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HomeAuthorsOh K.W.

Authors: Oh K.W.

Flexible Microfluidics-Integrated Organic Transistor as Biofeedback for Advanced Wound Healing

Heidrich J., Oh K.W., The State University of New York at Buffalo, US
This paper will discuss how incorporating a biofeedback sensor into an electrical stimulation bandage used on chronic ulcers will improve the healing process. Current wound healing devices, and specifically wearable ones, are an open loop [...]

Enhanced Corrosion Detection By Means of Multispectral Imaging and Postprocessing Techniques

Christie L., Fedorishin D.C., Forte III L., Giegerich W.V., Oh K.W., Schneider P.J., University at Buffalo, US
This research focuses on the implementation of an enhanced corrosion detection algorithm using multispectral imaging techniques and post-processing image filters. Utilizing various combinations of light filters with image enhancement software, we are able to increase [...]

Vascular Test Phantom Metrology For Use In Photoacoustic Applications

Christie L.B., Giegerich W.V., Oh K.W., Schneider P., University at Buffalo, US
The field of photoacoustics is increasing as new discoveries are being made showing potential for a system that is capable of higher resolution medical imaging, noninvasive vital monitoring, and cancer diagnostics. This research focuses on [...]

Chemical-Free Metal PDMS Thermal Bonding in Flexible Bio-Potential Electrode Fabrication

Koh D., Oh K.W., Wang A., University at Buffalo, US
The flexible bio-potential electrode is gaining signifiacnt interest in wearable or implantable biosensors. Among many soft materials, polydimethylsiloxane (PDMS) is widely studied because of its good biocompatibility and elasticity. However, due to the nature of [...]

Recirculating samples inside chambers using vacuum and centrifugal forces

Koh D., Oh K.W., Wang A., SMALL (Sensors and MicroActuators Learning Lab), Department of Electrical Engineering, The State University of New York at Buffalo, US
In this paper, a combination of vacuum and centrifugal forces was studied for recirculate samples inside the chambers. Detection low concentration samples, rare molecules such as cancer cells or certain proteins among large volume of [...]

Microfluidic Test Target for Photoacoustic Imaging

Christie L., Eadie N., Koh D., Oh K.W., Schneider P., Siskar T., Xia J., Zhan Y., University at Buffalo's Sensors & MicroActuators Learning Lab (SMALL), US
Photoacoustic imaging involves the use of optics (typically a high power pulsed laser) and acoustics (ultrasonics frequency ranges >1MHz) to image a targeted object. Individually, these modalities, being optical and ultrasonic imaging, can be quantified [...]

Additive Manufacturing of Microfluidic Components via Wax Extrusion

Christie L., Furlani E.P., Karampelas I.H., Oh K.W., Schneider P., Siskar T., Sukhotskiy V., University at Buffalo's Sensors & MicroActuators Learning Lab (SMALL), US
Fused deposition modelling (FDM) has been extensively applied in the fields of rapid prototyping and 3D printing, but typically this technique has mostly been used for the fabrication of low melting point plastics. This paper [...]

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

Koh D., Oh K.W., Schneider P., Wang A., 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

Koh D., Oh K.W., Schneider P., Wang A., 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

Furlani E.P., Lee H., Mojica W.D., Oh K.W., Xue X., 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. [...]

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