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Gao L, Baryshnikov GV, Ali A, Kuklin A, Qian C, Zhang X, Chen F, Yi T, Wu H. Hydrophilic Cocrystals with Water Switched Luminescence. Angew Chem Int Ed Engl 2024; 63:e202318497. [PMID: 38179852 DOI: 10.1002/anie.202318497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
Utilizing water molecules to regulate the luminescence properties of solid materials is highly challenging. Herein, we develop a strategy to produce water-triggered luminescence-switching cocrystals by coassembling hydrophilic donors with electron-deficient acceptors, where 1,2,4,5-Tetracyanobenzene (TCNB) was used as the electron acceptor and pyridyl benzimidazole derivatives were used as the electron donors enabling multiple hydrogen-bonds. Two cocrystals, namely 2PYTC and 4PYTC were obtained and showed heat-activated emission, and such emission could be quenched or weakened by adding water molecules. The cocrystal structure exhibited the donor molecule that can form multiple hydro bonds with water and acceptor molecules due to the many nitrogen atoms of them. The analyses of the photophysical data, powder X-ray diffraction, and other data confirmed the reversible fluorescence "on-off" effects were caused by eliminating and adding water molecules in the crystal lattice. The density functional theory calculations indicate that the vibration of the O-H bond of water molecules in the cocrystal can absorb the excitation energy and suppress fluorescence. Furthermore, the obtained cocrystals also showed temperature, humidity, and H+ /NH4 + responsive emission behavior, which allows their applications as thermal and humidity sensors, and multiple information encryptions. This research paves the way for preparing intelligent hydrophilic organic cocrystal luminescent materials.
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Affiliation(s)
- Lei Gao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
- College of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou, 543000, P. R. China
| | - Glib V Baryshnikov
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174, Norrköping, Sweden
- Department of Chemistry and Nanomaterials Science, Bohdan Khmelnytsky National University, 18031, Cherkasy, Ukraine
| | - Amjad Ali
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174, Norrköping, Sweden
| | - Artem Kuklin
- Division of X-ray Photon Science, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
| | - Cheng Qian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Xianrui Zhang
- College of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou, 543000, P. R. China
| | - Fengkun Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Tao Yi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Hongwei Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
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Chamlagai D, Phanrang PT, Dkhar L, Mohan Rao K, Mitra S. Combined experimental and computational studies on the photophysical properties of systematically substituted polypyridyl based ligands on a benzene core. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114330] [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]
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Talaat W, Kaddah MMY, Keshk RM. Selective sensing of the nucleoside analogue, trifluridine and tipiracil in dosage form and biological matrices. Talanta 2022; 238:123009. [PMID: 34857343 DOI: 10.1016/j.talanta.2021.123009] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 10/22/2021] [Accepted: 10/27/2021] [Indexed: 11/29/2022]
Abstract
A new fluorescent sensor is introduced to analyze nucleoside analogue, trifluridine and tipiracil in tablets and biological fluids. The synthesized fluorophore exhibits good fluorescence at 446 nm after excitation at 257 nm. The interaction between the studied drugs and the reagent was a quenching effect. Different experimental parameters and the mechanism of quenching were discussed. The present method was utilized to analyze trifluridine and tipiracil raw materials and tablets over the concentration range of 20-1000 ng/mL and spiked biological fluids over the range of 30-1000 ng/mL. The method is selective, specific, and possesses good accuracy and high precision. The method is highly sensitive, with detection limits of 5.8 and 6.0 ng/mL for trifluridine and tipiracil, respectively, and quantitation limits of 17.7 and 18.1 ng/mL for trifluridine and tipiracil, respectively. In vivo analysis of trifluridine was achieved selectively and the mean pharmacokinetic parameters were studied.
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Affiliation(s)
- Wael Talaat
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt.
| | - Mohamed M Y Kaddah
- Pharmaceutical and Fermentation Industries Development Center, City of Scientific Research and Technological Applications, New Borg El-Arab, 21934, Alexandria, Egypt.
| | - Reda Mohammed Keshk
- Department of Chemistry, Faculty of Science, Damanhour University, Damanhour, Egypt.
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Rohman MA, Phanrang PT, Chamlagai D, Mitra S. Deciphering Spectroscopic and Structural Insights into the Photophysical Behavior of 2,2'-Dipyridylamine: An Efficient Environment Sensitive Fluorescence Probe. J Phys Chem A 2021; 125:6964-6975. [PMID: 34372657 DOI: 10.1021/acs.jpca.1c04772] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Excited state deactivation properties and the effects of solvent hydrogen bonding (HB) on the photophysical behavior of 2,2'-dypyridylamine (DPyA) were investigated by steady state and time-resolved fluorescence experiments, molecular docking, and density functional theory (DFT) calculations. In addition to the polarity effect, the contributions of solvent HB donation (HBD) acidity and HB acceptance (HBA) basicity to modulate the solvatochromic spectral properties were estimated from multiparametric linear regression analysis using Kamlet-Taft (KT) and Catalán formalisms. The importance of C-N bond torsion, leading to the trans → cis conversion, was manifested by substantial increase in DPyA fluorescence yield in the presence of cyclodextrin (CD) and glycerol. The unusually low fluorescence yield in aqueous medium was explained on the basis of synergistic effect of solvent hydrogen bonding combined with excited state conformational isomerization, which renders DPyA to be an excellent environment sensitive fluorescence reporter. The experimental results were verified with structural insights obtained from DFT calculations at B3LYP/6-311++G(d,p) level and construction of potential energy surface (PES) in the ground state as well as in the excited states.
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Affiliation(s)
| | | | - Dipak Chamlagai
- Department of Chemistry, North-Eastern Hill University, Shillong-793022, India
| | - Sivaprasad Mitra
- Department of Chemistry, North-Eastern Hill University, Shillong-793022, India
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Talaat W, ElOnsy S, Keshk RM. Fluorescent sensing for some nitric oxide donors in dosage forms and biological matrices. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 257:119788. [PMID: 33894636 DOI: 10.1016/j.saa.2021.119788] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/24/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
New fluorescent sensing of some nitric oxide donors, nitroglycerin and isosorbide dinitrate was developed in our laboratories. Two fluorescent reagents, 2-(2-hydroxyethylamino)-4,6-dimethylpyridine-3-carbonitrile, 3a and 2-(3-chloro-phenylamino)-4,6-dimethylpyridine-3-carbonitrile, 3b were synthesized in our laboratories and a comparative study was performed between them from the point of fluorescence intensity. The fluorophore, 3a, was selected for the analytical study as it exhibit higher quantum yield value. The interaction between the selected drugs and the fluorophore was noticed to be quenching. The mechanism of quenching was studied and it was supposed to be collisional quenching through photo induced electron transfer process. The proposed sensing method was applied successfully for the analysis of nitroglycerin and isosorbide dinitrate in dosage forms within concentration range of (0.05-0.5 µg/mL) with percentage recoveries of 99.9 ± 0.5 and 99.9 ± 0.7 respectively. The studied drugs, nitroglycerin and isosorbide dinitrate, were also probed in spiked biological matrices such as plasma samples with percentage recoveries of 99.1 ± 1.97 and 100.7 ± 1.96 and urine samples with percentage recoveries of 100.4 ± 1.8 and 100.3 ± 1.7 respectively. In vivo analysis of both drugs in real plasma was also investigated. The sensing method exhibit well intra-day and inter day precision with %RSD < 2%.
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Affiliation(s)
- Wael Talaat
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt.
| | - Sohila ElOnsy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt.
| | - Reda Mohammed Keshk
- Department of Chemistry, Faculty of Science, Damanhour University, Damanhour, Egypt
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Abstract
AbstractReduction-and-oxidation (redox) reactions are one of the most utilized approaches for the synthesis of value-added compounds. With the growing awareness of green chemistry, researchers have searched for new and sustainable pathways for performing redox reactions. From this, a new field has gained tremendous attention, namely photoredox catalysis. Here, molecules can be easily oxidized or reduced with the use of one of Nature’s biggest resources: visible light. This tutorial paper gives the basics of photoredox catalysis along with limited examples to encourage further research in this blooming research area.1 Introduction2 Redox Chemistry3 Photochemistry3.1 Laws of Photochemistry3.2 Principles3.3 Examples4 Photoredox Catalysis4.1 General Principles4.2 Classification of Redox Processes4.3 Other Mechanistic Considerations4.4 Stern–Volmer Plots4.5 Photophysical Properties4.6 Redox Potentials5 Photocatalysts5.1 Metal-Based Photocatalysts5.2 Organic Dyes5.3 Semiconductors6 Dual Catalysis7 Conclusions
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Bhunia S, Mukherjee M, Purkayastha P. Photosensitization Dynamics of Stable Copper Nanoclusters inside the Aqueous Core of Reverse Micelles with Different Pool Sizes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3500-3507. [PMID: 33691407 DOI: 10.1021/acs.langmuir.1c00324] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The perennial problem of instability of fluorescent copper nanoclusters (Cu NCs), stemming principally from aerial oxidation, has prevented their vivid usage in energy harvesting compared to the other metal NCs. However, replacement of the much expensive metal NCs with the cheaper Cu NCs is desirable if the functions are met with. Although thiolate protection of Cu NCs could bring some stability to them, appreciably decentlystable Cu NCs were produced inside the aqueous core of reverse micelles (RMs). However, this recent development has not been further explored on the photosensitization of the Cu NCs inside the RMs and their controlled modulation as energy antenna. Here we have synthesized stable Cu NCs inside the aqueous core of RMs with three different pool sizes and established photoinduced electron transfer (PET) to an electron acceptor. Considering the bulk quencher concentration, it appears that the extent of PET increases with decrease in the size of the aqueous core of RMs. However, calculating the effective concentration of the electron acceptor inside the RMs and considering the polarity of the microheterogeneous systems, it becomes clear that the extent of PET actually decreases with decrease in the size of the aqueous pool (w0, i.e., [H2O]/[AOT]) = 5-20) in the RMs. This proof of concept and the results are promising toward applications in PET-driven phenomena such as solar cells or batteries.
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Affiliation(s)
- Soumyadip Bhunia
- Department of Chemical Sciences and Center for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, WB, India
| | - Manish Mukherjee
- Department of Chemical Sciences and Center for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, WB, India
| | - Pradipta Purkayastha
- Department of Chemical Sciences and Center for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, WB, India
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Singh P, Choudhury S, Sharma VK, Mitra S, Mukhopadhyay R, Das R, Pal SK. Modulation of Solvation and Molecular Recognition of a Lipid Bilayer under Dynamical Phase Transition. Chemphyschem 2018; 19:2709-2716. [PMID: 30030893 DOI: 10.1002/cphc.201800522] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Indexed: 11/09/2022]
Abstract
It is well accepted in contemporary biology that an ∼30 Å thick lipid bilayer film around living cells is a matter of life and death as the film typically delimits the environments that serve as a crucial margin. The dynamic organization of lipid molecules both across the lipid bilayer and in the lateral dimension are known to be crucial for cellular transport and molecular recognition by important biological macromolecules. Here, we study dilute (20 mM) Dioctadecyldimethylammonium bromide (DODAB) vesicles at different temperatures in aqueous dispersion with well-defined phases namely liquid crystalline, gel and subgel. The spectroscopic studies on two fluorescent probes 8-anilino-1-naphthalene sulfonic acid ammonium salt (ANS) and Coumarin 500 (C500), former in the head group region of the lipid-water interface and later located deeper in the lipid bilayer follow dynamics (solvation and fluidity) of their local environments in the vesicles. Binding of an anti-tuberculosis drug rifampicin has also been studied employing Förster resonance energy transfer (FRET) technique. The molecular insight concerning the effect of dynamical organization of the lipid molecules on the local dynamics of aqueous environments in different phases leading to molecular recognition becomes evident in our study.
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Affiliation(s)
- Priya Singh
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, SaltLake, Kolkata, 700 106, India
| | - Susobhan Choudhury
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, SaltLake, Kolkata, 700 106, India
| | - V K Sharma
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - S Mitra
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - R Mukhopadhyay
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Ranjan Das
- Department of Chemistry, West Bengal State University, Barasat, Kolkata, 700126
| | - Samir Kumar Pal
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, SaltLake, Kolkata, 700 106, India
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