Capacitive Sensor to Monitor Enzyme Activity by Following Degradation of Macromolecules in Real Time

Autor: Gizem Ertürk Bergdahl, Bo Mattiasson, Martin Hedström
Rok vydání: 2019
Předmět:
Zdroj: Applied Biochemistry and Biotechnology
ISSN: 1559-0291
0273-2289
DOI: 10.1007/s12010-019-03006-0
Popis: A capacitive sensor was developed to analyze the presence and enzymatic activity of a model protease from standard solutions by following the degradation of the substrate in real time. The enzyme was chosen based on its specific digestion of the hinge region of immunoglobulin G (IgG). Real-time enzyme activity was monitored by measuring the change in capacitance (∆C) based on the release of IgG fragments after enzymatic digestion by the enzyme. The results indicated that the developed capacitive system might be used successfully for label-free and real-time monitoring of enzymatic activity of different enzymes in a sensitive, rapid, and inexpensive manner in biotechnological, environmental, and clinical applications. Electronic supplementary material The online version of this article (10.1007/s12010-019-03006-0) contains supplementary material, which is available to authorized users.
Databáze: OpenAIRE