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Hydroxyapatite (HAp) is an important component of mammal bones and teeth, being widely used in prosthetic implants. Despite the importance of HAp in medicine, several promising applications involving this material e.g. in photo-catalysis),…

Hydroxyapatite (HAp) is a widely used biomaterial for the preparation of bone and dental implants. Despite the relevance of HAp in medicine, exciting applications involving this material as a bio-compatible photocatalyst, depend on how well…

Materials Science · Physics 2019-03-05 Vladimir S. Bystrov , Leon A. Avakyan , Ekaterina V. Paramonova , José Coutinho

Structural and chemical changes that arise from a fluoridation of synthetic hydroxyapatite in neutral and acidic fluoridation agents are investigated. For synthetic hydroxyapatite (Ca5(PO4)3OH = HAp), the elemental depth profiles were…

A key issue for the fabrication of scaffolds for tissue engineering is the development of processing techniques flexible enough to produce materials with a wide spectrum of solubility (bioresorption rates) and mechanical properties matching…

Applied Physics · Physics 2018-04-09 Julie Russias , Eduardo Saiz , Sylvain Deville , Karol Gryn , G. Liu , Ravi K. Nalla , Antoni P. Tomsia

Using ab-initio calculations within the framework of Density Functional Theory (DFT), atomic structures and electronic properties of MoS2/HfO2 interface are investigated. The impact of interfacial oxygen concentration on the MoS2/HfO2…

Materials Science · Physics 2014-02-10 Santosh KC , Roberto C. Longo , Robert M. Wallace , Kyeongjae Cho

The MoVTeTaO M1 phases were prepared by conventional hydrothermal (HT) and microwave-assisted HT synthesis methods (MW) employing two different Ta precursors, Ta ethoxide and a custom-made Ta oxalate complex. The profile intensity analysis…

Materials Science · Physics 2015-05-11 Jungwon Woo , Albina Borisevich , Qian He , Vadim V. Guliants

One of the challenges in the widespread use of biocomposites for engineering applications is the influence of environmental conditions on their mechanical properties, particularly for a combination of aging factors such as temperature,…

Applied Physics · Physics 2018-08-23 Arnaud Regazzi , Stéphane Corn , Patrick Ienny , Anne Bergeret

This study aims at revealing the effect of composition on mechanical and antibacterial properties of hydroxyapatite/gray Titania coating for biomedical applications. HAp is a bioceramic material used as a plasma-sprayed coating to promote…

Medical Physics · Physics 2021-05-12 Mirazul Mahmud Abir

Hydroxyapatite (HAp) [Ca10(PO4)6(OH)2] nanorods were synthesized using a surfactant templating method, with cetyltrimethylammonium bromide (CTAB) micelles acting as template for HAp growth. The effects of the sintering temperature on the…

Materials Science · Physics 2010-06-01 J. M. Coelho , J. Agostinho Moreira , A. Almeida , F. J. Monteiro

Crystallographic data comes from a space-time average over all the unit cells within the crystal, so dynamic phenomena do not contribute significantly to the diffraction data. Many efforts have been made to reconstitute the movement of the…

Biological Physics · Physics 2021-04-23 Yanis R. Espinosa , H. Ariel Alvarez , Eduardo I. Howard , C. Manuel Carlevaro

Polymer based organic photovoltaic (OPV) technology offers a relatively inexpensive option for solar energy conversion provided its efficiency increases beyond the current level (6-7%) along with significant improvements in operational…

Materials Science · Physics 2015-03-17 Biswajit Ray , Pradeep R. Nair , Muhammad A. Alam

Numerical solutions of high-speed microdroplet impact onto a smooth solid surface are computed, using the interFoam VoF solver of the OpenFOAM CFD package. Toward the solid surface, the liquid microdroplet is moving with an impinging gas…

Fluid Dynamics · Physics 2017-01-31 James Q. Feng

Starch based scaffolds are considered as promising biomaterials for bone tissue engineering. In this study, a highly porous starch/polyvinyl alcohol (PVA) based nanocomposite scaffold with a gradient pore structure was made by incorporating…

Applied Physics · Physics 2018-10-08 Fereshtehsadat Mirab , Mohammadjavad Eslamian , Reza Bagheri

Using a first-principles parameterized lattice-gas Hamiltonian we study the adsorbate ordering behavior at atomic steps of a Pd(100) surface exposed to an oxygen environment. We identify a wide range of gas-phase conditions comprising near…

Materials Science · Physics 2009-11-13 Yongsheng Zhang , Karsten Reuter

In order to protect the skin from UV radiation, personal care products (PCPS) often contain chemical UV-filters. These compounds can enter the environment causing serious consequences on the water ecosystems. The aim of this study was to…

Chemical Physics · Physics 2018-05-11 Waldemar Studziński , Alicja Gackowska , Maciej Przybyłek , Jerzy Gaca

The Hf-O system has been modeled by combining existing experimental data and first-principles calculations results through the CALPHAD approach. Special quasirandom structures of $\alpha$ and $\beta$ hafnium were generated to calculate the…

Materials Science · Physics 2007-09-03 Dongwon Shin , Raymundo Arróyave , Zi-Kui Liu

Under the dual background of deep adjustment of global energy pattern and severe challenges of environmental problems, solid oxide fuel cell (SOFC) has become the focus of research on efficient and clean energy conversion technology due to…

Applied Physics · Physics 2025-11-04 Wang Hao , Xie Jiamiao , Hao Wenqian , Li Jingyang , Zhang Peng , Ma Xiaofan , Liu Fu , Wang Xu

Hydroxyapatite (HAp) is the primary mineral component of various mineralized tissues in the human body, including bone and teeth, where it performs critical roles of structural support and load transmission. In the context of dental health,…

The building climate industry and its influence on energy consumption have consequences on the environment due to the emission of greenhouse gasses. Improving the efficiency of this sector is essential to reduce the effect on climate…

a-Quartz surfaces functionalized with hydroxyl and methyl groups provide a versatile platform for controlling interfacial properties critical to applications such as catalysis, protective coatings, and energy conversion. The arrangement of…

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