Light-Powered Micro/Nanomotors

Chen, Hongxu; Zhao, Qilong; Du, Xuemin

doi:10.3390/mi9020041

Cited by 74 publications

(60 citation statements)

References 110 publications

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“…There are further approaches to design light‐driven micromotors by, for instance, using bubble‐based propulsion or by inducing temperature gradients to drive thermophoretic swimmers . A detailed discussion regarding the designs for light‐controlled micromotors has been provided in previous reviews . In this report, we focus on chemical micromotors that move in a fluid by light‐induced self‐diffusiophoresis and present the most recent improvements in the design of these micromotors.…”

Section: Light‐controlled Micromotors (Lmms)mentioning

confidence: 99%

Light‐Controlled Micromotors and Soft Microrobots

Palagi

Singh

Fischer

2019

Advanced Optical Materials

113

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Mobile microscale devices and microrobots can be powered by catalytic reactions (chemical micromotors) or by external fields. This report is focused on the role of light as a versatile means for wirelessly powering and controlling such microdevices. Recent advances in the development of autonomous micromotors are discussed, where light permits their actuation with unprecedented control and thereby enables advances in the field of active matter. In addition, structuring the light field is a new means to drive soft microrobots that are based on (photo‐) responsive polymers. The behavior of the two main classes of thermo‐ and photoresponsive polymers adopted in microrobotics (poly(N‐isopropylacrylamide) and liquid‐crystal elastomers) is analyzed, and recent applications are reported. The advantages and limitations of controlling micromotors and microrobots by light are reviewed, and some of the remaining challenges in the development of novel photo‐active materials for micromotors and microrobots are discussed.

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Section: Light‐controlled Micromotors (Lmms)mentioning

confidence: 99%

Light‐Controlled Micromotors and Soft Microrobots

Palagi

Singh

Fischer

2019

Advanced Optical Materials

113

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“…As discussed previously, the force resulting from the interaction of the laser beam with the object of interest is commonly split into two parts, and F grad > F scat is commonly accepted to be the condition necessary for stable trapping. However, the scattering force can also be used to actuate microrobots, and can be used for applications involving a rotating part which can be "pushed" by the light, rather than being dragged into place [129,130]. In-plane rotation of a twin-rotor micropump has been demonstrated, by focusing a Gaussian beam on the sides of flat-lobed "wings" [131].…”

Section: Optical Microrobots: Achievements To Date and Challengesmentioning

confidence: 99%

Optical Micromachines for Biological Studies

2020

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Optical tweezers have been used for biological studies since shortly after their inception. However, over the years research has suggested that the intense laser light used to create optical traps may damage the specimens being studied. This review aims to provide a brief overview of optical tweezers and the possible mechanisms for damage, and more importantly examines the role of optical micromachines as tools for biological studies. This review covers the achievements to date in the field of optical micromachines: improvements in the ability to produce micromachines, including multi-body microrobots; and design considerations for both optical microrobots and the optical trapping set-up used for controlling them are all discussed. The review focuses especially on the role of micromachines in biological research, and explores some of the potential that the technology has in this area.

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“…In order to achieve precise treatment of cancer, it is required that the nanoparticles are distributed at a reasonable time and space at the target site, so they can be efficiently taken up and released by the cells, which requires a reasonable construction of the delivery system to avoid multiple obstacles to transport to the tumor site. Self-propelled micro/ nanomotors, an emerging and powerful agent that is capable for effectively converting diverse energy sources into driving forces and autonomous movement [12][13][14][15][16][17][18][19][20], have gained considerable attention in the field of tumor diagnostics and treatment. Self-propelled micro/nanomotors not only inherit the excellent properties of micro/nanomaterials, such as high surface area and activity, but also demonstrate the distinct feature of autonomous motion capacity, which both results in highly efficient bioseparation and in precise delivery of imaging agents or drugs to the subcellular target in tumors [21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

A Review on Artificial Micro/Nanomotors for Cancer-Targeted Delivery, Diagnosis, and Therapy

et al. 2019

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HIGHLIGHTS• Recent advances of micro/nanomotors in the field of cancer-targeted delivery, diagnosis, and imaging-guided therapy are summarized.• Challenges and outlook for the future development of micro/nanomotors toward clinical applications are discussed.ABSTRACT Micro/nanomotors have been extensively explored for efficient cancer diagnosis and therapy, as evidenced by significant breakthroughs in the design of micro/nanomotors-based intelligent and comprehensive biomedical platforms. Here, we demonstrate the recent advances of micro/nanomotors in the field of cancer-targeted delivery, diagnosis, and imaging-guided therapy, as well as the challenges and problems faced by micro/nanomotors in clinical applications. The outlook for the future development of micro/nanomotors toward clinical applications is also discussed. We hope to highlight these new advances in micro/nanomotors in the field of cancer diagnosis and therapy, with the ultimate goal of stimulating the successful exploration of intelligent micro/nanomotors for future clinical applications.

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Light-Powered Micro/Nanomotors

Cited by 74 publications

References 110 publications

Light‐Controlled Micromotors and Soft Microrobots

Light‐Controlled Micromotors and Soft Microrobots

Optical Micromachines for Biological Studies

A Review on Artificial Micro/Nanomotors for Cancer-Targeted Delivery, Diagnosis, and Therapy

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