Light-driven MOF-based micromotors with self-floating characteristics for water sterilization

Huang, Hai; Yang, Haowei; Liu, Jie; Ying, Yulong; Li, Jinhua; Wang, Sheng

doi:10.1039/d3nr02299d

Cited by 5 publications

(2 citation statements)

References 57 publications

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“…In addition, by using electromagnetic waves for this purpose, researchers can easily control the speed and direction of nano/micromotors, and no complex or special equipment is required compared to other propulsion modes such as magnetic or ultrasound waves [ 76 , 77 , 78 ]. Different wavelengths of electromagnetic waves, ranging from ultraviolet (UV) to visible (VIS) to near-infrared (NIR) light [ 79 , 80 , 81 ], as well as X-rays [ 82 ], have been used for nano/micromotor propulsion. In addition, materials such as Ag 3 PO 4 [ 83 ], BiVO 4 [ 84 ], Ag [ 85 ], Cu@MoS 2 [ 86 ], carbon nitride (f-C 3 N 4 ) [ 87 ], TiO 2 [ 88 ], BiOI/AgI/Fe 3 O 4 /Au [ 89 ], ZnO/Pt [ 90 ], and Cu 2 O@CdSe [ 91 ] have been smartly designed and utilized for the construction of nano/micromotors driven by electromagnetic waves.…”

Section: Electromagnetic Wave (Light)-based Propulsionmentioning

confidence: 99%

“…In addition, materials such as Ag 3 PO 4 [ 83 ], BiVO 4 [ 84 ], Ag [ 85 ], Cu@MoS 2 [ 86 ], carbon nitride (f-C 3 N 4 ) [ 87 ], TiO 2 [ 88 ], BiOI/AgI/Fe 3 O 4 /Au [ 89 ], ZnO/Pt [ 90 ], and Cu 2 O@CdSe [ 91 ] have been smartly designed and utilized for the construction of nano/micromotors driven by electromagnetic waves. The mechanism behind such propulsion is usually complex and can include electrophoretic and diffusiophoretic effects or the generation of an interfacial tension or temperature gradient [ 77 , 80 , 92 ].…”

Section: Electromagnetic Wave (Light)-based Propulsionmentioning

confidence: 99%

See 1 more Smart Citation

Nano/Micromotors for Cancer Diagnosis and Therapy: Innovative Designs to Improve Biocompatibility

Zheng,

Huang,

Lin

et al. 2023

Pharmaceutics

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Nano/micromotors are artificial robots at the nano/microscale that are capable of transforming energy into mechanical movement. In cancer diagnosis or therapy, such “tiny robots” show great promise for targeted drug delivery, cell removal/killing, and even related biomarker sensing. Yet biocompatibility is still the most critical challenge that restricts such techniques from transitioning from the laboratory to clinical applications. In this review, we emphasize the biocompatibility aspect of nano/micromotors to show the great efforts made by researchers to promote their clinical application, mainly including non-toxic fuel propulsion (inorganic catalysts, enzyme, etc.), bio-hybrid designs, ultrasound propulsion, light-triggered propulsion, magnetic propulsion, dual propulsion, and, in particular, the cooperative swarm-based strategy for increasing therapeutic effects. Future challenges in translating nano/micromotors into real applications and the potential directions for increasing biocompatibility are also described.

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Section: Electromagnetic Wave (Light)-based Propulsionmentioning

confidence: 99%

Section: Electromagnetic Wave (Light)-based Propulsionmentioning

confidence: 99%

Nano/Micromotors for Cancer Diagnosis and Therapy: Innovative Designs to Improve Biocompatibility

Zheng,

Huang,

Lin

et al. 2023

Pharmaceutics

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3D Motion Manipulation for Micro‐ and Nanomachines: Progress and Future Directions

Huang,

Yang,

Ying

et al. 2023

Advanced Materials

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In the past decade, micro‐ and nanomachines (MNMs) have made outstanding achievements in the fields of targeted drug delivery, tumor therapy, microsurgery, biological detection, and environmental monitoring and remediation. Researchers have made significant efforts to accelerate the rapid development of MNMs capable of moving through fluids by means of different energy sources (chemical reactions, ultrasound, light, electricity, magnetism, heat, or their combinations). However, the motion of MNMs is primarily investigated in confined two‐dimensional (2D) horizontal setups. Furthermore, three‐dimensional (3D) motion control remains challenging, especially for vertical movement and control, significantly limiting its potential applications in cargo transportation, environmental remediation, and biotherapy. Hence, an urgent need is to develop MNMs that can overcome self‐gravity and controllably move in 3D spaces. This review will delve into the latest progress made in MNMs with 3D motion capabilities under different manipulation approaches, discuss the underlying motion mechanisms, explore potential design concepts inspired by nature for controllable 3D motion in MNMs, and present the available 3D observation and tracking systems.This article is protected by copyright. All rights reserved

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Revolutionizing Tetracycline Hydrochloride Remediation: 3D Motile Light‐Driven MOFs Based Micromotors in Harsh Saline Environments

Zhao,

Lin,

et al. 2024

Advanced Science

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Traditional light‐driven metal‐organic‐frameworks (MOFs)‐based micromotors (MOFtors) are typically constrained to two‐dimensional (2D) motion under ultraviolet or near‐infrared light and often demonstrate instability and susceptibility to ions in high‐saline environments. This limitation is particularly relevant to employing micromotors in water purification, as real wastewater is frequently coupled with high salinity. In response to these challenges, ultrastable MOFtors capable of three‐dimensional (3D) motion under a broad spectrum of light through thermophoresis and electrophoresis are successfully synthesized. The MOFtors integrated photocatalytic porphyrin MOFs (PCN‐224) with a photothermal component made of polypyrrole (PPy) by three distinct methodologies, resulting in micromotors with different motion behavior and catalytic performance. Impressively, the optimized MOFtors display exceptional maximum velocity of 1305 ± 327 µm s−1 under blue light and 2357 ± 453 µm s−1 under UV light. In harsh saline environments, these MOFtors are not only maintain high motility but also exhibit superior tetracycline hydrochloride (TCH) removal efficiency of 3578 ± 510 mg g−1, coupling with sulfate radical‐based advanced oxidation processes and peroxymonosulfate. This research underscores the significant potential of highly efficient MOFtors with robust photocatalytic activity in effectively removing TCH in challenging saline conditions, representing a substantial advancement in applying MOFtors within real‐world water treatment technologies.

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Light-driven MOF-based micromotors with self-floating characteristics for water sterilization

Abstract: Three-dimensional motion (especially in the Z-axis direction) of the Metal−Organic Frameworks (MOFs)-based micromotors (MOFtors) is essential but still in its infancy. Herein, we propose a simple strategy for designing light-driven...

Cited by 5 publications

References 57 publications

Nano/Micromotors for Cancer Diagnosis and Therapy: Innovative Designs to Improve Biocompatibility

Nano/Micromotors for Cancer Diagnosis and Therapy: Innovative Designs to Improve Biocompatibility

3D Motion Manipulation for Micro‐ and Nanomachines: Progress and Future Directions

Revolutionizing Tetracycline Hydrochloride Remediation: 3D Motile Light‐Driven MOFs Based Micromotors in Harsh Saline Environments

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