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Highly selective fluorescent turn-on-off sensing of OH^-, Al³⁺ and Fe³⁺ ions by tuning ESIPT in metal organic frameworks and mitochondria targeted bio-imaging.

ABSTRACT: Herein we report a multifunctional high performance metal organic framework (Zn-DHNDC MOF) based chemosensor that displays an exceptional excited state intramolecular proton transfer (ESIPT) tuned fluorescence turn-on-off response for OH^-, Al³⁺ and Fe³⁺ ions along with mitochondria targeted bio-imaging. Properly tuning ESIPT as well as the hydroxyl group (-OH) allows Zn-DHNDC MOF to optimize and establish chelation enhanced fluorescence (CHEF) and chelation enhanced quenching (CHEQ) based sensing mechanisms. The MOF benefits from acid-base interactions with the ions which generate a turn-on bluish green fluorescence (λ _Em 492 nm) for OH^-, an intense turn-on green fluorescence (λ _Em 528 nm) for Al³⁺ a

SUBMITTER: Bhowal S

PROVIDER: S-EPMC9037803 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature

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Highly selective fluorescent turn-on-off sensing of OH^-, Al³⁺ and Fe³⁺ ions by tuning ESIPT in metal organic frameworks and mitochondria targeted bio-imaging.

OmicsDI is part of the ELIXIR infrastructure

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Dataset Information

Highly selective fluorescent turn-on-off sensing of OH-, Al3+ and Fe3+ ions by tuning ESIPT in metal organic frameworks and mitochondria targeted bio-imaging.

OmicsDI is part of the ELIXIR infrastructure

Tweets

Highly selective fluorescent turn-on-off sensing of OH^-, Al³⁺ and Fe³⁺ ions by tuning ESIPT in metal organic frameworks and mitochondria targeted bio-imaging.