Tohoku Univ. Technology : Biophotoacoustic spectroscopy system : T21-342
Noninvasive method for measuring blood sugar level without blood sampling
Although invasive methods involving blood sampling are the mainstream methods for blood glucose measurement in diabetic patients, it is desirable to develop non-invasive methods that do not cause physical pain or risk of infection from the puncture site. As one of the non-invasive measurement methods, a method using a microphone to detect acoustic waves generated when a measurement object is irradiated with light has been proposed. However, the above method has a problem that it is easily affected by environmental sounds and water vapor generated from living organisms. This invention is a method for measuring blood glucose levels by a transducer method using a piezoelectric element to detect ultrasonic waves generated when a measurement object is irradiated with mid-infrared light. The advantage of the transducer method is that it is not easily affected by environmental sounds and water vapor, which are problems in the microphone method. Furthermore, the photoacoustic cell used in the microphone method is not required, allowing for a simpler system configuration. It is expected that this invention makes it possible to measure blood glucose levels simply and non-invasively.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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