| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
In order to measure the glucose concentration in a capillary bed based on photoacoustic spectroscopy, the techniques of separating unnecessary signal components generated from water and discriminating unnecessary signal components generated from the epidermis are required. The method of irradiating with the excitation light according to the absorption wavelength of water simultaneously with observation light was proposed to suppress the signal component originating in water. It was shown clearly that observation light intensity changes with irradiation of excitation light about 1% per 1% of glucose concentration. Therefore, a possibility that the water signal component in an observation signal could be estimated by irradiation of excitation light was indicated. In addition, it was confirmed that the glucose distribution of the depth about 5 mm from the surface could be identified by irradiating with the modulated observation light.
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