COMBINED QCM AND ELECTROCHEMICAL IMPEDANCE MEASUREMENTS FOR BIOSENSOR APPLICATIONS

机译：QCM和电化学阻抗的组合测量，用于生物传感器应用

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The reproducible degradation of thin polymer films in the presence of an analyte or a reaction product of an analyte can be utilised to produce highly sensitive transducers for disposable biosensors. This type of transducer has been particular useful for the detection of enzyme concentrations down to 2x10~(-11) mol dm~(-3). The degradation of the films was monitored using various techniques such as capacitance measurements and surface plasmon resonance. A novel combination of Quartz Crystal Microbalance (QCM) and electrochemical impedance spectroscopy has been developed to monitor the degradation of thin polymer films in the presence of enzymes. The experimental setup allows real time monitoring of quartz crystal impedance spectra and classical ac impedance spectra providing a wealth of information about the polymer enzyme interactions and the mechanism of polymer degradation. The degradation of poly(ester amide) in the presence of α-chymotrypsin was investigated as a model system.

机译：在存在分析物或分析物的反应产物的情况下，聚合物薄膜的可再现降解可以用于生产用于一次性生物传感器的高灵敏度传感器。这种类型的传感器对于检测低至2x10〜（-11）mol dm〜（-3）的酶浓度特别有用。使用诸如电容测量和表面等离振子共振的各种技术来监测膜的降解。已经开发了石英晶体微天平（QCM）和电化学阻抗谱的新型组合，以监测存在酶时聚合物薄膜的降解。实验设置允许实时监测石英晶体的阻抗谱和经典的交流阻抗谱，从而提供了有关聚合物酶相互作用和聚合物降解机理的大量信息。作为模型系统，研究了在α-胰凝乳蛋白酶存在下聚（酯酰胺）的降解。

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《International Symposium on Chemical and Biological Sensors and Analytical Methods II, 2001》|2001年|p.98-108|共11页
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作者
Andrea Sabot; Claire Sumner; Steffi Krause;
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University of Sheffield Department of Chemistry, Sheffield S3 7HF;

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原文格式 PDF
正文语种 eng
中图分类自动化技术、计算机技术;
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1. Rapid impedance scanning QCM for electrochemical applications based on miniaturized hardware and high-performance curve fitting [J] . F. Wudy, M. Multerer, C. Stock, Electrochimica Acta . 2008,第22期

机译：基于微型硬件和高性能曲线拟合的电化学应用快速阻抗扫描QCM
2. Combined quartz crystal impedance and electrochemical impedance measurements during adsorption of bovine serum albumin onto bare and cysteine- or thiophenol-modified gold electrodes [J] . Qingji Xie, Youyu Zhang, Mancai Xu, Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry . 1999,第1a2期

机译：在牛血清白蛋白吸附到裸半胱氨酸或硫代苯酚修饰的金电极上期间，结合石英晶体阻抗和电化学阻抗测量
3. Improved detection limits of toxic biochemical species based on impedance measurements in electrochemical biosensors [J] . Narakathu B.B., Atashbar M.Z., Bejcek B.E. Biosensors & Bioelectronics: The International Journal for the Professional Involved with Research, Technology and Applications of Biosensers and Related Devices . 2010,第2期

机译：基于电化学生物传感器中的阻抗测量，改进了有毒生化物质的检测限
4. COMBINED QCM AND ELECTROCHEMICAL IMPEDANCE MEASUREMENTS FOR BIOSENSOR APPLICATIONS [C] . Andrea Sabot, Claire Sumner, Steffi Krause The Meeting of the Electrochemical Society . 2001

机译：None
5. Electrochemical impedance spectroscopy for biosensor applications. [D] . Wang, Jianbin. 2006

机译：用于生物传感器应用的电化学阻抗谱。
6. Broadband 120 MHz Impedance Quartz Crystal Microbalance (QCM) with Calibrated Resistance and Quantitative Dissipation for Biosensing Measurements at Higher Harmonic Frequencies [O] . Manuel Kasper, Lukas Traxler, Jasmina Salopek, 2016

机译：宽带120 MHz阻抗石英晶体微天平（QCM）具有标定电阻和定量耗散可在较高谐波频率下进行生物传感测量
7. Broadband 120 MHz Impedance Quartz Crystal Microbalance (QCM) with Calibrated Resistance and Quantitative Dissipation for Biosensing Measurements at Higher Harmonic Frequencies [O] . Manuel Kasper, Lukas Traxler, Jasmina Salopek, 2016

机译：宽带120 mHz阻抗石英晶体微天平（QCm），具有校准电阻和定量耗散，用于高谐波频率下的生物传感测量

COMBINED QCM AND ELECTROCHEMICAL IMPEDANCE MEASUREMENTS FOR BIOSENSOR APPLICATIONS

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