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ACS Appl Mater Interfaces ; 13(33): 39126-39134, 2021 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-34383476

RESUMO

The usage of exogenous antioxidant materials to relieve oxidative stress offers an important strategy for the therapy of oxidative stress-induced injuries. However, the fabrication processes toward the antioxidant materials usually require the involvement of extra metal ions and organic agents, as well as sophisticated purification steps, which might cause tremendous environmental stress and induce unpredictable side effects in vivo. To address these issues, herein, we proposed a novel strategy to fabricate green nanoparticles for efficiently modulating oxidative stress, which was facilely prepared from tea polyphenol extracts (originated from green tea) via a green enzymatic polymerization-based chemistry method. The resulting nanoparticles possessed a uniform spherical morphology and good stability in water and biomedium and demonstrated excellent radical scavenging properties. These nanoparticle scavengers could effectively prevent intracellular oxidative damage, accelerate wound recovery, and protect the kidneys from reactive oxygen species damaging in the acute kidney injury model. We hope this work will inspire the further development of more types of green nanoparticles for antioxidant therapies via similar synthetic strategies using green biomass materials.


Assuntos
Injúria Renal Aguda/prevenção & controle , Antioxidantes/química , Nanopartículas/química , Estresse Oxidativo/efeitos dos fármacos , Polifenóis/química , Chá/química , Células 3T3 , Células A549 , Animais , Antioxidantes/farmacologia , Catecóis/química , Sobrevivência Celular/efeitos dos fármacos , Feminino , Sequestradores de Radicais Livres/metabolismo , Química Verde , Peroxidase do Rábano Silvestre/química , Células Endoteliais da Veia Umbilical Humana , Humanos , Peróxido de Hidrogênio/química , Camundongos , Espécies Reativas de Oxigênio/metabolismo , Nanomedicina Teranóstica , Cicatrização/efeitos dos fármacos
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