Plasma treatment induced wetting transitions on biological tissue (pigeon feathers)

Edward Bormashenko; Roman Grynyov

doi:10.1016/j.colsurfb.2011.11.053

Plasma treatment induced wetting transitions on biological tissue (pigeon feathers)

Edward Bormashenko, Roman Grynyov

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

We report first the wetting transition from superhydrophobicity to superhydrophilicity observed on nitrogen and air plasma irradiated biological tissue (pigeon feathers). Non-irradiated feathers demonstrate pronounced Cassie-Baxter (" fakir" ) wetting characterized by high apparent contact angles and low sliding angles. Plasma-irradiated feathers are superhydrophilic. Plasma treatment does not affect the barbs/barbules keratin-built network constituting pigeon pennae, but it changes the Young, advancing and receding angles of the tissue. The mechanism of wetting transition is discussed.

Original language	English
Pages (from-to)	367-371
Number of pages	5
Journal	Colloids and Surfaces B: Biointerfaces
Volume	92
DOIs	https://doi.org/10.1016/j.colsurfb.2011.11.053
State	Published - 1 Apr 2012

Keywords

Air and nitrogen plasma
Contact angle
Keratin
Pigeon feather
Wetting properties
Wetting transition

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10.1016/j.colsurfb.2011.11.053

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abstract = "We report first the wetting transition from superhydrophobicity to superhydrophilicity observed on nitrogen and air plasma irradiated biological tissue (pigeon feathers). Non-irradiated feathers demonstrate pronounced Cassie-Baxter ({"} fakir{"} ) wetting characterized by high apparent contact angles and low sliding angles. Plasma-irradiated feathers are superhydrophilic. Plasma treatment does not affect the barbs/barbules keratin-built network constituting pigeon pennae, but it changes the Young, advancing and receding angles of the tissue. The mechanism of wetting transition is discussed.",

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N2 - We report first the wetting transition from superhydrophobicity to superhydrophilicity observed on nitrogen and air plasma irradiated biological tissue (pigeon feathers). Non-irradiated feathers demonstrate pronounced Cassie-Baxter (" fakir" ) wetting characterized by high apparent contact angles and low sliding angles. Plasma-irradiated feathers are superhydrophilic. Plasma treatment does not affect the barbs/barbules keratin-built network constituting pigeon pennae, but it changes the Young, advancing and receding angles of the tissue. The mechanism of wetting transition is discussed.

AB - We report first the wetting transition from superhydrophobicity to superhydrophilicity observed on nitrogen and air plasma irradiated biological tissue (pigeon feathers). Non-irradiated feathers demonstrate pronounced Cassie-Baxter (" fakir" ) wetting characterized by high apparent contact angles and low sliding angles. Plasma-irradiated feathers are superhydrophilic. Plasma treatment does not affect the barbs/barbules keratin-built network constituting pigeon pennae, but it changes the Young, advancing and receding angles of the tissue. The mechanism of wetting transition is discussed.

KW - Air and nitrogen plasma

KW - Contact angle

KW - Keratin

KW - Pigeon feather

KW - Wetting properties

KW - Wetting transition

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JO - Colloids and Surfaces B: Biointerfaces

JF - Colloids and Surfaces B: Biointerfaces

ER -

Plasma treatment induced wetting transitions on biological tissue (pigeon feathers)

Abstract

Keywords

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