1
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Park JH, Kim MH, Seo ML, Lee JH, Jung JH. In Situ Supramolecular Gel Formed by Cyclohexane Diamine with Aldehyde Derivative. Polymers (Basel) 2022; 14:400. [PMID: 35160389 PMCID: PMC8840383 DOI: 10.3390/polym14030400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/05/2023] Open
Abstract
Low-molecular-weight gels have great potential for use in a variety of fields, including petrochemicals, healthcare, and tissue engineering. These supramolecular gels are frequently metastable, implying that their properties are kinetically controlled to some extent. Here, we report on the in situ supramolecular gel formation by mixing 1,3-cyclohexane diamine (1) and isocyanate derivative (2) without any catalysis at room temperature in various organic solvents. A mixture of building blocks 1 and 2 in various organic solvents, dichloromethane, tetrahydrofuran, chloroform, toluene, and 1,4-dioxane, resulted in the stable formation of supramolecular gel at room temperature within 60-100 s. This gel formation was caused by the generation of urea moieties, which allows for the formation of intermolecular hydrogen-bonding interactions via reactions 1 and 2. In situ supramolecular gels demonstrated a typical entangled fiber structure with a width of 600 nm and a length of several hundred μm. In addition, the supramolecular gels were thermally reversible by heating and cooling. The viscoelastic properties of supramolecular gels in strain and frequency sweets were enhanced by increasing the concentration of a mixed 1 and 2. Furthermore, the supramolecular gels displayed a thixotropic effect, indicating a thermally reversible gel.
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Affiliation(s)
- Jae-Hyeon Park
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.P.); (M.-H.K.)
| | - Min-Hye Kim
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.P.); (M.-H.K.)
| | - Moo-Lyong Seo
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.P.); (M.-H.K.)
| | - Ji-Ha Lee
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Jong-Hwa Jung
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.P.); (M.-H.K.)
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2
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Ghosh S, Bhattacharya S, Baildya N, Nath Ghosh N, Ghosh K. Silver‐Ion‐Selective Gelation of Simple Pyridine‐Naphthalimide Conjugates with Multiple Applications: Sensing, Drug Delivery, Dye Adsorption and Ion Conductivity. ChemistrySelect 2021. [DOI: 10.1002/slct.202103218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sumit Ghosh
- Department of Chemistry University of Kalyani Kalyani 741235 India
| | | | | | | | - Kumaresh Ghosh
- Department of Chemistry University of Kalyani Kalyani 741235 India
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3
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Cao X, Gao A, Hou JT, Yi T. Fluorescent supramolecular self-assembly gels and their application as sensors: A review. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213792] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Chen R, Xu C, Lei Y, Liu H, Zhu Y, Zhang J, Xu L. Facile construction of a family of supramolecular gels with good levofloxacin hydrochloride loading capacity. RSC Adv 2021. [DOI: 10.1039/d1ra00809a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A family of low molecular weight gelators with different alkyl chain lengths was constructed, having excellent gelation ability and antibiotic loading capacity. A low molecular weight hydrogelator was obtained by adjusting the length of alkyl chain.
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Affiliation(s)
- Renyuan Chen
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Caidie Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Yihao Lei
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Hongxin Liu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou
- China
| | - Yabin Zhu
- Medical School of Ningbo University
- Ningbo 315211
- China
| | - Jianfeng Zhang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Long Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province
- School of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo
- China
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5
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Panja S, Ghosh K. Progress in Benzimidazole/Benzimidazolium-Derived Supramolecular Gelators in Ion Recognition. MINI-REV ORG CHEM 2020. [DOI: 10.2174/1570193x17999200430090415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The benzimidazole moiety, being a versatile heterocyclic unit, finds potential utility in
multiple applications ranging from material science to medicinal chemistry. Benzimidazole derivatives
are widely chosen as a multifunctional unit for the synthesis of bioactive organic compounds
because of their structural similarities to the natural nucleotides. They are also used as heteroaromatic
scaffolds in molecular probes for sensing and bio-imaging. Amphoteric nature of the benzimidazole
ring forms the basis of designing new fluorescent architectures for various metal ions, anions, nitroaromatics
as well as neutral organic molecules. Alongside, recent years have also witnessed the
emerging development of benzimidazole-based supramolecular gels, useful in sensing and water purification.
Supramolecular gels are a special class of self-assembled structures formed by weak noncovalent
interactions between the molecules and are easily tuned by external stimuli. Such stimuliresponsive
gels serve as smart materials because of their abilities to undergo gel-to-gel, or gel-to-sol
transition upon subtle change of the gel environment. Of various stimuli, ion coordination draws attention
for their visual detection and to adapt material properties. The ion-sensitive gels act as
fascinating biomaterials with potential applications in drug delivery, optoelectronics and catalysis.
Thus, designing of such ion-responsive gels is challenging. The rising popularity of benzimidazole
based-gels is related to its advanced properties such as π-bridging, hydrogen bonding, fluorescence
and ion coordinating abilities. This review focuses on recently developed various ion-responsive
benzimidazole motif-based supramolecular gelators by summarising the crucial role of the structural
parameters of benzimidazole gelators. Beside ion sensing, we also desire to summarize other possible
applications of gelators in material chemistry. Finally, the necessity and possibility of further exploration
of benzimidazole/ benzimidazolium derived gelators are briefly described.
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Affiliation(s)
- Santanu 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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6
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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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7
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Abstract
Steroidal supramolecular metallogels combine the properties of steroids with metal ions resulting in multi-responsive systems possessing many potential applications.
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Affiliation(s)
| | - Kari Rissanen
- Department of Chemistry
- University of Jyväskylä
- Finland
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8
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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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9
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Roy K, Ghosh S, Chetia M, Satpati P, Chatterjee S. Dicyclohexylurea derivatives of amino acids as dye absorbent organogels and anion sensors. Org Biomol Chem 2019; 17:3026-3039. [PMID: 30816399 DOI: 10.1039/c9ob00014c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Dicyclohexyl urea (DCU) derivatives of amino acids Fmoc-Phe-DCU (M1), Fmoc-Phg-DCU (M2) and Fmoc-Gaba-DCU (M3) have been shown to form phase selective, thermoreversible and mechanically robust gels in a large range of organic solvents. This is the first report of low molecular weight gelators (LMWG) from DCU derivatives of amino acids. The self-assembly mechanism of the organogels has been probed using concentration dependent 1H NMR, DMSO titration 1H NMR, fluorescence, FTIR, PXRD and FESEM techniques. Self-assembly leading to gelation process is mainly driven by hydrophobicity and π-π stacking interactions in between Fmoc groups. Interestingly, the gels can absorb several kinds of organic dyes efficiently and can be reused for dye absorption for multiple cycles. Additionally, M1-M3 act as sensors for anions like fluoride, acetate and hydroxide, for which they have specific fluorescence response. Gel formation by M1-M3 is completely arrested in the presence of fluoride. The possible binding mode of fluoride has been delineated using DFT studies. Calculations suggest, involvement of urea NH in a six membered intramolecular hydrogen bond, rendering it unavailable for fluoride binding. Backbone -NH of the amino acids of M1-M3 is responsible for fluoride binding. The reported small, economically viable, synthetically facile molecules not only enrich the repertoire of LMWG molecules, but can have multifaceted applications.
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Affiliation(s)
- Karabi Roy
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, India 781039.
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10
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Panja A, Ghosh K. Cholesterol-based simple supramolecular gelators: an approach to selective sensing of CN− ion with application in dye adsorption. Supramol Chem 2019. [DOI: 10.1080/10610278.2018.1562190] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Atanu Panja
- Department of Chemistry, University of Kalyani, Kalyani, India
| | - Kumaresh Ghosh
- Department of Chemistry, University of Kalyani, Kalyani, India
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11
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Panja A, Ghosh K. 4-Hydroxybenzaldehyde derived Schiff base gelators: case of the sustainability or rupturing of imine bonds towards the selective sensing of Ag+and Hg2+ionsviasol–gel methodology. NEW J CHEM 2019. [DOI: 10.1039/c8nj05056b] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The cholesterol appended hydroxybenzaldehyde derived Schiff bases1–4have been designed and synthesized. They are suitable for the naked-eye detection of metal ions such as Hg2+and Ag+using sol–gel methodology involving either rupturing or maintaining the imine bonds.
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Affiliation(s)
- 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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12
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Panja A, Ghosh K. Triazole-amide isosteric pyridine-based supramolecular gelators in metal ion and biothiol sensing with excellent performance in adsorption of heavy metal ions and picric acid from water. NEW J CHEM 2019. [DOI: 10.1039/c8nj04380a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Pyridine-based gelators 1–4 of triazole-amide isosteric relationship have been considered in metal ion sensing, heavy metal and picric acid adsorption from water. The change from triazole to isosteric amide has marked effect on gelling properties of the gelators.
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Affiliation(s)
- 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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13
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Pati C, Ghosh K. A 1,8-naphthalimide–pyridoxal conjugate as a supramolecular gelator for colorimetric read out of F− ions in solution, gel and solid states. NEW J CHEM 2019. [DOI: 10.1039/c8nj05626a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Naphthalimide–pyridoxal conjugated gelator 1 has been designed and synthesized. Compound 1 which forms stable greenish yellow colored gel in DMSO : H2O (8 : 1 v/v), shows selective sensing of F− in solution, gel and solid states under different conditions.
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Affiliation(s)
- Chiranjit Pati
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Kumaresh Ghosh
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
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14
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Panja A, Ghosh S, Ghosh K. A sulfonyl hydrazone cholesterol conjugate: gelation, anion interaction and its application in dye adsorption. NEW J CHEM 2019. [DOI: 10.1039/c8nj05613g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cholesterol appended sulfonyl-hydrazone derivative 1 was designed and synthesized as a supramolecular gelator for anionic sensing and dye adsorption. Gelator 1 forms a strong gel in DMSO–H2O and the morphology of the xerogel shows a tiny rod-like fibrous network. The gel of 1 shows a selective response toward CN− and F− ions causing gel-to-sol transformation. The gel of 1 acts as an efficient matrix for adsorption and removal of anionic dyes such as erythrosine B and uranine from water.
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Affiliation(s)
- Atanu Panja
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Sumit Ghosh
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Kumaresh Ghosh
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
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15
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Morita-Imura C, Sakurai Y, Uchiumi A, Shindo H. Ion-selective molecular inclusion of organic dyes into pH-responsive gel assemblies of zwitterionic surfactants. NEW J CHEM 2019. [DOI: 10.1039/c9nj01335k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The pH-Responsive sol–gel transition of a surfactant gel took place along with ion-selective capture and release of dye molecules.
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Affiliation(s)
- Clara Morita-Imura
- Department of Chemistry
- Faculty of Science
- Ochanomizu University
- Tokyo
- Japan
| | - Yuka Sakurai
- Department of Chemistry
- Faculty of Science
- Ochanomizu University
- Tokyo
- Japan
| | - Anna Uchiumi
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551
- Japan
| | - Hitoshi Shindo
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551
- Japan
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16
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Raza R, Panja A, Mukherjee M, Chattopadhyay P, Ghosh K. Dosimetric Chromogenic Probe for Selective Detection of Sulfide via Sol-Gel Methodology. ACS OMEGA 2018; 3:17319-17325. [PMID: 31458343 PMCID: PMC6643729 DOI: 10.1021/acsomega.8b02795] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 11/23/2018] [Indexed: 05/04/2023]
Abstract
Dinitrobenzenesulfonyl-protected naphthyl azo pyridine conjugate 1 has been designed and synthesized. Compound 1 acts as a nongelator in dimethyl sulfoxide (DMSO)-H2O (1:1, v/v) while its hydroxy counterpart 2 can form a nice gel in the same solvent. In the presence of sulfide, compound 1 undergoes rapid sulfonate ester hydrolysis and results in the formation of azo-naphthol 2 that responds in instant gelation. Such deprotection was extremely selective to sulfide; other analytes did not show measurable response. The sensing mechanism has been established by various spectroscopic techniques. Compound 1 in solution (DMSO-H2O) also shows a selective response toward sulfide over a series of other anions with a color change. Preparation of test kit with compound 1 allows detection of sulfide in solution and vapor states. Such kind of dosimetric sensing of chemical analytes by improvising the protection/deprotection of functional groups in gelator structure is rare in the literature, and to the best of our knowledge, this is the first example of a stimuli-responsive low-molecular-weight gelator which dosimetrically senses sulfide over other nucleophilic substrates.
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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
| | - Manjira Mukherjee
- Department
of Chemistry, University of Kalyani, Kalyani 741235, India
| | | | - Kumaresh Ghosh
- Department
of Chemistry, University of Kalyani, Kalyani 741235, India
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17
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Nandi M, Maiti B, Banerjee S, De P. Hydrogen bonding driven self-assembly of side-chain amino acid and fatty acid appended poly(methacrylate)s: Gelation and application in oil spill recovery. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29289] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Mridula Nandi
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; Mohanpur, 741246, Nadia West Bengal India
| | - Binoy Maiti
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; Mohanpur, 741246, Nadia West Bengal India
| | - Soham Banerjee
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; Mohanpur, 741246, Nadia West Bengal India
| | - Priyadarsi De
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; Mohanpur, 741246, Nadia West Bengal India
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18
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Panja A, Ghosh K. Pyridyl Azo-Based Naphthyl Acetate for Sensing of Hydrazine and Perborate in Sol-Gel Medium. ChemistrySelect 2018. [DOI: 10.1002/slct.201801791] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- 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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19
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Panja A, Ghosh K. Pyridylazo Derivatives with Dicyanovinyl Appendage in Selective Sensing of CN−
in Sol-Gel Medium. ChemistrySelect 2018. [DOI: 10.1002/slct.201702839] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- 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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20
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Marullo S, Rizzo C, Dintcheva NT, Giannici F, D'Anna F. Ionic liquids gels: Soft materials for environmental remediation. J Colloid Interface Sci 2018; 517:182-193. [PMID: 29425955 DOI: 10.1016/j.jcis.2018.01.111] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 12/20/2022]
Abstract
HYPOTHESIS Nanostructured sorbents and, in particular, supramolecular gels are emerging as efficient materials for the removal of toxic contaminants from water, like industrial dyes. It is also known that ionic liquids can dissolve significant amounts of dyes. Consequently, supramolecular ionic liquids gels could be highly efficient sorbents for dyes removal. This would also contribute to overcome the drawbacks associated with dye removal by liquid-liquid extraction with neat ionic liquids which would require large volumes of extractant and a more difficult separation of the phases. EXPERIMENTS Herein we employed novel supramolecular ionic liquid gels based on diimidazolium salts bearing naturally occurring or biomass derived anions, to adsorb cationic and anionic dyes from wastewaters. We also carried out a detailed investigation of thermal, structural, morphological and rheological features of our gels to identify which of them are key in designing better sorbents for environmental remediation. FINDINGS The most effective gels showed fast and thorough removal of cationic dyes like Rhodamine B. These gels could also be reused up to 20 times without any loss in removal efficiency. Overall, our ionic gels outperform most of gel-based sorbents systems so far reported in literature.
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Affiliation(s)
- Salvatore Marullo
- Dipartimento STEBICEF-Sezione di Chimica-Università degli Studi di Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy.
| | - Carla Rizzo
- Dipartimento STEBICEF-Sezione di Chimica-Università degli Studi di Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy
| | - Nadka T Dintcheva
- Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università degli Studi di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy
| | - Francesco Giannici
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, I-90128, Palermo, Italy
| | - Francesca D'Anna
- Dipartimento STEBICEF-Sezione di Chimica-Università degli Studi di Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy.
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21
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Panja S, Ghosh S, Ghosh K. Pyridine/pyridinium symmetrical bisamides as functional materials: aggregation, selective sensing and drug release. NEW J CHEM 2018. [DOI: 10.1039/c7nj03931j] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We report the design, synthesis and gelation behavior of some 3-amino pyridine/pyridinium-based bisamides. As an application, gels are useful in the visual detection of cations, anions, biomolecules and in drug release.
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Affiliation(s)
- Santanu Panja
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Sumit Ghosh
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Kumaresh Ghosh
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
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22
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Panja A, Ghosh K. Diaminomalenonitrile-decorated cholesterol-based supramolecular gelator: aggregation, multiple analyte (hydrazine, Hg2+ and Cu2+) detection and dye adsorption. NEW J CHEM 2018. [DOI: 10.1039/c8nj02426j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A low molecular weight gelator (LMWG) containing a diaminomalenonitrile functional group 1 forms supramolecular gels from DMF–H2O and 1,2-dichlorobenzene. The DMF/H2O gel is multi-analyte responsive (Hg2+, Cu2+ and hydrazine) with practical applications in dye adsorption from water.
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Affiliation(s)
- 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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Yan L, Lv M, Su C, Zheng L, Li J, Ye Z. An efficient supramolecular adsorbent for co-adsorption of dyes and metal ions from wastewater and its application in self-healing materials. SOFT MATTER 2017; 13:8772-8780. [PMID: 29130095 DOI: 10.1039/c7sm01977g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Herein, a novel type of two-component supramolecular adsorbent, 2-OA, was developed based on non-covalent interactions using tetrazolyl derivative with octadecylamine (OA) and fully characterized using a number of structural and spectral techniques. The self-assembled 2-OA gels displayed remarkable stimuli-responsiveness as well as shape-persistent and self-healing properties. In addition, it was found that the adsorbent 2-OA was able to remove dyes (10 kinds of cationic and anionic dyes) and metal ions (Cu2+ and Fe2+) simultaneously from wastewater owing to synergistic electrostatic attraction, hydrogen-bonding, and hydrophobic and coordination interactions. It also exhibited excellent co-adsorption capability to dye mixtures and binary mixtures of dyes and metal ions. In particular, the dye/metal-loaded adsorbents could be obtained easily from the aqueous phase, and recycling of the adsorbents could thus be achieved. These results suggest that the supramolecular gel 2-OA not only has great potential application in wastewater treatment but also provides a strategy for the development of intriguing self-healing materials.
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Affiliation(s)
- Liwei Yan
- Department of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Road, Xindu, 610500, Chengdu, China.
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Ganta S, Chand DK. Multi-Stimuli-Responsive Metallogel Molded from a Pd2L4-Type Coordination Cage: Selective Removal of Anionic Dyes. Inorg Chem 2017; 57:3634-3645. [DOI: 10.1021/acs.inorgchem.7b02239] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sudhakar Ganta
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Dillip K. Chand
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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