Overexpressed Artificial Spidroin Based Microneedle Spinneret for 3D Air Spinning of Hybrid Spider Silk

被引:4
|
作者
Lin, Baoyang [1 ]
Gao, Bingbing [1 ]
Wei, Meng [1 ]
Li, Shuhuan [1 ]
Zhou, Qian [1 ]
He, Bingfang [1 ]
机构
[1] Nanjing Tech Univ, Coll Biotechnol & Pharmaceut Engn, Sch Pharmaceut Sci, Nanjing 211816, Peoples R China
基金
中国国家自然科学基金;
关键词
spidroin; 3D printing; air spin; rheumatoidarthritis; wound;
D O I
10.1021/acsnano.4c08557
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Efforts have been devoted to developing strategies for converting spider silk proteins (spidroins) into functional silk materials. However, studies mimicking the exact natural spinning process of spiders encounter arduous challenges. In this paper, consistent with the natural spinning process of spiders, we report a high-efficient spinning strategy that enables the mass preparation of multifunctional artificial spider silk at different scales. By simulating the structural stability mechanism of the cross-beta-spine of the amyloid polypeptide by computer dynamics, we designed and obtained an artificial amyloid spidroin with a significantly increased yield (13.5 g/L). Using the obtained artificial amyloid spidroin, we fabricated artificial spiders with artificial spinning glands (hollow MNs). Notably, by combining artificial spiders with 3D printing, we perform patterned air spinning at the macro- and microscales, and the resulting patterned artificial spider silk has excellent pump-free liquid flow and conductive and frictional electrical properties. Based on these findings, we used macroscale artificial spider silk to treat rheumatoid arthritis in mice and micro artificial spider silk to prepare wound dressings for diabetic mice. We believe that artificial spider silk based on an exact spinning strategy will provide a high-efficient way to construct and modulate the next generation of smart materials.
引用
收藏
页码:25778 / 25794
页数:17
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