Bioinspired Chemical Communication between Synthetic Nanomotors

Chen, Chuanrui; Chang, Xiaocong; Teymourian, Hazhir; Ramírez‐Herrera, Doris E.; Ávila, Berta Esteban‐Fernández de; Lu, Xiaolong; Li, Jinxing; He, Sha; Fang, Chengcheng; Liang, Yanyan; Mou, Fangzhi; Guan, Jianguo; Wang, Joseph

doi:10.1002/anie.201710376

Cited by 60 publications

(44 citation statements)

References 34 publications

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“…Inspired by the swimming strategies of natural microorganisms, various functional micro-/nanorobots, which are propelled by several external excitations (e.g. chemistry [32][33][34][35][36], light [37][38][39][40][41][42], magnetic [43][44][45][46][47][48][49][50][51], ultrasonic [13,[52][53][54] and electric [55]) have been developed in this decade. Among these propulsion methods, magnetic propulsion has been widely used to power the micro-and nanorobots due to its non-invasive remote actuation and convenient navigation abilities [56][57][58].…”

Section: Introductionmentioning

confidence: 99%

Self-Propelled Janus Microdimer Swimmers under a Rotating Magnetic Field

et al. 2019

Nanomaterials

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Recent strides in micro- and nanofabrication technology have enabled researchers to design and develop new micro- and nanorobots for biomedicine and environmental monitoring. Due to its non-invasive remote actuation and convenient navigation abilities, magnetic propulsion has been widely used in micro- and nanoscale robotic systems. In this article, a highly efficient Janus microdimer swimmer propelled by a rotating uniform magnetic field was investigated experimentally and numerically. The velocity of the Janus microdimer swimmer can be modulated by adjusting the magnetic field frequency with a maximum speed of 133 μm·s−1 (≈13.3 body length s−1) at the frequency of 32 Hz. Fast and accurate navigation of these Janus microdimer swimmers in complex environments and near obstacles was also demonstrated. This efficient propulsion behavior of the new Janus microdimer swimmer holds considerable promise for diverse future practical applications ranging from nanoscale manipulation and assembly to nanomedicine.

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Section: Introductionmentioning

confidence: 99%

Self-Propelled Janus Microdimer Swimmers under a Rotating Magnetic Field

et al. 2019

Nanomaterials

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“…Self‐propulsion of swimmers, which transform different types of energy into mechanical motion, has gained considerable interest in recent years . These devices enable interesting applications in drug delivery, cargo‐lifting, sensing, environmental remediation, lab‐on‐a‐chip devices (e.g., pumps or mixers) and as models to mimic and understand the collective behavior of microorganisms . Recently, a significant number of nano, micro and macro‐swimmers powered by the decomposition of “fuels” (e.g.…”

Section: Introductionmentioning

confidence: 99%

Chemo‐ and Magnetotaxis of Self‐Propelled Light‐Emitting Chemo‐electronic Swimmers

et al. 2020

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Miniaturized autonomous chemo-electronic swimmers,b ased on the coupling of spontaneous oxidation and reduction reactions at the two poles of light-emitting diodes (LEDs), are presented as chemotactica nd magnetotactic devices.I nh omogeneous aqueous media, random motion caused by ab ubble-induced propulsion mechanism is observed. However,ina ninhomogeneous environment, the selfpropelled devices exhibit positive chemotactic behavior,p ropelling themselves along apHorionic strength gradient (rpH and rI, respectively) in order to reach at hermodynamically higher active state.I na ddition, the intrinsic permanent magnetic moment of the LED allows self-orientation in the terrestrial magnetic field or following other external magnetic perturbations,w hiche nables ad irectional motion control coupled with light emission. The interplay between chemotaxis and magnetotaxis allows fine-tuning of the dynamic behavior of these swimmers.

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“…[1][2][3][4][5][6] Suspensions of spermatozoa, [7][8][9] algae, [10][11][12][13] and bacteria [14][15][16][17][18][19][20][21] have been investigated extensively not only to recognize novel effects of non-equilibrium physics under conditions of low Reynolds number but also to attain possible controls over various biological processes involving ab road variety of molecular motors and proteins.T he pursuit has further been augmented by the development of model systems comprised of chemically active motors and molecules. [22][23][24][25][26][27][28][29][30][31] These systems offer unprecedented opportunities to understand local energy transduction in colloidal systems and explore possibilities to harness non-equilibrium phenomena for useful applications.I nr ecent years,r esearch in this direction has resulted in many interesting designs and propulsion strategies for artificial micro-and nanomachines-with demonstrations on their futuristic applications as sensors, [32][33][34][35] assemblers, [36][37][38][39] and fluid pumps. [40][41][42]…”

Section: Introductionmentioning

confidence: 99%

Dynamic Coupling at Low Reynolds Number

Dey

2019

Angew Chem Int Ed

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Collective and emergent behaviors of active colloidal assemblies provide useful insights into the statistical physics of out-of-equilibrium systems. Colloidal suspensions containing microscopic active swimmers have recently been studied with much vigor to understand principles of energy transfer at low Reynolds number conditions. Using molecules of active enzymes and ångström sized organometallic catalysts it has further been demonstrated that energy can be transferred even by molecules to their surroundings, influencing substantially the overall dynamics of the systems. Monitoring the diffusion of non-reacting tracers dispersed in active solutions, it has been shown that the nature of energy transfer in systems containing different swimmers is surprisingly similar - irrespective of their differences in sizes, modes of energy transduction and propulsion strategies. These observations provide motivation not only to characterize reaction generated force fields under complex fluidic environment but also to look for possible similarity in their behavior across multiple length scales. This review discusses research results obtained so far in this direction, highlighting the common features observed regarding dynamic coupling of swimmers with their surroundings. Activity-induced force generation and its collective effects are expected to find wide importance in transport and organization of materials at smaller length scales. Underscoring the nature of reaction generated perturbations, especially under crowded cytosolic conditions, is further likely to advance our knowledge of intracellular mechanics of small molecules during various metabolic processes and chemical transformations.

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Bioinspired Chemical Communication between Synthetic Nanomotors

Cited by 60 publications

References 34 publications

Self-Propelled Janus Microdimer Swimmers under a Rotating Magnetic Field

Self-Propelled Janus Microdimer Swimmers under a Rotating Magnetic Field

Chemo‐ and Magnetotaxis of Self‐Propelled Light‐Emitting Chemo‐electronic Swimmers

Dynamic Coupling at Low Reynolds Number

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