کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7866054 | 1509130 | 2018 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication and investigation of silica nanofibers via electrospinning
ترجمه فارسی عنوان
ساخت و بررسی نانوسیم سیلیکا از طریق الکتروفیزینگ
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
چکیده انگلیسی
Electrospinning is a versatile and cost-effective method for fabricating nanofibers of different materials suitable for various applications. In this work, silica nanofibers have produced using the electrospinning method followed by the heat treatment. To fabricate silica nanofibers, polyvinylpyrrolidone (PVP), tetraethyl orthosilicate (TEOS) and Butanol were used to prepare the dope solutions. The optimized concentration for polymer in the dope solutions was then measured at 0.1â¯g/ml. The electrospinning process was conducted under the optimum circumstances of voltage, injection flow, tip to collector distance, ambient temperature (25â¯Â°C) and the humidity of 47%. Having conducted the thermal analysis (TG/DTA), electrospun fibers were exposed to thermal analysis in three different temperatures of 500, 700, and 1000â¯Â°C for 5â¯h. Following this, the morphology and the diameter of the fibers, as well as the chemical composition and the crystallinity of each sample were analyzed using scanning electron microscopy (SEM), Fourier transform infrared spectrometer (FT-IR), and x-ray diffractometry (XRD), respectively. The noteworthy conditions of 700â¯Â°C and 5â¯h of heat treatment (i.e., calcination) have provided satisfactory results in terms of silica nanofibers morphology and fibers; diameter, i.e., 110 and 600â¯nm. For cytotoxicity assay, murine fibroblast cells L929 were cultured on a mat of as-spun silica nanofibers. After 24â¯h and 48â¯h cultivation time, samples showed no evidence of cytotoxicity effect, which will be a promising result.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 91, 1 October 2018, Pages 502-511
Journal: Materials Science and Engineering: C - Volume 91, 1 October 2018, Pages 502-511
نویسندگان
Mehran Shahhosseininia, Saeed Bazgir, Morteza Daliri Joupari,