Surface Probe Linker with Tandem Anti-Fouling Properties for Application in Biosensor Technology

Autor: Michael Thompson, Tibor Hianik, Brian De La Franier, Sandro Spagnolo
Rok vydání: 2020
Předmět:
Zdroj: Biosensors
Biosensors, Vol 10, Iss 3, p 20 (2020)
Volume 10
Issue 3
ISSN: 2079-6374
Popis: This paper describes the anti-fouling capability of the novel monolayer-forming surface linker 3-(3-(trichlorosilylpropyloxy) propanoyl chloride (MEG-Cl). This compound was successfully attached to quartz crystal surfaces which are employed in an electromagnetic piezoelectric acoustic sensor (EMPAS) configuration. The MEG-Cl coated surface was both employed with Ni-NTA for the binding of recombinant proteins and for the tandem property of the avoidance of fouling from serum and milk. The MEG-Cl coated surfaces were found to provide a large degree of anti-fouling on the EMPAS device, and were comparable to previously studied MEG-OH surfaces. Importantly, the monolayer continued to provide anti-fouling capability to the biosensor following extension with Ni-NTA in place. Accordingly, this surface linker provides an attractive system for use in biosensor technology in terms of both its anti-fouling and linking properties.
Databáze: OpenAIRE