microchannels

High-throughput viscoelastic characterization of cells in hyperbolic microchannels

Lab Chip, 2024, Advance Article
DOI: 10.1039/D3LC01061A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Felix Reichel, Ruchi Goswami, Salvatore Girardo, Jochen Guck
We use hyperbolic microchannels to create a flow field with linearly increasing velocity, leading to a constant tensile stress to probe the viscoelastic properties of cells. We verify our approach on oil droplets and polyacrylamide beads.
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microchannels

Motion of microswimmers in cylindrical microchannels

Soft Matter, 2024, 20,3007-3020
DOI: 10.1039/D3SM01480K, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Florian A. Overberg, Gerhard Gompper, Dmitry A. Fedosov
Microswimmers in confinement slow down, and can exert pulling or pushing forces in particular at the end of a closed channel. Simulations and approximate theoretical calculation for the squirmer model are employed to predict this behavior.
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microchannels

Polyethylene fibers containing directional microchannels for passive radiative cooling

Mater. Horiz., 2024, 11,1787-1796
DOI: 10.1039/D3MH01881D, Communication
Mengxia Sun, Fei Peng, Shanshan Xu, Xianhu Liu, Kun Dai, Guoqiang Zheng, Chuntai Liu, Changyu Shen
The fabric woven by polyethylene fiber containing directional microchannels has excellent radiative cooling and self-cleaning property. Therefore, PFCDM fabric shows huge potential in the field of radiative cooling and human thermal management.
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microchannels

OPERATION OF DIAGNOSTIC DEVICES INVOLVING MICROCHANNELS AND ELECTRODES

An assembly is provided for interfacing with a microfluidic chip having at least one microscopic channel configured to receive a liquid sample for analysis. The assembly includes a chip carrier, an electronics module, an optical module, and a mechanical module. The chip carrier includes a base and a cover defining a cavity to receive the microfluidic chip. The electronics module includes a signal generator which applies at least one electrokinetic signal electrode(s) of the chip. The optical module includes an excitation radiation source which causes excitation radiation to impinge on the sample, and an emission radiation detector which detects radiation emitted from the sample. The mechanical module includes a chip-carrier receiving structure, relatable with respect to the optical module for focus and at least one degree of translational freedom.




microchannels

COOLING OF ELECTRONICS USING FOLDED FOIL MICROCHANNELS

Embodiments are generally directed to cooling of electronics using folded foil microchannels. An embodiment of an apparatus includes a semiconductor die; a substrate, the semiconductor die being coupled with the substrate; and a cooling apparatus for the semiconductor die, wherein the cooling apparatus includes a folded foil preform, the folded foil forming a plurality of microchannels, and a fluid coolant system to direct a fluid coolant through the microchannels of the folded foil.




microchannels

Correction: Deformability-induced lift force in spiral microchannels for cell separation

Lab Chip, 2020, Advance Article
DOI: 10.1039/D0LC90036B, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Ewa Guzniczak, Oliver Otto, Graeme Whyte, Nicholas Willoughby, Melanie Jimenez, Helen Bridle
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microchannels

Catalytic exchange of hydrogen isotopes intensified by two-phase stratified flow in wettability designable microchannels

Lab Chip, 2020, Accepted Manuscript
DOI: 10.1039/D0LC00250J, Paper
Yuexiao Song, Feng Xin, Yongsheng Xu
This work develops a reliable method to achieve stratified flow in squared cross-section microchannels by endowing the four channel walls with very different wettabilities. The gas–liquid flows are studied experimentally...
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microchannels

Monitoring the two-dimensional concentration profile of toluene vapors by using polymer-stabilized nematic liquid crystals in microchannels

Lab Chip, 2020, 20,1687-1693
DOI: 10.1039/C9LC01021A, Paper
Zongdai Liu, Dan Luo, Kun-Lin Yang
The concentration of toluene vapor is obtained based on polymer-stabilized liquid crystals by viewing a colourful gamut under a polarized optical microscope.
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microchannels

Numerical simulation of steady state and transient heat transfer in microchannels