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HomeAuthorsOh K.W.

Authors: Oh K.W.

A compact syringe-assisted vacuum-driven micropumping with a constant flow rate

Wang A., Koh D., Schneider P., Oh K.W., University at Buffalo, US
Abstract In this paper, a simple syringe-assisted pumping method was introduced. Compared with previous study [1], the proposed design does not require pre-designed vacuum chambers, the multiple pumps can be integrated into one device and [...]

3-D electrode configuration for electrochemical impedance spectroscopy of bulk solution

Wang A., Koh D., Schneider P., Oh K.W., University at Buffalo, US
Abstract In this paper, a 3-D electrode configuration for electrochemical impedance spectroscopy (EIS) of a bulk solution was studied. Top- and bottom- electrode configuration, where two electrodes sandwich the sensing channel, was fabricated using the [...]

Microfluidics for multiplexing of core needle biopsies

Mojica W.D., Oh K.W., Lee H., Xue X., Furlani E.P., University at Buffalo, US
Image guided biopsies for the procurement of diagnostic tissue has proven to be safe, cost effective and useful. However, the amount of tissue obtained is often diminutive and may be exhausted for conventional diagnostic purposes. [...]

A Simple Method for Fabrication of Microarrays and Microfluidic Device Using PDMS Stamp

Lee H., Koh D., Oh K.W., SUNY at Buffalo, US
We describe a simple micro-fabrication method by using polydimethylsiloxane (PDMS) stamp on a glass substrate. While the microwells used previously facilitated the cell-to-cell formation by PDMS stamping method, not only should it be carefully controlled [...]

Microfluidics for multiplexing of core needle biopsies

Mojica W.D., Oh K.W., Lee H., Xue X., Furlani E.P., University at Buffalo, US
Image guided biopsies for the procurement of diagnostic tissue has proven to be safe, cost effective and useful. However, the amount of tissue obtained is often diminutive and may be exhausted for conventional diagnostic purposes. [...]

A Simple Method for Fabrication of Microarrays and Microfluidic Device Using PDMS Stamp

Lee H., Koh D., Oh K.W., SUNY at Buffalo, US
We describe a simple micro-fabrication method by using polydimethylsiloxane (PDMS) stamp on a glass substrate. While the microwells used previously facilitated the cell-to-cell formation by PDMS stamping method, not only should it be carefully controlled [...]

A Simple and Robust Fabrication of Microwell Array by Pdms on a Glass Substrate for Cell-To-Cell Adhesion

Lee H., Row S., Xu L., Andreadis S.T., Oh K.W., SUNY at Buffalo, US
We describe a simple micro-fabrication method by using polydimethylsiloxane (PDMS) patterns on a glass substrate that enables simultaneous control of cell-to-cell adhesion. While the microwells used previously facilitated the cell-to-cell formation by PDMS stamping method, [...]

A Microfluidic Platform for Parallel Synchronization of Multiple Droplets by Ladder-Like Fluidic Network

Lee H., Xu L., Oh K.W., SUNY at Buffalo, US
We present a method for a parallel synchronization of multiple droplets with different concentrations in a continuous flow manner. Our previous device was modified (e.g., a synchronized droplet pairing (n=2) using a ladder-like fluidic network) [...]

Syringe-Assisted Point-Of-Care Pumping

Xu L., Lee H., Oh K.W., SUNY at Buffalo, US
By utilizing the high gas permeability of PDMS, a simple syringe-assisted micropumping method is presented. A constant, controllable pumping rate ranging from 0.3 to 4 nl/s was achieved by controlling the gap distance (g) and [...]

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