Results 51 to 60 of about 1,413 (213)

Magnetically Actuated Colloidal Microswimmers

open access: yesThe Journal of Physical Chemistry B, 2008
To achieve permanent propulsion of micro-objects in confined fluids is an elusive but challenging goal that will foster future development of microfluidics and biotechnology. Recent attempts based on a wide variety of strategies are still far from being able to design simple, versatile, and fully controllable swimming engines on the microscale. Here we
Tierno, P.   +3 more
openaire   +4 more sources

Pseudochemotactic drifts of artificial microswimmers [PDF]

open access: yesPhysical Review E, 2015
6 ...
Ghosh, Pulak K.   +3 more
openaire   +4 more sources

Geometric Methods for Efficient Planar Swimming of Copepod Nauplii

open access: yesMicromachines, 2021
Copepod nauplii are larval crustaceans with important ecological functions. Due to their small size, they experience an environment of low Reynolds number within their aquatic habitat.
Corey Shanbrom   +3 more
doaj   +1 more source

Microswimmer-Based Ultrasensitive Dual-Signal Ratiometric Electrochemical Homogeneous Aptasensor with Functionalized Co-UiO-66 for the Single-Step Detection of HER2 in Whole Blood

open access: yes, 2023
The ability to efficiently detect trace disease biomarkers in whole blood remains an enormous challenge. Researchers have paid more attention to the homogeneous electrochemical ratio biosensor due to its self-calibration capability and improved detection
Mei Yang (51996)   +7 more
core   +1 more source

Anisotropic mesoscale turbulence and pattern formation in microswimmer suspensions induced by orienting external fields [PDF]

open access: yes, 2022
This paper studies the influence of orienting external fields on pattern formation, particularly mesoscale turbulence, in microswimmer suspensions. To this end, we apply a hydrodynamic theory that can be derived from a microscopic microswimmer model ...
Klapp, Sabine H. L.   +3 more
core   +1 more source

Integrated Microfluidic–Electromagnetic System to Probe Single-Cell Magnetotaxis in Microconfinement

open access: yesBioengineering, 2023
Magnetotactic bacteria have great potential for use in biomedical and environmental applications due to the ability to direct their navigation with a magnetic field.
Brianna Bradley   +2 more
doaj   +1 more source

Miniaturization effect of electroosmotic self-propulsive microswimmer powered by biofuel cell

open access: yesROBOMECH Journal, 2019
For future medical microrobotics, we have proposed the concept of the electroosmotic self-propulsive microswimmer powered by biofuel cell. According to the derived theoretical model, its self-propulsion velocity is inversely proportional to the length of
Toshiro Yamanaka, Fumihito Arai
doaj   +1 more source

High-speed motility originates from cooperatively pushing and pulling flagella bundles in bilophotrichous bacteria

open access: yeseLife, 2020
Bacteria propel and change direction by rotating long, helical filaments, called flagella. The number of flagella, their arrangement on the cell body and their sense of rotation hypothetically determine the locomotion characteristics of a species.
Klaas Bente   +7 more
doaj   +1 more source

Microswimmer trapping in surface waves with shear [PDF]

open access: yes, 2023
Many species of phytoplankton migrate vertically near the surface of the ocean, either in search of light or nutrients. These motile organisms are affected by ocean waves at the surface.
Pujara, Nimish   +5 more
core   +1 more source

A frictionless microswimmer

open access: yesNew Journal of Physics, 2007
We investigate the self-locomotion of an elongated microswimmer by virtue of the unidirectional tangential surface treadmilling. We show that the propulsion could be almost frictionless, as the microswimmer is propelled forward with the speed of the backward surface motion, i.e. it moves throughout an almost quiescent fluid.
Leshansky, Alexander M.   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy