Results 91 to 100 of about 3,267 (215)

Can flocking aid the path planning of microswimmers in turbulent flows? [PDF]

The Physics of Fluids
We show that the flocking of microswimmers in a turbulent flow can enhance the efficacy of reinforcement-learning-based path planning of microswimmers in turbulent flows.
Akanksha Gupta, Jaya Kumar Alageshan, Kiran Venkata Kolluru, Rahul Pandit   +3 more
semanticscholar   +1 more source

From Passive to Active: Self‐Propelled Colloids in Coatings Formulation and Film Formation

Small, EarlyView.
Self‐propelled Janus colloids are introduced into coating formulations to overcome passive transport limitations during drying. Careful balance of particle activity and evaporation timescales results in their accumulation at both coating interfaces as well as an orientational bias at the top surface.
Karnika Singh, Jan Cammann, Luka Burduli, Edgar Espinosa Rodriguez, Franck D'Agosto, Muriel Lansalot, Ignacio Martin‐Fabiani   +6 more
wiley   +1 more source

Soft Spiral‐Shaped Microswimmers for Autonomous Swimming Control by Detecting Surrounding Environments

Advanced Intelligent Systems, 2020
In nature, most microorganisms have motility, which is essential for their survival or reproduction. To move, some microorganisms have evolved soft spiral‐shaped flagella, which rotate through specialized motors.
Koki Yoshida, Hiroaki Onoe
doaj   +1 more source

Fluid flow induced by helical microswimmers in bulk and near walls

Physical Review Research, 2022
Magnetic nano- and microswimmers provide a powerful platform to study driven colloidal systems in fluidic media and are relevant to futuristic medical technologies requiring precise yet minimally invasive motion control at small scales.
Malay Pal, Itzhak Fouxon, Alexander M. Leshansky, Ambarish Ghosh   +3 more
doaj   +1 more source

The control effort to steer self-propelled microswimmers depends on their morphology: comparing symmetric spherical versus asymmetric L-shaped particles

Royal Society Open Science, 2021
Active goal-directed motion requires real-time adjustment of control signals depending on the system’s status, also known as control. The amount of information that needs to be processed depends on the desired motion and control, and on the system’s ...
Julia M. Riede, Christian Holm, Syn Schmitt, Daniel F. B. Haeufle   +3 more
doaj   +1 more source

Liquid Crystal Polymers as Intrinsically Magnetic and Programmable Soft Materials for Microrobotics

Small, EarlyView.
Liquid crystal polymers (LCPs) are proposed as intrinsically magnetic, programmable, soft materials for microrobotics. Magnetic torque‐driven manipulation of LCP microobjects is achieved and characterized in terms of the step‐out frequency, reaching ∼0.6 Hz in a ∼250 mT magnetic field. The orientation of LCP microobjects in the magnetic field and their
Alexandra Gruzdenko, Ignacio Becerra Osorio, Max de Sain, Albert P. H. J. Schenning, Jaap M. J. den Toonder, Michael G. Debije   +5 more
wiley   +1 more source

Hydrodynamic instabilities in a two-dimensional sheet of microswimmers embedded in a three-dimensional fluid

Journal of Fluid Mechanics
A collection of microswimmers immersed in an incompressible fluid is characterised by strong interactions due to the long-range nature of the hydrodynamic fields generated by individual organisms.
V. Škultéty, Dóra Bárdfalvy, Joakim Stenhammar, C. Nardini, Alexander Morozov   +4 more
semanticscholar   +1 more source

Swimming Characteristics of Bioinspired Helical Microswimmers Based on Soft Lotus-Root Fibers

Micromachines, 2017
Various kinds of helical swimmers inspired by E. coli bacteria have been developed continually in many types of researches, but most of them are proposed by the rigid bodies.
Jia Liu, Tiantian Xu, Yanming Guan, Xiaohui Yan, Chengwei Ye, Xinyu Wu   +5 more
doaj   +1 more source

Activatable smart contrast agents for photoacoustic imaging

Smart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh, Jihye Lee, Suyoung Park, Juyoung Yoon, Won Jong Kim, Chulhong Kim   +5 more
wiley   +1 more source

Magnetic microswimmers with infrared‐induced shape transformation

Micro & Nano Letters, 2021
Soft untethered microswimmers have recently been demonstrated to be capable of transporting and delivering cargos by external control while maintaining biocompatibility and safety.
Runhuai Yang, Shilu Zhu, Lijiu Zhang, Fuzhou Niu, Shuang Liu   +4 more
doaj   +1 more source