Mobile and Wireless Autofluorescence Detection Systems and Their Application for Skin Tissues

Area of Science:

• Biomedical Optics
• Optical Sensing Technologies
• Noninvasive Diagnostics

Background:

• Skin autofluorescence (SAF) is a valuable biomarker for disease detection and treatment monitoring.
• Weak autofluorescence signals and tissue optical properties challenge accurate detection.
• Existing systems are often bulky, limiting practical applications.

Purpose of the Study:

• To develop a compact, mobile, and wireless system for skin tissue autofluorescence detection.
• To improve the signal-to-noise ratio (SNR) for enhanced detection accuracy.
• To create a user-friendly device for assessing skin aging and diabetic complications.

Main Methods:

• Utilized a compact LED light source for excitation and a CMOS sensor for detection.
• Integrated a single-chip microcontroller and simple power supply for system operation.
• Incorporated a pressure sensor to ensure consistent contact and improve signal stability.

Main Results:

• Achieved high signal-to-noise ratio (SNR) skin autofluorescence detection.
• Demonstrated a detection time of less than 0.1 seconds.
• Developed a compact, user-friendly, and wireless detection system.

Conclusions:

• The developed system offers a noninvasive, convenient, and cost-effective approach for SAF detection.
• The system's stability and accuracy are enhanced by integrated pressure sensing.
• This technology shows significant potential for clinical applications in skin aging and diabetic risk assessment.