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19. Research Progress of Thermal Conductive Silicone Materials.

Author

ZHU Hongtao, LI Hongqiang, WU Xiangrong, LAI Xuejun, ZENG Xingrong, REN Biye, CHENG Xiantao, and LIU Hong

Subjects
SILICONE rubber, SILICONES, ELECTRIC insulators & insulation, THERMAL conductivity, CORROSION resistance
Abstract

Silicone materials have excellent high/ low temperature resistance, electrical insulation, weather resistance, hydrophobicity and corrosion resistance, while their thermal conductivity is poor, making them difficult to meet the needs of high-performance and miniaturization of equipment in aerospace, electronics and electrical, high-frequency communication and other fields. In recent years, the silicone materials with various thermal conductive fillers have become the research focus. In this review, the thermally conductive mechanism was introduced, and the research progress of thermal conductive silicone grease and silicone rubber were summarized in details, and the future prospects were reviewed. [ABSTRACT FROM AUTHOR]

Published
2023
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37. Glucose-fueled Micromotors with Highly Efficient Visible Light Photocatalytic Propulsion

Author

Wang, Qinglong, Dong, Renfeng, Wang, Chun, Xu, Shuyu, Chen, Decheng, Liang, Yuying, Ren, Biye, Gao, Wei, and Cai, Yuepeng

Abstract

Synthetic micro/nanomotors fueled by glucose are highly desired for numerous practical applications because of the biocompatibility of their required fuel. However, currently all of the glucose-fueled micro/nanomotors are based on enzyme-catalytic-driven mechanisms, which usually suffer from strict operation conditions and weak propulsion characteristics that greatly limit their applications. Here, we report a highly efficient glucose-fueled cuprous oxide@N-doped carbon nanotube (Cu_2O@N-CNT) micromotor, which can be activated by environment-friendly visible-light photocatalysis. The speeds of such Cu_2O@N-CNT micromotors can reach up to 18.71 μm/s, which is comparable to conventional Pt-based catalytic Janus micromotors usually fueled by toxic H_2O_2 fuel. In addition, the velocities of such motors can be efficiently regulated by multiple approaches, such as adjusting the N-CNT content within the micromotors, glucose concentrations, or light intensities. Furthermore, the Cu_2O@N-CNT micromotors exhibit a highly controllable negative phototaxis behavior (moving away from light sources). Such motors with outstanding propulsion in biological environments and wireless, repeatable, and light-modulated three-dimensional motion control are extremely attractive for future practical applications.

Published
2019

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