Luminescent upconversion nanoparticles evaluating temperature-induced stress experienced by aquatic organisms owing to environmental variations

Alexey P. Popov, Maxim Timofeyev, Alexander V. Bykov, Igor Meglinski*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Growing anthropogenic activities are significantly influencing the environment and especially aquatic ecosystems. Therefore, there is an increasing demand to develop techniques for monitoring and assessing freshwater habitat changes so that interventions can prevent irrevocable damage. We explore an approach for screening the temperature-induced stress experienced by aquatic organisms owing to environmental variations. Luminescent spectra of upconversion [Y2O3: Yb, Er] particles embedded within Caridina multidentata shrimps are measured, while ambient temperature gradient is inducing stress conditions. The inverse linear dependence of the logarithmic ratio of the luminescence intensity provides an effective means for temperature evaluation inside aquatic species in vivo. The measured luminescence shows high photostability on the background of the complete absence of biotissues’ autofluorescence, as well as no obscuration of the luminescence signal from upconversion particles. Current approach of hybrid sensing has a great potential for monitoring variations in aquatic ecosystems driven by climate changes and pollution.

Original languageEnglish
Article number104568
JournaliScience
Volume25
Issue number7
Early online date9 Jun 2022
DOIs
Publication statusPublished - 15 Jul 2022

Bibliographical note

© 2022 The Author(s). CC BY 4.0

Funding: This work was funded by Russian Science Foundation (projects: 20-64-46003 and 19-72-30012), and
partially by the support of a grant under the Decree of the Government of the Russian Federation No.
220 of 09 April 2010 (Agreement No. 075-15-2021-615 of 04 June 2021). The authors also
acknowledge the contribution of INFOTECH and the Academy of Finland (project 325097). I.M.
acknowledges the partial support from the Leverhulme Trust and the Royal Society (Ref.
no.:APX111232 APEX Awards 2021).

Keywords

  • Aquatic science
  • Environmental science
  • Physiology
  • Zoology

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