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Preparation, Post‐Modification, and Antibacterial Application of Gelatin Electrospun Membranes
Author(s) -
Yu Xi,
Wang Liang,
Yang Pengfei,
Xu Jinku,
Moloney Mark G.,
Liu Lian,
Pan Yunlin,
Wang Yongqing
Publication year - 2018
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.201800093
Subject(s) - gelatin , membrane , chemistry , electrospinning , polymer science , surface modification , polymer chemistry , chemical engineering , chemical modification , chitosan , polymer , organic chemistry , engineering , biochemistry
Two bis(diaryldiazomethane)s substituted with amino groups are synthesized and used for the surface modification of membranes electrospun from gelatin. These membranes are then reacted with tolylene‐2,4‐diisocyanate to give urea‐functionalized materials, so that hydrogen peroxide can be reversibly bound onto their surface. These membranes are characterized by scanning electron microscopy, XPS, differential scanning calorimeter, and tensile test to show their surface properties and bulk properties. The surface modification with amino‐substituted diazomethanes and the subsequent cross‐linking reaction with diisocyanates contribute to high loadings of hydrogen peroxide, and greatly increase the antibacterial activity of gelatin‐derived membranes, which open a new horizon in the preparation of high loading antiseptic/antibacterial biomacromolecular surfaces and interfaces.