Melanin/polydopamine-based nanomaterials for biomedical applications
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摘要:
The natural melanin is one kind of ubiquitous biological pigments,which is produced in melanosomes and widely distributed in living organisms.The synthetic melanin,often known as polydopamine (PDA),has similar chemical compositions and physical properties to natural melanin.In recent years,both natural melanin and PDA have aroused increased research interests in biomedical fields owing to their inherent biocompatibility,antioxidant activity,free-radical scavenging,metal ion chelation,strong near-infrared absorption and high photothermal conversion efficiency.Inspired by these fascinating properties,melanin and PDA have been widely used as building blocks for the construction of multifunctional nanoplatforms for various biomedical applications.This review focuses on the state-of-the-art progress in melanin/PDA-based nanomaterials,which covers from their preparation methods to biomedical applications including bioimaging,treatment,theranostics,antibacterial,UV/radiation protection,biosensor and tissue engineering.Moreover,the current trends and the future prospects of melanin/PDA-based nanomaterials are also discussed.