Results 51 to 60 of about 893 (178)

Precise Localization and Control of Catalytic Janus Micromotors Using Weak Magnetic Fields [PDF]

, 2015
We experimentally demonstrate the precise localization of spherical Pt-Silica Janus micromotors (diameter 5 μm) under the influence of controlled magnetic fields. First, we control the motion of the Janus micromotors in two-dimensional (2D) space.
Khalil, Islam S. M., Magdanz, Veronika, Misra, Sarthak, Sanchez, Samuel, Schmidt, Oliver G.   +4 more
core   +1 more source

Buoyant force-induced continuous floating and sinking of Janus micromotors

RSC Advances, 2018
Novel bubble-induced ultrafast moving of micromotors based on the difference between buoyant force and gravity is proposed.
Meisheng Wu, Yuki Koizumi, Hiroki Nishiyama, Ikuyoshi Tomita, Shinsuke Inagi   +4 more
openaire   +3 more sources

Nanomaterial-decorated micromotors for enhanced photoacoustic imaging [PDF]

, 2023
Micro-and nanorobots have the potential to perform non-invasive drug delivery, sensing, and surgery in living organisms, with the aid of diverse medical imaging techniques.
Aziz, Azaam, Liz-Marzán, Luis M., Ma, Libo, Medina-Sánchez, Mariana, Nauber, Richard, Schmidt, Oliver G., Sánchez Iglesias, Ana, Tang, Min   +7 more
core   +2 more sources

On–Off Switchable Micromotors for Use in Steerable Microvehicles

Advanced Robotics Research, EarlyView.
Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson, Eswaran Murugasen, Jose G. Martinez, Edwin W. H. Jager   +3 more
wiley   +1 more source

Hydrogel‐Based Janus Micromotors Capped with Functional Nanoparticles for Environmental Applications [PDF]

Advanced Materials Technologies, 2020
AbstractJanus nano/micromotors have been developed into various sizes, shapes, and functions for a blaze of applications especially in biomedical and environmental fields. Here, a fabrication method of Janus micromotors is reported by capping hydrogel microspheres with functional nanoparticles (NPs).
Lin, X., Zhu, H., Zhao, Z., You, C., Kong, Y., Zhao, Y., Liu, J., Chen, H., Shi, X., Makarov, D., Mei, Y.   +10 more
openaire   +1 more source

Coalescence of microbubbles for the double-bubble-powered micromotor in viscous liquids near a confinement boundary

Flow
As a novel type of catalytic Janus micromotor (JM), a double-bubble-powered Janus micromotor has a distinct propulsion mechanism that is closely associated with the bubble coalescence in viscous liquids and corresponding flow physics. Based on high-speed
Leilei Wang, Fengchang Yang, Lina Wang, Li Chen, Minghua Huang, Dongshi Guan, Haihang Cui, Xu Zheng   +7 more
doaj   +1 more source

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

Sensitive monitoring of enterobacterial contamination of food using self-propelled Janus microsensors [PDF]

, 2018
Food poisoning caused by bacteria is a major cause of disease and death worldwide. Herein we describe the use of Janus micromotors as mobile sensors for the detection of toxins released by enterobacteria as indicators of food contamination.
Escarpa Miguel, Jesús Alberto, Jurado Sánchez, Beatriz, Pacheco Jerez, Marta   +2 more
core   +1 more source

Engineering transient dynamics of artificial cells by stochastic distribution of enzymes [PDF]

, 2021
Here the authors develop a coacervate micromotor that can display autonomous motion as a result of stochastic distribution of propelling units. This stochastic-induced mobility is validated and explained through experiments and theory.
Abdelmohsen, Loai K. E. A., Cao, Shoupeng, De Corato, Marco, Mason, Alexander F., Mestre, Rafael, Post, Richard A.J., Song, Shidong, Sánchez, Samuel, Van der Hofstad, Remco W., van Hest, Jan C.M., Yewdall, N. Amy   +10 more
core   +2 more sources

Thermometric Based‐Microswimmers with Chemical and Optical Engines

Advanced Intelligent Systems, EarlyView.
Temperature sensing at small scales is typically performed using passive luminescent particles. Here, an alternative approach is demonstrated by integrating upconversion thermometry into self‐propelled microswimmers powered by chemical fuels or light. This strategy offers a step toward dynamic thermal sensing at the microscale, relevant to both lab‐on ...
João M. Gonçalves, Katherine Villa
wiley   +1 more source