Electrokinetics in Microfluidic Channels Containing a Floating Electrode

2008 ◽  
Vol 130 (32) ◽  
pp. 10480-10481 ◽  
Author(s):  
Rahul Dhopeshwarkar ◽  
Dzmitry Hlushkou ◽  
Mark Nguyen ◽  
Ulrich Tallarek ◽  
Richard M. Crooks
Lab on a Chip ◽  
2011 ◽  
Vol 11 (12) ◽  
pp. 1995 ◽  
Author(s):  
Loes I. Segerink ◽  
Ad J. Sprenkels ◽  
Johan G. Bomer ◽  
Istvan Vermes ◽  
Albert van den Berg

2021 ◽  
Vol 141 (1) ◽  
pp. 21-26
Author(s):  
Hideaki Fukuda ◽  
Kenta Yamamura ◽  
Issei Fujita ◽  
Ryutaro Kusa ◽  
Yasushi Yamano

2015 ◽  
Vol 135 (3) ◽  
pp. 114-115 ◽  
Author(s):  
Ryoto Sato ◽  
Daisuke Yasumatsu ◽  
Shinya Kumagai ◽  
Masaru Hori ◽  
Minoru Sasaki

Equipment ◽  
2006 ◽  
Author(s):  
C. Yang ◽  
G. Y. Tang ◽  
D. G. Yan ◽  
H. Q. Gong ◽  
John C. Chai ◽  
...  

2020 ◽  
Author(s):  
Xinkai Qiu ◽  
Sylvia Rousseva ◽  
Gang Ye ◽  
Jan C. Hummelen ◽  
Ryan Chiechi

This paper describes the reconfiguration of molecular tunneling junctions during operation via the self-assembly of bilayers of glycol ethers. We use well-established functional groups to modulate the magnitude and direction of rectification in assembled tunneling junctions by exposing them to solutions containing different glycol ethers. Variable-temperature measurements establish that rectification occurs by a bias-dependent tunneling-hopping mechanism and that glycol ethers, beside being an unusually efficient tunneling medium, behave identically to alkanes. We fabricated memory bits from crossbar junctions prepared by injecting eutectic Ga-In into microfluidic channels. Two 8-bit registers were able to perform logical AND operations on bit strings encoded into chemical packets as microfluidic droplets that alter the composition of the crossbar junctions through self-assembly to effect memristor-like properties. This proof of concept work demonstrates the potential for fieldable molecular-electronic devices based on tunneling junctions of self-assembled monolayers and bilayers.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Semra Zuhal Birol ◽  
Rana Fucucuoglu ◽  
Sertac Cadirci ◽  
Ayca Sayi-Yazgan ◽  
Levent Trabzon

AbstractAtherosclerosis is a long-term disease process of the vascular system that is characterized by the formation of atherosclerotic plaques, which are inflammatory regions on medium and large-sized arteries. There are many factors contributing to plaque formation, such as changes in shear stress levels, rupture of endothelial cells, accumulation of lipids, and recruitment of leukocytes. Shear stress is one of the main factors that regulates the homeostasis of the circulatory system; therefore, sudden and chronic changes in shear stress may cause severe pathological conditions. In this study, microfluidic channels with cavitations were designed to mimic the shape of the atherosclerotic blood vessel, where the shear stress and pressure difference depend on design of the microchannels. Changes in the inflammatory-related molecules ICAM-1 and IL-8 were investigated in THP-1 cells in response to applied shear stresses in an continuous cycling system through microfluidic channels with periodic cavitations. ICAM-1 mRNA expression and IL-8 release were analyzed by qRT-PCR and ELISA, respectively. Additionally, the adhesion behavior of sheared THP-1 cells to endothelial cells was examined by fluorescence microscopy. The results showed that 15 Pa shear stress significantly increases expression of ICAM-1 gene and IL-8 release in THP-1 cells, whereas it decreases the adhesion between THP-1 cells and endothelial cells.


2021 ◽  
Vol 25 (1) ◽  
Author(s):  
Dandara Velasco Anez ◽  
Celine Hadji ◽  
Enric Santanach-Carreras ◽  
Elise Lorenceau ◽  
Cyril Picard

Author(s):  
Keyu Han ◽  
Zubin Wang ◽  
Liping Heng ◽  
Lei Jiang

Intelligent responsive slippery surfaces with adjustable wettability present considerable significance in a broad range of fundamental research and application realms including microfluidic channels, microreactions, and liquid directional-conveying devices. Although considerable...


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