Dielectrophoresis manipulation: Versatile lateral and vertical mechanisms

MR Buyong, AA Kayani, AA Hamzah, B Yeop Majlis - Biosensors, 2019 - mdpi.com
Discussing the topic of the capability of dielectrophoresis (DEP) devices in terms of the
selective detection and rapid manipulation of particles based on the DEP force (FDEP) via …

Electrokinetically enhanced label-free plasmonic sensing for rapid detection of tumor-derived extracellular vesicles

TJ Kwak, T Son, JS Hong, UA Winter, MH Jeong… - Biosensors and …, 2023 - Elsevier
Abstract Analysis of rare circulating extracellular vesicles (EV) from early cancers or different
types of host cells requires extremely sensitive EV sensing technologies. Nanoplasmonic EV …

Nanoscale biophysical properties of small extracellular vesicles from senescent cells using atomic force microscopy, surface potential microscopy, and Raman …

HG Lee, S Roh, HJ Kim, S Kim, Y Hong, G Lee… - Nanoscale …, 2022 - pubs.rsc.org
Cells secrete extracellular vesicles (EVs) carrying cell-of-origin markers to communicate with
surrounding cells. EVs regulate physiological processes ranging from intercellular signaling …

Localized dielectric loss heating in dielectrophoresis devices

TJ Kwak, I Hossen, R Bashir, WJ Chang, CH Lee - Scientific reports, 2019 - nature.com
Temperature increases during dielectrophoresis (DEP) can affect the response of biological
entities, and ignoring the effect can result in misleading analysis. The heating mechanism of …

Dielectrophoretic separation of randomly shaped protein particles

TJ Kwak, H Jung, BD Allen, MC Demirel… - Separation and …, 2021 - Elsevier
Recently, insoluble protein particles have been increasingly investigated for artificial drug
delivery systems due to their favorable properties, including programmability for active drug …

Detection of silver ions using dielectrophoretic tweezers-based force spectroscopy

S Choi, G Lee, IS Park, M Son, W Kim, H Lee… - Analytical …, 2016 - ACS Publications
Understanding of the interactions of silver ions (Ag+) with polynucleotides is important not
only to detect Ag+ over a wide range of concentrations in a simple, robust, and high …

Quantification of the mechanical strength of thermally reduced graphene oxide layers on flexible substrates

M Rezaee, LC Tsai, A Elyasigorji, MI Haider… - Engineering Fracture …, 2021 - Elsevier
This paper proposes a method to characterize the failure modes of rGO 1-based devices
using a controlled peel test. Analysis of the detached rGO particles from the substrate during …

Quantitative analysis of the three‐dimensional trap stiffness of a dielectrophoretic corral trap

MRU Rahman, TJ Kwak, JC Woehl… - Electrophoresis, 2021 - Wiley Online Library
Dielectrophoresis is a robust approach for the manipulation and separation of (bio) particles
using microfluidic platforms. We developed a dielectrophoretic corral trap in a microfluidic …

Variable membrane dielectric polarization characteristic in individual live cells

I Park, JW Lim, SH Kim, S Choi, KH Ko… - The Journal of …, 2020 - ACS Publications
Investigation of the dielectric properties of cell membranes plays an important role in
understanding the biological activities that sustain cellular life and realize cellular …

Effect of geometry on dielectrophoretic trap stiffness in microparticle trapping

MRU Rahman, TJ Kwak, JC Woehl, WJ Chang - Biomedical Microdevices, 2021 - Springer
Dielectrophoresis, an electrokinetic technique, can be used for contactless manipulation of
micro-and nano-size particles suspended in a fluid. We present a 3-D microfluidic DEP …