Integrated microtransducers and microelectronics for environmental monitoring

Current research on a microsystem for the remote analysis of rainwater is presented. This project combines work in low-power microelectronics, microfabrication, electroanalytical chemistry, and environmental science to produce a system that analyzes the temporal and spatial dispersion of pollution. These analyses can lead to verification of environmental models and improved environmental health. The system incorporates voltammetric and potentiometric electroanalytical sensors, and microelectronic instrumentation. The entire system can be fabricated on a single substrate using standard CMOS processing for the instrumentation and post-CMOS processing of the sensors. Results from a two-chip model of the system match theory and demonstrate that the system is a viable solution for the remote monitoring of precipitation.