Stimuli‐Responsive Materials for Biomedical Applications

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Abstract
Stimuli‐responsive materials (SRMs) are materials that change properties when exposed to external or internal stimuli. They respond to physiological changes within cells and tissues, as well as external triggers including light, magnetic fields, ultrasound, and electricity. In medicine, SRMs have diverse applications spanning drug delivery, tissue engineering, and diagnostics. They enable targeted drug release at specific times and locations, facilitate tissue generation and repair, and enhance disease detection capabilities. Beyond medical uses, SRMs are employed in smart coatings and artificial muscle systems. The breadth of biomedical applications for SRMs is extensive, generating substantial research into novel and innovative material development. Challenges in creating safe and efficient SRMs for medical treatments have driven innovative approaches in two key areas: functionalizing and modifying naturally occurring materials and developing new synthetic nanomaterials. The complexity of producing effective SRMs has necessitated creative solutions to overcome safety and efficiency barriers in medical applications. This ongoing research continues to expand the potential therapeutic uses of these responsive materials. This review examines literature focused on SRM development for external stimuli responses, particularly light, magnetic fields, ultrasound, and electricity, rather than covering the complete spectrum of stimuli‐responsive applications.

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