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Blood glucose measurement by infrared spectroscopy
H Zeller1, P Novak, R Landgraf
1Institut für Physikalische Medizin, Baden-Baden--West-Germany.
The International Journal of Artificial Organs
|February 1, 1989
Summary
Infrared spectroscopy offers a stable, direct method for blood glucose measurement, crucial for artificial pancreas development. This technique identifies specific glucose absorption bands, enabling accurate monitoring without electrochemical interference.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Spectroscopy
Background:
- Implantable artificial endocrine pancreas development requires stable, long-term blood glucose sensors.
- Electrochemical sensors face limitations in long-term stability and direct glucose molecule response.
Purpose of the Study:
- To investigate infrared spectroscopy for direct, stable blood glucose measurement.
- To identify suitable infrared absorption bands for glucose detection in physiological conditions.
Main Methods:
- Utilized infrared spectroscopy to analyze blood samples under physiological conditions.
- Identified specific glucose absorption bands in the near and middle infrared spectrum.
- Developed methods to compensate for superimposed absorptions from other blood components.
Main Results:
- Five glucose absorption bands were identified: 1040, 1085, 1109, 1160, and 1365 cm⁻¹.
- The 1040 cm⁻¹ band showed minimal overlap with other blood substances.
- Effective compensation methods were found for other bands, including the prominent 1109 cm⁻¹ frequency.
Conclusions:
- Infrared spectroscopy is a viable technology for developing stable, implantable blood glucose sensors.
- Specific absorption bands, with compensation, allow for accurate glucose monitoring.
- Technically feasible infrared glucose sensor designs are presented.