Polydimethylsiloxane Fluidic Device with Polydopamine-Coated Inner Channel for Production of Uniform Droplets

2016 ◽  
Vol 301 (9) ◽  
pp. 1044-1048 ◽  
Author(s):  
Dae-Ryong Jun ◽  
Yu Ri Choi ◽  
Rae Hyung Kang ◽  
Sung-Wook Choi
Keyword(s):  
Fluidic Device ◽  
Uniform Droplets ◽  
Inner Channel

Continuous flow photolytic reduction of graphene oxide

2019 ◽  
Vol 55 (76) ◽  
pp. 11438-11441 ◽  
Author(s):  
Thaar M. D. Alharbi ◽  
Amira R. M. Alghamdi ◽  
Kasturi Vimalanathan ◽  
Colin L. Raston
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Continuous Flow ◽  
Reducing Agents ◽  
Reduced Graphene ◽  
Fluidic Device

Reduced graphene oxide (rGO) is generated from GO dispersed in water under continuous flow in the absence of harsh reducing agents, in a vortex fluidic device, such that the processing is scalable with uniformity of the product.

Correction pen based paper fluidic device for the detection of multiple gene targets of Leptospira using Loop Mediated Isothermal Amplification

2020 ◽  
Vol 174 ◽  
pp. 105962
Author(s):  
Venkatesh Varsha ◽  
Sitaraman Aishwarya ◽  
Sarma Murchana ◽  
Gattuboyena Naveen ◽  
Mohandass Ramya ◽  
...  
Keyword(s):  
Isothermal Amplification ◽  
Multiple Gene ◽  
Loop Mediated Isothermal Amplification ◽  
Fluidic Device

scholarly journals Production of uniform droplets using membrane, microchannel and microfluidic emulsification devices

2012 ◽  
Vol 13 (1) ◽  
pp. 151-178 ◽  
Author(s):  
G. T. Vladisavljević ◽  
Isao Kobayashi ◽  
Mitsutoshi Nakajima
Keyword(s):  
Uniform Droplets

Influence of the configuration of the submerged entry nozzle inner channel and electromagnetic effect within its length on the qualitative distribution of metal flows during continuous casting of steel

2021 ◽  
pp. 17-22
Author(s):  
A. Yu. Tretyak ◽  
◽  
Qiang Wang ◽  
Chun-Lei Wu ◽  
E. I. Shifrin ◽  
...  
Keyword(s):  
Quality Control ◽  
Continuous Casting ◽  
Submerged Entry Nozzle ◽  
Electromagnetic Stirring ◽  
Continuous Casting Of Steel ◽  
Electromagnetic Effect ◽  
Inner Surface ◽  
Continuously Cast ◽  
Inner Channel ◽  
Research Show

Today, the most promising and effective method of quality control of the continuously cast billets is electromagnetic stirring of the melt. In this case, an important component is the effect of the stirring on the jet in the nozzle. Moreover, as research has shown, this method is highly dependent on the configuration of the inner channel of the nozzle. Research have shown that positive or negative taper of the inner surface of the nozzle allows to obtain different results after applying EMS. Taper control completely changes the pattern of the melt flow and its deceleration in the mold, especially when it is casting of large billets. The results of the research show that minor changes in the taper of the nozzle significantly increase the effect of EMS implementation, which is observed already at 0.27 % of positive the taper and increases to 0.54%.

Fluid Manipulation by Bio-Mimetic Cilia

2007 ◽  
Author(s):  
Kieseok Oh ◽  
Jae-Hyun Chung ◽  
Santosh Devasia ◽  
James J. Riley
Keyword(s):  
Aspect Ratio ◽  
Lead Zirconate Titanate ◽  
High Aspect Ratio ◽  
Small Volume ◽  
Lead Zirconate ◽  
Maximum Displacement ◽  
Assembly Method ◽  
Fluidic Device ◽  
Structure Assembly ◽  
Fluid Manipulation

This paper describes the fabrication and actuation of bio-mimetic cilia for fluid manipulation. High aspect ratio cilia made of polydimethylsiloxane (PDMS) were successfully assembled in a microfluidic device by our novel fabrication method. This method was to release the PDMS cilia from a Si mold and assemble the cilia in a device. All the process was performed under water in order to avoid the stiction and pairing of the PDMS cilia. The underwater assembly method enabled a high aspect ratio PDMS structure assembly in a fluidic device. The PDMS cilia were actuated in air and water by lead-zirconate-titanate (PZT) microstage. In the fabricated device, the maximum displacement of the cilia was observed at 120Hz in air and at 50Hz in de-ionized (DI) water with our experimental condition. The actuated cilia in a solution produced convective and propulsive fluid flow near the cilia structure. The developed device can be used for precise handling of small volume sample (e.g., 1 μL).

scholarly journals Theoretical Modeling, Design and Simulation of an Innovative Diverting Valve Based on Coanda Effect

Fluids ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 103
Author(s):  
Giancarlo Comes ◽  
Carlo Cravero
Keyword(s):  
Fluid Dynamics ◽  
Mathematical Model ◽  
Computational Fluid Dynamics ◽  
Additive Manufacturing ◽  
Water Flow ◽  
Coanda Effect ◽  
Geometrical Parameters ◽  
Convex Wall ◽  
Fluidic Device ◽  
Coandǎ Effect

The present work is focused on the study of an innovative fluidic device. It consists of a two-ways diverter valve able to elaborate an inlet water flow and divert it through one of the two outlets without moving parts but as a result of a fluctuation of pressure induced by two actuation ports, or channels. Such apparatus is named Attachment Bi-Stable Diverter (ABD) and is able to work with the effect of the fluid adhesion to a convex wall adjacent to it, this phenomenon is known as Coanda Effect; it generates the force responsible for the fluid attachment and the consequent deviation. The main purpose of this work is to develop a knowhow for the design and development of such particular device. A mathematical model for the ABD has been developed and used to find the relationships between the geometrical parameters and the operative conditions. A configuration has been designed, simulated with a computational fluid dynamics approach. A prototype has been printed with and additive manufacturing printer and tested in laboratory to check the effective working point of the device.

A fluidic device to study directional angiogenesis in complex tissue and organ culture models

Lab on a Chip ◽  
2009 ◽  
Vol 9 (4) ◽  
pp. 529-535 ◽  
Author(s):  
Irmeli Barkefors ◽  
Sara Thorslund ◽  
Fredrik Nikolajeff ◽  
Johan Kreuger
Keyword(s):  
Organ Culture ◽  
Tissue And Organ Culture ◽  
Fluidic Device ◽  
Culture Models

Towards New Methodologies for Manipulation of Colloidal Particles in a Miniaturized Fluidic Device: Optoelectrokinetic Manipulation Technique

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
Jae-Sung Kwon ◽  
Steven T. Wereley
Keyword(s):  
Microfluidic Chip ◽  
Colloidal Particles ◽  
Future Prospects ◽  
Simultaneous Application ◽  
Laser Illumination ◽  
Research Fields ◽  
Ac Electric Field ◽  
Fluidic Device ◽  
New Methodologies ◽  
Rapid Electrokinetic Patterning

The rapid electrokinetic patterning (REP) technique developed recently is a hybrid optoelectrokinetic one that manipulates micro- or nanocolloids in a microfluidic chip using the simultaneous application of a uniform ac electric field and laser illumination. Since its invention, the technique has been applied to many research fields with promising potential, but these applications are still in their early stages. In order to effectively complete and leverage the applications, this paper reviews the publications concerning the REP technique and discusses its underlying principles, applications, and future prospects.

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