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Direct fabrication of spatially patterned or aligned electrospun nanofiber mats on dielectric polymer surfaces

Title
Direct fabrication of spatially patterned or aligned electrospun nanofiber mats on dielectric polymer surfaces
Authors
박상민EOM, SEONG SUCHOI, DONGWHIHAN, SEON JINPark, Sung JeaKIM, DONG SUNG
POSTECH Authors
KIM, DONG SUNG
Date Issued
Mar-2018
Publisher
ELSEVIER SCIENCE SA
Abstract
Spatially patterned or aligned nanofiber mats have attracted broad attention in many applications. Here, we present a direct fabrication technique of spatially controlled nanofiber mats on various dielectric polymers via a selective pattern of electrolyte solution, without the use of a metal collector. A site-selective hydrophilic pattern on a dielectric polymer surface was obtained through plasma surface treatment with an adhesive tape mask, thereby achieving a selective wetting pattern of electrolyte solution on a 2D flat and even 3D curved polymer surface. The electrolyte solution served as a temporal collector during electrospinning, which enabled not only to form spatially patterned or aligned nanofiber mats but also to spontaneously integrate them with the polymer surface by readily removing the electrolyte solution. This process holds great potential in biomedical engineering, exemplified by the creation of nanofiber topography-imposed polymer surfaces to pattern or align the cells on nanofiber mats.
Keywords
EXTRACELLULAR-MATRIX; TIO2 NANOFIBERS; NANOWIRES; MIGRATION; MEMBRANES; DYNAMICS; FIBERS; FILM
URI
http://oasis.postech.ac.kr/handle/2014.oak/38936
DOI
10.1016/j.cej.2017.11.018
ISSN
1385-8947
Article Type
Article
Citation
CHEMICAL ENGINEERING JOURNAL, vol. 335, page. 712 - 719, 2018-03
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 KIM, DONG SUNG
Dept of Mechanical Enginrg
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