NDLI: Detection of synthetic RGDS(PO$_{3}$H$_{2}$)PA peptide adsorption using a titanium surface plasmon resonance biosensor

Content Provider	Springer Nature Link
Author	Abe, Yasuhiko Hiasa, Kyou Hirata, Isao Okazaki, Yohei gami, Keisuke Mizumachi, Wataru Yoshida, Yasuhiro Suzuki, Kazuomi Okazaki, Masayuki Akagawa, Yasumasa
Copyright Year	2010
Abstract	The purpose of this study was to measure the time-dependent chemical interaction between synthetic RGDS(PO$_{3}$H$_{2}$)PA (P-RGD) peptide and titanium surfaces using a titanium surface plasmon resonance (SPR) biosensor and to determine the degree of peptide immobilization on the surfaces. An SPR instrument for ‘single-spot’ analysis was used for nanometer-scale detection of biomolecular adsorption using a He–Ne laser light according to Knoll’s method. The oxidized titanium surface was etched when exposed to H$_{3}$PO$_{4}$ solutions with a pH of 2.0 or below. The amount of P-RGD adsorbed at pH 1.9 was approximately 3.6 times as much as that at pH 3.0 (P < 0.05). P-RGD naturally adsorbed on the oxidized titanium surface as a consequence of the bonding and dissociation mechanism of the phosphate functional group. Furthermore, the control of pH played a very important role in the interaction between P-RGD and the surface. These findings show that pH control may promote progressive binding of biomolecules with the phosphate functional group to the titanium surface.
Starting Page	657
Ending Page	661
Page Count	5
File Format	PDF
ISSN	09574530
Journal	Journal of Materials Science: Materials in Medicine
Volume Number	22
Issue Number	3
e-ISSN	15734838
Language	English
Publisher	Springer US
Publisher Date	2011-01-08
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Surfaces and Interfaces, Thin Films Characterization and Evaluation of Materials Metallic Materials Polymer Sciences Biomaterials Ceramics, Glass, Composites, Natural Methods
Content Type	Text
Resource Type	Article
Subject	Biomaterials Biophysics Bioengineering Biomedical Engineering

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