Near-infrared light-driven yolk@shell carbon@silica nanomotors for fuel-free triglyceride degradation  

作　　者：Yi Xing Songsong Tang Xin Du Tailin Xu Xueji Zhang 

机构地区：[1]Research Center for Bioengineering and Sensing Technology,Beijing Key Laboratory for Bioengineering and Sensing Technology,Department of Chemistry&Biological Engineering,University of Science&Technology Beijing,Beijing,100083,China

出　　处：《Nano Research》2021年第3期654-659,共6页纳米研究（英文版）

基　　金：This work was supported by the Fundamental Research Funds for the Central Universities(Nos.FRF-TP-19-017B1,2302015-06500017,FRF-BR-19-003B,and FRF-DB-20-14A);the National Natural Science Foundation of China(Nos.21501009 and 21804007);Beijing Municipal Science and Technology Commission(No.z131102002813058).

摘　　要：Yolk@shell mesoporous nanoparticles have received close attention due to their controllable structures and integrated functions.However,most yolk@shell nanosystems lack self-propulsion.Herein,yolk@spiky-shell structured carbon@silica nanomotors are fabricated with near-infrared(NIR)light self-thermophoretic propulsion as lipase nanocarriers for fuel-free triglyceride degradation.The light propulsion accelerates the accumulation of nanomotors on the droplet interface,and the efficient lipase loading further facilitates the rapid degradation of tributyrin droplets.By adjusting the yolk and spiky structure,the obtained semi-yolk@spiky-shell structured nanomotors exhibit the highest capacity of lipase(442 mg/g)and the highest light-driven diffusion coefficient(ca.55%increase under 2 W/cm^(2 )irradiation),thus improving the degradation efficiency of triglyceride(93.1%under NIR light vs.66.7%without NIR light within 20 min).This work paves the way to rationally design yolk@shell structured nanomotors for diverse applications.

关 键 词：yolk@spiky-shell carbon@silica NANOMOTORS self-thermophoresis triglyceride degradations 

分 类 号：TM3[电气工程—电机] TB383[一般工业技术—材料科学与工程]