International Journal of Scientific Research and Engineering Development

Microneedle patches represent a transformative evolution in transdermal drug delivery, offering a minimally invasive, pain-free alternative to traditional injections and improving on the limitations of conventional transdermal systems. By deploying arrays of micron-scale needles that pierce the outermost skin barrier (the stratum corneum), these devices open transient micro channels that permit efficient transport of small molecules, peptides, proteins, vaccines and other biologics directly into viable epidermal or dermal tissue. Various formats solid microneedles that pre-treat the skin, coated microneedles bearing drug on their surface, dissolving microneedles composed of drug-matrix materials, hollow microneedles that facilitate fluid flow, and hydrogel-forming microneedles that swell and enable sustained release have been developed to tailor insertion depth, drug loading and release kinetics. Their benefits include enhanced bioavailability, elimination of first-pass hepatic metabolism, improved patient compliance (especially in needle-phobic populations), and simplified administration potentially outside clinical settings. They have wide applications such as vaccine delivery, hormone therapy, pain management, localized cancer therapy particularly in melanoma & breast cancer, dermatological disorder treatment and wound healing. Nonetheless, translation to widespread clinical use remains challenged by manufacturing scalability, sterilization and storage stability, accurate dosing across skin types, regulatory approval pathways and cost-effectiveness. Future directions point toward “smart” microneedle patches integrated with sensors, responsive or triggered release, personalized dosing and combination therapies, enabling real-time monitoring of therapy alongside delivery. As such, microneedle transdermal patches stand poised to disrupt traditional delivery methods and open new frontiers in drug administration and patient-centric care.

Ms.Aakanksha Bhawal, Ms.Vrushali Katkar, Ms.Sakshi Mhatre, Ms.Vaishnavi Bhoir, Ms.Gauri Pukale, Dr.Shrutika Patil,"Microneedle Technology for Enhanced Transdermal Drug Delivery: A Comprehensive Review" International Journal of Scientific Research and Engineering Development, V9(1): Page(2106-2120) Jan-Feb 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.