2024
DOI: 10.1002/smll.202401703
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Quantum Dot/TiO2 Nanocomposite‐Based Photoelectrochemical Sensor for Enhanced H2O2 Detection Applied for Cell Monitoring and Visualization

Shuang Zhao,
Zhao Yue,
Dingcheng Zhu
et al.

Abstract: This work exploits the possibility of using CdSe/ZnS quantum dot (QD)‐electrodes to monitor the metabolism of living cells based on photoelectrochemical (PEC) measurements. To realize that, the PEC setup is improved with respect to an enhanced photocurrent signal, better stability, and an increased signal‐to‐noise ratio, but also for a better biocompatibility of the sensor surface on which cells have been grown. To achieve this, a QD‐TiO2 heterojunction is introduced with the help of atomic layer deposition (A… Show more

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