Effect of solvent evaporation on diameter and deposition of nanofibrous scaffold in electrospinning

YU Yong-ze; LIU Yuan-yuan; CHEN Wei-hua; HU Qing-xi

doi:10.3788/OPE.20142202.0420

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Effect of solvent evaporation on diameter and deposition of nanofibrous scaffold in electrospinning

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Effect of solvent evaporation on diameter and deposition of nanofibrous scaffold in electrospinning
- Optics and Precision Engineering Vol. 22, Issue 2, Pages: 420-425(2014)
- 作者机构：
  
  上海大学快速制造工程中心上海,200444
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142202.0420
  CLC： TH162.1;TQ340.6
- Received：20 September 2013，
  
  Published：20 February 2014
- 稿件说明：
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于永泽,刘媛媛*,陈伟华等. 溶剂挥发对静电纺丝纳米纤维支架直径与沉积的影响[J]. 光学精密工程, 2014,22(2): 420-425

YU Yong-ze, LIU Yuan-yuan, CHEN Wei-hua etc. Effect of solvent evaporation on diameter and deposition of nanofibrous scaffold in electrospinning[J]. Editorial Office of Optics and Precision Engineering, 2014,22(2): 420-425
于永泽,刘媛媛*,陈伟华等. 溶剂挥发对静电纺丝纳米纤维支架直径与沉积的影响[J]. 光学精密工程, 2014,22(2): 420-425 DOI： 10.3788/OPE.20142202.0420.

YU Yong-ze, LIU Yuan-yuan, CHEN Wei-hua etc. Effect of solvent evaporation on diameter and deposition of nanofibrous scaffold in electrospinning[J]. Editorial Office of Optics and Precision Engineering, 2014,22(2): 420-425 DOI： 10.3788/OPE.20142202.0420.

摘要

为实现静电纺丝纳米纤维生物支架的可控制备

实验研究了不同溶剂挥发速度对聚己酸内酯(Polycaprolactone

PCL)纳米纤维直径和纤维沉积面积的影响。首先

使用挥发速度不同的溶剂分别配制相同浓度的PCL纺丝溶液

在外加电压为15 kV

纤维接收距离为12 cm的条件下进行静电纺丝;然后

利用钨灯丝扫描电镜测量所制备的纳米纤维直径和沉积面积

并使用最小二乘法拟合计算实验数据

推导出溶剂挥发速度与纤维直径和纤维沉积面积的比例关系。结果表明

随着溶剂挥发速度的增加

纳米纤维的平均直径从98 nm(标准偏差为21.14 nm)上升到205 nm(标准偏差为38.83 nm)

溶剂挥发速度与纤维直径的比例关系为:

d∝N

0.25

;纤维的沉积面积从143 cm

下降到35 cm

溶剂挥发速度与纤维沉积面积的比例关系为:

S∝N

-0.18

。实验结果和建立的比例关系式能够为纳米纤维生物支架的可控制备提供可靠的数据基础和理论指导。

Abstract

To achieve the controllable manufacturing of electrospun nanofibrous scaffolds

the effects of evaporation rates of different solvents on the fiber diameters and deposition configurations of electrospun nanofibers were investigated experimentally. Firstly

polycaprolactone (PCL) was respectively dissolved in various solvents with different evaporation rates and the electrospun was performed under applied voltage of 15 kV and a receiving distance of 12 cm. Then

the diameters and deposited areas of nanofibers were measured by a scanning electron microscopy. Furthermore

relational expressions between the average diameter and the solvent evaporation rate

the deposited area and the solvent evaporation rate were established by using least square method. The results show that the average diameter of nanofibers increases from 98 nm( with the standard deviation 21.14 nm) to 205 nm (with the standard deviation 38.83 nm) and the deposited areas of electrospun nanofiber webs decrease from 143 cm

to 35 cm

with increasing solvent evaporation rates. The mean diameter of nanofiners has a proportion relation with solvent evaporation rate of

d∝N

0.25

and the relation of evaporation rate and deposition area is

S∝N

-0.18

. The experimental results and relational expressions can offer the valuable information for guiding the controllable manufacturing of electrospun nanofibrous scaffolds.

关键词

Keywords

references

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