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We have calculated the adsorption energy of carbon monoxide on a monolayer of copper adsorbed on the (111) face of cubic zirconia. We investigate the structural parameters of three phases of bulk zirconia (cubic, tetragonal, and monoclinic)…

Materials Science · Physics 2007-05-23 Eric J. Walter , Steven P. Lewis , Andrew M. Rappe

We determine potentials of the mean force for interactions of amino acids with four common surfaces of ZnO in aqueous solutions. The method involves all-atom molecular dynamics simulations combined with the umbrella sampling technique. The…

Biomolecules · Quantitative Biology 2014-06-02 Grzegorz Nawrocki , Marek Cieplak

Protein adsorption/desorption upon nanoparticle surfaces is an important process to understand for developing new nanotechnology involving biomaterials, while atomistic picture of the process and its coupling with protein conformational…

Biological Physics · Physics 2017-11-10 Huifang Xiao , Bin Huang , Ge Yao , Wenbin Kang , Sheng Gong , Hai Pan , Yi Cao , Jun Wang , Jian Zhang , Wei Wang

Adsorption in nanoporous materials is one strategy that can be used to store hydrogen at conditions of temperature and pressure that are economically viable. Adsorption capacity of nanoporous materials depends on surface area which can be…

Materials Science · Physics 2024-05-28 Siddharth Gautam , David R. Cole , Zoltán Imre Dudás , Indu Dhiman

The contribution of electrostatic interactions to the free energy of binding between model protein and a ceramic implant surface in the aqueous solvent, considered in the framework of the non-local electrostatic model, is calculated as a…

Biological Physics · Physics 2014-07-29 A. I. Rubinstein , R. F. Sabirianov , F. Namavar

Under the most common experimental conditions, the adsorption of proteins to solid surfaces is an spontaneous process that leads to a rather compact layer of randomly oriented molecules. Due to the importance of this process for the…

Soft Condensed Matter · Physics 2022-06-29 Sergio A. Urzúa , Perla Y. Sauceda-Oloño , Carlos D. García , Christopher D. Cooper

In nanoparticle haloing, charged nanoparticles have been found to enhance the stability of colloidal suspensions by forming a non-adsorbing layer surrounding neutral colloids which induces an electrostatic repulsion between them. However,…

Soft Condensed Matter · Physics 2019-12-18 Marzieh Moradi , Qingwen He , Gerold A. Willing

Accurate quantification of protein-nanoparticle interactions is essential for applications in nanobiotechnology, nanomedicine, and drug delivery. Motivated by recent computational and experimental work, we combine coarse-grained united-atom…

In hafnia-based thin-film ferroelectric devices, chemical phenomena during growth and processing such as oxygen vacancy formation and interfacial reactions appear to strongly affect device performance. However, the nanoscale structure,…

We report that protein confinement within nanoscopic vesicular compartments corresponds to a liquid-liquid phase transition with the protein/water within vesicle lumen interacting very differently than in bulk. We show this effect leads to…

The interaction of hydrogen and metals continues to be industrially relevant and is a critical part of creating and supporting a safety case for nuclear reactor operation. In the present work, we explore hydrogen storage and hydride…

Materials Science · Physics 2021-09-24 Wenjun Lu , Paraskevas Kontis , Siyang Wang , Ruth Birch , Mark Wenman , Baptiste Gault , T. Ben Britton

Protein folding is one of the age-old biological problems that refers to the mechanism of understanding and predicting how a protein's linear sequence of amino acids folds into its specific three dimensional structure.This structure is…

The infrared range optical absorption mechanism of Carbon-Copper composite thin layer coated on the Diamond-Like Carbon (DLC) buffer layer has been investigated. By consideration of weak interactions between copper nanoparticles in their…

Reducing the coefficient of boundary friction on steel surfaces is one of key technologies to improve the efficiency of machines such as automotive engines. It has been shown that the boundary friction on nanostructured steel surfaces in…

Chemical Physics · Physics 2021-02-03 Ivan Lobzenko , Yoshinori Shiihara , Yoshitaka Umeno , Yoshikazu Todaka

The adsorption of a collagen fragment on both a hydrophobic, hydrogen-terminated and a hydrophilic, natively oxidised Si surface is investigated using all-atom molecular dynamics. While favourable direct protein-surface interactions via…

Soft Condensed Matter · Physics 2019-03-27 Daniel J. Cole , Mike C. Payne , Lucio Colombi Ciacchi

Metal-oxide interfaces with poor coherency have unique properties comparing to the bulk materials and offer broad applications in the fields of heterogeneous catalysis, battery, and electronics. However, current understanding of the…

Materials Science · Physics 2024-03-01 Yao Zhang , Zezhou Li , Xing Tong , Zhiheng Xie , Siwei Huang , Yue-E Zhang , Hai-Bo Ke , Wei-Hua Wang , Jihan Zhou

We present a first-principles computational study of non-polar ZnO (10$\bar{1}$0) surfaces doped with indium. The calculations were performed using a model ZnO slab. The position of the In dopants was varied from deep bulk-like layers to…

Materials Science · Physics 2019-05-22 R. Saniz , N. Sarmadian , B. Partoens , M. Batuk , J. Hadermann , A. Marikutsa , M. Rumyantseva , A. Gaskov , D. Lamoen

Simulations have acted as a cornerstone to understand MOF/polymer interface structure, however, no molecular-level simulation has yet been performed at the nanoparticle scale. In this work, a hybrid MARTINI/Force Matching (FM) force field…

Chemical Physics · Physics 2024-10-22 Cecilia M. S. Alvares , Rocio Semino

The electronic structure, chemical bonding and interface component in ZrN-AlN nanocomposites formed by phase separation during thin film deposition of metastable Zr1-xAlxN (x=0.0, 0.12, 0.26, 0.40) is investigated by resonant inelastic…

Materials Science · Physics 2020-03-19 Martin Magnuson , Weine Olovsson , Naureen Ghafoor , Magnus Odén , Lars Hultman

Once the magnesium alloy was implanted in the body, it was immediately covered with plasma proteins. The coated alloy surface promoted the adsorption and growth of osteoblasts. Herein, in vitro biological reactions of the ZK60 and AZ31…

Biological Physics · Physics 2022-07-26 Xian Wei , Jiajia Menga , Sujie Ma , Yanchun Li , Hong Qing , Xubiao Peng , Bo Zhang , Qing Zhao
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