نتایج جستجو برای: nanoporous surface

تعداد نتایج: 639225  

Journal: :Coatings 2023

Nanoporous TiO2 film is deposited on grade 5 Ti6Al4V implant alloy by electrochemical oxidation. The nanopores of the film, as highlighted electron microscopy, have a mean diameter 58.6 nm, which measured and calculated from an average value 10 measurements. increase in oxygen concentration compared to untreated alloy, indicates oxidation titanium surface, visualized using X-ray spectroscopy co...

Journal: :Nanoscale 2014
Min Kyung Lee Jonghwi Lee

Frost, the solid deposition of water vapor from humid air, forms on the surface of a solid substrate when its temperature drops below the freezing point of water. In this study, we demonstrate how this natural phenomenon can be applied to develop novel nanoporous materials. The solvent annealing of polyvinylidene fluoride (PVDF) infiltrated into nanopores induced template-directed dewetting thu...

Journal: :Nanoscale 2012
Jaime Martín Marisol Martín-González

Large area silicon nitride (SiN(x)) nanoporous surfaces are fabricated using poly(ether-ether-ketone) (PEEK) nanorod arrays as a template. The procedure involves manipulation of nanoporous anodic aluminum oxide (AAO) templates in order to form an ordered array of PEEK nanopillars with high temperature resistant characteristics. In this context, self-ordered AAO templates are infiltrated with PE...

2011
Tushar Kumeria Luke Parkinson Dusan Losic

This work presents the use of nanoporous anodic aluminium oxide [AAO] for reflective interferometric sensing of volatile sulphur compounds and hydrogen sulphide [H2S] gas. Detection is based on changes of the interference signal from AAO porous layer as a result of specific adsorption of gas molecules with sulphur functional groups on a gold-coated surface. A nanoporous AAO sensing platform wit...

Journal: :Biomedical Journal of Scientific & Technical Research 2020

Journal: :Langmuir : the ACS journal of surfaces and colloids 2012
Bipin Pandey Prem S Thapa Daniel A Higgins Takashi Ito

This paper reports the formation of self-organized nanoporous gallium oxide by anodization of solid gallium metal. Because of its low melting point (ca. 30 °C), metallic gallium can be shaped into flexible structures, permitting the fabrication of nanoporous anodic oxide monoliths within confined spaces like the inside of a microchannel. Here, solid gallium films prepared on planar substrates w...

Journal: :Nanoscale 2014
Ozge Kurtulus Pallavi Daggumati Erkin Seker

Nanostructured materials have shown significant potential for biomedical applications that require high loading capacity and controlled release of drugs. Nanoporous gold (np-Au), produced by an alloy corrosion process, is a promising novel material that benefits from compatibility with microfabrication, tunable pore morphology, electrical conductivity, well-established gold-thiol conjugate chem...

2016
Lingjun Kong Mingxiang Liu Zenghui Diao Diyun Chen Xiangyang Chang Ya Xiong

Hierarchical nanoporous carbon (NPC) with great surface area and developed pore size distribution has been intently concerned. Herein, we report a facile method coupling template nanocasting and self-activation to fabricate nanoporous carbon with continuous micro, meso and macro pores, in which CaCO3 acted as template and activation reagent while the flour was the carbon precursor. Effects of m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...

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