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Remarkably selective biocompatible turn-on fluorescent probe for detection of Fe³⁺ in human blood samples and cells.

ABSTRACT: The robust nature of a biocompatible fluorescent probe is demonstrated, by its detection of Fe³⁺ even after repeated rounds of quenching (reversibility) by acetate in real human blood samples and cells in vitro. Significantly trace levels of Fe³⁺ ions up to 8.2 nM could be detected, remaining unaffected by the existence of various other metal ions. The obtained results are validated by AAS and ICP-OES methods. A portable test strip is also fabricated for quick on field detection of Fe³⁺. As iron is a ubiquitous metal in cells and plays a prominent role in biological processes, the use of this probe to image Fe³⁺ in cells is a substantial development towards biosensing. Cytotoxicity studies also proved the nontoxic nature of this probe.

SUBMITTER: V H V

PROVIDER: S-EPMC9070666 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Remarkably selective biocompatible turn-on fluorescent probe for detection of Fe3+ in human blood samples and cells.

V H Vishaka V Saxena Manav M R Geetha Balakrishna GB Latiyan Sachin S Jain Shilpee S

RSC advances 20190801 47

The robust nature of a biocompatible fluorescent probe is demonstrated, by its detection of Fe3+ even after repeated rounds of quenching (reversibility) by acetate in real human blood samples and cells in vitro. Significantly trace levels of Fe3+ ions up to 8.2 nM could be detected, remaining unaffected by the existence of various other metal ions. The obtained results are validated by AAS and ICP-OES methods. A portable test strip is also fabricated for quick on fie ...[more]

PMID: 35529189

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