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- W2045355328 abstract "Assessing the medical condition of battlefield personnel requires the development of rapid, portable biological diagnostic assays for a wide variety of antigens and enzymes. Ideally, such an assay would be inexpensive, small, and require no added reagents while maintaining the sensitivity and accuracy of laboratory-based assays. In this work, a microelectromechanical (MEMS) based biological assay sensor is presented which is expected to meet the above requirements. The sensor is a thin silicon membrane resonator (SMR) which registers a decrease in resonant frequency when mass is adsorbed onto its surface. By coating the sensor surface with a monolayer of antibody, for example, we have detected the corresponding antigen with a detection resolution of 0.25 ng/ml in phosphate buffer solution. Micromachining techniques are being used to integrate many (64 elements on the first test chip) identical SMR sensors into a single silicon chip which would be capable of simultaneously performing a wide variety of biomedical assays. The sensors require only a small printed circuit board and 8V power supply to operate and provide a readout. The presentation will describe the operation of the SMR sensor, the fabrication of the sensor array, and initial test results using commercially available animal immunoglobulins in laboratory-prepared test solutions." @default.
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- W2045355328 date "1999-07-13" @default.
- W2045355328 modified "2023-10-16" @default.
- W2045355328 title "<title>Miniature silicon electronic biological assay chip and applications for rapid battlefield diagnostics</title>" @default.
- W2045355328 doi "https://doi.org/10.1117/12.353020" @default.
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