Fabrication of Bio-inspired Hydrophobic Self-Assembled Electrospun Nanofiber Based Hierarchical Structures

Kakunuri, M and Khandelwal, Mudrika and Sharma, Chandra Shekhar and Eichhorn, S J (2017) Fabrication of Bio-inspired Hydrophobic Self-Assembled Electrospun Nanofiber Based Hierarchical Structures. Materials Letters, 196. pp. 339-342. ISSN 0167-577X

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Abstract

In this letter, we present a facile approach to fabricate hydrophobic surfaces based on electrostatic field assisted self-assembly of fibers onto conductive micropillars. Hydrophobic patterns fabricated in this work are inspired from an underwater fern Salvinia molesta. Hydrophilic cellulose acetate nanofibers were electrospun on a conducting micro-patterned surface to create a hierarchical structure. The water contact angle increased from just below 70° (hydrophilic) on the micro-patterned structures to ∼140° (hydrophobic) for the hierarchical structures. Introduced hydrophobicity is due to the pinning of the water droplet to suspended hydrophilic nanofibers and a reduced solid-water interface.

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IITH Creators:	IITH Creators ORCiD Khandelwal, Mudrika UNSPECIFIED Sharma, Chandra Shekhar UNSPECIFIED
Item Type:	Article
Uncontrolled Keywords:	Self-assembly; Biomimetic; Interfaces; Hydrophobicity; Hierarchical structures; Salvinia
Subjects:	Materials Engineering > Materials engineering Chemical Engineering > Biochemical Engineering
Divisions:	Department of Chemical Engineering Department of Material Science Engineering
Depositing User:	Team Library
Date Deposited:	27 Mar 2017 06:16
Last Modified:	20 Sep 2017 11:19
URI:	http://raiithold.iith.ac.in/id/eprint/3112
Publisher URL:	https://doi.org/10.1016/j.matlet.2017.03.094
OA policy:	http://www.sherpa.ac.uk/romeo/issn/0167-577X/
Related URLs:	Google Scholar

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