Wireless Drug Delivery Devices

Drug delivery devices pose a possible alternative to overcome the limitations of systemic administration as they can provide patients or physicians the control on release mechanism and drug regimen. Capsule‐shaped devices have been widely used in medical practice for wireless endoscopy and drug absorption rate studies. Drug delivery devices are categorized into passive and active systems. Various kinds of flexible materials have been explored for the development of transdermal drug delivery devices that offer sustained drug delivery and stable drug levels with reduced side effects. For implantable drug delivery systems, microchips have been envisioned as a promising platform for storing drugs in tiny reservoirs that are fabricated through micromachined technology. The rapid advancements in fabrication and packaging technologies have facilitated drug delivery devices with compact design and integrated systems, leveraging micro‐ and nanoscale drug delivery mechanisms for in vivo treatment of diseases.