Phosphonic Acid Monolayers for Binding of Bioactive Molecules to Titanium Surfaces

Citation

Adden, Nina; Gamble, Lara J.; Castner, David G.; Hoffmann, Andrea; Gross, Gerhard; & Menzel, Henning (2006). Phosphonic Acid Monolayers for Binding of Bioactive Molecules to Titanium Surfaces. Langmuir, 22(19), 8197-8204.

Abstract

Two different phosphonic acid monolayer films for immobilization of bioactive molecules such as the protein BMP-2 on titanium surfaces have been prepared. Monolayers of (11-hydroxyundecyl)phosphonic acid and (12-carboxydodecyl)phosphonic acid molecules were produced by a simple dipping process (the T-BAG method). The terminal functional groups on these monolayers were activated (carbonyldiimidazole for hydroxyl groups and N-hydroxysuccinimide for carboxyl groups) to bind amine-containing molecules. The reactivity of the surfaces was investigated using trifluoroethylamine hydrochloride and BMP-2. Each step of the surface modification procedure was characterized by X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry.

Reference Type

Journal Article

Secondary Title

Langmuir

Author(s)

Adden, Nina
Gamble, Lara J.
Castner, David G.
Hoffmann, Andrea
Gross, Gerhard
Menzel, Henning

Year Published

2006

Date Published

1157068800

Volume Number

22

Issue Number

19

Pages

8197-8204

DOI

10.1021/la060754c