Recent progress in actuation technologies of micro/nanorobots

Xu, Ke; Liu, Bing

doi:10.3762/bjnano.12.59

Cited by 11 publications

(7 citation statements)

References 54 publications

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“…Hanie Hashtroudi studied the gas sensing properties of two-dimensional hybrid nanomaterial conductance devices containing layered transition metals at room temperature and the effect of two-dimensional nanomaterials hybridization on the gas sensing properties [83]. By adding metals or polymers to the surface location, or by combining two or more different materials or by developing heterojunction layers, the sensing performance is improved.…”

Section: Gas Sensors Based On Other 2d Nanomaterialsmentioning

confidence: 99%

Recent Progress in Gas Sensor Based on Nanomaterials

Lun

2022

Micromachines

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Nanomaterials-based gas sensors have great potential for substance detection. This paper first outlines the research of gas sensors composed of various dimensional nanomaterials. Secondly, nanomaterials may become the development direction of a new generation of gas sensors due to their high sensing efficiency, good detection capability and high sensitivity. Through their excellent characteristics, gas sensors also show high responsiveness and sensing ability, which also plays an increasingly important role in the field of electronic skin. We also reviewed the physical sensors formed from nanomaterials in terms of the methods used, the characteristics of each type of sensor, and the advantages and contributions of each study. According to the different kinds of signals they sense, we especially reviewed research on gas sensors composed of different nanomaterials. We also reviewed the different mechanisms, research processes, and advantages of the different ways of constituting gas sensors after sensing signals. According to the techniques used in each study, we reviewed the differences and advantages between traditional and modern methods in detail. We compared and analyzed the main characteristics of gas sensors with various dimensions of nanomaterials. Finally, we summarized and proposed the development direction of gas sensors based on various dimensions of nanomaterials.

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Section: Gas Sensors Based On Other 2d Nanomaterialsmentioning

confidence: 99%

Recent Progress in Gas Sensor Based on Nanomaterials

Lun

2022

Micromachines

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“…Various types of MNRs have been developed based on distinct propulsion mechanisms. , Typically, they are powered either chemically by locally accessible fuels or physically by external fields like magnetic, − light, − ultrasound, , and electrical fields . In addition, natural microorganisms or cells are also used by relying on their chemotaxis. − Recent advances in the design, fabrication, and operation of micro-/nanorobots have greatly enhanced their power, functionalities, and versatility. ,− With desired small dimensions, controllable direction and speed, as well as promising capabilities of executing multiple tasks, these untethered tiny machines show immense potential for biomedical applications. , …”

Section: Introductionmentioning

confidence: 99%

Lighting up Micro-/Nanorobots with Fluorescence

et al. 2022

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Micro-/nanorobots (MNRs) can be autonomously propelled on demand in complex biological environments and thus may bring revolutionary changes to biomedicines. Fluorescence has been widely used in real-time imaging, chemo-/biosensing, and photo-(chemo-) therapy. The integration of MNRs with fluorescence generates fluorescent MNRs with unique advantages of optical trackability, on-the-fly environmental sensitivity, and targeting chemo-/photon-induced cytotoxicity. This review provides an up-to-date overview of fluorescent MNRs. After the highlighted elucidation about MNRs of various propulsion mechanisms and the introductory information on fluorescence with emphasis on the fluorescent mechanisms and materials, we systematically illustrate the design and preparation strategies to integrate MNRs with fluorescent substances and their biomedical applications in imaging-guided drug delivery, intelligent on-the-fly sensing and photo-(chemo-) therapy. In the end, we summarize the main challenges and provide an outlook on the future directions of fluorescent MNRs. This work is expected to attract and inspire researchers from different communities to advance the creation and practical application of fluorescent MNRs on a broad horizon.

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“…They are nano/micromaterials with the ability to harvest energy from their surroundings and convert it into self‐propulsion while performing various tasks. [ 19,20 ] Their active motion induces a local mixing effect, allowing them to overcome the diffusion limit that affects conventional water purification methods. [ 21–24 ] This, in turn, promotes contact with pollutants and accelerates their degradation.…”

Section: Introductionmentioning

confidence: 99%

Nano/Microplastics Capture and Degradation by Autonomous Nano/Microrobots: A Perspective

Urso

Pumera

2022

Adv Funct Materials

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The growing use of plastic materials has led to the continuous accumulation of wastes in marine environments, which fragment into hazardous micro‐and nanoplastics. These plastic particles absorb toxic organic pollutants on their surface, support bacterial biofilms growth, and propagate through the food chain, posing serious risks for human health. Therefore, nano/microplastics pollution has become a global issue, making their definitive elimination compulsory. Self‐propelled nano/microrobots have demonstrated efficient removal of nano/microplastics from water, combining enhanced physicochemical properties of nano/microscale materials and active motion. During the last year, the potential of this technology to degrade nano/microplastics has been investigated. Here, the most advanced strategies for nano/microplastics capture and subsequent degradation by autonomous nano/microrobots are critically reviewed. A short introduction to the main propulsion mechanisms and experimental techniques for studying nano/microplastics degradation is also provided. Forthcoming challenges in this research field are discussed proactively. This perspective inspires future nano/microrobotic designs and approaches for water purification from nano/microplastics and other emerging pollutants.

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Recent progress in actuation technologies of micro/nanorobots

Cited by 11 publications

References 54 publications

Recent Progress in Gas Sensor Based on Nanomaterials

Recent Progress in Gas Sensor Based on Nanomaterials

Lighting up Micro-/Nanorobots with Fluorescence

Nano/Microplastics Capture and Degradation by Autonomous Nano/Microrobots: A Perspective

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