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Elastic Superhydrophobic and Photocatalytic Active Films Used as Blood Repellent Dressing
Author(s) -
Liu Jie,
Ye Lijun,
Sun Yuling,
Hu Minghan,
Chen Fei,
Wegner Seraphine,
Mailänder Volker,
Steffen Werner,
Kappl Michael,
Butt HansJürgen
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201908008
Subject(s) - materials science , photocatalysis , titanium dioxide , coating , composite material , hemostasis , wound dressing , composite number , biocompatible material , elasticity (physics) , nanotechnology , biomedical engineering , catalysis , organic chemistry , medicine , chemistry
Durable and biocompatible superhydrophobic surfaces are of significant potential use in biomedical applications. Here, a nonfluorinated, elastic, superhydrophobic film that can be used for medical wound dressings to enhance their hemostasis function is introduced. The film is formed by titanium dioxide nanoparticles, which are chemically crosslinked in a poly(dimethylsiloxane) (PDMS) matrix. The PDMS crosslinks result in large strain elasticity of the film, so that it conforms to deformations of the substrate. The photocatalytic activity of the titanium dioxide provides surfaces with both self‐cleaning and antibacterial properties. Facile coating of conventional wound dressings is demonstrated with this composite film and then resulting improvement for hemostasis. High gas permeability and water repellency of the film will provide additional benefit for medical applications.