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Glucose-fueled Micromotors with Highly Efficient Visible Light Photocatalytic Propulsion

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. http://resolver.caltech.edu/CaltechAUTHORS:20190124-073916003

[img] PDF - Accepted Version
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[img] PDF (XPS, TG data of the as-synthesized Cu2O@N-CNT micromotors, and corresponding videos) - Supplemental Material
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[img] Video (AVI) (Speed of Cu2O@N-CNT micromotors significantly increased after adding 20 mM glucose under 55300 Lux green light) - Supplemental Material
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[img] Video (AVI) (N-CNT particles in different conditions) - Supplemental Material
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[img] Video (AVI) (Motion direction of Cu2O@N-CNT micromotors controlled by green light) - Supplemental Material
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[img] Video (AVI) (Vertical motion of Cu2O@N-CNT micromotors under blue light) - Supplemental Material
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[img] Video (AVI) (Cu2O@N-CNT micromotor’s on/off motion) - Supplemental Material
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[img] Video (AVI) (Cu2O@N-CNTs micromotors with different N-CNT contents move in 10 mM glucose under 55 300 Lux green light) - Supplemental Material
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[img] Video (AVI) (Cu2O@N-CNTs micromotors with 1.35% N-CNTs move in different glucose concentrations under 55 300 Lux green light) - Supplemental Material
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[img] Video (AVI) (Cu2O@N-CNTs micromotors with 1.35% N-CNTs move in 10 mM glucose concentration under different light intensities) - Supplemental Material
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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/acsami.8b17563DOIArticle
https://pubs.acs.org/doi/suppl/10.1021/acsami.8b17563PublisherSupporting Information
ORCID:
AuthorORCID
Dong, Renfeng0000-0001-7590-5750
Ren, Biye0000-0003-0131-8750
Gao, Wei0000-0002-8503-4562
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.
Funders:
Funding AgencyGrant Number
National Natural Science Foundation of China21805096
Natural Science Foundation of Guangdong Province2018A030313358
Natural Science Foundation of Guangdong Province2017A030310432
National Natural Science Foundation of China21674039
National Natural Science Foundation of China21471061
National Natural Science Foundation of China21671071
Applied Science and Technology Planning Project of Guangdong Province2015B010135009
Applied Science and Technology Planning Project of Guangdong Province2017B090917002
Guangdong Ordinary University2015KCXTD005
Guangdong Ordinary University2016KZDXM023
Subject Keywords:micromotors, glucose, visible light, Cu_2O, N-CNTs
Record Number:CaltechAUTHORS:20190124-073916003
Persistent URL:http://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:19 Feb 2019 17:54

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