Smart Microdevices Laying “Breadcrumbs” to Find the Way Home: Chemotactic Homing TiO2/Pt Janus Microrobots

Lei Kong; Carmen C. Mayorga-Martinez; Jianguo Guan; Martin Pumera

doi:10.1002/asia.201900004

Smart Microdevices Laying “Breadcrumbs” to Find the Way Home: Chemotactic Homing TiO₂/Pt Janus Microrobots

Lei Kong, Carmen C. Mayorga-Martinez, Jianguo Guan, Martin Pumera

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Synthetic microrobots or micromotors are known to show “intelligent” behavior such as magnetotaxis, phototaxis, chemotaxis, active detection, and chemical communication. Herein, we present the concept of micromotors laying “breadcrumbs”; that is, these micromachines can move/return to a home position without external guidance after their external energy input is stopped. As a demonstration, TiO₂/Pt Janus micromotors that move forward with UV light can return back following the previous path when the UV light is turned off. Such autonomy of motion opens the door for truly independent applications of micromotors in the “deliver-and-return” fashion.

Original language	English
Pages (from-to)	2456-2459
Number of pages	4
Journal	Chemistry - An Asian Journal
Volume	14
Issue number	14
DOIs	https://doi.org/10.1002/asia.201900004
Publication status	Published - 2019 Jul 15

Bibliographical note

Funding Information:
Authors acknowledge A*STAR grant SERC A1783c0005 (Singapore) and the National Natural Science Foundation of China (21474078 and 51521001). L.K. acknowledges the Scholarship Fund from China Scholarship Council. This work was supported by the project Advanced Functional Nanorobots (reg. No. CZ.02.1.01/0.0/0.0/15_003/0000444 financed by the EFRR) by Czech Republic.

Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

All Science Journal Classification (ASJC) codes

Biochemistry
Organic Chemistry

Access to Document

10.1002/asia.201900004

Cite this

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title = "Smart Microdevices Laying “Breadcrumbs” to Find the Way Home: Chemotactic Homing TiO2/Pt Janus Microrobots",

abstract = "Synthetic microrobots or micromotors are known to show “intelligent” behavior such as magnetotaxis, phototaxis, chemotaxis, active detection, and chemical communication. Herein, we present the concept of micromotors laying “breadcrumbs”; that is, these micromachines can move/return to a home position without external guidance after their external energy input is stopped. As a demonstration, TiO2/Pt Janus micromotors that move forward with UV light can return back following the previous path when the UV light is turned off. Such autonomy of motion opens the door for truly independent applications of micromotors in the “deliver-and-return” fashion.",

author = "Lei Kong and Mayorga-Martinez, {Carmen C.} and Jianguo Guan and Martin Pumera",

note = "Funding Information: Authors acknowledge A*STAR grant SERC A1783c0005 (Singapore) and the National Natural Science Foundation of China (21474078 and 51521001). L.K. acknowledges the Scholarship Fund from China Scholarship Council. This work was supported by the project Advanced Functional Nanorobots (reg. No. CZ.02.1.01/0.0/0.0/15_003/0000444 financed by the EFRR) by Czech Republic. Publisher Copyright: {\textcopyright} 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

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AU - Guan, Jianguo

AU - Pumera, Martin

N1 - Funding Information: Authors acknowledge A*STAR grant SERC A1783c0005 (Singapore) and the National Natural Science Foundation of China (21474078 and 51521001). L.K. acknowledges the Scholarship Fund from China Scholarship Council. This work was supported by the project Advanced Functional Nanorobots (reg. No. CZ.02.1.01/0.0/0.0/15_003/0000444 financed by the EFRR) by Czech Republic. Publisher Copyright: © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

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