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Novel triphenylamine-pyrene-based AIEgens: Specific detection and imaging of H2O2 in aqueous solution and cells

Zhou, Xu; Shen, Lingyi; Tan, Xiaoqing; Wang, Xue; Liang, Xi; Shan, Xiaofeng; Xu, Hong; Wang, Zhi Yong; Redshaw, Carl; Zhang, Qi Long

Authors

Xu Zhou

Lingyi Shen

Xiaoqing Tan

Xue Wang

Xi Liang

Xiaofeng Shan

Hong Xu

Zhi Yong Wang

Qi Long Zhang



Abstract

H2O2 plays a key regulatory role as a bioendogenous reactive oxygen species in cells and organisms. However, excessive production or accumulation of H2O2 during mitochondrial oxidative stress may lead to oxidative damage of cellular proteins and trigger rheumatic diseases, cancers, and a variety of neurodegenerative disorders such as Alzheimer's disease and Parkinson's disease. In addition, H2O2 is a very useful chemical widely employed in the textile and chemical industries, and its excessive emission not only pollutes the environment but also jeopardizes human health. Therefore, the sensitive and specific detection and removal of H2O2 is important for early diagnosis of diseases, treatment prognosis and environmental pollution monitoring. We have designed two novel triphenylamine-based AIEgens MOTPP and MOTPP-B, which each have a high solid-state fluorescence quantum yield and excellent aggregation-induced emission properties. MOTPP-B has high selectivity and anti-interference ability toward H2O2, a wide pH tolerance range, a sensing process that is complete in under 40 min, and a low detection limit of 120.77 nM. It has been successfully applied for the detection of low concentrations of H2O2 in the environment and to dual-channel imaging of low concentrations of exogenous H2O2 in living cells.

Citation

Zhou, X., Shen, L., Tan, X., Wang, X., Liang, X., Shan, X., Xu, H., Wang, Z. Y., Redshaw, C., & Zhang, Q. L. (2024). Novel triphenylamine-pyrene-based AIEgens: Specific detection and imaging of H2O2 in aqueous solution and cells. Journal of molecular structure, 1318(pt.1), Article 139262. https://doi.org/10.1016/j.molstruc.2024.139262

Journal Article Type Article
Acceptance Date Jul 9, 2024
Online Publication Date Jul 10, 2024
Publication Date Dec 15, 2024
Deposit Date Jul 13, 2024
Publicly Available Date Jul 11, 2025
Journal Journal of Molecular Structure
Print ISSN 0022-2860
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 1318
Issue pt.1
Article Number 139262
DOI https://doi.org/10.1016/j.molstruc.2024.139262
Public URL https://hull-repository.worktribe.com/output/4736493