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Ahamed S, Mahato M, Tohora N, Sultana T, Sahoo R, Ghanta S, Das SK. A PET and ESIPT-communicated ratiometric, turn-on chromo-fluorogenic sensor for rapid and sensitive detection of sarin gas mimic, diethylchlorophosphate. Talanta 2023; 258:124448. [PMID: 36940571 DOI: 10.1016/j.talanta.2023.124448] [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: 12/22/2022] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023]
Abstract
Fast and precise identification of toxic G-series nerve agents in the solution and vapor phase is urgently needed to save human beings from unwanted wars and terrorist attacks, which is challenging to execute practically. In this article, we have designed and synthesized a sensitive and selective phthalimide-based chromo-fluorogenic sensor, DHAI, by a simple condensation process that shows ratiometric and turns on chromo-fluorogenic behavior towards Sarin gas mimic diethylchlorophosphate (DCP) in liquid and vapor phases, respectively. A colorimetric change, from yellow to colorless, is observed in the DHAI solution due to the introduction of DCP in daylight. A remarkable cyan color photoluminescence enhancement is noticed in the presence of DCP in the DHAI solution, which is observable to the naked under a portable 365 nm UV lamp. The mechanistic aspects of the detection of DCP by employing DHAI have been revealed by time-resolved photoluminescence decay analysis and 1H NMR titration investigation. Our probe DHAI exhibits linear photoluminescence enhancement from 0 to 500 μM with a detection limit of nanomolar range from non-aqueous to semi-aqueous media. For practical utility, a DHAI-stained test kit employing Whatman-41 filter paper has been fabricated and used as a portable and displayable photonic device for on-site detection of Sarin gas surrogate, DCP. Also, a dip-stick experiment has been demonstrated to identify the vapor of Sarin gas mimics DCP colorimetrically and fluorometrically. The concentrations of DCP in various water samples have been evaluated with the help of a standard fluorescence curve for real sample analysis.
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Affiliation(s)
- Sabbir Ahamed
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
| | - Manas Mahato
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
| | - Najmin Tohora
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
| | - Tuhina Sultana
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
| | - Rajkumar Sahoo
- Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, India
| | - Susanta Ghanta
- Department of Chemistry, National Institute of Technology, Agartala, Tripura, 799046, India
| | - Sudhir Kumar Das
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India.
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A 4-Aminophthalimide Derive Smart Molecule for Sequential Detection of Aluminum Ions and Picric Acid. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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3
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Sultana T, Mahato M, Tohora N, Ahamed S, Pramanik P, Ghanta S, Kumar Das S. A Phthalimide-based Turn on Fluorosensor for Selective and Rapid Detection of G-Series Nerve Agent’s Mimics. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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4
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Banerjee S, Akhuli A, Sarkar M. Probing the Influence of Alkyl Chain Length on the Aggregation Behaviour of Some Naphthalene Sulphonamide Derivatives through Spectroscopic and Microscopic Studies. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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5
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Pramanik P, Sahoo R, Kumar Das S, Halder M. Fabrication of a GUMBOS-based acid-base indicator: smart probe for sensing acids and bases in any solvent. Phys Chem Chem Phys 2020; 22:28045-28054. [PMID: 33367395 DOI: 10.1039/d0cp03157g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
This report outlines the synthesis of an ionic liquid-based pH-responsive indicator to sense acids or bases in non-polar as well as polar solvents. Herein, we have assembled a new ionic liquid (IL) comprised of a group of uniform materials based on organic salts (GUMBOS) by attaching a quaternary phosphonium ionic liquid with a very common acid-base indicator, methyl orange, via simple ion-exchange reaction. This integrated IL-based indicator is highly soluble in less polar solvents and exhibits good sensitivity toward the presence of acids/bases in those media. Furthermore, this indicator has been exploited in determining the dissociation constants of several acids in non-aqueous aprotic solvents by overlapping indicator method and hence this report provides essential information toward the understanding of many fundamental chemical reactions. This report has further scope for the synthesis of novel aqueous suspended nanomaterials, i.e., the nanoparticles derived from GUMBOS (nanoGUMBOS) by a simple flash nano-precipitation method. The nanomaterial has been well characterized by different spectroscopic and microscopic studies. The obtained nanoparticles also exhibit substantial pH-responsive behaviors in aqueous medium and show better susceptibility as compared to the free organic indicator. Thus, this report explores detailed studies on the IL-based indicator in sensing the acidity/basicity of various media.
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Affiliation(s)
- Prabal Pramanik
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
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Yordanov D, Deneva V, Georgiev A, Crochet A, Fromm KM, Antonov L. Indirect solvent assisted tautomerism in 4-substituted phthalimide 2-hydroxy-Schiff bases. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 237:118416. [PMID: 32388169 DOI: 10.1016/j.saa.2020.118416] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 04/21/2020] [Accepted: 04/25/2020] [Indexed: 06/11/2023]
Abstract
The paper presents the synthesis and characterization of two 4-substituted phthalimide 2-hydroxy-Schiff bases containing salicylic (4) and 2-hydroxy-1-naphthyl (5) moieties. The structural differences of 2-hydroxyaryl substituents, resulting in different enol/keto tautomeric behaviour, depending on the solvent environment were studied by absorption UV-Vis spectroscopy. Compound 5 is characterized by a solvent-dependent tautomeric equilibrium (KT in toluene = 0.12, acetonitrile = 0.22 and MeOH = 0.63) while no tautomerism is observed in 4. Ground state theoretical DFT calculations by using continuum solvation in MeOH indicate an energy barrier between enol/keto tautomer 5.6 kcal mol-1 of 4 and 0.63 kcal mol-1 of 5, which confirms the experimentally observed impossibility of the tautomeric equilibrium in the former. The experimentally observed specific solvent effect in methanol is modeled via explicit solvation. The excited state intramolecular proton transfer (ESIPT) was investigated by steady state fluorescence spectroscopy. Both compounds show a high rate of photoconversion to keto tautomers hence keto emissions with large Stokes shifts in five alcohols (MeOH, EtOH, 1-propanol, 1-butanol, and 1-pentanol) and various aprotic solvents (toluene, dichlormethane, acetone, AcCN). According to the excited state TDDFT calculations using implicit solvation in MeOH, it was found that enol tautomers of 4 and 5 are higher in energy compared to the keto ones, which explains the origin of the experimentally observed keto form emission.
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Affiliation(s)
- Dancho Yordanov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Vera Deneva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Anton Georgiev
- Department of Organic Chemistry, University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria; Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria.
| | - Aurelien Crochet
- Department of Chemistry and Fribourg Center for Nanomaterials FriMat, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - Katharina M Fromm
- Department of Chemistry and Fribourg Center for Nanomaterials FriMat, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - Liudmil Antonov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; Institute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria.
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Georgiev A, Yordanov D, Dimov D, Zhivkov I, Nazarova D, Weiter M. Azomethine phthalimides fluorescent E→Z photoswitches. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112443] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Self-assembling behavior of pyrimidine analogues: Unveiling the factors behind morphological diversity. J Colloid Interface Sci 2018; 522:63-73. [DOI: 10.1016/j.jcis.2018.03.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 11/22/2022]
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9
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Chawla M, Autiero I, Oliva R, Cavallo L. Energetics and dynamics of the non-natural fluorescent 4AP:DAP base pair. Phys Chem Chem Phys 2018; 20:3699-3709. [DOI: 10.1039/c7cp07400j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Quantum mechanics and molecular dynamics methods are used to compare the non-natural 4AP–DAP base pair to natural base pairs.
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Affiliation(s)
- Mohit Chawla
- King Abdullah University of Science and Technology (KAUST)
- Physical Sciences and Engineering Division
- Thuwal 23955-6900
- Saudi Arabia
| | - Ida Autiero
- King Abdullah University of Science and Technology (KAUST)
- Physical Sciences and Engineering Division
- Thuwal 23955-6900
- Saudi Arabia
| | - Romina Oliva
- Department of Sciences and Technologies
- University Parthenope of Naples
- Centro Direzionale Isola C4
- Naples
- Italy
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST)
- Physical Sciences and Engineering Division
- Thuwal 23955-6900
- Saudi Arabia
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Saha S, Majhi D, Bhattacharyya K, Preeyanka N, Datta A, Sarkar M. Evidence of homo-FRET in quantum dot–dye heterostructured assembly. Phys Chem Chem Phys 2018; 20:9523-9535. [DOI: 10.1039/c7cp07233c] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Evidence of homo-FRET in inorganic–organic hybrid hetero-structured assembly is demonstrated
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Affiliation(s)
- Samyabrata Saha
- School of Chemical Sciences
- National Institute of Science Education and Research
- HBNI
- Bhubaneswar
- India
| | - Debashis Majhi
- School of Chemical Sciences
- National Institute of Science Education and Research
- HBNI
- Bhubaneswar
- India
| | | | - Naupada Preeyanka
- School of Chemical Sciences
- National Institute of Science Education and Research
- HBNI
- Bhubaneswar
- India
| | - Ayan Datta
- Department of Spectroscopy
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Moloy Sarkar
- School of Chemical Sciences
- National Institute of Science Education and Research
- HBNI
- Bhubaneswar
- India
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11
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Banerjee P, Mukherjee D, Maiti TK, Sarkar N. Unveiling the Self-Assembling Behavior of 5-Fluorouracil and its N,N'-Dimethyl Derivative: A Spectroscopic and Microscopic Approach. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10978-10988. [PMID: 28930474 DOI: 10.1021/acs.langmuir.7b02378] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Under physiological conditions, 5-fluorouracil (5-FU), an anticancer drug, self-assembles into fibrils by strong hydrogen-bonding network, whereas its N,N'-dimethyl derivative, 5-fluoro-1,3-dimethyluracil (5-FDMU), does not make fibrils due to lack of strong hydrogen-bonding motif. In vitro, 5-FU self-assembly is sensitive to physicochemical conditions like the pH and ionic strength of the solution, which tune the strength of the noncovalent driving forces. Here we report a surprising finding that the buffer, which is necessary to control the pH and is typically considered to be inert, also significantly influences 5-FU self-assembly, which indicates an important role of counterions in the fibril formation. We have also monitored concentration- and time-dependent fibrillar growth of 5-FU. Again, fibril growth process is probed under dynamic conditions using microfluidic platform. The self-assembly of 5-FU compared with its N,N'-dimethyl derivative shows lower cytotoxicity to the cultured human erythroleukemic cells (K562 cells), which plausibly states the reason behind the greater effectiveness of 5-FU derivative drugs than 5-FU itself.
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Affiliation(s)
- Pavel Banerjee
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
| | - Devdeep Mukherjee
- Department of Biotechnology, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
| | - Tapas Kumar Maiti
- Department of Biotechnology, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
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12
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Esnal I, Duran-Sampedro G, Agarrabeitia AR, Bañuelos J, García-Moreno I, Macías MA, Peña-Cabrera E, López-Arbeloa I, de la Moya S, Ortiz MJ. Coumarin-BODIPY hybrids by heteroatom linkage: versatile, tunable and photostable dye lasers for UV irradiation. Phys Chem Chem Phys 2015; 17:8239-47. [PMID: 25732124 DOI: 10.1039/c5cp00193e] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Linking amino and hydroxycoumarins to BODIPYs through the amino or hydroxyl group lets the easy construction of unprecedented photostable coumarin-BODIPY hybrids with broadened and enhanced absorption in the UV spectral region, and outstanding wavelength-tunable laser action within the green-to-red spectral region (∼520-680 nm). These laser dyes allow the generation of a valuable tunable UV (∼260-350 nm) laser source by frequency doubling, which is essential to study accurately the photochemistry of biological molecules under solar irradiation. The tunability is achieved by selecting the substitution pattern of the hybrid. Key factors are the linking heteroatom (nitrogen vs. oxygen), the number of coumarin units joined to the BODIPY framework and the involved linking positions.
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Affiliation(s)
- I Esnal
- Depto. de Química Física, Universidad del Pais Vasco-EHU, Apartado 644, 48080, Bilbao, Spain.
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13
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Mazumdar P, Das D, Sahoo GP, Salgado-Morán G, Misra A. Aggregation induced emission enhancement of 4,4′-bis(diethylamino)benzophenone with an exceptionally large blue shift and its potential use as glucose sensor. Phys Chem Chem Phys 2015; 17:3343-54. [DOI: 10.1039/c4cp03772c] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Aggregation induced emission enhancement of 4,4′-bis(diethylamino)benzophenone with exceptionally blue shift is observed and it is used for potential glucose sensor.
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Affiliation(s)
- Prativa Mazumdar
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102
- India
| | - Debasish Das
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102
- India
| | - Gobinda Prasad Sahoo
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102
- India
| | - Guillermo Salgado-Morán
- Departamento de Ciencias Qumícas
- Facultad de Ciencias Exactas
- Universidad Andrés Bello
- Concepción
- Chile
| | - Ajay Misra
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102
- India
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14
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Dandpat SS, Sarkar M. Investigating the molecular and aggregated states of a drug molecule rutaecarpine using spectroscopy, microscopy, crystallography and computational studies. Phys Chem Chem Phys 2015; 17:13992-4002. [DOI: 10.1039/c5cp01980j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present study demonstrates the aggregation behavior of rutaecarpine and the effect of surface active ionic liquids on the dissociation of the aggregates.
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Affiliation(s)
- Shiba Sundar Dandpat
- School of Chemical Sciences
- National Institute of Science Education and Research
- Bhubaneswar 751005
- India
| | - Moloy Sarkar
- School of Chemical Sciences
- National Institute of Science Education and Research
- Bhubaneswar 751005
- India
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15
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Jha G, N A, Rahaman A, Sarkar M. Fluoride ion sensing in aqueous medium by employing nitrobenzoxadiazole-postgrafted mesoporous silica nanoparticles (MCM-41). Phys Chem Chem Phys 2014; 17:3525-33. [PMID: 25535925 DOI: 10.1039/c4cp05350h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mesoporous silica-based inorganic-organic hybrid material (NBD-AP-MCM) has been designed and developed as a fluorescent chemosensor for the detection of fluoride in aqueous medium. The system was developed by covalently anchoring 7-nitro-2,1,3-benzoxadiazole (NBD) dye onto the surface of mesoporous silica nanoparticles, MCM-41. The system was characterized using several conventional analytical methods comprising spectroscopic, microscopic and thermo-gravimetric techniques. The sensory action of the material was investigated by carrying out steady state absorbance, fluorescence and time resolved fluorescence studies on the system in the absence and presence of several biologically and environmentally important anions in aqueous solution. The photophysical data of the present system (NBD-AP-MCM) have also been compared with the free dye (NBD) molecules. A significant decrease in the fluorescence quantum yield of the fluorophore in the hybrid material NBD-AP-MCM has been observed as compared to the unbound NBD. The decrease in fluorescence efficiency in the hybrid material is attributed to the aggregation caused quenching (ACQ) phenomenon. Interestingly, the system displays more than six-fold fluorescence enhancement in the presence of fluoride ions in aqueous solution. Enhancement of the fluorescence lifetime of the fluorescing moiety (NBD) has also been observed during fluorescence time-resolved studies. No significant optical changes have been observed with other commonly encountered anions rendering the present system highly selective towards fluoride detection. The fluorescence enhancement has been attributed to the cleavage of Si-O bonds due to the addition of fluoride. The silyl cleavage detaches the fluorophore from the solid support thereby making the fluorophore "free" in solution, which in turn recovers its original fluorescence which was decreased because of the aggregation on the solid silica support. Furthermore, the suitability of the present system in cellular imaging has also been demonstrated.
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Affiliation(s)
- Gaurav Jha
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India.
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