Ultrasensitive marker-free biomolecular THz-detection for tumor-related analytics
Richter M, Loth Y, Weisenstein C, Wigger AK, Schaar D, Boßerhoff AK, Bolivar PH (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 76
Pages Range: 627-637
Journal Issue: 11-12
Abstract
Terahertz (THz) biosensing has emerged as an important research field, mainly driven by the resonant behavior of many biomolecules in this spectral range which holds potential for highly sensitive analyses. In this work, we present a detailed overview of our current research on THz biosensing, focusing on the development and analysis of THz biosensors based on frequency selective surfaces (FSS) for two different measurement scenarios: i) label-free, highly sensitive and selective analysis of dried biomolecules, and ii) sensitive and selective analysis in an aqueous environment. With our carefully designed THz biosensor for measurements in the dry state, we were able to indirectly measure tumor-marker MIA RNA in a concentration as low as 1.55 x 10(-12) mol/L, without the need for biochemical amplification. Our biosensor with substrate-integrated microfluidics for terahertz measurements in an aqueous environment is validated by simulations, showing that the resonance feature in the frequency response of our sensor is maintained even for measurements in water.
Authors with CRIS profile
Dominik Schaar
Lehrstuhl für Biochemie und Molekulare Medizin
Anja Katrin Boßerhoff
Lehrstuhl für Biochemie und Molekulare Medizin
Involved external institutions
Germany (DE)How to cite
APA:
Richter, M., Loth, Y., Weisenstein, C., Wigger, A.K., Schaar, D., Boßerhoff, A.K., & Bolivar, P.H. (2022). Ultrasensitive marker-free biomolecular THz-detection for tumor-related analytics. Frequenz, 76(11-12), 627-637. https://doi.org/10.1515/freq-2022-0092
MLA:
Richter, Merle, et al. "Ultrasensitive marker-free biomolecular THz-detection for tumor-related analytics." Frequenz 76.11-12 (2022): 627-637.
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