Wang, Qinglong and Dong, Renfeng and Wang, Chun and Xu, Shuyu and Chen, Decheng and Liang, Yuying and Ren, Biye and Gao, Wei and Cai, Yuepeng (2019) Glucose-fueled Micromotors with Highly Efficient Visible Light Photocatalytic Propulsion. ACS Applied Materials & Interfaces, 11 (6). pp. 6201-6207. ISSN 1944-8244. doi:10.1021/acsami.8b17563. https://resolver.caltech.edu/CaltechAUTHORS:20190124-073916003
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20190124-073916003
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.
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Additional Information: | © 2019 American Chemical Society. Received: October 8, 2018; Accepted: January 23, 2019; Published: January 23, 2019. The authors are grateful for the Natural Science Foundation of China (21805096), Natural Science Foundation of Guangdong Province (2018A030313358, 2017A030310432), the National Natural Science Foundation of China (21674039, 21471061, 21671071), and Applied Science and Technology Planning project of Guangdong Province (2015B010135009, 2017B090917002). Innovation team project of Guangdong Ordinary University (2015KCXTD005), the great scientific research project of Guangdong Ordinary University (2016KZDXM023). Author Contributions: Q.W. and R. D. contributed equally. The authors declare no competing financial interest. | ||||||||||||||||||||||
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Subject Keywords: | micromotors, glucose, visible light, Cu_2O, N-CNTs | ||||||||||||||||||||||
Issue or Number: | 6 | ||||||||||||||||||||||
DOI: | 10.1021/acsami.8b17563 | ||||||||||||||||||||||
Record Number: | CaltechAUTHORS:20190124-073916003 | ||||||||||||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190124-073916003 | ||||||||||||||||||||||
Official Citation: | Glucose-Fueled Micromotors with Highly Efficient Visible-Light Photocatalytic Propulsion. Qinglong Wang, Renfeng Dong, Chun Wang, Shuyu Xu, Decheng Chen, Yuying Liang, Biye Ren, Wei Gao, and Yuepeng Cai. ACS Applied Materials & Interfaces 2019 11 (6), 6201-6207. DOI: 10.1021/acsami.8b17563 | ||||||||||||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||
ID Code: | 92442 | ||||||||||||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||||||||||||
Deposited By: | Tony Diaz | ||||||||||||||||||||||
Deposited On: | 24 Jan 2019 15:49 | ||||||||||||||||||||||
Last Modified: | 16 Nov 2021 03:50 |
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