Near-Infrared Light-Regulated Drug-Food Homologous Bioactive Molecules and Photothermal Collaborative Precise Antibacterial Therapy Nanoplatform with Controlled Release Property.
2021
Herein, a collaborative precise antibacterial wound healing therapy nanoplatform integrating drug-food homologous bioactive molecule (cinnamaldehyde, CA) with photothermal therapy (PTT) is presented. Copper-gallic acids-cinnamaldehyde-polydopamine nanorods (Cu-GA-CA-PDA NRs) with near-infrared light (NIR)-controlled CA release property are fabricated, which also integrate CA and photothermal synergistic sterilization, as well as antioxidant, anti-inflammatory, and anti-infection capacities. The characteristics of NIR-mediated CA release and photothermal response of Cu-GA-CA-PDA NRs support their excellent sterilization performance in vitro/in vivo. In addition, under the guidance of NIR, Cu-GA-CA-PDA NRs can hinder the formation of inflammatory cells, reduce oxidative stress damage, accelerate the regeneration of skin tissues in S. aureus-infected wound sites, and achieve the goal of promoting wound healing. Therefore, NIR-mediated Cu-GA-CA-PDA NRs with multifunctional biological activities provide a highly competitive strategy for curing bacteria-infected wounds.
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