NDLI: Surface force and vibrational spectroscopic analyses of interfacial water molecules in the vicinity of methoxy-tri(ethylene glycol)-terminated monolayers: mechanisms underlying the effect of lateral packing density on bioinertness.

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Surface force and vibrational spectroscopic analyses of interfacial water molecules in the vicinity of methoxy-tri(ethylene glycol)-terminated monolayers: mechanisms underlying the effect of lateral packing density on bioinertness.

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Surface force and vibrational spectroscopic analyses of interfacial water molecules in the vicinity of methoxy-tri(ethylene glycol)-terminated monolayers: mechanisms underlying the effect of lateral packing density on bioinertness.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Sekine, Taito Asatyas, Syifa Sato, Chikako Morita, Shigeaki Tanaka, Masaru Hayashi, Tomohiro
Description	Country affiliation: Japan Author Affiliation: Sekine T ( a Department of Materials Science and Engineering , Tokyo Institute of Technology , Kanagawa , Japan.); Asatyas S ( a Department of Materials Science and Engineering , Tokyo Institute of Technology , Kanagawa , Japan.); Sato C ( b Department of Biochemical Engineering , Yamagata University , Yamagata , Japan.); Morita S ( c Department of Engineering Science , Osaka Electro-Communication University , Osaka , Japan.); Tanaka M ( b Department of Biochemical Engineering , Yamagata University , Yamagata , Japan.); Hayashi T ( d Institute for Materials Chemistry and Engineering , Kyushu University , Fukuoka , Japan.)
Abstract	Unequivocal dependence of bioinertness of self-assembled monolayers of methoxy-tri(ethylene glycol)-terminated alkanethiol (EG3-OMe SAMs) on their packing density has been a mystery for more than two decades. We tackled this long-standing question by performing surface force and surface-enhanced infrared absorption (SEIRA) spectroscopic measurements. Our surface force measurements revealed a physical barrier of interfacial water in the vicinity of the Au-supported EG3-OMe SAM (low packing density), whereas the Ag-supported one (high packing density) did not possess such interfacial water. In addition, the results of SEIRA measurements clearly exhibited that hydrogen bonding states of the interfacial water differ depending on the substrates. We also characterized the bioinertness of these SAMs by protein adsorption tests and adhesion assays of platelet and human umbilical vein endothelial cells. The hydrogen bonding states of the interfacial water and water-induced interaction clearly correlated with the bioinertness of the SAMs, suggesting that the interfacial water plays an important role determining the interaction of the SAMs with biomolecules and cells.
File Format	HTM / HTML
ISSN	09205063
Journal	Journal of Biomaterials Science, Polymer Edition
e-ISSN	15685624
Language	English
Publisher	Taylor & Francis
Publisher Date	2017-03-06
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Biomedical Engineering
Content Type	Text
Resource Type	Article
Subject	Biomaterials Biophysics Bioengineering Biomedical Engineering

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