Absorption Properties of Microgel-PVP Composite Nanofibers Made by Electrospinning

被引：16

作者：

Esteban Diaz, Juan ^{[3
]}

Barrero, Antonio ^{[4
]}

Marquez, Manuel ^{[5
]}

Fernandez-Nieves, Alberto ^{[1
,2
]}

Loscertales, Ignacio G. ^{[1
,2
]}

机构：

[1] Univ Malaga, Escuela Ingn, E-29071 Malaga, Spain

[2] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

[3] Yflow SL, Malaga 29590, Spain

[4] Univ Seville, Escuela Super Ingenieros, Seville 41092, Spain

[5] Arizona State Univ, Harrington Dept Bioengn, Tempe, AZ 85287 USA

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2010年 / 31卷 / 02期

关键词：

absorption; electrospinning; fibers; microgels; stimuli-sensitive polymers; DRUG-DELIVERY; N-ISOPROPYLACRYLAMIDE; POLYMERIC NANOFIBERS; DIAMETER FIBERS; ENCAPSULATION; POLY(N-ISOPROPYLACRYLAMIDE); PARTICLES; HYDROGELS; CORE; TRANSITION;

D O I：

10.1002/marc.200900534

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The absorption and desorption of water, as well as the retention of certain molecules within a polymeric network, have special interest in a wide range of applications, including drug delivery, biosensing, chemical separation, catalysis, and optics. In this communication, we report the encapsulation by electrospinning of poly(N-isopropylacrylamide)-based monodisperse microgels within microfibers of crosslinked poly(vinylpyrrolidone), which is a hydrogel itself, up to concentrations of 40 wt.-% of the microgels. We present an optical characterization of these composite microfibers and quantify their absorbance, which can be as large as 17 times their de-swollen weight. Interestingly, this absorbance can be tuned by controlling the values of the temperature and the pH of the medium.

引用

页码：183 / 189

页数：7

共 52 条

[51] Production of submicrometer diameter fibers by two-fluid electrospinning [J].