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10 October 2020 Cellular temperature and pH sensor based on carbon dots
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Abstract
This study is devoted to a new approach to solve the problem of pH (in range of pH from 5 to 8) and temperature (in range of 30-45°C) measurements at nanoscale level, by using carbon dots (CDs), prepared from citric acid. These 10 nm sized nanoparticles with luminescence quantum yield ~10% have broad unstructured luminescence spectrum in the range from 420 to 750 nm, which is sensitive to the change of the environmental parameters. Different influence of pH and temperature values on luminescence spectra of CDs in aqueous suspensions was observed. The CD-based nanosensor was developed for simultaneous determination of pH and temperature using artificial neural networks.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kirill A. Laptinskiy, Sergey A. Burikov, Galina N. Chugreeva, Maria Y. Khmeleva, Olga E. Sarmanova, Alexandra E. Tomskaya, and Tatiana A. Dolenko "Cellular temperature and pH sensor based on carbon dots", Proc. SPIE 11554, Advanced Sensor Systems and Applications X, 1155403 (10 October 2020); https://doi.org/10.1117/12.2573509
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