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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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 CreatorsORCiD
Khandelwal, MudrikaUNSPECIFIED
Sharma, Chandra ShekharUNSPECIFIED
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://raiith.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/
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