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HomeAuthorsOh K.W.

Authors: Oh K.W.

Development, Manufacturing, and Application of Photoacoustic Test Phantom

Christie L.B., Schneider P.J., Heidrich J.R., Oh K.W., University at Buffalo, US
Photoacoustic (PA) research is an up and coming field that is being applied to the medical space. PA combines the use of both optics and acoustics to create a final outputted signal (Figure 1). The [...]

Computational Modeling of a Wearable Device with Feedback to Advance the Healing of Chronic Skin Ulcers

Heidrich J., Oh K.W., University at Buffalo, US
This paper discusses how COMSOL Multiphysics modeling software allows for design ideas to be validated through computer simulation. The simulations generated show the Organic Electrochemical Field Effect Transistor (OECT) with a Poly(imide) (PI) polymer microfluidic [...]

Automated Classification of Defected Images by Means of Machine Learning for Improved Analysis of Vehicle Undercarriages

Giegerich W.V., Stone A., Forte III L., Schneider P.J., Oh K.W., University at Buffalo, US
This research focuses on the development of a vehicle undercarriage image quality machine learning model. The model returns the quality of the image across several categories which are used for classifying image defects. Through analysis [...]

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

Giegerich W.V., Fedorishin D.C., Forte III L., Christie L., Schneider P.J., Oh K.W., 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., Schneider P., Oh K.W., 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., Wang A., Oh K.W., 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

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

Schneider P., Eadie N., Christie L., Zhan Y., Siskar T., Koh D., Xia J., Oh K.W., 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

Schneider P., Sukhotskiy V., Christie L., Siskar T., Karampelas I.H., Furlani E.P., Oh K.W., 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 [...]

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