Results 31 to 40 of about 3,147 (162)

Sorting of chiral microswimmers [PDF]

open access: yes, 2013
Microscopic swimmers, e.g., chemotactic bacteria and cells, are capable of directed motion by exerting a force on their environment. For asymmetric microswimmers, e.g., bacteria, spermatozoa and many artificial active colloidal particles, a torque is ...
Volpe, G.   +3 more
core   +1 more source

Nanoerythrosome-functionalized biohybrid microswimmers

open access: yesAPL Bioengineering, 2020
Biohybrid microswimmers, which are realized through the integration of motile microscopic organisms with artificial cargo carriers, have a significant potential to revolutionize autonomous targeted cargo delivery applications in medicine.
Nicole Buss   +4 more
doaj   +1 more source

Suppression of bacterial rheotaxis in wavy channels

open access: yesPhysical Review Research, 2022
Controlling the swimming behavior of bacteria is crucial, for example, to prevent contamination of ducts and catheters. We show that bacteria modeled by deformable microswimmers can accumulate in flows through straight microchannels either in their ...
Winfried Schmidt   +2 more
doaj   +1 more source

Active percolation in pusher-type microswimmers

open access: yes, 2022
The aggregation of microorganisms in colonies and biofilms underpins a myriad of biological processes, and has crucial implications in ecology and biomedical sciences.
Fabian Jan Schwarzendahl (11552473)   +1 more
core   +4 more sources

Coarse Graining Nonisothermal Microswimmer Suspensions

open access: yesFrontiers in Physics, 2021
We investigate coarse-grained models of suspended self-thermophoretic microswimmers. Upon heating, the Janus spheres, with hemispheres made of different materials, induce a heterogeneous local solvent temperature that causes the self-phoretic particle ...
Sven Auschra   +4 more
doaj   +1 more source

Video1_Magnetically-actuated hydrogel-based achiral planar microswimmers for SERS detection: In situ coprecipitation for continuous loading of iron oxide nanoparticles.mp4

open access: yes, 2023
Ultraviolet lithography is a very promising technology used for the batch fabrication of biomedical microswimmers. However, creating microswimmers that can swim at low Reynolds number using biocompatible materials while retaining strong magnetic ...
Junfeng Xiong (11157522)   +5 more
core   +1 more source

Theoretical framework for two-microswimmer hydrodynamic interactions

open access: yesNew Journal of Physics, 2021
Hydrodynamic interactions are crucial for determining the cooperative behavior of microswimmers at low Reynolds numbers. Here we provide a comprehensive analysis of the scaling laws and the strength of the interactions in the case of a pair of three ...
Sebastian Ziegler   +4 more
doaj   +1 more source

A Path toward Inherently Asymmetric Micromotors

open access: yesAdvanced Intelligent Systems, 2023
Since the highly cited paper by Purcell postulating the “Scallop theorem” almost 50 years ago, asymmetry is an unavoidable part of micromotors. It is frequently induced by self‐shadowing or self‐masking, resulting in so‐called Janus colloids.
Purnesh Chattopadhyay   +3 more
doaj   +1 more source

Rapid fabrication of reconfigurable helical microswimmers with environmentally adaptive locomotion

open access: yesLight: Advanced Manufacturing
Artificial helical microswimmers with shape-morphing capacities and adaptive locomotion have great potential for precision medicine and noninvasive surgery.
Rui Li   +11 more
doaj   +1 more source

Microbial Adhesion on Circular Obstacles: An Optimization Study

open access: yesFrontiers in Physics, 2022
Microbial filtration is an important process with applications in environmental, mining, and sanitary engineering. Here, we study the interplay between the motility of microswimmers and the imposed flow to determine the adhesion of bacteria at the ...
Tamara Faúndez   +3 more
doaj   +1 more source

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