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An Inductive-capacitive Sensor For Real-time Biofilm Growth Monitoring

Ekaterina Tolstaya, RISE Fellow, Research, Fall 2013 – Spring 2014. An Inductive-capacitive Sensor For Real-time Biofilm Growth Monitoring. 1).

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An Inductive-capacitive Sensor For Real-time Biofilm Growth Monitoring

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  1. Ekaterina Tolstaya, RISE Fellow, Research, Fall 2013 – Spring 2014 An Inductive-capacitive Sensor For Real-time Biofilm Growth Monitoring 1) Biofilms cause antibiotic-resistant infections, and one common source of such infections are catheters. Real time sensing and early detection of biofilm infections would facilitate treatment. The sensor consists of a microfabricated gold spiral (Figure 1), which acts as both a capacitor and inductor in parallel. Preliminary work shows that, as biofilm grows on the sensor (Figure 2), the capacitance of the sensor decreases, and the resonance frequency of the system increases. The resonance frequency is measured over time to monitor biofilm growth. The current stage of the project validates the use of the sensing technique. The overall goal of the project is the development of a flexible, wireless sensor to be placed inside of a catheter. 1 cm 2)

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