Zwitterionic Peptide Enhances Protein-Resistant Performance of Hyaluronic Acid-Modified Surfaces

A convenient and efficient approach for the surface modification of antifouling materials is highly desirable in numerous applications like affinity-based biosensors. Herein, we fabricated a hybrid antifouling coating on Au surfaces, with thiolated hyaluronic acid (HA) being chemically adsorbed to A...

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Publié dans:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 36(2020), 8 vom: 03. März, Seite 1923-1929
Auteur principal: Ye, Huijun (Auteur)
Autres auteurs: Che, Jinjing, Huang, Renliang, Qi, Wei, He, Zhimin, Su, Rongxin
Format: Article en ligne
Langue:English
Publié: 2020
Accès à la collection:Langmuir : the ACS journal of surfaces and colloids
Sujets:Journal Article Research Support, Non-U.S. Gov't Peptides Proteins Hyaluronic Acid 9004-61-9
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520 |a A convenient and efficient approach for the surface modification of antifouling materials is highly desirable in numerous applications like affinity-based biosensors. Herein, we fabricated a hybrid antifouling coating on Au surfaces, with thiolated hyaluronic acid (HA) being chemically adsorbed to Au surfaces by the "graft to" approach, followed by a self-assembly of a smaller zwitterionic peptide named p-EK to obtain HA/p-EK-modified surfaces. The real-time sensorgrams of surface plasmon resonance biosensor manifested the successful modification of HA and p-EK on Au surfaces, indicating that there were some bare Au substrates on the HA-modified surfaces for peptide binding. The obtained HA/p-EK surfaces exhibited high hydrophilicity with a water contact angle of 9°. Quartz crystal microbalance and surface plasmon resonance experiments verified that further grafting the zwitterionic p-EK peptide on HA-modified surfaces could enhance the antifouling performance by one time. The improved protein resistance could be mainly contributed by the modification of the zwitterionic peptide that shields the exposed Au substrates from interacting with protein foulings. This strategy by grafting a smaller zwitterionic peptide might provide a novel way to achieve an enhanced protein-resistant performance of the macromolecular coating obtained by the "graft to" surface modification approach 
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700 1 |a Che, Jinjing  |e verfasserin  |4 aut 
700 1 |a Huang, Renliang  |e verfasserin  |4 aut 
700 1 |a Qi, Wei  |e verfasserin  |4 aut 
700 1 |a He, Zhimin  |e verfasserin  |4 aut 
700 1 |a Su, Rongxin  |e verfasserin  |4 aut 
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