Steven M. Quarin

ORCID: 0009-0005-3309-372X
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About
Contact & Profiles
Research Areas
  • Biosensors and Analytical Detection
  • Advanced biosensing and bioanalysis techniques
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Liquid Crystal Research Advancements
  • Photonic and Optical Devices
  • Electrochemical sensors and biosensors
  • Innovative Microfluidic and Catalytic Techniques Innovation
  • Molecular spectroscopy and chirality
  • Adenosine and Purinergic Signaling
  • Conducting polymers and applications

University of Cincinnati
2021-2025

Azimuth (United States)
2023

Wright-Patterson Air Force Base
2023

The current pandemic has shown that we need sensitive and deployable diagnostic technologies. Surface-enhanced Raman scattering (SERS) sensors can be an ideal solution for developing such advanced point-of-need (PON) tests. Homogeneous (reagentless) SERS work by directly responding to the target without any processing step, making them capable simple one-pot assays, but their limitation is achievable sensitivity, insufficient compared what needed sensing of viral biomarkers. Noncovalent DNA...

10.1021/acssensors.3c00175 article EN ACS Sensors 2023-04-20

Nature is highly efficient at producing chiral compounds that are enantiomerically pure. The inherent chirality of naturally occurring biomolecules means many have the potential to be used as dopants for cholesteric liquid crystal (CLC) systems. Though been identified dopants, remain yet probed their ability function dopants. Here, 10 comprised steroids and bile acids were tested CLCs. Progesterone was having high miscibility with nematic crystals in responsive devices. Progesterone-doped...

10.3390/app13085054 article EN cc-by Applied Sciences 2023-04-18

We demonstrate the density and shape of platinum nanoparticles (PtNP) on carbon-fiber microelectrodes with fast-scan cyclic voltammetry (FSCV) directly impacts detection adenosine. Previously, we showed that metal nanoparticle-modified carbon significantly improves adenine-based purine detection; however, how size particles impact electrochemical was not investigated. Electrochemical investigations surface topology morphology is necessary for designing ultrasensitive electrodes expanding...

10.1149/1945-7111/ac65bc article EN Journal of The Electrochemical Society 2022-04-01

The COVID-19 pandemic has highlighted the importance of point-of-care (POC) pathogen detection. Accurate and accessible diagnostic techniques for virus identification are crucial controlling spread diseases have profound implications our communities global health. Reagentless surface-enhanced Raman scattering (SERS) sensors offer a promising solution POC testing due to their capability function without complex processing steps. However, application in this space is limited by fact that these...

10.1039/d4ay01667j article EN Analytical Methods 2024-01-01
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