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Vishnevetskii DV, Andrianova YV, Polyakova EE, Ivanova AI, Mekhtiev AR. Fluoride-Ion-Responsive Sol-Gel Transition in an L-Cysteine/AgNO 3 System: Self-Assembly Peculiarities and Anticancer Activity. Gels 2024; 10:332. [PMID: 38786249 PMCID: PMC11121661 DOI: 10.3390/gels10050332] [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: 04/17/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024] Open
Abstract
Supramolecular hydrogels based on low-molecular-weight compounds are a unique class of so-called "soft" materials, formed by weak non-covalent interactions between precursors at their millimolar concentrations. Due to the variety of structures that can be formed using different low-molecular-weight gelators, they are widely used in various fields of technology and medicine. In this study, we report for the first time an unusual self-assembly process of mixing a hydrosol obtained from L-cysteine and silver nitrate (cysteine-silver sol-CSS) with sodium halides. Modern instrumental techniques such as viscosimetry, UV spectroscopy, dynamic light scattering, zeta potential measurements, SEM and EDS identified that adding fluoride anions to CSS is able to form stable hydrogels of a thixotropic nature, while Cl-, Br- and I- lead to precipitation. The self-assembly process proceeds using a narrow concentration range of F-. An increase in the fluoride anion content in the system leads to a change in the gel network morphology from elongated structures to spherical ones. This fact is reflected in a decrease in the gel viscosity and a number of gel-sol-gel transition cycles. The mechanism of F-'s interaction with hydrosol includes the condensation of anions on the positive surface of the CSS nanoparticles, their binding via electrostatic forces and the formation of a resulting gel carcass. In vitro analysis showed that the hydrogels suppressed human squamous carcinoma cells at a micromolar sample concentration. The obtained soft gels could have potential applications against cutaneous malignancy and as carriers for fluoride anion and other bioactive substance delivery.
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Affiliation(s)
- Dmitry V. Vishnevetskii
- Department of Physical Chemistry, Tver State University, Building 33, Zhelyabova Str., Tver 170100, Russia; (Y.V.A.); (E.E.P.)
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Str., Moscow 191121, Russia
| | - Yana V. Andrianova
- Department of Physical Chemistry, Tver State University, Building 33, Zhelyabova Str., Tver 170100, Russia; (Y.V.A.); (E.E.P.)
| | - Elizaveta E. Polyakova
- Department of Physical Chemistry, Tver State University, Building 33, Zhelyabova Str., Tver 170100, Russia; (Y.V.A.); (E.E.P.)
| | - Alexandra I. Ivanova
- Department of Applied Physics, Tver State University, Building 33, Zhelyabova Str., Tver 170100, Russia;
| | - Arif R. Mekhtiev
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Str., Moscow 191121, Russia
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2
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Kuppadakkath G, Jayabhavan SS, Damodaran KK. Supramolecular Gels Based on C3-Symmetric Amides: Application in Anion-Sensing and Removal of Dyes from Water. Molecules 2024; 29:2149. [PMID: 38731640 PMCID: PMC11085098 DOI: 10.3390/molecules29092149] [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: 03/31/2024] [Revised: 04/26/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024] Open
Abstract
We modified C3-symmetric benzene-1,3,5-tris-amide (BTA) by introducing flexible linkers in order to generate an N-centered BTA (N-BTA) molecule. The N-BTA compound formed gels in alcohols and aqueous mixtures of high-polar solvents. Rheological studies showed that the DMSO/water (1:1, v/v) gels were mechanically stronger compared to other gels, and a similar trend was observed for thermal stability. Powder X-ray analysis of the xerogel obtained from various aqueous gels revealed that the packing modes of the gelators in these systems were similar. The stimuli-responsive properties of the N-BTA towards sodium/potassium salts indicated that the gel network collapsed in the presence of more nucleophilic anions such as cyanide, fluoride, and chloride salts at the MGC, but the gel network was intact when in contact with nitrate, sulphate, acetate, bromide, and iodide salts, indicating the anion-responsive properties of N-BTA gels. Anion-induced gel formation was observed for less nucleophilic anions below the MGC of N-BTA. The ability of N-BTA gels to act as an adsorbent for hazardous anionic and cationic dyes in water was evaluated. The results indicated that the ethanolic gels of N-BTA successfully absorbed methylene blue and methyl orange dyes from water. This work demonstrates the potential of the N-BTA gelator to act as a stimuli-responsive material and a promising candidate for water purification.
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Affiliation(s)
| | | | - Krishna K. Damodaran
- Department of Chemistry, Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland
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3
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Fluorescent sensors and rapid detection films for Fe3+ and Cu2+ based on naphthalene and cholesterol derivative organogels. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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4
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Rabecca Jenifer V, Mohan Das T. Smart supramolecular photoresponsive gelator with long-alkyl chain azobenzene incorporated sugar derivatives for recycling aromatic solvents and sequestration of cationic dyes. SOFT MATTER 2022; 18:9017-9025. [PMID: 36404737 DOI: 10.1039/d2sm01367c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Phase-selective gelation of low molecular-weight photoresponsive organogelator possessing long aliphatic chain azobenzene sugar derivatives and its applications in the recycling of aromatic solvents and also the removal of cationic dyes is reported. Very low critical gelation concentration (CGC) in aromatic solvents implies that it acts as a very good gelator. The photoinduced gel-to-sol transition was attained by irradiation with UV light at 350 nm. These organogels work as a selective adsorbent for efficiently removing cationic dyes from individual aqueous dye solutions and in a mixture of cationic and anionic dye solutions show more than 95% removal within 12 h. These insights indicate that these sugar derivatives could be exploited in implementing smart materials for environmental remediation.
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Affiliation(s)
- V Rabecca Jenifer
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu (CUTN), Thiruvarur 610 005, India.
| | - Thangamuthu Mohan Das
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu (CUTN), Thiruvarur 610 005, India.
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Raza R, Mukherjee M, Panja. A, Baildya N, Ghosh K. Cholesterol‐Modified Quinazoline: Gelation, Ag
+
and Al
3+
Ion Detection under Different Conditions and Phase Selective Dye Removal with an Ag‐gel. ChemistrySelect 2022. [DOI: 10.1002/slct.202200191] [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]
Affiliation(s)
- Rameez Raza
- Department of Chemistry University of Kalyani Kalyani 741235 India
| | | | - Atanu Panja.
- Department of Chemistry University of Kalyani Kalyani 741235 India
- Department of Chemistry University of Calcutta Kolkata 700009 India
| | | | - Kumaresh Ghosh
- Department of Chemistry University of Kalyani Kalyani 741235 India
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6
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Panja S. Dosimetric gelator probes and their application as sensors. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Ghosh S, Jana P, Ghosh K. A naphthalimide-linked new pyridylazo phenol derivative for selective sensing of cyanide ions (CN -) in sol-gel medium. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:695-702. [PMID: 33480362 DOI: 10.1039/d0ay02033h] [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
Napthalimide-linked pyridylazo derivatives 1 and 2 have been designed and synthesized. Compound 1 acts as a gelator in DMF-H2O (1 : 1, v/v). The brown gel is photostable and shows good viscoelastic properties. The value of G' is almost 10 times higher than that of G'' over the entire range of frequencies at a constant strain of 1%. The SEM image shows the presence of densely stacked flakes. In comparison, compound 2, devoid of free phenolic -OH, does not show gelation properties under identical conditions. However, the brown gel of 1 shows selective sensing of CN- ions over a series of anions involving phase change through the deprotonation mechanism. While the brown gel of 1 is selectively ruptured in the presence of CN- to the sol, compound 1 in solution shows measurable UV-vis and emission changes in the presence of CN- over the other anions and validates the visual sensing of CN-. In the test-kit application, the yellow paper strip turned into pinkish-red upon contact with CN-.
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Affiliation(s)
- Sumit Ghosh
- Department of Chemistry, University of Kalyani, Kalyani-741235, India.
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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
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Panja S, Mondal S, Ghosh S, Ghosh U, Ghosh K. Effect of Substitution at Amine Functionality of 2,6-Diaminopyridine-Coupled Rhodamine on Metal-Ion Interaction and Self-Assembly. ACS OMEGA 2020; 5:13984-13993. [PMID: 32566865 PMCID: PMC7301565 DOI: 10.1021/acsomega.0c01384] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/21/2020] [Indexed: 05/08/2023]
Abstract
2,6-Diaminopyridine-coupled rhodamines 1 and 2 have been synthesized, and the effect of substitution on amine functionality toward metal-ion interactions and self-assembly is thoroughly investigated. Both the compounds effectively recognize different metal ions of biological significance fluorimetrically and colorimetrically with a high degree of selectivity and sensitivities. While compound 1 is sensitive to Fe3+ ions, compound 2 is responsive to both Fe3+ and Al3+ ions in aqueous CH3CN (4/1, v/v; 10 mM tris HCl buffer, pH 6.8). The sensing mechanism involves the metal-ion chelation-induced spirolactam ring opening of the rhodamine scaffold that results in both color and fluorescence changes, while the extent of interactions with the metal ions is truly governed by the chemical structure of the compounds. Both 1 and 2 are proficient in detecting Fe3+ and Al3+ ions in human lung cancer cells (A549). As new findings, unlike 1, compound 2 formed a faint pink gel in the toluene-hexane mixture solvent (1:1, v/v), and the gel state of 2 selectively recognizes Ag+ ions by exhibiting a phase change from gel to purple sol. Experimental findings establish the role of the formamide moiety in forming the self-assembly.
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Affiliation(s)
- Santanu Panja
- Department
of Chemistry, University of Kalyani, Kalyani 741235, India
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Subhendu Mondal
- Department
of Chemistry, University of Kalyani, Kalyani 741235, India
| | - Sourav Ghosh
- Department
of Biochemistry and Biophysics, University
of Kalyani, Kalyani 741235, India
| | - Utpal Ghosh
- Department
of Biochemistry and Biophysics, University
of Kalyani, Kalyani 741235, India
| | - Kumaresh Ghosh
- Department
of Chemistry, University of Kalyani, Kalyani 741235, India
- ,
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Park S, Ju J, Lee YJ, Lee SY. A hydrazide organogelator for fluoride sensing with hyperchromicity and gel-to-sol transition. RSC Adv 2020; 10:14243-14248. [PMID: 35498467 PMCID: PMC9051939 DOI: 10.1039/d0ra00899k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 03/27/2020] [Indexed: 12/18/2022] Open
Abstract
Sensing of fluoride in a solvent is highly required in healthcare and environmental rehabilitation. Among the various sensing methods, optical sensing has attracted significant research interest because it can conveniently recognize fluoride. Herein, a low molecular weight organogelator, N′1,N′6-bis(3-(1-pyrrolyl)propanoyl) hexanedihydrazide (DPH), containing a central butyl chain conjugated to two pyrrole rings through hydrazide groups, was used for optical sensing of fluoride in the forms of both solution and organogel. Association of fluoride with the –NH moiety of the hydrazide group endowed the DPH solution in dimethylformamide with a hyperchromicity under 350 nm. Exploiting the UV absorptivity, the DPH solution was examined as a chemosensor, displaying good selectivity toward fluoride among various anions and moderate sensitivity with a detection limit of 0.49 μM. The practical use of the DPH solution was demonstrated for fluoride sensing in toothpaste. Binding of fluoride also changed the molecular interactions of the DPH organogel, resulting in a phase transition from gel to sol. This gel-to-sol transition enabled the sensing of fluoride by the naked eye. A low-molecular-weight organogelator containing hydrazide groups, DPH, exhibited considerable selectivity and sensitivity for fluoride. The optical sensing of fluoride was demonstrated with the systematic study on the sensing mechanism.![]()
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Affiliation(s)
- Sangwoo Park
- Korea Basic Science Institute Gwangju Center
- Gwangju
- Republic of Korea
| | - Jeewon Ju
- Department of Chemical and Biomolecular Engineering
- Seoul
- Republic of Korea
| | - Young Ju Lee
- Korea Basic Science Institute Gwangju Center
- Gwangju
- Republic of Korea
| | - Sang-Yup Lee
- Department of Chemical and Biomolecular Engineering
- Seoul
- Republic of Korea
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Raza R, Panja A, Ghosh K. Diaminomaleonitrile-functionalized gelators in F−/CN− sensing, phase-selective gelation, oil spill recovery and dye removal from water. NEW J CHEM 2020. [DOI: 10.1039/d0nj01992e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Diamiomaleonitrile-based gelators 1 and 2 were designed and synthesized. Toluene and 1,2-dichlorobenzene gels of 1 and 2, respectively sense F− and CN− anions. Both 1 and 2 show phase-selective gelation (PSG) with distinguishable feature. Toluene gel of 1 acts as injectable material and is applied in environmental remediation.
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Affiliation(s)
- Rameez Raza
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Atanu Panja
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Kumaresh Ghosh
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
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