[41] Electrophoresis, 35, 2-3, 245-257, (2013)
Pumps for microfluidic cell cultures
Chang Kyu Byun, Kameel Abi-Samra, Yoon-Kyoung Cho*and Shuichi Takayama*
In this review, we summarize recent advances in pumping techniques for microfluidic cell culture and discuss their advantages and possible drawbacks.
[40] Lab Chip, 13, 18, 3747-3754, (2013)
Flow-enhanced Electrochemical Immunosensors on Centrifugal Microfluidic Platforms
Tae-Hyeong Kim+, Kameel Abi-Samra+, Vijaya Sunkara, Dong-Kyu Park, Mary Amasia, Nahui Kim, Jintae Kim, Hanshin Kim, Marc Madou* and Yoon-Kyoung Cho*
We present a novel fullyintegrated centrifugal microfluidic devicewith features for target antigen capture from biological samples, via a bead-based enzyme-linkedimmune-sorbent assay, and flow-enhanced electrochemicaldetection.
[39] Lab Chip, 13, 16, 3253-3260, (2013)
Electrochemical velocimetry on centrifugal microfluidic platforms
Kameel Abi-Samra+, Tae-Hyeong Kim+, Dong-Kyu Park, Nahui Kim, Jintae Kim, Hanshin Kim, Yoon-Kyoung Cho,* and Marc Madou*
We demonstrate that electrochemical velocimetry is a straightforward technique to accurately monitor flow on rotating microfluidic platforms in real-time.
[38] Anal. Chem., 85, 5, 2954–2960, (2013)
Lab-on-a-Disc for Simultaneous Determination of Nutrients in Water
Hyundoo Hwang, Yubin Kim, Juhye Cho, Ji-yoon Lee, Man-Sik Choi*, and Yoon-Kyoung Cho*
We introduce a new fully integrated centrifugal microfluidic device for simultaneous determination of five major inorganic nutrients: nitrite, nitrate+nitrite, ammonium, orthophosphate, and silicate.
[37] JACS, 135, 6, 2242–2247, (2013)
Productive Chemical Interaction Between a Bacterial Micro-colony Couple is Enhanced by Periodic Relocation
Chang Kyu Byun, Hyundoo Hwang, Woon Sun Choi, Toshiyuki Yaguchi, Jiwoon Park, Dasol Kim, Robert J. Mitchell*, Taesung Kim*, Yoon-Kyoung Cho*and Shuichi Takayama*
This paper describes a system to study how small physical perturbations can affect bacterial community behavior in unexpected ways through modulation of diffusion and convective transport of chemical communication molecules and resources
[36] Sensors & Actuators: B. Chemical, 178, 648-655, (2013)
Geometry Effects on Blood Separation Rate on a Rotating Disc
Tae-Hyeong Kim, Hyundoo Hwang, Robert Gorkin, Marc Madou, Yoon-Kyoung Cho
The geometric factors for faster particle separation rate on a centrifugal microfluidic platform are described
[35] Biomedical Microdevices, 15, 4, 627-634, (2013)
Three dimensional multicellular co-cultures and anti-cancer drug assays in rapid prototyped multilevel microfluidic devices
Hyundoo Hwang, Juhee Park, Changsik Shin, YoonKyung Do, Yoon-Kyoung Cho*
This report presents a multilevel microfluidic platform for robust construction of hydrogel scaffold in microchannels and its application to three dimensional (3D) multicellular co-cultures and assays.
[34] ACS Appl. Mater. Interfaces, 4, 12, 6537-6544, (2012)
Investigation on the Mechanism of Aminosilane-Mediated Bonding of Thermoplastics and Poly(dimethylsiloxane)
Vijaya Sunkara and Yoon-Kyoung Cho*
A possible mechanism for the aminosilane-mediated room-temperature (RT) bonding of thermoplastics and poly(dimethylsiloxane) (PDMS) is presented.
[33] RSC Advances, 2, 24, 9066-9070, (2012)
Versatile method for bonding hard and softmaterials
Vijaya Sunkara , Dong-Kyu Park and Yoon-Kyoung Cho*
We report a versatile method for bonding dissimilar materials which is an important issue in the fabrication of micro- and nanofluidic devices.
[32] ACS Appl. Mater. Interfaces, 4, 12, 6537-6544, (2012)
Aqueous two-phase system-derived biofilms for bacterial interaction studies
Toshiyuki Yaguchi, Mohammed Dwidar, Chang Kyu Byun, Brendan Leung, Siseon Lee,
Yoon-Kyoung Cho, Robert J. Mitchell,* and Shuichi Takayama*
We describe patterning of bacterial biofilms using polymer-based aqueous two-phase system (ATPS) microprinting protocols.
[31] Anal. Chem., 84, 5, 2133–2140, (2012)
Lab-on-a-Disc for Fully Integrated Multiplexed Immunoassay
Jiwoon Park,Vijaya Sunkara, Tae-Hyeong Kim, Hyundoo Hwang and Yoon-Kyoung Cho*
This paper presents a cost-effective, rapid, and fully automated lab-on-a-disc for simultaneous detection of multiple protein biomarkers in raw samples such as whole blood or whole saliva.
[30] ACS Appl. Mater. Interfaces, 4, 1, 34–39, (2012)
Increased Graphitization in Electrospun Single Suspended Carbon Nanowires Integrated with Carbon-MEMS and Carbon-NEMS Platforms
Swati Sharma, Ashutosh Sharma*, Yoon-Kyoung Cho, and Marc Madou*
Single suspended carbon nanowires (CNWs) integrated on carbon-MEMS (CMEMS) structures are fabricated by electrospinning of SU-8 photoresist followed by pyrolysis.
[29] Carbon, 50, 5, 1753–1761, (2012)
Improved graphitization and electrical conductivity of suspended carbon nanofibers derived from carbon nanotube/polyacrylonitrile composites by directed electrospinning
Tanmoy Maitra, Swati Sharma, Alok Srivastava, Yoon-Kyoung Cho, Marc Madou, Ashutosh Sharma*
Single suspended carbon nanofibers on carbon micro-structures were fabricated by direct electrospinning and subsequent pyrolysis at 900 °C of carbon nanotube/polyacrylonitrile (CNT/PAN) composite material.
[28] Lab Chip, 11, 20, 3404-3406, (2011)
Paper on a disc: Balancing the capillary-driven flow with a centrifugal force
Hyundoo Hwang, Seung-Hoon Kim, Tae-Hyeong Kim, Je-Kyun Park, and Yoon-Kyoung Cho*
This paper describes the active control of the capillary-driven flow in paper using a centrifugal device.
[27] Lab Chip, 11, 15, 2518-2525, (2011)
In situ dynamic measurements of the enhanced SERS signal using an optoelectrofluidic SERS platform
Hyundoo Hwang, Dongsik Han, Young-Jae Oh, Yoon-Kyoung Cho, Ki-Hun Jeong, Je-Kyun Park*
In situ measurements of the enhanced SERS signal are demonstrated by using dynamic SERS active sites resulted from optically induced electrokinetic mechanisms.