Millifluidic Nanogenerator Lab-on-a-Chip Device for Blood Electrical Conductivity Monitoring at Low Frequency

Area of Science:

• Biomedical Engineering
• Materials Science
• Analytical Chemistry

Background:

• Electrical conductivity of blood is vital for medical diagnostics.
• Existing methods for conductivity measurement can be complex and lack portability.
• A need exists for simple, self-powered, and portable diagnostic tools.

Purpose of the Study:

• To introduce a novel portable millifluidic nanogenerator lab-on-a-chip device for measuring blood electrical conductivity at low frequencies.
• To demonstrate the device's self-powering capability and its use of blood as a conductive medium.
• To validate the device's accuracy using simulated body fluid and human blood plasma.

Main Methods:

• Development of a portable millifluidic nanogenerator lab-on-a-chip device.
• Utilizing blood as the conductive substance within the triboelectric nanogenerator system.
• Analysis of generated voltage using artificial intelligence models for conductivity estimation.

Main Results:

• The device successfully measured electrical conductivity of blood samples.
• Experimental results showed efficacy in detecting conductivity variations due to electrolyte concentration changes.
• AI models achieved high accuracy in predicting blood electrical conductivity from generated voltage patterns.

Conclusions:

• The proposed device offers a simple, portable, and self-powered solution for blood electrical conductivity assessment.
• The 3D-printed, disposable design facilitates point-of-care applications.
• The technology shows promise for rapid diagnostics and adaptability to various analytical tasks.