that the lubricating properties of ice can be controlled by altering the material of the slider, temperature, and pressure. This research is significant for understanding the microscopic mechanisms of ice slipperiness.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Materials Science, Multidisciplinary
Haimei Zheng
Summary: The development of liquid cells for transmission electron microscopy has revolutionized the ability to track nanoscale structural, morphological, or chemical changes during materials growth and applications. This advancement allows for capturing nanoscale dynamic processes of materials and is expected to accelerate the discovery of novel materials for various applications in energy storage, catalysis, sensors, and other functional devices.
Article
Chemistry, Multidisciplinary
Samuel Trevenen, Md Anisur Rahman, Heather S. C. Hamilton, Alexander E. Ribbe, Laura C. Bradley, Peter J. Beltramo
Summary: Control over the interparticle interaction energy is necessary to create long-range ordered structures with complex configurations via interfacially trapped anisotropic particles. Colloidal ellipsoids with nanoscale porosity exhibit a reduced interparticle capillary attraction at a water-air interface compared to their smooth counterparts. The behavior of porous ellipsoids at the interface, including the shorter-range capillary interaction potential and the absence of quadrupolar symmetry, can be used to engineer the self-assembly of complex two-dimensional microstructures.
Article
Chemistry, Physical
Edgardo M. Gavilan-Arriazu, Michael P. Mercer, Daniel E. Barraco, Harry E. Hoster, Ezequiel P. M. Leiva
Summary: Recent experimental research has addressed the electrochemical Li-ion intercalation in individual nanosized particles, providing a transparent 2-dimensional zone diagram representation for rapid diagnosis of system reversibility and diffusion length. The model framework elucidates the heterogeneous behavior of nanosized particles with similar sizes but different shapes, presenting an outlook for realistic multiscale modeling of real materials.
Review
Materials Science, Multidisciplinary
Matthias Militzer, Christopher Hutchinson, Hatem Zurob, Goro Miyamoto
Summary: This review critically analyzes the different approaches to model the austenite-ferrite transformation at different length scales, and reviews both semi-empirical and fundamental models, with a focus on polygonal ferrite formation in low and medium carbon steels, as well as the formation of ferrite with more complex morphologies.
INTERNATIONAL MATERIALS REVIEWS
(2023)
Article
Chemistry, Physical
Srikanth Nayak, Raju R. Kumal, Seung Eun Lee, Ahmet Uysal
Summary: We investigated the adsorption of trivalent neodymium on floating arachidic acid films using two surface specific probes, sum frequency generation spectroscopy and X-ray fluorescence near total reflection. Our findings showed that neodymium ions can compensate for the surface charge of the arachidic acid film without charge reversal. However, changes in the bulk concentration of neodymium ions affected the interfacial water structure. Additionally, the presence of a high concentration of NaCl led to overcharging at a certain Nd3+ concentration.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Multidisciplinary Sciences
He-Yun Du, Yi-Fan Huang, Deniz Wong, Mao-Feng Tseng, Yi-Hsin Lee, Chen-Hao Wang, Cheng-Lan Lin, Germar Hoffmann, Kuei-Hsien Chen, Li-Chyong Chen
Summary: High spatial resolution techniques such as near-field scanning electrochemical microscopy and redox mapping were used to study heterogeneous charge transfer behavior of layered MoS2 flakes in organic solutions, providing insights into area and layer-dependent reactivity. This study also revealed a band alignment occurring at the liquid-solid interface through detailed analysis of local processes such as band offset and faradaic current confinement.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Fan Wang, Peng Yang, Xinglin Tao, Yuxiang Shi, Shuyao Li, Zhaoqi Liu, Xiangyu Chen, Zhong Lin Wang
Summary: The study investigates the electrification mechanism at liquid-gas interfaces by using an acoustic levitation method. Positive charges are generated on water droplets due to the tribomotion induced by ultrasound wave, with the charge amount reaching saturation within 30s. The presence of solid particles in droplets increases the transferred charge amount, while higher ion concentration suppresses charge generation.
Article
Chemistry, Multidisciplinary
Beibei Wang, Bangqi Yin, Zhao Zhang, Yixuan Yin, Yang Yang, Haiqiao Wang, Thomas P. Russell, Shaowei Shi
Summary: By using the interactions between nanoparticles and polymeric ligands, nanoparticle surfactants can be generated at the liquid-liquid interface, increasing the binding energy. Through a simplified model, it is found that competitive ligands can reduce the binding energy, leading to the dissociation and disassembly of the surfactants at the interface and allowing the construction of responsive and reconfigurable all-liquid systems.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Analytical
S. Sudalaimani, K. Sanjeev Kumar, A. Esokkiya, C. Suresh, K. Giribabu
Summary: This study demonstrated the electrochemical sensing of putrescine and cadaverine using a liquid-liquid microinterface strategy, with improved sensitivity achieved by the microinterface structure and the addition of dibenzo-18-crown-6. The peak shaped voltammogram in the backward scan indicated linear diffusion of putrescine and cadaverine, and the presence of dibenzo-18-crown-6 enhanced the detection ability for both biogenic amines.
Article
Chemistry, Multidisciplinary
Manuel R. Uhlig, Ricardo Garcia
Summary: The research found that the hydration layer structure of capillary condensation phenomenon at the nanoscale is independent of the water volume for crystalline surfaces.
Article
Chemistry, Multidisciplinary
Ke Li, Houbing Zou, Rammile Ettelaie, Jingxia Zhang, Hengquan Yang
Summary: This study presents a novel biocatalytic cascade using Pickering emulsion droplets with two enzymes localized separately in the outer and inner interfacial layers. This approach allows the enzymes to be positioned in their preferred reaction microenvironments and in close proximity to each other on the nanoscale. The interfacial biocatalytic cascades exhibit remarkable catalytic efficiency in alkene epoxidation and thioether oxidation, with a catalytic efficiency 6.9-13.6 times higher than that of free enzymes in solution and their multi-enzymatic counterparts. The enhanced cascading efficiency is attributed to the remarkable interfacial effect of Pickering droplets.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Akihiro Morita, Ai Koizumi, Tomonori Hirano
Summary: Transport of ions through liquid-liquid interfaces is crucial for various applications, and molecular dynamics simulations with proper free energy surfaces can provide new insights into the mechanistic picture of ion transport.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Arixin Bo, Yawei Liu, Bjoern Kuttich, Tobias Kraus, Asaph Widmer-Cooper, Niels de Jonge
Summary: Self-assembly of nanoscale structures at liquid-solid interfaces plays a crucial role in industrial processes and natural phenomena. The conventional theory is oversimplified, and in situ observations using liquid-phase scanning transmission electron microscopy are required. It has been found that modifying the molecular coating of the substrate can control the self-assembly structures of nanoparticles.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Analytical
Yamin Ma, Cheng Liu, Lishi Wang
Summary: A strategy for fast analysis of ion transfer/facilitated ion transfer in femtoliter water-in-oil droplets has been established. The study demonstrates that the half-wave potential is directly related to the transfer Gibbs free energy and logarithmic concentration of ions. The behavior of protamine transfer inside a single droplet has been thoroughly investigated, revealing significant differences under different conditions.
ANALYTICAL CHEMISTRY
(2022)
Article
Electrochemistry
Magdalena Kaliszczak, Imane Bamou, Marina Garcia-Atance, Franca Jones, Damien W. M. Arrigan, Gregoire Herzog
Summary: This study demonstrates the simultaneous measurement of potential and current variations at the interface between two immiscible electrolyte solutions, using tetraalkylammonium cations as a common ion. The experimental setup is used to investigate the interfacial cocrystallisation process of hydrophilic, cationic caffeine with lipophilic 1-hydroxy-2-naphtoic acid.
Article
Electrochemistry
Terence G. Henares, Julian D. Gale, Gregoire Herzog, Damien W. M. Arrigan
Summary: This study investigated the hydrolysis of pyrosulfate using ion-transfer electrochemistry at microinterfaces. The hydrolysis of pyrosulfate to hydrogen sulfate and sulfate was confirmed by pH measurements and Raman spectroscopy. The ion-transfer potential measurement and quantum mechanical calculations supported the experimentally observed trends and provided thermodynamic analysis for the reactions of pyrosulfate.
Article
Biochemical Research Methods
Giada Caniglia, Andrea Teuber, Holger Barth, Boris Mizaikoff, Christine Kranz
Summary: This study investigates the relationship between the adhesion properties of polydopamine films and their surface charge density and pH using atomic force microscopy and attenuated total reflection-Fourier transform infrared spectroscopy. The study also explores the impact of polydopamine surface charge density on bacterial adhesion and biofilm formation.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Electrochemistry
Peng Lei, Ying Zhou, Xincheng Sun, Chuan Dong, Yinghe He, Yang Liu, Shaomin Shuang
Summary: In this study, glucose-derived carbon nanospheres were synthesized and used to modify electrodes for dopamine detection. The modified electrode showed better electrochemical sensing performance with a wide linear range and low detection limit. The modified electrode was successfully applied to detect dopamine in human serum samples.
Article
Chemistry, Multidisciplinary
Nikhil Arya, Tom Philipp, Simon Greiner, Michael Steiner, Christine Kranz, Montaha Anjass
Summary: The reversible electrodeposition of molecular vanadium oxide clusters and the formation of thin films are reported. The reversibility is found to be dependent on the reduction potential. The multi-electron reduction of the polyoxovanadate cluster facilitates the reversible formation of potassium vanadium oxide thin films.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
M. Adeel Zafar, Yang Liu, Francisco C. Robles Hernandez, Oomman K. Varghese, Mohan Jacob
Summary: Atmospheric pressure microwave plasma is used for the synthesis of graphene nanosheets using a sustainable precursor called tea tree. The process is performed in a single step at a low microwave power of 200 W. The graphene synthesized shows excellent sensing capability for detecting diuron herbicide, with a linear range of 20 μm to 1 mm and a limit of detection of 5 μm.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Andrea Teuber, Giada Caniglia, Michael Wild, Matthias Godejohann, Christine Kranz, Boris Mizaikoff
Summary: Diamond thin-film waveguides with a nanocrystalline diamond layer were used to detect the IR signature of caffeine in the mid-infrared regime. The morphological properties of the waveguides were characterized using AFM and SEM, and theoretical simulations confirmed the feasibility of using a larger sensing area compared to strip waveguides. A comparative analysis confirmed the performance of the diamond thin-film-waveguide-based sensing system, indicating its potential for various applications.
Review
Chemistry, Physical
Andreas Hellmann, Annika Schundner, Manfred Frick, Christine Kranz
Summary: ATP is a widely distributed extracellular signaling molecule that regulates various physiological and pathological processes through purinergic receptor activation. Accurate measurement of ATP release is crucial for understanding transmission mechanisms, requiring direct, sensitive, non-invasive detection with high spatial and temporal resolution. This opinion article summarizes recent research on ATP detection using electrochemical methods and provides examples of how in vitro electrochemical ATP measurements contribute to insights in purinergic signaling, specifically in alveolar homeostasis and ATP's role as a major excitatory neurotransmitter in the central nervous system.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Peng Lei, Ying Zhou, Chuan Dong, Yang Liu, Shaomin Shuang
Summary: This paper discusses the design of a nanocomposite with electrocatalytic activity and recyclable development for the detection of small biomolecules and the removal of environmental pollutants. A magnetic nanocomposite was synthesized using the hydrothermal method, combining metal-organic frameworks and graphene. The nanocomposite was used to construct an electrochemical sensing platform for glucose detection and organic dye removal.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Analytical
Andrea Teuber, Giada Caniglia, Holger Barth, Christine Kranz, Boris Mizaikoff
Summary: Bacterial sensing based on quantum cascade laser spectroscopy coupled with diamond or gallium arsenide thin-film waveguides is a novel approach for obtaining high-resolution infrared spectroscopic information of bacteria. In this study, Escherichia coli was used as an example, and the laser spectroscopy was compared to conventional Fourier transform infrared spectroscopy. The proliferation behavior of E. coli on the surfaces was also investigated using atomic force microscopy and scanning electron microscopy.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Fatemehsadat Rahide, Krishnaveni Palanisamy, Jackson K. Flowers, Junjie Hao, Helge S. Stein, Christine Kranz, Helmut Ehrenberg, Sonia Dsoke
Summary: The naturally occurring amorphous Al2O3 film on an Al substrate poses a challenge for the performance of rechargeable Al batteries. This insulating Al oxide slows down electrode activation and hinders Al plating/stripping. The two sides of Al foils have different surface properties, with the non-shiny side having higher roughness and greater concentration of active sites. Various immersion pretreatments can modify the surface properties and create an interphase layer rich in Al, Cl, and N.
Review
Chemistry, Physical
Hum Bahadur Lamichhane, Damien W. M. Arrigan
Summary: This review discusses the electroanalytical detection of PFAS, focusing on approaches such as molecularly imprinted polymers, metal-organic frameworks, interfacial processes, and ion-transfer events. While significant progress has been made in the electroanalytical chemistry of PFAS, further research is needed to improve and establish methods for detecting extremely low concentrations, distinguishing individual PFAS in mixtures, and detecting individual PFAS in various matrix conditions.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Electrochemistry
Noha Sabi, Krishnaveni Palanisamy, Fatemehsadat Rahide, Sven Daboss, Christine Kranz, Sonia Dsoke
Summary: Investigated the impact of aluminum foil surface properties on the electrochemical behavior in aluminum battery half-cells. The purity, hardness and thickness of commercial aluminum foils influence the battery performance, with the 0.075 mm thickness showing the best cycling stability.
BATTERIES & SUPERCAPS
(2023)
Article
Electrochemistry
Krishnaveni Palanisamy, Sven Daboss, David Schaefer, Marcus Rohnke, Laurin Derr, Marcel Lang, Rolf Schuster, Christine Kranz
Summary: This study presents a cost-effective spray-coating process for the preparation of HC composite electrodes for sodium-ion batteries. The spray-coated anodes showed improved performance compared to doctor bladed anodes, indicating the potential of this method for practical applications.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Analytical
Andrea Teuber, Giada Caniglia, Christine Kranz, Boris Mizaikoff
Summary: Diamond thin-film waveguides combined with quantum cascade lasers augmented by drop-casted graphene enable surface-enhanced infrared absorption spectroscopy, enhancing the signal for analytical scenarios with small sample volumes and low analyte concentration levels.