Bioelectronic Considerations in Biomedical Microneedles

Area of Science:

• Biomedical Engineering
• Materials Science
• Nanotechnology

Background:

• Microneedles (MNs) are advanced platforms for transdermal drug delivery and health monitoring.
• Conventional MN systems face limitations in delivery efficiency and real-time responsiveness due to passive diffusion and complex operations.
• Integration with enhancement strategies like bioelectronics offers improved flexibility, conductivity, and control for MN systems.

Purpose of the Study:

• To review recent advances in microneedle-assisted bioelectronic systems.
• To propose a systematic bioelectronic design framework for MN systems.
• To provide insights into the rational design of next-generation wearable and closed-loop biomedical platforms.

Main Methods:

• Literature review of microneedle-assisted bioelectronic systems.
• Development of a "front-end," "mid-end," and "back-end" bioelectronic design framework.
• Analysis of integration mechanisms and architectural strategies in bioelectronic MNs.

Main Results:

• Bioelectronic integration significantly enhances MN capabilities for drug delivery and biosensing.
• The proposed framework systematically explains how biointerfaces, signal transduction, and electronic modules influence system performance.
• Current research predominantly focuses on material development and device fabrication, with less emphasis on design logic.

Conclusions:

• Bioelectronic microneedles represent a significant advancement in theranostic platforms.
• The proposed design framework facilitates a deeper understanding and rational design of sophisticated bioelectronic MN systems.
• Future research should focus on optimizing the integration and design logic for next-generation wearable and closed-loop biomedical applications.