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Sahoo SK, Ashok Kumar SK. Methods special issue: Recent advancement on fluorescent chemosensing and bioimaging. Methods 2024; 227:35-36. [PMID: 38723733 DOI: 10.1016/j.ymeth.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2024] Open
Affiliation(s)
- Suban K Sahoo
- Department of Chemistry, S. V. National Institute Technology, Surat 395007, Gujarat, India.
| | - S K Ashok Kumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632 014, Tamil Nadu, India.
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Chettri B, Fernandes RS, Jha S, Dey N. Label-free multimodal analysis of copper ions at below permissible exposure limit in the aqueous medium. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123620. [PMID: 38039638 DOI: 10.1016/j.saa.2023.123620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 10/26/2023] [Accepted: 11/04/2023] [Indexed: 12/03/2023]
Abstract
An anthraimidazoledione based amphiphilic dye molecule was synthesized that shows formation of tuneable charge-transfer state in solution, susceptible to change in pH, polarity and hydrogen bonding ability of the medium. The compound also showed formation of nanoscopic self-assembled structure in water medium. The probe molecule can achieve multimodal detection (colorimetric, fluorimetric and electrochemical) of copper ions as low as 0.3 ppm in the aqueous medium. Addition of copper leads to dose-dependent ratiometric change in solution color from yellow to purple. The mechanistic investigation indicates that the coordination of copper ions was possible via simultaneous engagement of both imidazole nitrogen ends and neighbouring hydroxyl unit. Not only optical property, the changes in microenvironment also influence the selectivity as well as sensitivity of the probe molecule towards Cu2+ ions. Further, the optical probe is used for detection as well as quantification of copper ions in natural water samples without any sample pretreatment. Low-cost, reusable paper strips are developed for rapid, on-location detection of residual Cu2+ in real-life samples.
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Affiliation(s)
- Bimal Chettri
- Department of Chemistry, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Majitar, Sikkim 737136, India
| | - Rikitha S Fernandes
- Department of Chemistry, Birla Institute of Technology and Sciences-Pilani Hyderabad Campus, Shameerpet, Hyderabad 500078, Telangana, India
| | - Satadru Jha
- Department of Chemistry, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Majitar, Sikkim 737136, India
| | - Nilanjan Dey
- Department of Chemistry, Birla Institute of Technology and Sciences-Pilani Hyderabad Campus, Shameerpet, Hyderabad 500078, Telangana, India.
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Rasin P, Basheer SM, Haribabu J, Aneesrahman K, Manakkadan V, Vadakkedathu Palakkeezhillam VN, Bhuvanesh N, Echeverria C, Santibanez JF, Sreekanth A. Host-guest interactions of coumarin-based 1,2-pyrazole using analytical and computational methods: Paper strip-based detection, live cell imaging, logic gates and keypad lock applications. Heliyon 2024; 10:e24077. [PMID: 38234888 PMCID: PMC10792585 DOI: 10.1016/j.heliyon.2024.e24077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/19/2023] [Accepted: 01/03/2024] [Indexed: 01/19/2024] Open
Abstract
A novel Coumarin-based 1,2-pyrazole, HCPyTSC is synthesised and characterized. The chemosensor has been shown to have efficient colourimetric and fluorescence sensing capabilities for the quick and selective detection of fluoride and copper ions. At 376 and 430 nm, the HCPyTSC exhibits selective sensing for Cu2+ and F- ions. By examining the natural bond orbital (NBO) analysis and the potential energy curve (PES) of the ground state for the function of the C-H bond, it has been determined from the theoretical study at hand that the deprotonation was taken from the 'CH' proton of the pyrazole ring. For F- and Cu2+, the HCPyTSC detection limits were 4.62 nM and 15.36 nM, respectively. Similarly, the binding constants (Kb) for F- and Cu2+ ions in acetonitrile medium were found to be 2.06 × 105 M-1 and 1.88 × 105 M-1. Chemosensor HCPyTSC with and without F- and Cu2+ ions have an emission and absorption response that can imitate a variety of logic gates, including the AND, XOR, and OR gates. Additionally, a paper-based sensor strip with the HCPyTSC was created for use in practical, flexible F- sensing applications. The paper-based sensor was more effective in detecting F- than other anions. The effectiveness of HCPyTSC for the selective detection of F- in living cells as well as its cell permeability were examined using live-cell imaging in T24 cells.
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Affiliation(s)
- Puthiyavalappil Rasin
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, Tamil Nadu, 620015, India
| | - Sabeel M. Basheer
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, Tamil Nadu, 620015, India
- Dr. Sabeel M Basheer, Department of Chemistry, School of Advanced Sciences, VIT-AP University, 522 237, Andhra Pradesh, India
| | - Jebiti Haribabu
- ATACAMA-OMICS, Facultad de Medicine, Universidad de, Los Carreras 1579, 1532502, Copiapo, Chile
- Chennai Institute of Technology (CIT), Chennai 600069, India
| | - K.N. Aneesrahman
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, Tamil Nadu, 620015, India
| | - Vipin Manakkadan
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, Tamil Nadu, 620015, India
| | | | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A & M University, College Station, TX 77842, USA
| | - Cesar Echeverria
- ATACAMA-OMICS, Facultad de Medicine, Universidad de, Los Carreras 1579, 1532502, Copiapo, Chile
| | - Juan F. Santibanez
- Institute for Medical Research, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
- Integrative Center for Biology and Applied Chemistry (CIBQA), Bernardo O'Higgins University, Santiago, Chile
| | - Anandaram Sreekanth
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, Tamil Nadu, 620015, India
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