Enzyme mediated site-specific surface modification

Stable tethering of bioactive peptides like RGD to surfaces can be achieved via chemical bonding, biotin streptavidin interaction, or photocross-linking. More challenging is the immobilization of proteins, since methods applied to immobilize peptides are either not specific or versatile enough or mi...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 26(2010), 13 vom: 06. Juli, Seite 11127-34
1. Verfasser: Sala, Ana (VerfasserIn)
Weitere Verfasser: Ehrbar, Martin, Trentin, Diana, Schoenmakers, Ronald G, Vörös, Janos, Weber, Franz E
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Hydrogels Peptides Polymers Polyethylene Glycols 3WJQ0SDW1A Factor XIIIa EC 2.3.2.13 Transglutaminases
Beschreibung
Zusammenfassung:Stable tethering of bioactive peptides like RGD to surfaces can be achieved via chemical bonding, biotin streptavidin interaction, or photocross-linking. More challenging is the immobilization of proteins, since methods applied to immobilize peptides are either not specific or versatile enough or might even compromise the protein's bioactivity. To overcome this limitation, we have employed a scheme that by enzymatic (transglutaminase) reaction allows the site-directed and site-specific coupling of growth factors and other molecules to nonfouling poly(L-lysine)-graft-poly(ethylene glycol) (PLL-g-PEG) coated surfaces under physiological conditions. By our modular and flexible design principle, we are able to functionalize these surfaces directly with peptides and growth factors or precisely position poly(ethylene glycol) (PEG)-like hydrogels for the presentation of growth factors as exemplified with vascular endothelial growth factor (VEGF)
Beschreibung:Date Completed 30.09.2010
Date Revised 01.12.2018
published: Print
Citation Status MEDLINE
ISSN:1520-5827
DOI:10.1021/la1008895