Fabrication of bio-inspired hydrophobic self-assembled electrospun nanofiber based hierarchical structures

M Kakunuri; M Khandelwal; CS Sharma; SJ Eichhorn

doi:10.1016/j.matlet.2017.03.094

Fabrication of bio-inspired hydrophobic self-assembled electrospun nanofiber based hierarchical structures

M Kakunuri, M Khandelwal, CS Sharma, SJ Eichhorn

Research output: Contribution to journal › Article (Academic Journal) › peer-review

13 Citations (Scopus)

Abstract

© 2017 Elsevier B.V. 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 by 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.

Original language	Undefined/Unknown
Pages (from-to)	339-342
Number of pages	4
Journal	Materials Letters
Volume	196
DOIs	https://doi.org/10.1016/j.matlet.2017.03.094
Publication status	Published - 1 Jun 2017

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title = "Fabrication of bio-inspired hydrophobic self-assembled electrospun nanofiber based hierarchical structures",

abstract = "{\textcopyright} 2017 Elsevier B.V. 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 by 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.",

author = "M Kakunuri and M Khandelwal and CS Sharma and SJ Eichhorn",

year = "2017",

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doi = "10.1016/j.matlet.2017.03.094",

language = "Undefined/Unknown",

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journal = "Materials Letters",

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TY - JOUR

T1 - Fabrication of bio-inspired hydrophobic self-assembled electrospun nanofiber based hierarchical structures

AU - Kakunuri, M

AU - Khandelwal, M

AU - Sharma, CS

AU - Eichhorn, SJ

PY - 2017/6/1

Y1 - 2017/6/1

N2 - © 2017 Elsevier B.V. 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 by 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.

AB - © 2017 Elsevier B.V. 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 by 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.

U2 - 10.1016/j.matlet.2017.03.094

DO - 10.1016/j.matlet.2017.03.094

M3 - Article (Academic Journal)

SN - 0167-577X

VL - 196

SP - 339

EP - 342

JO - Materials Letters

JF - Materials Letters

ER -