Immobilization of biomolecules on Langmuir-Blodgett films of regenerative cellulose derivatives

Loescher, F. and Ruckstuhl, T. and Jaworek, T. and Wegner, G. and Seeger, Stefan (1998) Immobilization of biomolecules on Langmuir-Blodgett films of regenerative cellulose derivatives. LANGMUIR, 14 (10). pp. 2786-2789. ISSN 0743-7463,

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Abstract

We present a new and fast method for preparation of ultrathin layers of biomolecules on solid substrates and its application as a useful tool for sensing biomolecules in an affinity biosensor. Nonamphiphilic trimethylsilyl ether-cellulose monolayers are used as interfaces to reduce nonspecific interactions between solid surfaces and biomolecules. These films are transferred on optical waveguides by the Langmuir-Blodgett technique. After their stabilization by cleavage of the hydrophobic trimehylsilyl groups, the cellulose films serve as excellent matrixes for the immobilization of proteins at high density. Cyanurchloride serves as a cross-linker between the cellulose layer and the proteins. The activity and biological specificity of these interfaces is controlled by an enzymatic assay and direct sensing by an evanescent wave immunosensor.

Item Type: Article
Uncontrolled Keywords: ULTRATHIN FILMS;
Subjects: 500 Science > 570 Life sciences
Divisions: Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik
Depositing User: Dr. Gernot Deinzer
Date Deposited: 23 May 2023 09:54
Last Modified: 23 May 2023 09:54
URI: https://pred.uni-regensburg.de/id/eprint/49811

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