Rational Design of Reversible Redox Shuttle for Highly Efficient Light-Driven Microswimmer

Wang, Jizhuang; Xiong, Ze; Liu, Ming; Li, Xiaomeng; Zheng, Jing; Zhan, Xiaojun; Ding, Weiting; Chen, Jianan; Li, Xuechen; Feng, Shien‐Ping; Tang, Jinyao

doi:10.1021/acsnano.9b08799

Cited by 30 publications

(39 citation statements)

References 49 publications

(76 reference statements)

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“…TiO 2 -Au/Ag Janus sphere [177] 2 (D) Self-electrophoresis 0.5 wt% H 2 O 2 600 mW cm À2 UV %15 2 Â 10 À10 a) p-n silicon nanowire [156] 0.5 (D) Self-electrophoresis 70 μM ferrocenemethanol %70 mW cm À2 visible-light %500 2.3 Â 10 À6 %10 (L) Cu 2 O@N-CNT sphere [154] 1.5 (D) Self-electrophoresis 30 mM glucose %150 mW cm À2 green light 18.7 1.6 Â 10 À9 a)…”

Section: Alleviation Of the Biofoulingmentioning

confidence: 99%

“…Reproduced with permission. [ 156 ] Copyright 2019, American Chemical Society. d) Phase diagram for the relative propulsion efficiency and toxicity (relative viability of cell) of different chemicals MFc, red dots; H 2 Q/BQ, purple dots; H 2 O 2 , blue dots).…”

Section: Challenges and Outlooks For Biomedical Lmnrsmentioning

confidence: 99%

“…Because the reversible redox couple is not consumed in the reaction, a much‐reduced chemical concentration can be used, which improved biocompatibility (Figure 12c). [ 47,56,156 ] For any electrophoretic MNR, the swimming speed ( U ) is proportional to the current density ( J ) and reversely proportional to the diffusion coefficient of charged ion ( D ion ) as

U \propto \frac{J}{D_{ion}}

. [ 157–159 ] Based on this equation, we identified a group of reversible redox‐active but diffusion‐sluggish redox couples with outstanding propulsion efficiency at biocompatible dosage, as shown in Figure 12c.…”

Section: Challenges and Outlooks For Biomedical Lmnrsmentioning

confidence: 99%

“…c) Schematic of the light-driven microswimmer that converts incident photon into mechanical propulsion with the aid of reversible redox shuttles. Reproduced with permission [156]. Copyright 2019, American Chemical Society.…”

mentioning

confidence: 99%

“…d) Phase diagram for the relative propulsion efficiency and toxicity (relative viability of cell) of different chemicals MFc, red dots; H 2 Q/BQ, purple dots; H 2 O 2 , blue dots). Reproduced with permission [156]. Copyright 2019, American Chemical Society.…”

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confidence: 99%

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The Encoding of Light‐Driven Micro/Nanorobots: from Single to Swarming Systems

Wang

Xiong

Tang

2021

Advanced Intelligent Systems

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Figure 5. LMNR manipulation by frequency-selective encoding. a) Micromotor based on polystyrene particle, with caps resonant at different wavelengths, can maneuver the motion direction through thermophoresis. Reproduced with permission. [70] Copyright 2016, American Chemical Society. b) Multicomponent microswimmer that exhibited dissimilar behaviors under different incident light wavelengths. Reproduced with permission. [71] Copyright 2018, Wiley-VCH. c) Janus TiO 2 /Si nanotree motor with multichannel controllability by orthogonal dye sensitizing. Reproduced with permission. [73]

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Section: Alleviation Of the Biofoulingmentioning

confidence: 99%

Section: Challenges and Outlooks For Biomedical Lmnrsmentioning

confidence: 99%

U \propto \frac{J}{D_{ion}}

Section: Challenges and Outlooks For Biomedical Lmnrsmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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The Encoding of Light‐Driven Micro/Nanorobots: from Single to Swarming Systems

Wang

Xiong

Tang

2021

Advanced Intelligent Systems

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Magnetically Manipulated Optoelectronic Hybrid Microrobots for Optically Targeted Non‐Genetic Neuromodulation

Gao,

Guo,

Yang

et al. 2023

Advanced Materials

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Optically controlled neuromodulation is a promising approach for basic research of neural circuits and the clinical treatment of neurological diseases. However, developing a non‐invasive and well‐controllable system to deliver accurate and effective neural stimulation is challenging. Micro/nanorobots have shown great potential in various biomedical applications because of their precise controllability. Here, we present a magnetically manipulated optoelectronic hybrid microrobot (MOHR) for optically targeted non‐genetic neuromodulation. By integrating the magnetic component into the metal‐insulator‐semiconductor (MIS) junction design, the MOHR had excellent magnetic controllability and optoelectronic properties. The MOHR displayed a variety of magnetic manipulation modes that enabled precise and efficient navigation in different biofluids. Furthermore, the MOHR could achieve precision neuromodulation at the single‐cell level because of its accurate targeting ability. This neuromodulation was achieved by the MOHR's photoelectric response to visible light irradiation, which enhanced the excitability of the targeted cells. Finally, we showed that the well‐controllable MOHRs effectively restored neuronal activity in neurons damaged by β‐amyloid, a pathogenic agent of Alzheimer's disease. By coupling precise controllability with efficient optoelectronic properties, the hybrid microrobot system is a promising strategy for targeted on‐demand optical neuromodulation.This article is protected by copyright. All rights reserved

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Template‐Guided Silicon Micromotor Assembly for Enhanced Cell Manipulation

Gao,

Ou,

Liu

et al. 2024

Angewandte Chemie

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Light‐driven micro/nanorobots (LMNRs) are tiny, untethered machines with great potential in fields like precision medicine, nano manufacturing, and various other domains. However, their practicality hinges on developing light‐manipulation strategies that combine versatile functionalities, flexible design options, and precise controllability. Our study introduces an innovative approach to construct micro/nanorobots (MNRs) by utilizing micro/nanomotors as fundamental building blocks. Inspired by silicon Metal‐Insulator‐Semiconductor solar cell principles, we design a new type of optomagnetic hybrid micromotors (OHMs). These OHMs have been skillfully optimized with integrated magnetic constituent, resulting in efficient light propulsion, precise magnetic navigation, and the potential for controlled assembly. One of the key features of the OHMs is their ability to exhibit diverse motion modes influenced by fracture surfaces and interactions with the environment, streamlining cargo conveyance along "micro expressway" ‐ the predesigned microchannels. Further enhancing their versatility, a template‐guided assembly strategy facilitates the assembly of these micromotors into functional microrobots, encompassing various configurations such as "V‐shaped", "N‐shaped", and 3D structured microrobots. The heightened capabilities of these microrobots, underscore the innovative potential inherent in hybrid micromotor design and assembly, which provides a foundational platform for the realization of multi‐component microrobots. Our work moves a step toward forthcoming microrobotic entities boasting advanced functionalities.

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Rational Design of Reversible Redox Shuttle for Highly Efficient Light-Driven Microswimmer

Cited by 30 publications

References 49 publications

The Encoding of Light‐Driven Micro/Nanorobots: from Single to Swarming Systems

The Encoding of Light‐Driven Micro/Nanorobots: from Single to Swarming Systems

Magnetically Manipulated Optoelectronic Hybrid Microrobots for Optically Targeted Non‐Genetic Neuromodulation

Template‐Guided Silicon Micromotor Assembly for Enhanced Cell Manipulation

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