1
|
Das J, Ghosh M, Ghosh B, Mandal P, Maji S, Das D. A single probe for solvent dependent optical recognition of iron(II/III) and arsenite: discrimination between iron redox states with single crystal X-ray structure evidence. Sci Rep 2023; 13:18039. [PMID: 37865670 PMCID: PMC10590385 DOI: 10.1038/s41598-023-43154-2] [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: 05/19/2023] [Accepted: 09/20/2023] [Indexed: 10/23/2023] Open
Abstract
The detection and discrimination of Fe2+ and Fe3+ ions have been investigated using a simple probe (L), produced by the condensation of ethylenediamine and 3-ethoxysalicyaldehyde. Single crystal X-ray structures demonstrate that L interacts with Fe2+ and Fe3+. In aqueous-DMSO media, the L recognises AsO2- by fluorescence and colorimetry techniques. The AsO2- aided PET inhibition and H-bond assisted chelation enhanced fluorescence (CHEF) boost fluorescence by 91-fold. The L can detect 0.354 ppb Fe2+, 0.22 ppb Fe3+ and 0.235 ppt AsO2-.
Collapse
Affiliation(s)
- Jayanta Das
- Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, 713104, India
| | - Milan Ghosh
- Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, 713104, India
| | - Biplab Ghosh
- Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, 713104, India
| | - Prasenjit Mandal
- Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, 713104, India
| | - Sangita Maji
- Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, 713104, India
| | - Debasis Das
- Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, 713104, India.
| |
Collapse
|
2
|
Karuppiah K, Muniyasamy H, Nelson M, Selvaraj M, Sepperumal M, Ayyanar S. A novel indolehydrazone appended salicyaldehyde platform for detection of multianalytes (Al3+, Zn2+ and F- ions): Live cell imaging. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2021.109080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
3
|
Design and synthesis of new salicylhydrazone tagged indole derivative for fluorometric sensing of Zn2+ ion and colorimetric sensing of F− ion: Applications in live cell imaging. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105543] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
4
|
Panja A, Raza R, Ghosh K. Cholesterol‐Coupled Diazine‐Phenol Gelator: Cyanide Sensing, Phase‐Selective Gelation in Oil Spill Recovery and Dye Adsorption. ChemistrySelect 2020. [DOI: 10.1002/slct.202002868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Atanu Panja
- Department of Chemistry University of Kalyani Kalyani 741235 India
| | - Rameez Raza
- Department of Chemistry University of Kalyani Kalyani 741235 India
| | - Kumaresh Ghosh
- Department of Chemistry University of Kalyani Kalyani 741235 India
| |
Collapse
|
5
|
Lasitha P, Dasgupta S, Naresh Patwari G. Unraveling the Origin of Differentiable 'Turn-On' Fluorescence Sensing of Zn 2+ and Cd 2+ Ions with Squaramides. Chemphyschem 2020; 21:1564-1570. [PMID: 32488932 DOI: 10.1002/cphc.202000332] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/01/2020] [Indexed: 11/09/2022]
Abstract
A squaramide ring conjugated with Schiff-bases decorated with hydroxy and methoxy functional groups differentially senses zinc and cadmium ions, which turn on the fluorescence. The feebly emitting free ligands light up in the presence of zinc and cadmium acetates, with the acetate ion playing a pivotal role as a conjugate anion. The selective and differentiable emission responses for zinc and cadmium ions make these ligands efficient multi-analyte sensing agents. Furthermore, these ligands could be used to differentially sense zinc and cadmium ions even in aqueous environments. The NMR investigations reveal marginal differences in the binding of zinc and cadmium ions to the ligands, whereas density functional theory calculations suggest the different extent of ligand-to-metal charge transfer (LMCT) contributes to the differential behavior. Finally, comparison of the excited-state dynamics of free ligand and the metal complexes reveal the appearance of longer lifetime (about 500-700 ps) component with complexation, due to rigidified molecular skeleton, thereby impeding the non-radiative processes.
Collapse
Affiliation(s)
- P Lasitha
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - S Dasgupta
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - G Naresh Patwari
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| |
Collapse
|
6
|
Chang Y, Li B, Mei H, Xu K, Xie X, Yang L. A novel reversible fluorescent probe for Zinc(II) ion and bioimaging in living cells. Supramol Chem 2020. [DOI: 10.1080/10610278.2020.1749627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yongxin Chang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, P. R. China
| | - Bai Li
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, P. R. China
| | - Huihui Mei
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, P. R. China
| | | | - Xinmei Xie
- Pharmaceutical Institute, Henan University, Kaifeng, China
| | - Li Yang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, P. R. China
| |
Collapse
|
7
|
Banerjee M, Ghosh M, Ta S, Ghosh S, Das D. Tuning uracil derivatives for the AIE-based detection of pyrene at a nano-molar level: single-crystal X-ray structure and DFT support. NEW J CHEM 2020. [DOI: 10.1039/d0nj03024d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Single crystal X-ray structurally characterized azo-uracil derivative (L) is explored for the selective detection of pyrene via aggregation-induced emission (AIE) with 99-fold fluorescence enhancement.
Collapse
Affiliation(s)
- Mahuya Banerjee
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Milan Ghosh
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Sabyasachi Ta
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Subhasis Ghosh
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Debasis Das
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| |
Collapse
|
8
|
Kukułka M, Srebro-Hooper M, Mitoraj MP. Substituent Effect on Conformational Preferences in Ground and Excited States of Selected Schiff Bases: An Insight from Theoretical Calculations. J Phys Chem A 2019; 124:63-73. [DOI: 10.1021/acs.jpca.9b10254] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mercedes Kukułka
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Monika Srebro-Hooper
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Mariusz P. Mitoraj
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| |
Collapse
|
9
|
Manawar RB, Gondaliya MB, Shah MK, Jotani MM, Tiekink ERT. 2-{(1 E)-[( E)-2-(2,6-Di-chloro-benzyl-idene)hydrazin-1-yl-idene]meth-yl}phenol: crystal structure, Hirshfeld surface analysis and computational study. Acta Crystallogr E Crystallogr Commun 2019; 75:1423-1428. [PMID: 31636969 PMCID: PMC6775727 DOI: 10.1107/s2056989019012349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 09/04/2019] [Indexed: 11/13/2022]
Abstract
The title Schiff base compound, C14H10Cl2N2O, features an E configuration about each of the C=N imine bonds. Overall, the mol-ecule is approximately planar with the dihedral angle between the central C2N2 residue (r.m.s. deviation = 0.0371 Å) and the peripheral hy-droxy-benzene and chloro-benzene rings being 4.9 (3) and 7.5 (3)°, respectively. Nevertheless, a small twist is evident about the central N-N bond [the C-N-N-C torsion angle = -172.7 (2)°]. An intra-molecular hy-droxy-O-H⋯N(imine) hydrogen bond closes an S(6) loop. In the crystal, π-π stacking inter-actions between hy-droxy- and chloro-benzene rings [inter-centroid separation = 3.6939 (13) Å] lead to a helical supra-molecular chain propagating along the b-axis direction; the chains pack without directional inter-actions between them. The calculated Hirshfeld surfaces point to the importance of H⋯H and Cl⋯H/H⋯Cl contacts to the overall surface, each contributing approximately 29% of all contacts. However, of these only Cl⋯H contacts occur at separations less than the sum of the van der Waals radii. The aforementioned π-π stacking inter-actions contribute 12.0% to the overall surface contacts. The calculation of the inter-action energies in the crystal indicates significant contributions from the dispersion term.
Collapse
Affiliation(s)
- Rohit B. Manawar
- Chemical Research Laboratory, Department of Chemistry, Saurashtra University, Rajkot - 360005, Gujarat, India
| | - Mitesh B. Gondaliya
- Chemical Research Laboratory, Department of Chemistry, Saurashtra University, Rajkot - 360005, Gujarat, India
| | - Manish K. Shah
- Chemical Research Laboratory, Department of Chemistry, Saurashtra University, Rajkot - 360005, Gujarat, India
| | - Mukesh M. Jotani
- Department of Physics, Bhavan’s Sheth R. A. College of Science, Ahmedabad, Gujarat - 380001, India
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| |
Collapse
|
10
|
Karar M, Paul S, Biswas B, Paul P, Majumdar T, Mallick A. Loading, Unloading and Receiving of Selected Molecules with Nanomolar Sensitivity in Molecular Communication: Unprompted Carrier‐to‐Carrier Transformation. ChemistrySelect 2019. [DOI: 10.1002/slct.201902232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Monaj Karar
- Department of ChemistryUniversity of Kalyani, Nadia West Bengal 741235 India
| | - Suvendu Paul
- Department of ChemistryUniversity of Kalyani, Nadia West Bengal 741235 India
| | - Bhaskar Biswas
- Department of ChemistryUniversity of North Bengal, Siliguri West Bengal 734013 India
| | - Provakar Paul
- Department of ChemistryUniversity of Kalyani, Nadia West Bengal 741235 India
| | - Tapas Majumdar
- Department of ChemistryUniversity of Kalyani, Nadia West Bengal 741235 India
| | - Arabinda Mallick
- Department of ChemistryKazi Nazrul University, Asansol West Bengal 713340 India
| |
Collapse
|
11
|
Singh A, Girish Gowda R, Trivedi DR. Substituent effect on colorimetric detection of biologically and environmentally relevant anions: Insight in real-life applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 219:517-529. [PMID: 31078819 DOI: 10.1016/j.saa.2019.04.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
A new set of chromogenic anion receptors R1-R4 have been synthesized with a different substituent, including electron withdrawing (nitro moiety in R1), conjugated group (naphthyl in R2), and electron donating (methyl in R3), respectively. The receptors R1-R4 exhibited very good sensitivity towards the F- and AcO- anions in the DMSO. In addition, R1 showed selectivity towards H2PO4- ions over other tested anions. R1 especially acted as an effective sensor for sodium salts of F-, AcO-, AsO2-, and AsO42- ions in an aqueous medium due to the presence of two electron-withdrawing nitro substituents, which showed hydrogen bond donor tendency and acidity of the OH proton. This result indicates that R1 is highly capable of competing with an aqueous medium to detect anions without counter Na+ ion interference. Interestingly, R1 displays solvatochromic property in the presence of AcO- ions in different aprotic solvents. Additionally, the receptor R1 shows high binding affinity towards AcO- ions in the buffer medium (DMSO: HEPES, 9:1 v/v), which displayed remarkable colour change from pale yellow to blue with a large ∆λred shift of 170 nm. The CV studies reveal the deprotonation of the -NH proton upon interaction with the AcO- ions. The receptor R1 is subjected to practical application to sense F- and AsO2- ions using the test strip. In addition, the receptor R1 proves itself as a potential applicant for the detection of F- ions quantitatively in commercially available mouthwash.
Collapse
Affiliation(s)
- Archana Singh
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India
| | - R Girish Gowda
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India; Sri Dharmasthala Manjunatheshwara College (Autonomous), Ujire, 574240, Karnataka, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India.
| |
Collapse
|
12
|
Bhattacharyya A, Makhal SC, Guchhait N. Evaluating the merit of a diethylamino coumarin-derived thiosemicarbazone as an intramolecular charge transfer probe: efficient Zn(ii) mediated emission swing from green to yellow. Photochem Photobiol Sci 2019; 18:2031-2041. [PMID: 31292572 DOI: 10.1039/c9pp00108e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis and photophysical properties of a coumarin based probe (1E)-1-(1-(7-(diethylamino)-2-oxo-2H-chromen-3-yl) ethylidene) thiosemicarbazide (DIDOT). DIDOT shows a polarity dependent change in the emission maxima in the solution phase. This is explained by the increased dipole moment in the excited state by an intramolecular charge transfer (ICT) process. DIDOT can successfully detect Zn(ii) in aqueous methanol by a shift in the charge transfer emission maxima from approximately 506 to approximately 535 nm. This shift led to a change in the color of the emission from green to yellow under UV-light. The mechanism of Zn(ii) detection has been delineated using electrospray ionization-mass spectrometry (ESI-MS), Fourier-transform infrared spectroscopy (FTIR) and fluorescence time resolved studies coupled with theoretical calculations. The increment in the charge transfer in the Zn(ii) complex of DIDOT over the bare receptor as a consequence of conformational locking was determined to be the underlying cause of the cation detection phenomenon. The limit of detection and binding constant values of DIDOT towards Zn(ii) were approximately 3 × 10-8 M and 2.35 × 105 M-1 respectively. Finally, the practical utility of DIDOT has been demonstrated by successful detection and quantification of Zn(ii) in spiked water samples.
Collapse
|
13
|
Banerjee M, Ta S, Ghosh M, Ghosh A, Das D. Sequential Fluorescence Recognition of Molybdenum(VI), Arsenite, and Phosphate Ions in a Ratiometric Manner: A Facile Approach for Discrimination of AsO 2 - and H 2PO 4. ACS OMEGA 2019; 4:10877-10890. [PMID: 31460185 PMCID: PMC6648501 DOI: 10.1021/acsomega.9b00377] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 05/15/2019] [Indexed: 05/17/2023]
Abstract
An amide-based smart probe (L) is explored for nanomolar detection of Mo(VI) ion in a ratiometric manner, involving hydrogen-bond-assisted chelation-enhanced fluorescence process through inhibition of photoinduced electron transfer process. The recognition of Mo(VI) is associated with a 17-fold fluorescence enhancement and confirmed by single-crystal X-ray diffraction of the resulting Mo(VI) complex (M1). Further, M1 selectively recognizes arsenite through green emission of their adduct (C1) with an 81-fold fluorescence enhancement. Interestingly, dihydrogen phosphate causes dissociation of C1 back to free L having weak fluorescence. The methods are fast, highly selective, and allow their bare eye visualization at physiological pH. All of the interactions have been substantiated by time-dependent density functional theory calculations to rationalize their spectroscopic properties. The corresponding lowest detection limits are 1.5 × 10-8 M for Mo(VI), 1.2 × 10-10 M for AsO2 -, and 3.2 × 10-6 M for H2PO4 -, whereas the respective association constants are 4.21 × 105 M-1 for Mo(VI), 6.49 × 104 M-1 for AsO2 -, and 2.11 × 105 M-1 for H2PO4 -. The L is useful for efficient enrichment of Mo(VI) from aqueous solution, while M1 efficiently removes AsO2 - from environmental samples by solid-phase extraction.
Collapse
Affiliation(s)
- Mahuya Banerjee
- Department
of Chemistry, The University of Burdwan, Burdwan 713104, West Bengal, India
| | - Sabyasachi Ta
- Department
of Chemistry, The University of Burdwan, Burdwan 713104, West Bengal, India
| | - Milan Ghosh
- Department
of Chemistry, The University of Burdwan, Burdwan 713104, West Bengal, India
| | - Avijit Ghosh
- Department
of Chemistry, University of Calcutta, Kolkata 700009, West Bengal, India
| | - Debasis Das
- Department
of Chemistry, The University of Burdwan, Burdwan 713104, West Bengal, India
| |
Collapse
|
14
|
A smart optical probe for detection and discrimination of Zn2+, Cd2+ and Hg2+ at nano-molar level in real samples. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.04.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
15
|
Ta S, Das S, Ghosh M, Banerjee M, Hira SK, Manna PP, Das D. A unique benzimidazole-naphthalene hybrid molecule for independent detection of Zn 2+ and N 3- ions: Experimental and theoretical investigations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 209:170-185. [PMID: 30388587 DOI: 10.1016/j.saa.2018.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/01/2018] [Accepted: 10/07/2018] [Indexed: 06/08/2023]
Abstract
Single crystal X-ray structurally characterized benzimidazole-naphthalene hybrid (NABI) functions as a unique dual analyte sensor that can detect Zn2+ cation and N3- anion independently. The NABI forms chelate with Zn2+ to inhibit internal charge transfer (ICT) and CHN isomerisation resulting chelation enhanced fluorescence (CHEF). On the other hand, the sensing of N3- is based on formation of supramolecular H-bonded rigid assembly. The association constant of NABI for Zn2+ and N3- ions are 19 × 104 M-1 and 11 × 102 M-1, respectively. Corresponding limit of detections (LOD) are 6.85 × 10-8 and 1.82 × 10-7 M, respectively. NABI efficiently detects intracellular Zn2+ and N3- ions with no cytotoxicity on J774A.1cells under fluorescence microscope. DFT studies unlock underlying spectroscopic properties of free NABI and Zn2+/N3- bound forms.
Collapse
Affiliation(s)
- Sabyasachi Ta
- Department of Chemistry, The University of Burdwan, West Bengal, India
| | - Sudipta Das
- Raina Swami Bholananda Vidyayatan, Purba Bardhaman, West Bengal, India
| | - Milan Ghosh
- Department of Chemistry, The University of Burdwan, West Bengal, India
| | - Mahuya Banerjee
- Department of Chemistry, The University of Burdwan, West Bengal, India
| | - Sumit Kumar Hira
- Department of Zoology, The University of Burdwan, West Bengal, India.
| | | | - Debasis Das
- Department of Chemistry, The University of Burdwan, West Bengal, India.
| |
Collapse
|
16
|
Optical sensors for detection of nano-molar Zn2+ in aqueous medium: Direct evidence of probe- Zn2+ binding by single crystal X-ray structures. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
17
|
Khanra S, Ta S, Ghosh M, Chatterjee S, Das D. Subtle structural variation in azine/imine derivatives controls Zn2+ sensitivity: ESIPT-CHEF combination for nano-molar detection of Zn2+ with DFT support. RSC Adv 2019; 9:21302-21310. [PMID: 35521340 PMCID: PMC9066000 DOI: 10.1039/c9ra03652k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 06/30/2019] [Indexed: 11/24/2022] Open
Abstract
Excited-state intra-molecular proton transfer (ESIPT)-active imine and azine derivatives, structurally characterised by XRD, and denoted L1, L2, L3 and L4, possess weak fluorescence. The interaction of these probes with Zn2+ turns ON the fluorescence to allow its nano-molar detection. Among the four ESIPT-active molecules, L2, L3 and L4 are bis-imine derivatives while L1 is a mono-imine derivative. Among the three bis-imine derivatives, one is symmetric (L3) while L2 and L4 are unsymmetrical. The lowest detection limits (DL) of L1, L2, L3 and L4 for Zn2+ are 32.66 nM, 36.16 nM, 15.20 nM and 33.50 nM respectively. All the probes bind Zn2+ (105 M−1 order) strongly. Computational studies explore the orbital level interactions responsible for the associated photo-physical processes. Single crystal X-ray structurally characterised ESIPT-active weakly fluorescent imine and azine derivatives undergo Zn2+ assisted turn ON fluorescence.![]()
Collapse
Affiliation(s)
- Somnath Khanra
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Sabyasachi Ta
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Milan Ghosh
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | | | - Debasis Das
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| |
Collapse
|
18
|
Liang Y, Diao L, Wang R, Wang N, Pu S. A bifunctional probe for Al3+ and Zn2+ based on diarylethene with an ethylimidazo[2,1-b]thiazole-6-hydrazide unit. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.11.066] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
19
|
Ghosh M, Ta S, Lohar S, Das S, Brandão P, Felix V, Das D. Exploring aggregation-induced emission through tuning of ligand structure for picomolar detection of pyrene. J Mol Recognit 2018; 32:e2771. [PMID: 30515937 DOI: 10.1002/jmr.2771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/09/2018] [Accepted: 10/26/2018] [Indexed: 11/09/2022]
Abstract
Tuning of ligand structures through controlled variation of ring number in fused-ring aromatic moiety appended to antipyrine allows detection of 7.8 × 10-12 M pyrene via aggregation-induced emission (AIE) associated with 101-fold fluorescence enhancement. In one case, antipyrine unit is replaced by pyridine to derive bis-methylanthracenyl picolyl amine. The structures of four molecules have been confirmed by single crystal X-ray diffraction analysis. Among them, pyrene-antipyrine conjugate (L) undergoes pyrene triggered inhibition of photo-induced electron transfer (PET) leading to water-assisted AIE.
Collapse
Affiliation(s)
- Milan Ghosh
- Department of Chemistry, The University of Burdwan, Bardhaman, India
| | - Sabyasachi Ta
- Department of Chemistry, The University of Burdwan, Bardhaman, India
| | - Sisir Lohar
- Department of Chemistry, T. D. B. College, Raniganj, Bardhaman, India
| | - Sudipta Das
- Department of Chemistry, Raina Swami Bholananda Vidyayatan, Bardhaman, India
| | - Paula Brandão
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Vitor Felix
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Debasis Das
- Department of Chemistry, The University of Burdwan, Bardhaman, India
| |
Collapse
|
20
|
Recognition of ceric ion in aqueous medium at pico-molar level: Colorimetric, fluorimetric and single crystal X-ray structural evidences. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.08.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
21
|
Ghosh M, Ta S, Banerjee M, Das D. Metal-Ion Displacement Approach for Optical Recognition of Thorium: Application of a Molybdenum(VI) Complex for Nanomolar Determination and Enrichment of Th(IV). ACS OMEGA 2018; 3:16089-16098. [PMID: 31458246 PMCID: PMC6643418 DOI: 10.1021/acsomega.8b01901] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 11/13/2018] [Indexed: 06/10/2023]
Abstract
An azine-based molybdenum (Mo(VI)) complex (M1) is exploited for selective detection of thorium (Th(IV)) ions through a metal-ion displacement protocol. Th(IV) displaces Mo(VI) from M1 instantly leading to the formation of the Th(IV) complex, having orange-red emission. Consequently, a red shift of the emission wavelength along with 41-fold fluorescence enhancement is observed. This unique method allows detection of Th(IV) as low as 1.5 × 10-9 M. The displacement of Mo(VI) from M1 by Th(IV) is established by spectroscopic studies and kinetically followed by the stopped-flow technique. The displacement binding constant for Th(IV) is notably strong, 4.59 × 106 M-1. Extraction of Th(IV) from aqueous solution to the ethyl acetate medium using M1 has been achieved. The silica-immobilized M1 efficiently enriches Th(IV) from its reservoir through solid-phase extraction. Computational studies (density functional theory) support experimental findings.
Collapse
Affiliation(s)
| | | | | | - Debasis Das
- E-mail: . Phone: +91-342-2533913. Fax: +91-342-2530452 (D.D.)
| |
Collapse
|
22
|
Banik A, Dash GK, Swain P, Kumar U, Mukhopadhyay SK, Dangar TK. Application of rice (Oryza sativa L.) root endophytic diazotrophic Azotobacter sp. strain Avi2 (MCC 3432) can increase rice yield under green house and field condition. Microbiol Res 2018; 219:56-65. [PMID: 30642467 DOI: 10.1016/j.micres.2018.11.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 11/07/2018] [Accepted: 11/22/2018] [Indexed: 10/27/2022]
Abstract
Use of plant-associated beneficial microbes, especially endophytes are getting popular day by day as they occupy a relatively privileged niche inside different plant tissues with lesser competition for food and shelter than rhizosphere. The effects of different physical factors like temperature, rainfall, and seasonal variation and UV radiation on plant growth promoting endophytic communities are less pronounced than those on the rhizospheric and phylloplane microbes. This present work has been compromised with further utilization of an indigenous rice (Oryza sativa L.) root endophytic Azotobacter sp. strain Avi2 (MCC 3432) (AzA) as a bio-formulation for sustainable rice production based on several physiological parameters (plant height, root length/weight, leaf area, yield, chlorophyll contain), in-vitro comparative plant growth promoting assays, greenhouse and field experiments (dry and wet season). Treatments with AzA exhibited higher yield as well as maximal chlorophyll fluorescence (Fm) of flag leaves in flowering and grain filling stages indicating higher photosynthetic rates. Scanning electron microscopic image of rice roots demonstrated accumulation of bacterial biofilm at the junction of primary and lateral root confirming the root-colonizing ability of the bacterium. The results of the study were quite encouraging as AzA exhibited better vegetative and reproductive growth of rice in pot and field experiment compared to formulated rhizospheric Azotobacter sp. (commercial product). Apart from that plants treated with AzA (supplemented 50% nitrogenous fertilizer of recommended dose) exhibited similar yield parameters when it was compared with the recommended dose of fertilizer (RDF; 120:60:60 mg N:P:K kg-1 soil/ without any bacterial). Therefore, it can be concluded that application of this plant growth promoting endophyte can reduce a substantial amount of N-fertilizer for field application.
Collapse
Affiliation(s)
- Avishek Banik
- Microbiology Department, School Of Science, RK University, Rajkot, 360020, Gujarat, India.
| | - Gautam Kumar Dash
- Crop Physiology and Biochemistry Division, ICAR-National Rice Research Institute, Cuttack, India
| | - Padmini Swain
- Crop Physiology and Biochemistry Division, ICAR-National Rice Research Institute, Cuttack, India
| | - Upendra Kumar
- Microbiology Laboratory, Crop Production Division, ICAR- National Rice Research Institute, Cuttack, Odisha, 753006, India
| | | | - Tushar Kanti Dangar
- Microbiology Laboratory, Crop Production Division, ICAR- National Rice Research Institute, Cuttack, Odisha, 753006, India.
| |
Collapse
|
23
|
Ghosh M, Ta S, Sanmartín Matalobos J, Das D. Azine based smart probe for optical recognition and enrichment of Mo(vi ). Dalton Trans 2018; 47:11084-11090. [PMID: 30039124 DOI: 10.1039/c8dt01812j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Single crystal X-ray structure-characterized azine derivative (L) was explored for the selective detection of molybdenum (Mo(vi)) cations through green fluorescence emission. The Mo(vi) cation assisted inhibition of photo-induced electron transfer (PET) resulted in a 37-fold fluorescence enhancement via chelation enhanced fluorescence (CHEF) that allows detection of Mo(vi) with concentration as low as 2 × 10-9 M. The chelation of Mo(vi) cations by L has been confirmed by the single crystal X-ray structure of the resulting complex. The binding constant of L for Mo(vi) is fairly high (1.33 × 106 M-1). Moreover, L is very efficient for enrichment of Mo(vi) from aqueous solution. Density functional theoretical (DFT) studies substantiate the experimental results.
Collapse
Affiliation(s)
- Milan Ghosh
- Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, India.
| | | | | | | |
Collapse
|
24
|
Karar M, Paul S, Biswas B, Majumdar T, Mallick A. A newly developed highly selective Zn 2+-AcO - ion-pair sensor through partner preference: equal efficiency under solitary and colonial situation. Dalton Trans 2018; 47:7059-7069. [PMID: 29744514 DOI: 10.1039/c8dt00362a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Unusual self-sorting of an ion-pair under highly crowded conditions driven by a synthesized intelligent molecule 2-((E)-(3-((E)-2-hydroxy-3-methoxybenzylideneamino)-2-hydroxypropyl imino)methyl)-6-methoxyphenol, hereafter HBP, is described. When a mixture of various metal salts was allowed to react with HBP, only a specific ion-pair ZnII/AcO- in the solution simultaneously reacted, resulting in high-fidelity ion-pair recognition of HBP. This phenomenon was evidenced by significant changes in the absorption spectra and huge enhancement in emission intensity of HBP. The property that one molecule preferring one particular cation-anion pair over others is a rare but interesting phenomenon. Thus, the potential to interact selectively with the targeted ion-pair resulting in the formation of a specific complex recognized HBP as a new class of molecule that might find future applications in real time and on-site monitoring and separation of new molecules.
Collapse
Affiliation(s)
- Monaj Karar
- Department of Chemistry, University of Kalyani, Nadia, West Bengal 741235, India.
| | - Suvendu Paul
- Department of Chemistry, University of Kalyani, Nadia, West Bengal 741235, India.
| | - Bhaskar Biswas
- Department of Chemistry, Surendranath College, Kolkata, West Bengal 700009, India
| | - Tapas Majumdar
- Department of Chemistry, University of Kalyani, Nadia, West Bengal 741235, India.
| | - Arabinda Mallick
- Department of Chemistry, Kashipur Michael Madhusudan Mahavidyalaya, Purulia, West Bengal 723132, India.
| |
Collapse
|
25
|
Ghosh M, Ta S, Banerjee M, Mahiuddin M, Das D. Exploring the Scope of Photo-Induced Electron Transfer-Chelation-Enhanced Fluorescence-Fluorescence Resonance Energy Transfer Processes for Recognition and Discrimination of Zn 2+, Cd 2+, Hg 2+, and Al 3+ in a Ratiometric Manner: Application to Sea Fish Analysis. ACS OMEGA 2018; 3:4262-4275. [PMID: 30023890 PMCID: PMC6044824 DOI: 10.1021/acsomega.8b00266] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 04/04/2018] [Indexed: 05/14/2023]
Abstract
A rhodamine-based smart probe (RHES) has been developed for trace-level detection and discrimination of multiple cations, viz. Al3+, Zn2+, Cd2+, and Hg2+ in a ratiometric manner involving photo-induced electron transfer-chelation-enhanced fluorescence-fluorescence resonance energy transfer processes. The method being very fast and highly selective allows their bare eye visualization at a physiological pH. The optimized geometry and spectral properties of RHES and its cation adducts have been analyzed by time-dependent density functional theory calculations. RHES detects as low as 1.5 × 10-9 M Al3+, 1.2 × 10-9 M Zn2+, 6.7 × 10-9 M Cd2+, and 1.7 × 10-10 M Hg2+, whereas the respective association constants are 1.33 × 105 M-1, 2.11 × 104 M-1, 1.35 × 105 M-1, and 4.09 × 105 M-1. The other common ions do not interfere. The probe is useful for intracellular imaging of Zn2+, Cd2+, and Hg2+ in squamous epithelial cells. RHES is useful for the determination of the ions in sea fish and real samples.
Collapse
Affiliation(s)
| | | | | | | | - Debasis Das
- E-mail: . Phone: +91-342-2533913. Fax: +91-342-2530452 (D.D.)
| |
Collapse
|
26
|
Singh A, Sahoo SK, Trivedi DR. Colorimetric anion sensors based on positional effect of nitro group for recognition of biologically relevant anions in organic and aqueous medium, insight real-life application and DFT studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:596-610. [PMID: 28779621 DOI: 10.1016/j.saa.2017.07.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/17/2017] [Accepted: 07/28/2017] [Indexed: 05/24/2023]
Abstract
A new six colorimetric receptors A1-A6 were designed and synthesized, characterized by typical common spectroscopic techniques like FT-IR, UV-Visible, 1H NMR, 13C NMR and ESI-MS. The receptor A1 and A2 exhibit a significant naked-eye response towards F- and AcO- ions in DMSO. Due to presences of the NO2 group at para and ortho position with extended π-conjugation of naphthyl group carrying OH as a binding site. Compared to receptor A2, A1 is extremely capable of detecting F- and AcO- ions present in the form of sodium salts in an aqueous medium. This is owed to the occurrence of NO2 group at para position induced in increasing the acidity of OH proton. Consequently, it easily gets deprotonated in aqueous media. The detection limit of receptor A1 was turned out to be 0.40 and 0.35ppm for F- and AcO- ions which is beneath WHO permission level (1.0ppm). Receptor A1 shows a solitary property of solvatochromism in different aprotic solvents in presence of AcO- ion. Receptor A1 depicts high selectivity towards AcO- ion in DMSO: HEPES buffer (9:1, v/v). Receptor A1 proved itself for real life application by detecting anion in solution and solid state. The binding mechanism of receptor A1 with AcO- and F- ions was monitored from 1HNMR titration and DFT study.
Collapse
Affiliation(s)
- Archana Singh
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India
| | - Suban K Sahoo
- Department of Applied Chemistry, S.V. National Institute Technology Surat, 395 007, Gujarat, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India.
| |
Collapse
|
27
|
Rezaeian K, Khanmohammadi H, Gholizadeh Dogaheh S. Studies on a multifunctional chromo-fluorogenic sensor for dual channel recognition of Zn2+ and CN− ions in aqueous media: mimicking multiple molecular logic gates and memory devices. NEW J CHEM 2018. [DOI: 10.1039/c7nj04216g] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new effectual naphthalene-based azomethine receptor has been systematically designed and synthesized as a selective colorimetric and fluorescent chemosensor for dual channel detection of cations and anions in aqueous environments.
Collapse
Affiliation(s)
- Khatereh Rezaeian
- Department of Chemistry
- Faculty of Science
- Arak University
- Arak 38156 8 8349
- Iran
| | - Hamid Khanmohammadi
- Department of Chemistry
- Faculty of Science
- Arak University
- Arak 38156 8 8349
- Iran
| | | |
Collapse
|
28
|
Ghosh M, Ghosh A, Ta S, Matalobos JS, Das D. ESIPT-Based Nanomolar Zn2+
Sensor for Human Breast Cancer Cell (MCF7) Imaging. ChemistrySelect 2017. [DOI: 10.1002/slct.201701102] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Milan Ghosh
- Department of Chemistry; The University of Burdwan; Burdwan, West Bengal India
| | - Abhijit Ghosh
- Department of Chemistry; The University of Burdwan; Burdwan, West Bengal India
| | - Sabyasachi Ta
- Department of Chemistry; The University of Burdwan; Burdwan, West Bengal India
| | - Jesús S. Matalobos
- Departamento de Química Inorgánica; Facultad de Química, Avda. Das Ciencias s/n; 15782 Santiago de Compostela Spain
| | - Debasis Das
- Department of Chemistry; The University of Burdwan; Burdwan, West Bengal India
| |
Collapse
|
29
|
Singh A, Trivedi DR. 'Naked-eye' detection of biologically important anions in aqueous media by colorimetric receptor and its real life applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 179:95-103. [PMID: 28235736 DOI: 10.1016/j.saa.2017.02.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 06/06/2023]
Abstract
A colorimetric receptor R 2-[(2-Hydroxy-naphthalen-1-ylmethylene)-hydrazonomethyl]-quinolin-8-ol has been designed and synthesized with good yield and characterized by the standard spectroscopic techniques such as FT-IR, UV-Visible, 1H NMR, 13C NMR and ESI-MS. The receptor R showed naked-eye detection and spectral change in the presence of F-, AcO- and H2PO4- over other anions. Interestingly, receptor R displaying high selective recognition towards F-, AcO- ion with a drastic color change from pale yellow to red in dry DMSO solvent and orange in mixed solvent DMSO/H2O (9:1, v/v). The behavior of receptor R towards F-, AcO- ion was investigated using UV-Vis and 1H NMR experiment. The detailed 1H NMR experiment result revealed that the receptor R is forming the hydrogen bonding between imine nitrogen and phenolic OH proton towards anions. The receptor R is able to detect sodium salts of flouride (NaF) and acetate (NaAcO) in aqueous medium and it exhibited dramatic color change from pale yellow to red. The receptor R demonstrated itself to be useful for real life application by detecting flouride and acetate ion in sea-water and commercially available product such as toothpaste, mouthwash and vinegar solution.
Collapse
Affiliation(s)
- Archana Singh
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal, Srinivasnagar, - 575025, Karnataka, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal, Srinivasnagar, - 575025, Karnataka, India.
| |
Collapse
|
30
|
Senthil Murugan A, Vidhyalakshmi N, Ramesh U, Annaraj J. A Schiff's base receptor for red fluorescence live cell imaging of Zn2+ ions in zebrafish embryos and naked eye detection of Ni2+ ions for bio-analytical applications. J Mater Chem B 2017; 5:3195-3200. [DOI: 10.1039/c7tb00011a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A quinoline based chemosensor for dual detection of Ni2+/Zn2+ ions and its bio-analytical applications.
Collapse
Affiliation(s)
- A. Senthil Murugan
- Department of Materials Science
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
- India
| | - N. Vidhyalakshmi
- Department of Molecular Biology
- School of biological Sciences
- Madurai Kamaraj University
- Madurai-21
- India
| | - U. Ramesh
- Department of Molecular Biology
- School of biological Sciences
- Madurai Kamaraj University
- Madurai-21
- India
| | - J. Annaraj
- Department of Materials Science
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
- India
| |
Collapse
|
31
|
Ghosh A, Adhikari S, Ta S, Banik A, Dangar TK, Mukhopadhyay SK, Matalobos JS, Brandão P, Félix V, Das D. Tuning of azine derivatives for selective recognition of Ag+ with the in vitro tracking of endophytic bacteria in rice root tissue. Dalton Trans 2016; 45:19491-19499. [DOI: 10.1039/c6dt03117j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
X-ray structurally characterized probes to track Ag+ in in vitro endophytic bacteria at rice root tissue and human breast cancer cells (MCF7).
Collapse
Affiliation(s)
- Abhijit Ghosh
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | | | - Sabyasachi Ta
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| | - Avishek Banik
- Microbiology Laboratory
- Crop production division
- ICAR – Central Rice Research Institute. Cuttack
- Odisha
- India
| | - Tushar Kanti Dangar
- Microbiology Laboratory
- Crop production division
- ICAR – Central Rice Research Institute. Cuttack
- Odisha
- India
| | | | | | - Paula Brandão
- Department of Chemistry
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Vítor Félix
- Department of Chemistry
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Debasis Das
- Department of Chemistry
- The University of Burdwan
- Burdwan
- India
| |
Collapse
|