Naphthalenediimide-based nanoarchitectonics for a fluorescent chemosensor with highly selective and sensitive detection of cyanide ions

Vilas K Gawade; Ratan W Jadhav; Vishnu R Chari; Rahul V Hangarge; Sheshanath V Bhosale

doi:10.1039/d3ay00615h

Naphthalenediimide-based nanoarchitectonics for a fluorescent chemosensor with highly selective and sensitive detection of cyanide ions

Anal Methods. 2023 Aug 3;15(30):3727-3734. doi: 10.1039/d3ay00615h.

Authors

Vilas K Gawade¹, Ratan W Jadhav², Vishnu R Chari², Rahul V Hangarge³, Sheshanath V Bhosale¹

Affiliations

¹ Department of Chemistry, School of Chemical Sciences, Central University Karanataka, Kalaburagi, Karanataka-585367, India. svbhosale@unigoa.ac.in.
² School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
³ Deapartment of Chemistry, Tai Gowalkar Mahavidyalaya, Ramtek, Nagpur-441106, India.

PMID: 37482761
DOI: 10.1039/d3ay00615h

Abstract

A naphthalenediimide (NDI)-based highly potential chemosensor for the detection of cyanide has been synthesized successfully in several steps. The NDI-based probe displayed high selectivity and sensitivity towards cyanide ions in fluorescence 'turn-off' mode over other ions used in this study. The naked-eye, UV-vis absorbance and fluorescence methods are employed to investigate the sensing performance of probe 1 toward CN^- ion detection. The limit of detection for CN^- ions was calculated to be 4.11 × 10^-7 M. Moreover, the Stern-Volmer quenching constant and fluorescence quenching efficiency of CN^- ions were estimated to be 1.1 × 10⁵ M and 88.81%, respectively. Job's plot showed a 1 : 1 stoichiometric complexation reaction between probe 1 and CN^- ions. For practical applications, probe 1 was efficiently applied for the detection of CN^- ions using a paper strip method.