A Series Piezoelectric Quartz Crystal Sensor

Haiyan Duan; Jing Zhao; Wanzhi Wei

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A Series Piezoelectric Quartz Crystal Sensor

Haiyan Duan,Jing Zhao,Wanzhi Wei *

State key Laboratory of chemo./Biosensing and chemometrics, Hunan University

*Correspondence author

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Funding: 教育部博士点基金（No.20060532006）

Opened online:24 December 2009

Accepted by: none

Citation: Haiyan Duan,Jing Zhao,Wanzhi Wei.A Series Piezoelectric Quartz Crystal Sensor[OL]. [24 December 2009] http://en.paper.edu.cn/en_releasepaper/content/38018

A novel monitoring technique series piezoelectric quartz crystal (SPQC) sensing technique is used to monitor conductivity in unfolding and refolding processes of lysozyme in real time. The lysozyme is unfolded by sodium dodecylbenzene sulfonate (SDBS) and then refolded by cetyltrimethylammonium bromide (CTAB). During the unfolding and refolding process, the conductivity of the solution changed accordingly. The change in conductivity caused a sensitive response of the SPQC sensor. The obtained experimental results indicate that the SPQC sensing technique would be a useful and convenient tool for monitoring the interaction between ionic surfactants and protein.

Keywords:Lysozyme;sodium dodecylbenzene sulfonate;cetyltrimethylammonium bromide;series piezoelectric quartz crystal (SPQC)

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