نتایج جستجو برای: electrospinning

تعداد نتایج: 3963  

2014
Jian Liu Wan Shou Lei Zhang Wei Liang Dong-Wei Huang Yong Liu

Crater-like electrospinning is a novel and cost-effective method for the mass scale production of nanofibers. The gas channel in the polymer solution plays a key role to produce a bubble Taylor cone or a crater-like Taylor cone, which is the key to eject the thin fluid jets (finally solidified into nanofibers) in electrospinning process. However, the formation mechanism of gas channel of crater...

2012
Amparo Lopez-Rubio Marysol Aceituno-Medina Sandra Mendoza

Amaranth protein isolate (API) ultrathin structures have been developed using the electrospinning technique. The effects of pH, type of solvent and surfactant addition on the spinnability, morphology and molecular organization of the obtained structures have been studied. Regarding the effect of pH on API electrospinning, capsule morphologies were only obtained at extreme pH values (i.e. pH 2 a...

Journal: :Chemical communications 2008
Keiichi Yoshimatsu Lei Ye Patrik Stenlund Ioannis S Chronakis

A simple electrospinning method is developed to introduce signal transduction ability into molecularly imprinted nanofibers.

Journal: :international journal of occupational hygiene 0
somayeh farhang dehghan department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran farideh golbaaei department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran bozorgmehr maddah department of chemistry, imam hossein university, tehran, iran rasoul yarahmadi department of occupational health, school of public health, iran university of medical sciences, tehran, iran asghar sedigh zadeh nuclear fusion research center, atomic energy organization, tehran, iran

original article   electrospun nanofibrous filter media have attracted considerable attention in the last decade. the present study aimed to develop the electrospun pan (polyacrylonitrile) filter media through experimental investigations for application in high-performance air filters. for this purpose, an experimental design was proposed to assess the effect of electrospinning process conditio...

Journal: :international journal of nano dimension 0
elaheh esmaeili department of chemical engineering, birjand university of technology, birjand, p.o. box 97175/569-212, iran. fatemeh deymeh department of chemical engineering, birjand university of technology, birjand, p.o. box 97175/569-212, iran. seyyed amin rounaghi department of materials engineering, birjand university of technology, birjand, p.o. box 97175/569-295, iran.

recently, the demands for the production of many different types of plastic wastes are greatly growing that subsequently, lead to the serious challenges in environmental considerations. since, these materials are rarely resolved by microorganisms, hence, their recycling to the useful materials is crucial. in the present study, we used a solution electrospinning technique to synthesize nano/micr...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
yadolah ganjkhanlou abdolmajid bayandori moghaddam samanesadat hosseini tayebe nazari akbar gazmeh

in this work, cofe2o4 nanoparticles have been prepared by co-precipitation technique. the synthesized cofe2o4 nanoparticles were applied in the preparation of cofe2o4/polyacrylonitrile fiber nanocomposites by the electrospinning process. the prepared nanoparticles and nanofibers were characterized using the scanning electron microscopy (sem) and x-ray diffraction methods. the results manifested...

Journal: :علوم و تکنولوژی پلیمر 0
مهسا رستملو مهدی نوری جواد مختاری

nanofber  mats  of  poly(ε-caprolactone)/nanoclay  nanocomposites  were fabricated by electrospinning. the effects of the solution concentration and  the  nanoclay  content  of  nanocomposite  materials  on  the  fnal nanofber  structure were  investigated. morphology  and  diameter  of  the  nanofbers were studied using optical and scanning electron microscope. it was observed that the  poly(ε...

Journal: :nanomedicine journal 0
amir doustgani biotechnology group, chemical engineering department, tarbiat modares university, tehran, iranسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university) ebrahim vasheghani-farahani biotechnology group, chemical engineering department, tarbiat modares university, tehran, iranسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university) masoud soleimani department of hematology, faculty of medicine, tarbiat modares university, tehran, iranسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university)

aligned and random nanocomposite nanofibrous scaffolds were electrospun from polycaprolactone (pcl), poly (vinyl alcohol) (pva) and hydroxyapatite nanoparticles (nha). the morphology and mechanical characteristics of the nanofibers were evaluated using scanning electron microscopy and tensile testing, respectively. scanning electron microscopy revealed fibers with an average diameter of 123 ± 3...

Journal: :Journal of Applied Polymer Science 2005

Journal: :Sen'i Gakkaishi 2008

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