Fully Autonomous Active Self-Powered Point-of-Care Devices: The Challenges and Opportunities

Area of Science:

• Biomedical Engineering
• Medical Diagnostics
• Energy Harvesting

Background:

• Point-of-care (POC) devices offer revolutionary healthcare potential, enabling immediate diagnostics at the patient's location.
• Continuous, non-invasive biomarker screening is advancing disease prevention, diagnosis, and management.
• Effective and reliable power sources remain a critical challenge for POC devices, especially in resource-limited settings.

Purpose of the Study:

• To provide an overview of self-powering techniques for point-of-care devices.
• To explore methods where the biological sample simultaneously generates energy for device operation.
• To review the current state-of-the-art in self-powered POC technologies, including research, patents, and commercial products.

Main Methods:

• Literature review of self-powering techniques for POC devices.
• Analysis of energy generation mechanisms utilizing patient samples.
• Survey of research projects, patents, and commercial products in self-powered POCs since the mid-2010s.

Main Results:

• Identification of various techniques for self-powered POC devices.
• Demonstration of sample-to-energy conversion integrated with diagnostic functions.
• Compilation of recent advancements and commercial availability of self-powered POC solutions.

Conclusions:

• Self-powering technology is essential for the widespread adoption of POC devices, particularly in areas lacking stable electricity.
• Integrating energy generation with sample detection offers a sustainable solution for stand-alone diagnostic systems.
• The field of self-powered POC devices is rapidly evolving, with significant innovation from mid-2010s to the present.