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Argon–water DBD pretreatment and vapor‐phase silanization of silica: Comparison with wet‐chemical processes
, Klages Claus‐Peter, Raev Vitaly, Murugan Divagar
Published in Wiley
Volume: 17
Issue: 7

A dielectric-barrier discharge (DBD) in an argon–water mixture is applied to plasma pretreatment (PP) of amorphous silica for subsequent vapor-phase silanization (VS) in the same reactor. Comparison of amino-silanization of silica fiber-optic biosensor probes using a PP/VS sequence with strategies involving wet-chemical pretreatment or silanization shows a considerable improvement in reproducibility by the completely dry process. Practical applicability is demonstrated by an immunoassay with human immunoglobulin G as analyte. Thanks to the advantages of shorter processing time, avoidance of washing steps, and improved reproducibility, PP/VS is highly promising for industrial use.

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PublisherData powered by TypesetWiley
Open AccessNo