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In vivo Microscopic Photoacoustic Spectroscopy for Non-Invasive Glucose Monitoring Invulnerable to Skin Secretion
Joo Yong Sim1, Chang-Geun Ahn1, Eun-Ju Jeong1
1Bio-Medical IT Convergence Research Department, Electronics and Telecommunications Research Institute, Daejeon, 34129, Korea.
Scientific Reports
|January 20, 2018
Summary
This study introduces a new method for non-invasive blood glucose monitoring using photoacoustic spectroscopy. By analyzing skin conditions, it enables reliable glucose level prediction, improving accuracy for diabetic care.
Area of Science:
- Biomedical Optics
- Spectroscopy
- Medical Diagnostics
Background:
- Photoacoustic spectroscopy (PAS) shows promise for non-invasive blood glucose monitoring.
- Skin condition variability, influenced by moisture and secretions, affects the repeatability of PAS measurements.
- Infrared excitation light absorption by skin components poses a challenge for accurate glucose detection.
Purpose of the Study:
- To develop a method for reliable non-invasive blood glucose monitoring using mid-infrared photoacoustic spectroscopy.
- To overcome challenges related to skin condition variability in PAS measurements.
- To enable accurate blood glucose level prediction by addressing signal interference.
Main Methods:
- Utilizing microscopic spatial information of the skin during spectroscopy.
- Implementing a raster-scan imaging technique to assess skin inhomogeneities.
- Locally selecting skin regions insensitive to variations in skin condition for signal acquisition.
Main Results:
- Demonstrated significant inhomogeneities and variability in skin conditions within the probing area during in vivo measurements.
- Showcased that selective localization of the probing area reduces the impact of skin secretion products on signal reliability.
- Achieved reliable prediction of blood glucose levels by mitigating the effects of skin condition variability.
Conclusions:
- The developed method enhances the reliability of mid-infrared photoacoustic spectroscopy for non-invasive glucose monitoring.
- Selective localization of probing areas is crucial for overcoming skin condition interference.
- This technology holds potential for continuous glucose monitoring, forensic science, and medical diagnostics.
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