C
Carlos Duarte-Guevara
Researcher at University of Illinois at Urbana–Champaign
Publications - 12
Citations - 311
Carlos Duarte-Guevara is an academic researcher from University of Illinois at Urbana–Champaign. The author has contributed to research in topics: Reference electrode & Loop-mediated isothermal amplification. The author has an hindex of 8, co-authored 12 publications receiving 249 citations. Previous affiliations of Carlos Duarte-Guevara include Urbana University.
Papers
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Journal ArticleDOI
Smartphone-Imaged HIV-1 Reverse-Transcription Loop-Mediated Isothermal Amplification (RT-LAMP) on a Chip from Whole Blood
Gregory L. Damhorst,Carlos Duarte-Guevara,Weili Chen,Tanmay Ghonge,Brian T. Cunningham,Rashid Bashir +5 more
TL;DR: This paper performs reverse-transcription loop-mediated isothermal amplification (RT-LAMP) on minimally processed HIV-spiked whole blood samples with a microfluidic and silicon microchip platform, and performs fluorescence measurements with a consumer smartphone.
Journal ArticleDOI
Electrical detection of nucleic acid amplification using an on-chip quasi-reference electrode and a PVC REFET.
Eric Salm,Eric Salm,Yu Zhong,Yu Zhong,Bobby Reddy,Bobby Reddy,Carlos Duarte-Guevara,Carlos Duarte-Guevara,Vikhram V. Swaminathan,Vikhram V. Swaminathan,Yi Shao Liu,Rashid Bashir,Rashid Bashir +12 more
TL;DR: A novel method of utilizing a microfabricated solid-state quasi-reference electrode (QRE) paired with a pH-insensitive reference field effect transistor (REFET) for detection of real-time pH changes is demonstrated.
Journal ArticleDOI
Enhanced biosensing resolution with foundry fabricated individually addressable dual-gated ISFETs.
Carlos Duarte-Guevara,Fei Lung Lai,Cheng Chun-Wen,Bobby Reddy,Eric Salm,Vikhram V. Swaminathan,Ying Kit Tsui,Hsiao Chin Tuan,Alex Kalnitsky,Yi Shao Liu,Rashid Bashir +10 more
TL;DR: It is shown that when operated in a "dual-gate" mode, the transistor response can exhibit sensitivities to pH changes beyond the Nernst limit, and an improved resolution can be used to enhance small signals and increase the sensor accuracy when monitoring small pH dynamics in biological reactions.
Journal ArticleDOI
Droplet-based Biosensing for Lab-on-a-Chip, Open Microfluidics Platforms.
Piyush Dak,Aida Ebrahimi,Vikhram V. Swaminathan,Carlos Duarte-Guevara,Rashid Bashir,Muhammad A. Alam +5 more
TL;DR: The key challenges that must be addressed to make label-free, droplet-based biosensors commercially viable are identified and a number of promising research directions are summarized.
Journal ArticleDOI
On-chip metal/polypyrrole quasi-reference electrodes for robust ISFET operation
Carlos Duarte-Guevara,Vikhram V. Swaminathan,Mark Burgess,Bobby Reddy,Eric Salm,Yi Shao Liu,Joaquín Rodríguez-López,Rashid Bashir +7 more
TL;DR: The simple fabrication, high compatibility, and robust electrical performance make polypyrrole an ideal choice for the fabrication of outstanding microreference electrodes that enable robust and sensitive operation of multiple ISFET sensors on a chip.