نتایج جستجو برای: electrospinning

تعداد نتایج: 3963  

2012
G. Zanatta D. Steffens D.I. Braghirolli R.A. Fernandes C.A. Netto P. Pranke

Tissue engineering is a technique by which a live tissue can be re-constructed and one of its main goals is to associate cells with biomaterials. Electrospinning is a technique that facilitates the production of nanofibers and is commonly used to develop fibrous scaffolds to be used in tissue engineering. In the present study, a different approach for cell incorporation into fibrous scaffolds w...

2005
G. A. Montero J. M. Gluck

Electrospinning or electrostatic fiber spinning is an emerging technology that requires electric fields for the formation of non-woven materials that can be used in clothing, highperformance filters, separation membranes, scaffolds in tissue engineering, reinforcement in composite materials, templates for the preparation of functional nanotubes, and many others applications [1]. Polycaprolacton...

2013
Zeng Jun Haoqing Hou Joachim H. Wendorff Andreas Greiner

Poly(vinyl alcohol) (PVA) nanofibres were obtained by electrospinning of PVA/water solutions. Formation of beaded fibres combined with decreased fibre diameters was observed for low PVA concentrations. Electrospinning of blends of PVA of different molecular weight resulted in less bead formation and smaller fibre diameters as compared to corresponding homopolymers of similar viscosity.

Journal: :Chemical communications 2013
Jony Saha Goutam De

Cubic (Im3[combining macron]m) mesoporous silica nanofibers were successfully prepared using a new F127-PVA-SiO2 tri-constituent assembly approach by the electrospinning technique. PVA was used to protect the F127 directed cubic micelles which usually deform during electrospinning. The preformed Au NPs can be loaded inside the mesopores of the nanofibers.

Journal: Journal of Nanoanalysis 2019
abolfazl mozaffari, Masoud Parsania Mazeyar Gashti Mohammad Jalili

Electrospinning has been recognized as an efficient technique for the fabrication of polymernanofibers. Recently, various polymers have successfully been electrospun into ultrafine fibers.Electrospinning is an extremely promising method for the preparation of tissue engineering scaffolds.In this study, nanofibers gelatin was electrospun at 20% v/v optimized content. To produce...

2012
Fatma YENER Oldrich JIRSAK

Effect of nonsolvent in the polymer (polyvinyl butyral) solution in ethanol on the electrospinning performance and nanofiber properties was investigated. Water as the nonsolvent was added in various amounts to the polymer solution. Addition of water did influence neither surface tension nor conductivity of polymer solution significantly. On the other hand, it increased its viscosity. The perfor...

2009
Wan-Yu Wu Jyh-Ming Ting Po-Jung Huang

ZnO nanowires were produced using an electrospinning method and used in gas sensors for the detection of ethanol at 220 °C. This electrospinning technique allows the direct placement of ZnO nanowires during their synthesis to bridge the sensor electrodes. An excellent sensitivity of nearly 90% was obtained at a low ethanol concentration of 10 ppm, and the rest obtained at higher ethanol concent...

Journal: :jundishapur journal of natural pharmaceutical products 0
abbas akhgari targeted drug delivery research center, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran abdolmaohammad ghalambor dezfuli physics department, shahid chamran university, ahvaz, ir iran mohammadebrahim rezaei physics department, shahid chamran university, ahvaz, ir iran mohammad kiarsi nanotechnology research center, school of pharmacy, ahvaz jundishapur university of medical sciences, ahvaz, ir iran mohammadreza abbaspour targeted drug delivery research center, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran; targeted drug delivery research center, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran. tel/fax: +98-5138823251

results the results showed that the fiber diameter and the amount of loratadine affected the drug release and the disappearance time of nanofibers. the smaller the fiber diameter and drug amount, the faster the solubility and the release time of nanofibers. conclusions it was concluded that electrospinning can be a suitable method for preparing fast-dissolving loratadine nanofibers. materials a...

Journal: :nanomedicine research journal 0
safieh boroumand department of medical nanotechnology, school of advanced technology in medicine, tehran university of medical science, tehran, iran sara hosseini department of biotechnology, school of advanced technologies in medicine, shahid beheshti university of medical sciences, tehran, iran mohhamad salehi department of biotechnology, school of advanced technologies in medicine, shahid beheshti university of medical sciences, tehran, iran reza faridi majidi department of medical nanotechnology, school of advanced technology in medicine, tehran university of medical science, tehran, iran

objectives: postsurgical adhesion is one of the common complications after surgery. some anti-adhesion barriers are commercially available which are not customary used by physicians as much as expected because of ineffectiveness. recently, nanofibers have been introduced as anti-adhesion barriers with the potential of drug delivery. in the light of role of inflammation and oxidative stress in a...

Journal: :Nanomedicine : nanotechnology, biology, and medicine 2012
Dhan B Khadka Donald T Haynie

UNLABELLED Electrospun fibers are being studied and developed because they hold considerable promise for realizing some advantages of nanostructured materials. The fibers can be made of biocompatible and biodegradable polymers. Electrospinning has therefore attracted interest in biotechnology and medicine, and there has been rapid growth in this area in recent years. This review presents an int...

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