Magnetic manipulation of liquid-wrapped hydrogels†

Abstract

This study explores the encapsulation of magnetic and non-magnetic hydrogels within a liquid medium using the liquid–liquid encapsulation technique. The encapsulation process involves the suspension of hydrogels in laser oil, followed by the generation of compound core droplets, which are then wrapped by an interfacial layer of canola oil floating on a water bath. This method produces magneto-responsive compound encapsulated cargos with potential applications in diverse fields such as drug delivery, tissue engineering, and soft robotics. The magnetic properties of these encapsulated cargos are exploited for magnet-assisted release and underwater manipulation, demonstrating enhanced stability, controlled release, and adaptability. This research opens new avenues for the application of magnetic hydrogels in dynamic and responsive systems.