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  Multi-channel optical device for solar-driven bacterial inactivation under real-time temperature feedback

Liao, X., Liu, Y., Jia, Q., & Zhou, J. (2021). Multi-channel optical device for solar-driven bacterial inactivation under real-time temperature feedback. Chemistry – A European Journal, 27(43), 11094-11101. doi:10.1002/chem.202101458.

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 Creators:
Liao, Xianquan, Author
Liu, Yuxin1, Author              
Jia, Qi, Author
Zhou, Jing, Author
Affiliations:
1Felix Löffler, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2385692              

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Free keywords: antibacterial, photothermal conversion materials, solar devices, temperature sensing, upconversion
 Abstract: Solar-driven photothermal antibacterial devices have attracted a lot of interest due to the fact that solar energy is one of the cleanest sources of energy in the world. However, conventional materials have a narrow absorbance band, resulting in deficient solar harvesting. In addition, lack of knowledge on temperature change in these devices during the photothermal process has also led to a waste of energy. Here, we presented an elegant multi-channel optical device with a multilayer structure to simultaneously address the above-mentioned issues in solar-driven antibacterial devices. In the photothermal channel, semiconductor IrO2-nanoaggregates exhibited higher solar absorbance and photothermal conversion efficiency compared with nanoparticles. In the luminescence channel, thermal-sensitive Er-doped upconversion nanoparticles were utilized to reflect the microscale temperature in real-time. The bacteria were successfully inactivated during the photothermal effect under solar irradiation with temperature monitoring. This study could provide valuable insight for the development of smart photothermal devices for solar-driven photothermal bacterial inactivation in the future.

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Language(s): eng - English
 Dates: 2021-07-012021
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/chem.202101458
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Title: Chemistry – A European Journal
  Other : Chem. – Eur. J.
  Other : Chem. Eur. J.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 27 (43) Sequence Number: - Start / End Page: 11094 - 11101 Identifier: ISSN: 0947-6539