نتایج جستجو برای: nano bio composite

تعداد نتایج: 226751  

In this work the synthesis of polyaniline/chitosan/functionalized single- walled carbon nanotube nanocomposite is carried out. For this purpose single -walled carbon nanotubes were reacted with thionyl chloride to change the hydroxyl to acyl chloride groups for improving the react ability. In other step, aniline monomers and chitosan were polymerized in the presence of Iron (III) chloride to sy...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
wang liyong han yuanyuan ding shiwen

ticl4, ammonia, inorganic salts as raw material, nanometer composite-crystal tio2 powders were synthesized by two-step chemical method. precursors were crystallized with different phase and stable composite-crystal tio2 with anatase and rutile phase was prepared at low temperature. quantitative control of crystal phase was realized. remarkable factors including reaction ph value, reaction time,...

2016
M. Santana J. O. Estevez V. Agarwal R. Herrera-Becerra

Porous silicon (PS) substrates, with different pore sizes and morphology, have been used to crystallize hydroxyapatite (HA) nano-fibers by an easy and economical procedure using a co-precipitation method at room temperature. In situ formation of HA nanoparticles, within the meso- and macroporous silicon structure, resulted in the formation of nanometer-sized hydroxyapatite crystals on/within th...

Journal: :nanochemistry research 1999
mostafa karimkoshteh marziyeh bagheri behzad zeynizadeha

various aldoximes and ketoximes synthesis of corresponding aldehydes and ketones in the presence of sio2@feso4 nano composite as recoverable nano catalyst and nh2oh·hcl. the sio2@feso4 nano composite system was carried out between 10 to 15 min in oil bath (70-80 °c) under solvent-free condition in excellent yields in addition this protocol can be used for industrial scales. this method offers s...

In this work the synthesis of polyaniline/chitosan/functionalized single- walled carbon nanotube nanocomposite is carried out. For this purpose single -walled carbon nanotubes were reacted with thionyl chloride to change the hydroxyl to acyl chloride groups for improving the react ability. In other step, aniline monomers and chitosan were polymerized in the presence of Iron (III) chloride to sy...

2006
Ajay Ummat Constantinos Mavroidis

This paper discusses about the relevance of detecting space radiations which are very harmful and pose numerous health issues for astronauts. There are many ways to detect radiations, but we present a non-invasive way of detecting them in real-time while an astronaut is in the mission. All Terrain Bio-nano (ATB) gear system is one such concept where we propose to detect various levels of space ...

Journal: :Nano letters 2013
Yunhua Xu Qing Liu Yujie Zhu Yihang Liu Alex Langrock Michael R Zachariah Chunsheng Wang

Nano-Sn/C composites are ideal anode materials for high energy and power density Li-ion batteries. However, because of the low melting point of Sn and the tendency of grain growth, especially during high temperature carbonization, it has been a significant challenge to create well-dispersed ultrasmall Sn nanoparticles within a carbon matrix. In this paper, we demonstrate an aerosol spray pyroly...

Journal: :The Journal of The Institute of Electrical Engineers of Japan 2005

Journal: :Open Schools Journal for Open Science 2020

Journal: :Journal of The Mechanical Behavior of Biomedical Materials 2021

The present study deals with (i) the fabrication of composite surface layer Ti–29Nb–13Ta-4.6Zr/nano-fluorapatite through friction stir processing, (ii) clarifying correlation microstructure and texture in-vitro degradation behavior bioactivity fabricated nano-biocomposite, (iii) comparing mechanical functional properties nano whit those obtained for TNTZ bio-alloy. results indicated that increa...

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