Surface-Restructuring Differences between Polyrotaxanes and Random Copolymers in Aqueous Environment

In the present study, we investigated the surface reorganization behaviors and adsorption conformations of fibrinogen on the surface of polyrotaxanes containing different amounts of α-cyclodextrin (α-CD) by using surface-sensitive vibrational spectroscopy sum frequency generation (SFG). For comparis...

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Veröffentlicht in:Langmuir 2018-10, Vol.34 (41), p.12463-12470
Hauptverfasser: Ge, Aimin, Qiao, Lin, Seo, Ji-Hun, Yui, Nobuhiko, Ye, Shen
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container_issue 41
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container_title Langmuir
container_volume 34
creator Ge, Aimin
Qiao, Lin
Seo, Ji-Hun
Yui, Nobuhiko
Ye, Shen
description In the present study, we investigated the surface reorganization behaviors and adsorption conformations of fibrinogen on the surface of polyrotaxanes containing different amounts of α-cyclodextrin (α-CD) by using surface-sensitive vibrational spectroscopy sum frequency generation (SFG). For comparison, behaviors of the surface restructuring and fibrinogen adsorption on the random copolymers containing similar terminal groups were also investigated. It was found that larger amounts of BMA moieties of polyrotaxanes form ordered surface structures after immersion in water for 48 h. Furthermore, the polyrotaxane surfaces exhibit a much higher capability of fibrinogen adsorption than the random copolymer surfaces. The water-induced surface restructuring of the polyrotaxane films slightly affects the adsorption structure of the fibrinogen molecules.
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title Surface-Restructuring Differences between Polyrotaxanes and Random Copolymers in Aqueous Environment
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