microfluidic system – TechConnect Briefs

Fabrication of Active Digital Microfluidic Paper Chips with Inkjet-printed Patterned Electrodes and their Point-of Care Biomedical Application

Ko H., Lee J., Kim K., Kim Y., Kee Y., Kim K., Kim Y., Jung C-H, Choi J-H, Kwon O-S, Shin K., Sogang University, KR

Active, paper-based, microfluidic chips driven by electrowetting are fabricated by using inkjet printing and demonstrated for reagent transport and mixing. Instead of using the passive capillary force on the pulp to actuate a flow of [...]

Fabrication of PEG Hydrogel Microstructures in Microfluidic System for Multicellular Spheroid Formation, Culturing and Analysis

Fu C.-Y., Chang H.-Y., National Tsing Hua University, TW

In this abstract, we describe a novel PEG-based, simple-to-fabricate, U-shaped micro-scale growth chamber, which allows cell trapping and forming into spheroids as well as culturing in the presence of a continuous perfusion flow, a long-term [...]

Numerical Study on the Mixing Performance of Ring-Type Electroosmotic Micromixer with Configurations of Obstacle in the Mixing Chamber

Seo H.S., Kim Y.J., Sungkyunkwan University, KR

Rapid and efficient mixing is important for many microfluidic applications but challenging process in many microfluidic systems that perform complex chemical synthesis and analysis. Most existing microfluidic mixing systems are limited to low Reynolds number [...]

Fabrication of Magnetic Poly (ethylene glycol) Hydrogels Blocks Using Microfluidic System for Cell Patterning Techniques

Chang H.-Y., Fu C.-Y., Lin C.Y., Wang T.-P., National Tsing Hua University, TW

In this study, we developed a novel technique called magnetic hydrogel-based cell patterning (MHCP) to easily achieve heterotypic cell patterning in both of multi-well plate-based methods and microfluidic system. We also demonstrated that the material [...]

A Microfluidic System with Nonenzymatic Glucose Sensor

Joo S., Park S., Lim H., Chung T.D., Kim H-C, Seoul National University, KR

In this paper, we report an amperometric-type enzymeless glucose sensor system based on nanoporous platinum (Pt) and platinum/platinum oxide (Pt/PtO) reference electrode, which are integrated with microfluidic chip. Glucose sensor employing no enzyme implies a [...]

Forisomes: Mechano-Proteins that Exert Force in Contraction and Expansion

Knoblauch M., Noll G.A., Prüfer D., Jaag H., Fontanellaz M.E., Schneider-Hüther I., van Bel A.J.E., Peters W.S., Fraunhofer Institute IME, DE

Motor-proteins are the basis of the dynamic three dimensional organization of the living cell. Most motor-proteins are driven by energetically favorable reactions such as ATP hydrolysis. We here describe anisotropic contractility in forisomes, protein bodies [...]

Modelling Free Jet Ejection on a System Level – An approach for microfluidics

Koltay P., Moosmann C., Litterst C., Streule W., Birkenmeier B., Zengerle R., University of Freiburg, DE

Fast simulation of complex microfluidic systems requires consideration of network simulations based on lumped models as an alternative to standard computational fluid dynamic (CDF) simulations. In this paper we describe an analytical model of an [...]