نتایج جستجو برای: carbon microspheres

تعداد نتایج: 292203  

2017
Kewei Dai Fenghe Wang Wei Jiang Yajun Chen Jing Mao Jian Bao

Novel reusable magnetic carbon microspheres (MCMs) were prepared by hydrothermal method with glucose as carbon source and Fe3O4 nanoparticles as magnetic raw materials. And adsorption performance of MCMs for sulfonamide removal from water was investigated in detail. The results indicated that the calcination temperature and calcination time had significant effects on the surface area and its vo...

2014
J. S. Dua A. C. Rana A. K. Bhandari

In the study we formulated the serratiopeptidase loaded cholic acid conjugated and unconjugated chitosan mucoadhesive microspheres. It was observed that the conjugated microspheres show better permeation rate than unconjugated microspheres. Moreover the permeation enhancer increased the % cumulative drug permeation through the mucosal membrane from 69.37 % to 74.39 % for unconjugated microspher...

2015
M. Sevilla C. Sanchís T. Valdés-Solís E. Morallón A. B. Fuertes

Highly graphitic carbon nanocoils (GCNC) were synthesized through the catalytic graphitization of carbon microspheres obtained by the hydrothermal carbonization of different saccharides (sucrose, glucose and starch) and were used as a support for Pt nanoparticles. The Pt nanoparticles were deposited by means of a polymer mediatedpolyol method. The Pt catalysts were characterized both physically...

2006
Raman Ganesan Jae Sung Lee

Tungsten trioxide microspheres of 2–4 m diameter have been prepared by controlled oxidation of tungsten carbide microspheres. These microspheres are characterized by XRD, SEM, and HRTEM. The microspheres are made of WO3 nanoparticles with an average diameter of around 15 nm. Platinum supported on these WO3 microspheres exhibits higher and stable electrocatalytic activity for methanol oxidation ...

Journal: :iranian journal of pharmaceutical sciences 0
hanieh nojehdehyan faculty of biomedical engineering, amir kabir university, tehran, iran fatollah moztarzadeh faculty of biomedical engineering, amir kabir university, tehran, iran narges zare mehrjerdi department of stem cells, royan institute, tehran, iran hossein baharvand department of stem cells, royan institute, tehran, iran

the cellular therapy and nerve tissue engineering will probably become a major therapeutic strategy for promoting axonal growth through injured area in central nervous system and peripheral nervous system in the coming years. the stem cell carrier scaffolds in nerve tissue engineering resulted in strong survival of cells and suitable differentiation into neural cells, so this pathway should be ...

Journal: :Small 2023

Electrocatalytic Oxygen Reduction In article number 2207991, Cheng-Yan Xu and co-workers develop a self-sacrificing strategy to encapsulate single-atom Fe-N4O1 species into carbon hollow spheres assembled by ultrathin nanosheets Fe1–N–C microspheres (Fe1/N-HCMs). Such highly open architecture is supposed be an ideal platform isolate fully expose single metal atoms. Benifiting from the abundant ...

2011
Qin Wang Jie Wu Wenbo Wang Aiqin Wang

A series of chitosan/attapulgite (CTS/APT) hybrid microspheres were prepared by a facile spray-drying technique. The developed hybrid microspheres were characterized by Fourier transform infrared spectra (FTIR), X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and the zeta potential. The encapsulation efficiency and in vitro controlled release properties of the microspheres fo...

2005
Nicole Weaver

One of the key advantages to a lab-on-a-chip system based on digital microfluidics is the reconfigurability and reusability of the same chip for different tasks. The ability to manipulate magnetic microspheres in solution on a lab-on-a-chip will expand the variety of tasks that can be performed if the microspheres are used as reagent immobilization surfaces. Because the microspheres can be tran...

Journal: :Acta pharmaceutica 2007
Anthony Amaechi Attama Obichukwu J Nwabunze

An investigation into the suitability of mucuna gum microspheres for oral delivery of glibenclamide is presented. Mucuna gum microspheres were formulated under different conditions of polymer concentration and crosslinking time at constant speed. The formulated microspheres were thereafter loaded with glibenclamide by the remote loading process. The microspheres were evaluated according to part...

2016
Dawei Li Jun Zang Jin Zhang Kelong Ao Qingqing Wang Quanfeng Dong Qufu Wei

Carbon xerogel-zinc oxide (CXZnO) composites were synthesized by a simple method of sol-gel condensation polymerization of formaldehyde and resorcinol solution containing zinc salt followed by drying and thermal treatment. ZnO nanoparticles were observed to be evenly dispersed on the surfaces of the carbon xerogel microspheres. The as-prepared CXZnO composites were mixed with laccase (Lac) and ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید