Affiliations: [a] Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, IA 52242, USA | [b] Department of Electrical and Computer Engineering, Department of Physics and Astronomy, The University of Iowa, Iowa City, IA 52242, USA
Correspondence:
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Corresponding author: Professor David R. Andersen, Department of Electrical and Computer Engineering, Department of Physics and Astronomy, The University of Iowa, Iowa City, IA 52242, USA. Tel.: +319 335 2529; Fax: +319 353 1115; E-mail: [email protected].
Abstract: The design and development of a data acquisition unit for an implantable multi-channel optical glucose sensor is described. The sensing technology involves sampling of the interstitial fluid in a micro-fabricated chamber and measurement of the absorbance of the fluid in a non-destructive and reagent free manner. The glucose levels are estimated based on the absorbance data. This new technology relies on the unique optical characteristics of glucose in the near infrared spectrum. The sensor element is intended for implantation in the subcutaneous tissues of the human body. The data acquisition unit acquires optical data from the sensor and converts it into spectral data for processing. This new technology will be used as the sensing technology in a feedback controlled insulin delivery system for the in situ treatment of diabetes.
Keywords: Transmission spectrum, data acquisition, optical glucose sensor
