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As part of applications dealing with cardiovascular tissue engineering, drop-cast polyvinylidene fluoride (PVDF) scaffolds have been treated by cold plasma to enhance their adherence to cardiac cells. The scaffolds were treated in a…

Hydrogen radical attacks and subsequent hydrogen migrations are considered to play an important role in the atomic-scale mechanisms of diamond chemical vapour deposition growth. We perform a comprehensive analysis of the reactions involving…

The use of eco-friendly materials for the environment has been addressed as a critical issue in the development of systems for renewable energy applications. In this regard, the investigation of organic photovoltaic (OPV) molecules for the…

Chemical Physics · Physics 2017-01-13 Alfredo Guillén-López , Miguel Robles , Jesús Muñiz

The reaction between atomic oxygen and molecular hydrogen is an important one in astrochemistry as it regulates the abundance of the hydroxyl radical and serves to open the chemistry of oxygen in diverse astronomical environments. However,…

Astrophysics of Galaxies · Physics 2021-04-21 A. Veselinova , M. Agundez , J. R. Goicoechea , M. Menendez , A. Zanchet , E. Verdasco , P. G. Jambrina , F. J. Aoiz

Mineralization of bone and teeth involves interactions between biomolecules and hydroxyapatite. Associated complex interfaces and processes remain difficult to analyze at the 1 to 100 nm scale using current laboratory techniques, and prior…

Materials Science · Physics 2015-12-02 Tzu-Jen , Hendrik Heinz

Covalent Organic Frameworks (COFs) are versatile two-dimensional (2D) materials for flexible electronics, catalysis, and sensing, owing to their tunable architectures and large surface areas. However, like most materials, COFs inevitably…

By molecular dynamics simulation, the chemical vapor deposition of amorphous carbon onto graphite and diamond surfaces was studied. In particular, we investigated the effect of source H/C ratio, which is the ratio of the number of hydrogen…

Materials Science · Physics 2015-05-19 Atsushi M. Ito , Arimichi Takayama , Seiki Saito , Noriyasu Ohno , Shin Kajita , Hiroaki Nakamura

In the automotive industry, multi-element wings have been used to improve the aerodynamics of race cars. Multi-element wings can enhance a vehicle's handling and stability by reducing drag and increasing downforce, allowing it to corner…

Fluid Dynamics · Physics 2023-11-09 Paras Singh , Arun Ravindranath , Aryan Tyagi , Aryaman Rao , Raj Kumar Singh

Porosity is a key parameter on thermal barrier coatings, directly influencing thermal conductivity and strain tolerance. Suspension high velocity oxy-fuel (SHVOF) thermal spraying enables the use of sub-micron particles as feedstock,…

Applied Physics · Physics 2022-01-03 Daniel Tejero-Martin , Mingwen Bai , Jitendra Mata , Tanvir Hussain

We introduce an adhesion parameter that enables rapid screening for materials interfaces with high adhesion. This parameter is obtained by density functional theory calculations of individual single-material slabs rather than slabs…

We present a systematic study of the morphology of homoepitaxial InP films grown by metalorganic vapor-phase epitaxy which are imaged with ex situ atomic force microscopy. These films show a dramatic range of different surface morphologies…

Materials Science · Physics 2012-11-02 A. Gocalinska , M. Manganaro , D. D. VVedensky , E. Pelucchi

NMR is the technique of election to probe the local properties of materials. Herein we present the results of density functional theory (DFT) \textit{ab initio} calculations of the NMR parameters for fluorapatite (FAp), a calcium…

Materials Science · Physics 2012-07-27 Barbara Pavan , Davide Ceresoli , Mary M. J. Tecklenburg , Marco Fornari

Many efforts have been dedicated to improve the solar steam generation by using a bi-layer structure. In this paper, a two-dimensional mathematical model describing the water evaporation in a bi-layer structure is firstly established and…

Applied Physics · Physics 2018-08-07 Jinxin Zhong , Congliang Huang , Dongxu Wu , Zizhen Lin

Photocatalytic and photovoltaic activity depends on the optimal alignment of electronic levels at the molecule/semiconductor interface. Establishing level alignment experimentally is complicated by the uncertain chemical identity of the…

Materials Science · Physics 2013-08-27 Annapaola Migani , Duncan J. Mowbray , Amilcare Iacomino , Jin Zhao , Hrvoje Petek , Angel Rubio

W-O deposits with complex morphologies and significant He contents will growth on the surface of plasma facing components exposed to He discharges. To mimic the re/co-deposition process, W-O-He coatings were produced by implanting He+ ions…

Applied Physics · Physics 2018-12-18 R. Mateus , D. Dellasega , M. Passoni , Z. Siketić , I. Bogdanović Radović , A. Hakola , E. Alves

Bone structure is generally hierarchically organized into organic (collagen, proteins,...), inorganic (hydroxyapatite (HAP)) components. However, many fundamental mechanisms of the biomineralization processes such as HAP formation, the…

The behavior of proteins near interfaces is relevant for biological and medical purposes. Previous results in bulk show that, when the protein concentration increases, the proteins unfold and, at higher concentrations, aggregate. Here, we…

Soft Condensed Matter · Physics 2021-01-19 David March , Valentino Bianco , Giancarlo Franzese

After the efficiency of organic photovoltaic (OPV) cells achieved more than 10%, the control of stability and degradation mechanisms of solar cells became a prominent task. The improvement of device efficiency due to incorporation of a…

Damages are created in a sacrificial layer of silicon dioxide by ion implantation to enhance the etch rate of silicon-dioxide in liquid and vapor phase hydrofluoric acid. The etch rate ratio between implanted and unimplanted silicon dioxide…

We show that the HF acid etch commonly used to prepare SrTiO3(001) for heteroepitaxial growth of complex oxides results in a non-negligible level of F doping within the terminal surface layer of TiO2. Using a combination of x-ray…

Materials Science · Physics 2015-05-30 Scott A. Chambers , Timothy C. Droubay , Cigdem Capan , Guangyuan Sun