Film Structure-Induced Resonant Oscillation Changes in a Poly Acrylic Acid Modified Quartz Crystal Sensor

Kim, Woo Sik (author)

Park, Jin Young (author)

Kim, Seung Jin (author)

Chang, Sang Mok (author)

Kim, In Ho (author)

Kim, Jong Min (author)

(creator_code:org_t)

Informa UK Limited, 2008
2008
English.
In: Molecular Crystals and Liquid Crystals. - : Informa UK Limited. - 1542-1406 .- 1563-5287. ; 492, s. 221-228

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

A poly acrylic acid (PAA) film has been fabricated on a quartz crystal microbalance to study the dynamic property changes induced by different pH values. The experiment has been performed by a two-step. First, using the self-assembly procedure, the gold surface of quartz crystal was chemically modified to allow the graft copolymerization with PAA. Secondly, the resonant frequency response of the PAA-modified QCM was investigated by varying the pH values. The result shows an interesting oscillation property change nearby pH 5.5, and a possible mechanism for the change is proposed considering the oscillation properties of quartz crystal and the physical properties of PAA. Finally, a polymer film complex of PAA/collagen was also used to confirm the proposed mechanism.

By the author/editor: Kim, Woo Sik; Park, Jin Young; Kim, Seung Jin; Chang, Sang Mok; Kim, In Ho; Hilborn, Jöns; show more...; Kim, Jong Min; show less...

About the subject

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