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Kar MK, Mahata R, Srimayee S, Haloi N, Kumar R, Lindahl E, Santra MK, Manna D. β-Carboline-based light and pH dual stimuli-responsive ion transporters induce cancer cell death. Chem Commun (Camb) 2024; 60:8419-8422. [PMID: 39028297 DOI: 10.1039/d4cc02232g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Light and pH dual-responsive ion transporters offer better applicability for cancer due to higher tunability and low cytotoxicity. Herein, we demonstrate the development of pH-responsive β-carboline-based ionophores and photocleavable-linker appended β-carboline-based proionophores to facilitate the controlled transport of Cl- across membranes, leading to apoptotic and autophagic cancer cell death.
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Affiliation(s)
- Mrinal Kanti Kar
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Rumpa Mahata
- National Centre for Cell Science, Maharashtra, 411007, India
| | - Soumya Srimayee
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Nandan Haloi
- Department of Applied Physics, Science for Life Laboratory, KTH Royal Institute of Technology, Tomtebodavägen 23, Solna, SE-17165, Sweden
- Department of Biochemistry and Biophysics, Science for Life, Laboratory, Stockholm University, Tomtebodavägen 23, Solna, SE-17165, Sweden
| | - Rahul Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Erik Lindahl
- Department of Applied Physics, Science for Life Laboratory, KTH Royal Institute of Technology, Tomtebodavägen 23, Solna, SE-17165, Sweden
- Department of Biochemistry and Biophysics, Science for Life, Laboratory, Stockholm University, Tomtebodavägen 23, Solna, SE-17165, Sweden
| | | | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India
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Pandey N, Pant S, Mehata MS. Effect of halide ions on the fluorescence properties of 3-aminoquinoline in aqueous medium. LUMINESCENCE 2022. [PMID: 35801489 DOI: 10.1002/bio.4323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/28/2022] [Accepted: 06/21/2022] [Indexed: 11/06/2022]
Abstract
Fluorescence (FL) quenching of 3-aminoquinoline (3AQ) by halide ions Cl - Br - and I - has been explored in an aqueous acidic medium using the steady-state and time-domain FL measurement techniques. The halide ions showed no significant change in the absorption spectra of 3AQ in an aqueous acidic medium. The FL intensity is strongly quenched by I - ions and the order of FL quenching by halide ions is I - > Br - > Cl - . The decrease in FL lifetime along with a reduction in FL intensity of 3AQ suggested the dynamic nature of quenching. The obtained value of K SV was 328 M - 1 for I - ions and 119 M - 1 for Br - ions and the value k q was around 1.66 × 10 10 M - 1 s - 1 and 6.02 × 10 9 M - 1 s - 1 , respectively. Thus, the observations suggest that the likely governing mechanism for FL quenching should be an electron transfer process and the involvement of the heavy atom effect.
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Affiliation(s)
- Nupur Pandey
- Photophysics Laboratory, Department of Physics, Centre of Advanced Study, DSB Campus, Kumaun University, Nainital, India
| | - Sanjay Pant
- Photophysics Laboratory, Department of Physics, Centre of Advanced Study, DSB Campus, Kumaun University, Nainital, India
| | - Mohan Singh Mehata
- Laser-Spectroscopy Laboratory, Department of Applied Physics, Delhi Technological University, Bawana Road, Delhi, India
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Aswathy AO, Anju SM, Jayakrishna J, Vijila NS, Anjali Devi JS, Anjitha B, George S. Investigation of Heavy Atom Effect on Fluorescence of Carbon Dots: NCDs and S,N-CDs. J Fluoresc 2020; 30:1337-1344. [DOI: 10.1007/s10895-020-02607-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/11/2020] [Indexed: 01/29/2023]
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Gharat PM, Pal H, Dutta Choudhury S. Photophysics and luminescence quenching of carbon dots derived from lemon juice and glycerol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 209:14-21. [PMID: 30343105 DOI: 10.1016/j.saa.2018.10.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/08/2018] [Accepted: 10/14/2018] [Indexed: 06/08/2023]
Abstract
During the past decade, carbon dots have emerged as a fascinating class of luminescent nanomaterials with versatile application potentials in bioimaging, labeling, photocatalysis and optoelectronics. Currently, intensive research is concentrated on understanding the intriguing optical properties of these promising materials and their utility as luminescence sensors. In this article, we describe the photoluminescence of carbon dots obtained from a bioresource (lemon juice) and from a small molecule precursor (glycerol), especially the quenching of their emission by nitrobenzene and Hg2+ ions, as representative cases. Stern-Volmer analysis using steady-state and time-resolved emission measurements, suggests the involvement of both transient quenching and dynamic quenching mechanisms in the interaction of the carbon dots with nitrobenzene. The radius of the quenching sphere is estimated to be slightly greater than the contact distances between the respective carbon dots and nitrobenzene, which is in reasonable agreement with the "sphere of action" model for transient quenching. In the interaction with Hg2+ ions, electrostatic attraction plays a major role, and the quenching mechanism involves predominantly static and dynamic quenching. The static quenching constant matches well with the binding constant of the carbon dots with the metal ion.
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Affiliation(s)
- Poojan Milan Gharat
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Haridas Pal
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Sharmistha Dutta Choudhury
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India.
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Knaapila M, Stewart B, Costa T, Rogers SE, Pragana J, Fonseca SM, Valente AJM, Ramos ML, Murtinho D, Pereira JC, Mallavia R, Burrows HD. Incorporation of a Cationic Conjugated Polyelectrolyte CPE within an Aqueous Poly(vinyl alcohol) Sol. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01895] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Matti Knaapila
- Department
of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Beverly Stewart
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Telma Costa
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Sarah E. Rogers
- Rutherford
Appleton
Laboratory, ISIS STFC, Chilton OX11 0QX, Oxon, U.K
| | - Joana Pragana
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Sofia M. Fonseca
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Artur J. M. Valente
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - M. Luisa Ramos
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Dina Murtinho
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Jorge Costa Pereira
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Ricardo Mallavia
- Instituto
de Biología Molecular y Celular, Universidad Miquel Hernandez de Elche, Avda. de la Universidad s/n, 03202 Elche, Spain
| | - Hugh D. Burrows
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
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Li CP, Chen J, Liu PW, Du M. Structural diversity of 5-methylnicotinate coordination assemblies regulated by metal-ligating tendency and metal-dependent anion effect. CrystEngComm 2014. [DOI: 10.1039/c4ce00187g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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