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Patra SK, Mahato MK, Prasad E. Aggregation induced emission and volatile acid vapour sensing in acridine appended poly (aryl ether) based low molecular weight organogelator. Org Biomol Chem 2024; 22:2596-2607. [PMID: 38450570 DOI: 10.1039/d3ob01945d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Considerable research attention has been devoted to the development of portable and rapid fluorescence sensors that can selectively detect volatile acids, due to the harmful effects of acid vapour on the environment and human health. Although various types of fluorophores have been reported for sensing volatile acid vapours, regulation of the sensory response using aggregation induced emissive (AIE) based gelators has rarely been reported. In this study, we present the design and synthesis of a novel organogelator that is capable of sensing volatile acids through AIE. An acridine-attached poly(aryl ether) dendron molecular system is synthesized through an aldimine coupling reaction, which self-assembles and forms a gel, exhibiting AIE behavior. The synthesized molecule and prepared gel were characterized using NMR, MASS, XRD, HRSEM and rheology techniques. The AIE property of APD was investigated using steady-state absorption and emission spectroscopic techniques. The sensory response of the APD gelator was tested with various analytes, and the results indicated that APD shows rapid response, particularly to acid vapours, where the detection limits (DL) of trifluoroacetic acid (TFA), hydrochloric acid (HCl) and nitric acid (HNO3) vapor were as low as 0.22, 0.9 and 0.30 ppm, respectively. An APD solid film in filter paper shows a visual color change from yellow to red in an aqueous acidic medium, and the effect is reversed in an alkaline medium. These findings suggest that an APD gelator could potentially be utilized to generate a portable acid vapor sensor kit due to its low detection limit and rapid response time, and it could be also be used as a substitute for existing acid indicators.
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Affiliation(s)
- Srikanta Kumar Patra
- Department of Chemistry, Indian Institute of Technology Madras (IITM), Chennai 600036, India.
| | - Malay Krishna Mahato
- Department of Chemistry, Indian Institute of Technology Madras (IITM), Chennai 600036, India.
| | - Edamana Prasad
- Department of Chemistry, Indian Institute of Technology Madras (IITM), Chennai 600036, India.
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2
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New Carbamates and Ureas: Comparative Ability to Gel Organic Solvents. Gels 2022; 8:gels8070440. [PMID: 35877525 PMCID: PMC9316452 DOI: 10.3390/gels8070440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/23/2022] [Accepted: 07/05/2022] [Indexed: 02/01/2023] Open
Abstract
Two series of novel amphiphilic compounds were synthesized based on carbamates and ureas structures, using a modification of the synthesis methods reported by bibliography. The compounds were tested for organic solvent removal in a model wastewater. The lipophilic group of all compounds was a hexadecyl chain, while the hydrophilic substituent was changed with the same modifications in both series. The structures were confirmed by FT-IR, NMR, molecular dynamic simulation and HR-MS and their ability to gel organic solvents were compared. The SEM images showed the ureas had a greater ability to gel organic solvents than the carbamates and formed robust supramolecular networks, with surfaces of highly interwoven fibrillar spheres. The carbamates produced corrugated and smooth surfaces. The determination of the minimum gelation concentration demonstrated that a smaller quantity of the ureas (compared to the carbamates, measured as the weight percentage) was required to gel each solvent. This advantage of the ureas was attributed to their additional N-H bond, which is the only structural difference between the two types of compounds, and their structures were corroborated by molecular dynamic simulation. The formation of weak gels was demonstrated by rheological characterization, and they demonstrated to be good candidates for the removal organic solvents.
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Wang D, Chen A, Morris J, Wang G. Stimuli-responsive gelators from carbamoyl sugar derivatives and their responses to metal ions and tetrabutylammonium salts. RSC Adv 2020; 10:40068-40083. [PMID: 35520864 PMCID: PMC9057480 DOI: 10.1039/d0ra07587f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/07/2020] [Indexed: 12/22/2022] Open
Abstract
Carbohydrate-based low molecular weight gelators (LMWGs) are interesting compounds with a variety of applications. In this research, a library of nineteen carbamate derivatives of N-acetyl-d-glucosamine were synthesized and characterized, and several derivatives were found to be effective LMWGs. They formed gels in pump oils as well as mixtures of water with ethanol or water with DMSO. The structures of the carbamoyl chains played an important role in the gelation properties, short chain aliphatic derivatives and phenyl carbamates formed gels in more solvents than certain aromatic and dimeric carbamates. The phenyl carbamate gelator was also selected for the encapsulation of naproxen sodium, and the drug slowly diffused from the gel to the aqueous phase as indicated by UV-vis spectroscopy. In addition, we also found that the p-methoxyl benzyl carbamate derivative showed interesting stimuli-responsive gelation properties in the presence of metal salts and tetrabutylammonium salts. The gels were characterized using optical microscopy, scanning electron microscopy, rheology and other methods. The self-assembling mechanisms of the gelators were studied using 1H NMR spectroscopy. The preparation, characterization, and molecular assembling properties of these compounds are reported. The results obtained from this study are useful for the design of other LMWGs and the sugar derivatives can be explored for different biological applications. The formation of spontaneous ionic gels can be applicable for a plethora of applications including catalysis and environmental remediation.
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Affiliation(s)
- Dan Wang
- Department of Chemistry and Biochemistry, Old Dominion University 4541 Hampton Boulevard Norfolk VA 23529-0126 USA +1 757 683 4628 +1 757 683 3781
| | - Anji Chen
- Department of Chemistry and Biochemistry, Old Dominion University 4541 Hampton Boulevard Norfolk VA 23529-0126 USA +1 757 683 4628 +1 757 683 3781
| | - Joedian Morris
- Department of Chemistry and Biochemistry, Old Dominion University 4541 Hampton Boulevard Norfolk VA 23529-0126 USA +1 757 683 4628 +1 757 683 3781
| | - Guijun Wang
- Department of Chemistry and Biochemistry, Old Dominion University 4541 Hampton Boulevard Norfolk VA 23529-0126 USA +1 757 683 4628 +1 757 683 3781
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Rathinam B, Huang ZY, Liu BT. Curcumin-derived one-and two-component organogelators and their performance as template for the synthesis of silver nanoparticles. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Kumar S, Wu L, Sharma N, Ayushee, Kaushik K, Grishina M, Chhikara BS, Poonam, Potemkin V, Rathi B. Theoretical and experimental studies of an oseltamivir-triazole-based thermoresponsive organogel. RSC Adv 2019; 9:21031-21041. [PMID: 35515532 PMCID: PMC9065751 DOI: 10.1039/c9ra02463h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 06/11/2019] [Indexed: 02/01/2023] Open
Abstract
Low-molecular weight organic gelators have been of significant interest in recent years because of their interesting properties and potential applications in sensing technology, biomedicine and drug delivery. Herein, the synthesis, characterization and gelation properties of new oseltamivir conjugates are reported. The oseltamivir-triazole conjugate 1 was synthesized via a click-reaction in a 75% yield. The key features of this conjugate include the presence of amide, flexible ester linkages and a triazole scaffold linking a hydrophobic alkyl chain. The conjugate 1, possessing a long alkyl chain, showed gelation properties in various apolar organic solvents. This gelation behavior was not observed in the case of the deesterified conjugate 2; this indicated the necessity of the alkyl chain for gelation. The gelator 1 showed thermoreversible gelation properties in a range of linear alkane solvents (from n-pentane to n-dodecane). A scanning electron microscopic study suggests that the gelator 1 exists as cross-linked structures, which are self-aggregated in the range of submicrometers, as supported by extensive 1H-NMR studies. The rheological parameters supported the occurrence of a soft gelation process, and the gel formed in n-decane was found to be stiffer than that formed in n-hexane. Computational studies suggested that the gelation behavior was indeed due to micelle formation and dependent on the lipophilicity of solvents.
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Affiliation(s)
- Sumit Kumar
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College University Enclave, University of Delhi Delhi 110007 India
- Department of Chemistry, Miranda House, University of Delhi Delhi 110007 India
| | - Lidong Wu
- Department of Chemistry, Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences Beijing 100141 China
| | - Neha Sharma
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College University Enclave, University of Delhi Delhi 110007 India
| | - Ayushee
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College University Enclave, University of Delhi Delhi 110007 India
| | - Kumar Kaushik
- Fire Chemistry Group, Centre for Fire, Explosives & Environment Safety Delhi-110054 India
| | - Maria Grishina
- South Ural State University, Laboratory of Computational Modeling of Drugs 454080 Russia
| | - Bhupendra S Chhikara
- Department of Chemistry, Aditi Mahavidyalaya, University of Delhi Bawana Delhi-110039 India
| | - Poonam
- Department of Chemistry, Miranda House, University of Delhi Delhi 110007 India
| | - Vladimir Potemkin
- South Ural State University, Laboratory of Computational Modeling of Drugs 454080 Russia
| | - Brijesh Rathi
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College University Enclave, University of Delhi Delhi 110007 India
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Fitriyani S, Liu CY, Yuniarti Y, Liu JH. Chiral effect on the self-assembly of chiral molecules synthesized from cholesterol. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Cheng H, Gao H, Xiao Y, Zhang B, Xing W, Cheng X. Self-assembly, conductivity and chemosensor behavior of biphenylsulfone based Janus polycatenar. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zhang R, Gao H, Ren Y, Xiao Y, Hu J, Cheng X. Syntheses and Properties of meso-Substituted Porphyrin Mesogens with Triazole Linkages and Peripheral Alkyl Chains. Chem Asian J 2018; 13:536-544. [PMID: 29328555 DOI: 10.1002/asia.201701666] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/30/2017] [Indexed: 12/18/2022]
Abstract
Discotic mesogens P/n-M (n=12, 16, 18, M=2 H, Zn and Cu) bearing a porphyrin core, triazole linkages and peripheral 3,4,5-trialkoxybenzyl units have been synthesized by a click-chemistry approach. The thermal behavior, photophysical properties and morphologies of these compounds were investigated by polarized optical microscopy (POM), differential scanning calorimetry (DSC), XRD, UV and PL, SEM and TEM. These compounds can self-assemble into hexagonal columnar phases in their pure states and form organogels in 1,4-dioxane with unusually flower-like sphere morphology. The supramolecular complexes of P/18-Zn with C70 or 4,7-di-4-pydriyl-2,1,3-benzothadiazole can display hexagonal columnar phases too. Additionally, zinc porphyrin compounds P/n-Zn show binding selectivity to Cu2+ among a series of cations in THF/H2 O.
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Affiliation(s)
- Ruilin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Chemistry School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P.R. China.,Forensic Medicine of Kunming Medical University, Kunming, 650500, P.R. China
| | - Hongfei Gao
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Chemistry School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P.R. China
| | - Yanming Ren
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Chemistry School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P.R. China
| | - Yulong Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Chemistry School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P.R. China
| | - Jinliang Hu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Chemistry School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P.R. China
| | - Xiaohong Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, Chemistry School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P.R. China
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Cheng H, Zhang R, Li T, Peng X, Xia M, Xiao Y, Cheng X. Synthesis and self-assembly of bent core polycatenar mesogens with binding selectivity to Hg2+. NEW J CHEM 2017. [DOI: 10.1039/c7nj00225d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Target compounds can self-assemble into CubI/Pm3̄nLC phases and organogels, simultaneously; these compounds have binding selectivity to Hg2+.
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Affiliation(s)
- Huifang Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Ruilin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Taihao Li
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Xiongwei Peng
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Meng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Yulong Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Xiaohong Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
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10
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Kuo SY, Liu CY, Balamurugan R, Zhang YS, Fitriyani S, Liu JH. Dual-responsive ALS-type organogelators based on azobenzene–cholesteryl conjugates and their self-assemblies. NEW J CHEM 2017. [DOI: 10.1039/c7nj03059b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Azobenzene and cholesteryl based derivatives (N2 and N4) were designed as gelators and their aggregation mechanism is proposed. These gelators are thermally reversible, however optically irreversible.
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Affiliation(s)
- Sheng-Yang Kuo
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
| | - Chun-Yen Liu
- School of Optometry and Vision Science Program
- UC Berkeley
- Berkeley
- USA
| | - Rathinam Balamurugan
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
| | - Yan-Song Zhang
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
| | - Sri Fitriyani
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
| | - Jui Hsiang Liu
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
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Wang G, Chen A, Mangunuru HPR, Yerabolu JR. Synthesis and characterization of amide linked triazolyl glycolipids as molecular hydrogelators and organogelators. RSC Adv 2017. [DOI: 10.1039/c7ra06228a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Eighteen new glycolipids were synthesized and characterized. All eighteen are effective molecular gelators for at least one solvent and eleven are hydrogelators at concentrations of 0.15–1.0 wt%. The hydrogels are suitable carriers for sustained release of chloramphenicol.
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Affiliation(s)
- Guijun Wang
- Department of Chemistry and Biochemistry
- Old Dominion University
- Norfolk
- USA
| | - Anji Chen
- Department of Chemistry and Biochemistry
- Old Dominion University
- Norfolk
- USA
| | - Hari P. R. Mangunuru
- Department of chemical and medicinal engineering
- Virginia Commonwealth University
- Richmond
- USA
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