NIR-II light-responsive biodegradable shape memory composites based on cuprorivaite nanosheets for enhanced tissue reconstruction

被引：32
作者：
Yang, Chen [1 ,2 ]
Zheng, Rui [1 ,2 ]
Younis, Muhammad Rizwan [2 ]
Shao, Jundong [2 ]
Fu, Lian -Hua [2 ]
Zhang, Dong-Yang [2 ]
Lin, Jing [2 ]
Li, Zhiming [1 ]
Huang, Peng [1 ,2 ]
机构：
[1] Wenzhou Med Univ, Affiliated Hosp 1, Dept Dermatol & Venereol, Wenzhou 325000, Zhejiang, Peoples R China
[2] Shenzhen Univ, Hlth Sci Ctr, Int Canc Ctr,Sch Biomed Engn, Marshall Lab Biomed Engn,Lab Evolutionary Therana, Shenzhen 518060, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2021年 / 419卷
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Biodegradable; Shape memory; Near-infrared-II; Self-knot; Angiogenesis; POLYMER; COPPER; SCAFFOLDS; NANOCOMPOSITES; ANGIOGENESIS; MICROFIBERS; FABRICATION; RECOVERY; DELIVERY; IONS;
D O I：
10.1016/j.cej.2021.129437
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Near-infrared (NIR) light-responsive shape-memory composites have shown great potential in various biomedical applications due to their amazing remote actuation property. However, most of them are bioinert and restricted in NIR-I biological window. Here, we developed a new biodegradable NIR-II-responsive shape memory composite by the incorporation of CaSiCu4O10 nanosheets (CUP NSs) into shape memory polymer of poly (D, Llactide-co-trimethylene carbonate) (PDLLA-co-TMC, denoted as PT). The as-prepared CUP/PT composites possessed outstanding shape memory performance upon low power NIR-II laser irradiation (1064 nm, 0.4 W.cm- 2), offering the possibility of deep-tissue applications. Moreover, due to the sustained release of bioactive Cu2+ and SiO44- ions, the composites exhibited strong stimulation of angiogenesis both in vitro and in vivo. Our work demonstrated the promising potential of CUP/PT composites as NIR-II light-responsive biomaterials with enhanced tissue reconstruction ability, especially for wound healing.
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页数：9
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