FEA-Guided Co-Design of Bubble Microneedles: Controlled Tip Separation for Rapid Transdermal and Sublingual Delivery

This study developed a co-design framework using finite element analysis to optimize bubble microneedles, achieving controlled tip separation and effective drug delivery through the skin and mucosa while maintaining insertion strength.

This study introduces a co-design framework using finite element analysis to optimize separable bubble microneedles, demonstrating enhanced transdermal and sublingual drug delivery in preclinical models. In vivo results showed faster hair regrowth and glucose lowering in animals, indicating potential improvements over traditional methods.

This review examines the potential of swellable microneedles in drug delivery and diagnostics, highlighting innovations and challenges in their use for chronic disease treatment, but noting that issues like physiological responsiveness and long-term stability still require research.

This study reviews the evolution and modifications of microneedle drug delivery systems, initially designed for percutaneous use, now expanded for targeting a variety of tissues and organs such as ocular, oral mucosal, and gastrointestinal, suggesting widespread future applicability.

This article provides an overview of microneedle technology for transcutaneous drug delivery, discussing microneedle designs, materials, and activation methods that enhance drug stability and regulated release, and outlines considerations for their successful clinical implementation, such as biocompatibility and production cost.