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Sebastian S, Rohila Y, Yadav E, Bhardwaj P, Sudheer Babu Y, Maruthi M, Ansari A, Gupta MK. Supramolecular Organo/hydrogel-Fabricated Long Alkyl Chain α-Amidoamides as a Smart Soft Material for pH-Responsive Curcumin Release. Biomacromolecules 2024; 25:975-989. [PMID: 38189243 DOI: 10.1021/acs.biomac.3c01074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Low-molecular-mass gelators, due to their excellent biocompatibility, low toxicological profile, innate biodegradability and ease of fabrication have garnered significant interest as they self-assemble through non-covalent interactions. In this study, we have designed and synthesized a series of six α-amidoamides by varying the hydrophobic alkyl chain length (C12-C22), which were well characterized using different spectral techniques. These α-amidoamides formed self-assembled aggregates in a DMSO/water solvent system affording organo/hydrogels at 0.66% w/v, which is the minimum gelation concentration (MGC) making them as remarkable supergelators. The various functionalities present in these gelators such as amides and alkyl chain length pave the way toward excellent gelation mechanism through hydrogen bonding and van der Waals interaction as evidenced from FTIR spectroscopy. Notably, as the chain length increased, organo/hydrogels became more thermally stable. Rheological results showed that the stability and strength of these gelators were considerably impacted by variations in chain length. The SEM morphology revealed dense sheet architectures of the organo/hydrogel samples. Organo/hydrogels have a significant impact on the advancement of innovative drug delivery systems that respond to various stimuli, ushering in a new era in pharmaceutical technology. Inspired by this, we encapsulated curcumin, a chemopreventive medication, into the gel core and further released via gel-to-sol transition induced by pH variation at 37 °C, without any alteration in structure-activity relationship. The drug release behavior was observed by UV-vis spectroscopy. Moreover, cell viability and cell invasion experiments demonstrate that the gel formulations exhibit high biocompatibility and low cytotoxicity. Among the tested formulations, 5e+Cur exhibited remarkable efficacy in controlling A549 cell migration, suggesting significant potential for applications in the pharmaceutical industry.
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Affiliation(s)
- Sharol Sebastian
- Department of Chemistry, School of Basic Sciences, Central University of Haryana, Mahendergarh 123031, Haryana, India
| | - Yajat Rohila
- Department of Chemistry, School of Basic Sciences, Central University of Haryana, Mahendergarh 123031, Haryana, India
| | - Eqvinshi Yadav
- Department of Chemistry, School of Basic Sciences, Central University of Haryana, Mahendergarh 123031, Haryana, India
| | - Priya Bhardwaj
- Department of Biochemistry, School of Interdisciplinary and Applied Sciences, Central University of Haryana, Mahendergarh 123031, Haryana,India
| | - Yangala Sudheer Babu
- Department of Biochemistry, School of Interdisciplinary and Applied Sciences, Central University of Haryana, Mahendergarh 123031, Haryana,India
| | - Mulaka Maruthi
- Department of Biochemistry, School of Interdisciplinary and Applied Sciences, Central University of Haryana, Mahendergarh 123031, Haryana,India
| | - Azaj Ansari
- Department of Chemistry, School of Basic Sciences, Central University of Haryana, Mahendergarh 123031, Haryana, India
| | - Manoj K Gupta
- Department of Chemistry, School of Basic Sciences, Central University of Haryana, Mahendergarh 123031, Haryana, India
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Pradhan S, Muthuvel P, Thangamuthu MD. Synthesis of a novel series of [1,5]-benzothiazepine-C-β-D-glycoside derivatives in a facile one-pot method and insight into their anti-oxidant properties. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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3
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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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4
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Ali D, Alarifi S, Pandian A. Somatic embryogenesis and in vitro plant regeneration of Bacopa monnieri (Linn.) Wettst., a potential medicinal water hyssop plant. Saudi J Biol Sci 2021; 28:353-359. [PMID: 33424317 PMCID: PMC7783628 DOI: 10.1016/j.sjbs.2020.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/01/2020] [Accepted: 10/06/2020] [Indexed: 12/05/2022] Open
Abstract
Bacopa monnieri (Linn.) Wettst. commonly known as waterhyssop, Brahmi plant, traditionally used for memory enhancement, nerve tonic, epilepsy, central nervous system (CNS), antidepressant, anxiety, blood pressure and antioxidant activities. Due to pharmaceutical demands its lost natural habitat. At this juncture we describe a resourceful protocol for micropropagation of water hyssop plant. Surface sterilized leaf and nodal explants were inoculated on basal MS semi-solid medium added with PGRs; auxins, cytokinins. Highest calli formation from leaf explants was obtained on NAA (2.5 mg−1) and showed (94.22%) accompanied via 2,4-D showed (2.5 mg−1; 82.43%), maximum calli formation in nodal explants was obtained on 2,4-D showed (2.5 mg−1; 71.14%) followed by NAA (2.5 mg−1) showed (62.15%), in internodes explants uppermost calli formation was obtained from 2,4-D showed (2.5 mg−1; 65.21%) followed by NAA (2.5 mg−1) showed (52.14%). The maximum somatic embryogenic callus, calli induction and formation (84%) was observed on 2,4-D + KIN (2.0 + 1.5 mg−1) amended solid medium. Uppermost shoot formation was observed in combination of IAA + BAP (1.0 + 1.0 mg−1) showed (78.54%) shoot formation followed by IBA (2.0 mg−1) alone showed (75.37%). The maximum shoot elongation was noticed from NAA + BAP (3.0 + 3.0 mg−1) with 21.21 cm followed by NAA (2.0 mg−1) showed (15.22 cm) although, chief root formation was obtained from IBA (2.0 mg−1) with 83.75% root formation along higher number of roots (47.43%) per shoot. Followed by IAA (2.0 mg−1) showed root induction (73.43%) and no of roots (38.54%) per shoot. In hardening under pot condition plants survivability (100%) was observed under glass house conditions, the present in vitro PTC techniques is extremely significant to gratifying its natural conservation.
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Affiliation(s)
- Daoud Ali
- Department of Zoology, College of Science King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Saud Alarifi
- Department of Zoology, College of Science King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Arjun Pandian
- Department of Biotechnology, PRIST Deemed University, Thanjavur 613403, Tamil Nadu, India
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Bhavya PV, Rabecca Jenifer V, Muthuvel P, Mohan Das T. Insights into a novel class of azobenzenes incorporating 4,6-O-protected sugars as photo-responsive organogelators. RSC Adv 2019; 9:42219-42227. [PMID: 35542832 PMCID: PMC9076560 DOI: 10.1039/c9ra08033c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/10/2019] [Indexed: 11/25/2022] Open
Abstract
A novel class of 4,6-O-butylidene/ethylidene/benzylidene β-d-glucopyranose gelator functionalized with photo-responsive azobenzene moieties were designed and synthesized and also characterized using different spectral techniques. These azobenzene-based organogelators can gel even at lower concentrations (critical gelation concentration – 0.5% and 1%). A morphological study of the gels shows one-dimensional aggregated bundles and helical fibres. The main driving force for the self-assembly is through cooperative interactions exhibited by the different groups viz., sugar hydroxyl (hydrogen bonding interaction), azobenzene (aromatic π–π interaction) and alkyl chain of the protecting group (van der Waals interaction). A novel class of 4,6-O-butylidene/ethylidene/benzylidene β-d-glucopyranose gelator functionalized with photo-responsive azobenzene moieties were designed and synthesized and also characterized using different spectral techniques.![]()
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Affiliation(s)
- P. V. Bhavya
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu (CUTN)
- Thiruvarur 610005
- India
| | - V. Rabecca Jenifer
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu (CUTN)
- Thiruvarur 610005
- India
| | | | - T. Mohan Das
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu (CUTN)
- Thiruvarur 610005
- India
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6
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Pal KB, Mukhopadhyay B. Carbohydrate-BasedSafe Fuel Gel with Significant Self-healing Property. ChemistrySelect 2017. [DOI: 10.1002/slct.201601776] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kumar Bhaskar Pal
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia; 741246 India
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; Box 124 221 00 Lund Sweden
| | - Balaram Mukhopadhyay
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia; 741246 India
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7
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Gu X, Fang Z. Synthesis of a small library of oximes and phenylhydrazones of phenyl ketone C-glycosides. J Carbohydr Chem 2016. [DOI: 10.1080/07328303.2016.1227830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Xiaomin Gu
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, JS, P. R. China
| | - Zhijie Fang
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, JS, P. R. China
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8
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Sarkar I, Hemamalini A, Das TM, Mishra AK. Introduction of an α,β-unsaturated carbonyl conjugated pyrene–lactose hybrid as a fluorescent molecular probe for micro-scale anisotropic media. RSC Adv 2016. [DOI: 10.1039/c5ra26146e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new fluorescent lactose molecule (pyd-lact) (E)-1-(galactose-β-(1→4)-β-d-glucopyranosyl)-4-(1-pyrene)-but-3-en-2-one, has been synthesized by attaching 1-pyrene-but-3-ene-2-one to lactose.
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Affiliation(s)
- Ivy Sarkar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
- India
| | | | - Thangamuthu Mohan Das
- Department of Organic Chemistry
- University of Madras
- Chennai – 600 025
- India
- Department of Chemistry
| | - Ashok Kumar Mishra
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
- India
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9
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Soundarajan K, Periyasamy R, Mohan Das T. Design and synthesis of sugar-benzohydrazides: low molecular weight organogelators. RSC Adv 2016. [DOI: 10.1039/c6ra18715c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel class of methyltriglycol benzohydrazide based N-glycosylamines containing long alkyl chain derivatives were synthesized in good yield and characterized using NMR (1H and 13C) spectral analysis.
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Affiliation(s)
- Kamalakannan Soundarajan
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu
- Thiruvarur-610101
- India
| | - Rathinam Periyasamy
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu
- Thiruvarur-610101
- India
| | - Thangamuthu Mohan Das
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu
- Thiruvarur-610101
- India
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10
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Mukherjee S, Rama Krishna G, Mukhopadhyay B, Malla Reddy C. A correlation study between hydrogen-bonded network and gelation ability of three galactose derivatives. CrystEngComm 2015. [DOI: 10.1039/c5ce00229j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrogen bonding network in the crystals of the three saccharides was correlated with their gelling ability or inability, and unexpectedly, a 2D hydrogen-bonded system was found to show efficient gelation, whereas a 1D hydrogen bonding system was a nongelator.
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Affiliation(s)
- Somnath Mukherjee
- Indian Institute of Science Education and Research (IISER) Kolkata
- Mohanpur Campus
- , India
| | - G. Rama Krishna
- Indian Institute of Science Education and Research (IISER) Kolkata
- Mohanpur Campus
- , India
| | - Balaram Mukhopadhyay
- Indian Institute of Science Education and Research (IISER) Kolkata
- Mohanpur Campus
- , India
| | - C. Malla Reddy
- Indian Institute of Science Education and Research (IISER) Kolkata
- Mohanpur Campus
- , India
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11
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Lalitha K, Prasad YS, Maheswari CU, Sridharan V, John G, Nagarajan S. Stimuli responsive hydrogels derived from a renewable resource: synthesis, self-assembly in water and application in drug delivery. J Mater Chem B 2015; 3:5560-5568. [DOI: 10.1039/c5tb00864f] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report coumarin-tris based hydrogel and curcumin encapsulated composite gel for stimuli responsive drug delivery applications.
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Affiliation(s)
- Krishnamoorthy Lalitha
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
| | - Y. Siva Prasad
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
| | - C. Uma Maheswari
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
| | - Vellaisamy Sridharan
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
| | - George John
- Department of Chemistry
- the City College of New York
- New York
- USA
| | - Subbiah Nagarajan
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
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Lalitha K, Muthusamy K, Prasad YS, Vemula PK, Nagarajan S. Recent developments in β-C-glycosides: synthesis and applications. Carbohydr Res 2014; 402:158-71. [PMID: 25498016 DOI: 10.1016/j.carres.2014.10.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 10/11/2014] [Accepted: 10/16/2014] [Indexed: 11/26/2022]
Abstract
In the last few years, considerable progress has been made in the synthesis of C-glycosides. Despite its challenging chemistry, due to its versatility, C-glycosides play a pivotal role in developing novel materials, surfactants and bioactive molecules. In this review, we present snapshots of various synthetic methodologies developed for C-glycosides in the recent years and the potential application of C-glycosides derived from β-C-glycosidic ketones.
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Affiliation(s)
- Krishnamoorthy Lalitha
- Organic Synthesis Group, Department of Chemistry and the Centre for Nanotechnology and Advanced Biomaterials, School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - Kumarasamy Muthusamy
- Organic Synthesis Group, Department of Chemistry and the Centre for Nanotechnology and Advanced Biomaterials, School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - Y Siva Prasad
- Organic Synthesis Group, Department of Chemistry and the Centre for Nanotechnology and Advanced Biomaterials, School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - Praveen Kumar Vemula
- Technologies for the Advancement of Science, Institute for Stem Cell Biology and Regenerative Medicine (inStem), National Centre for Biological Sciences, UAS-GKVK Post, Bellary Road, Bangalore 560065, India
| | - Subbiah Nagarajan
- Organic Synthesis Group, Department of Chemistry and the Centre for Nanotechnology and Advanced Biomaterials, School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India.
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Hemamalini A, Mohan Das T. Bis-triazologlycolipid mimetics – low molecular weight organogelators. NEW J CHEM 2014. [DOI: 10.1039/c3nj01591b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A facile regioselective synthesis of bis-triazologlycolipids, a class of organogelators, has been accomplished by “Click reaction”. The morphology and self-assembly of the gelators were examined by FESEM and HRTEM analysis.
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Affiliation(s)
| | - Thangamuthu Mohan Das
- Department of Organic Chemistry
- University of Madras
- Chennai-600 025, India
- Department of Chemistry
- School of Basic and Applied Sciences
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14
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Lalitha K, Jenifer P, Prasad YS, Muthusamy K, John G, Nagarajan S. A self-assembled π-conjugated system as an anti-proliferative agent in prostate cancer cells and a probe for intra-cellular imaging. RSC Adv 2014. [DOI: 10.1039/c4ra07710e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein, self-assembled π-conjugated systems derived from renewable resource are reported as a probe for intra-cellular imaging and an anti-proliferative agent for PC3 cells.
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Affiliation(s)
- Krishnamoorthy Lalitha
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613401, INDIA
| | - Preethi Jenifer
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613401, INDIA
| | - Y. Siva Prasad
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613401, INDIA
| | - Kumarasamy Muthusamy
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613401, INDIA
| | - George John
- Department of Chemistry
- The City College of New York
- New York, USA
| | - Subbiah Nagarajan
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613401, INDIA
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15
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Hemamalini A, Das TM. Exploration, synthesis and studies of gel forming simple sugar-chalcone derivatives. RSC Adv 2014. [DOI: 10.1039/c4ra06544a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Simple sugar-chalcone derivatives have been obtained by aldol condensation where aglycon–chalcone dimer was obtained as an unexpected product in addition to the sugar-chalcone
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Affiliation(s)
- Arasappan Hemamalini
- Department of Organic Chemistry
- University of Madras
- Guindy Campus
- Chennai-600 025, India
| | - Thangamuthu Mohan Das
- Department of Organic Chemistry
- University of Madras
- Guindy Campus
- Chennai-600 025, India
- Department of Chemistry
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16
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Hemamalini A, Das TM. Studies on the synthesis of a sugar triazole based ligand for protein and DNA binding. RSC Adv 2014. [DOI: 10.1039/c4ra04084h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bis-triazole derivatives accomplished by [3 + 2] cycloaddition methodology were well characterized. Interaction of bis-triazoles with BSA and CT-DNA had good correlation with experimental and docking studies. Compounds showed moderate to excellent antibacterial activity.
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Affiliation(s)
| | - Thangamuthu Mohan Das
- Department of Organic Chemistry
- University of Madras
- Chennai-600 025, India
- Department of Chemistry
- School of Basic and Applied Sciences
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17
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Dhinakaran MK, Soundarajan K, Mohan Das T. Self-assembly of novel benzimidazole N-glycosylamines into nanofibers and nanospheres. NEW J CHEM 2014. [DOI: 10.1039/c4nj00038b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu2+ ions induce the change in the morphology of self-assembled benzimidazole N-glycosylamines from nano-fibers to nano-spheres.
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Affiliation(s)
| | - Kamalakannan Soundarajan
- Department of Chemistry
- School of Basic and Applied Sciences
- Central University of Tamil Nadu
- Thiruvarur-610 004, India
| | - Thangamuthu Mohan Das
- Department of Organic Chemistry
- University of Madras
- Chennai 600 025, India
- Department of Chemistry
- School of Basic and Applied Sciences
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Shanmugam MJ, Mohan Das T. A concise pathway to synthesize a novel class of pyrido(2,3-d)pyrimidine-C-β-d-glycosides. Carbohydr Res 2013; 368:40-6. [DOI: 10.1016/j.carres.2012.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 11/03/2012] [Accepted: 11/16/2012] [Indexed: 12/22/2022]
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19
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Hemamalini A, Mohan Das T. Design and synthesis of sugar-triazole low molecular weight gels as mercury ion sensor. NEW J CHEM 2013. [DOI: 10.1039/c3nj00072a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Rajaganesh R, Mohan Das T. A facile one-pot synthesis of biphenyl methyl-C-β-d-glycosides. Carbohydr Res 2012; 357:139-42. [DOI: 10.1016/j.carres.2012.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 04/30/2012] [Accepted: 05/03/2012] [Indexed: 11/26/2022]
Affiliation(s)
- Ramanathan Rajaganesh
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
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Hemamalini A, Nagarajan S, Mohan Das T. A novel class of sugar-based ether-linked-dispirooxindolo-pyrrolidines/pyrrolizidines through [3+2]-cycloaddition of azomethine ylides. Carbohydr Res 2012; 352:12-7. [DOI: 10.1016/j.carres.2012.01.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 01/23/2012] [Accepted: 01/25/2012] [Indexed: 10/14/2022]
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22
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Nagarajan S, Arjun P, Raaman N, Shah A, Sobhia ME, Das TM. Stereoselective synthesis of sugar-based β-lactam derivatives: docking studies and its biological evaluation. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.02.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Dhinakaran MK, Mohan Das T. Studies on a novel class of triaryl pyridine N-glycosylamine amphiphiles as super gelators. Org Biomol Chem 2012; 10:2077-83. [DOI: 10.1039/c2ob06834f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Design, synthesis, and biological evaluation of a novel class of fluorescein-based N-glycosylamines. Carbohydr Res 2011; 346:1776-85. [DOI: 10.1016/j.carres.2011.06.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Revised: 05/19/2011] [Accepted: 06/01/2011] [Indexed: 11/23/2022]
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A facile synthesis of sugar-pyrazole derivatives. Carbohydr Res 2011; 346:1814-9. [DOI: 10.1016/j.carres.2011.06.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 06/15/2011] [Accepted: 06/16/2011] [Indexed: 11/20/2022]
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Studies on the synthesis and the antimicrobial and antioxidant activities of a novel class of fluorescein-based glycosides. Carbohydr Res 2011; 346:2362-7. [PMID: 21903205 DOI: 10.1016/j.carres.2011.08.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Revised: 07/27/2011] [Accepted: 08/03/2011] [Indexed: 11/22/2022]
Abstract
Facile glycosylation of a fluorescein diol derivative with per-O-acetyl/benzoyl sugar derivatives using BF(3)·Et(2)O catalyst resulted in the formation of the expected glycosides in 54-66% yield. The biological screening of the glycosides against different microbes shows good inhibitory activity. The antioxidant activity of the fluorescein-based glycosides shows remarkable inhibition (IC(50) ∼80%).
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Bile acid alkylamide derivatives as low molecular weight organogelators: Systematic gelation studies and qualitative structural analysis of the systems. J Colloid Interface Sci 2011; 360:633-44. [DOI: 10.1016/j.jcis.2011.04.112] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Revised: 04/27/2011] [Accepted: 04/28/2011] [Indexed: 11/19/2022]
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Nagarajan S, Jeganathan Shanmugam M, Mohan Das T. Studies on the synthesis of ether-, substituted alkyl-, or aryl-linked C-disaccharide derivatives. Carbohydr Res 2011; 346:722-7. [DOI: 10.1016/j.carres.2011.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 02/02/2011] [Accepted: 02/07/2011] [Indexed: 11/29/2022]
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Nagarajan S, Arjun P, Raaman N, Das TM. Regioselective facile one-pot Friedländer synthesis of sugar-based heterocyclic biomolecules. Carbohydr Res 2010; 345:1988-97. [DOI: 10.1016/j.carres.2010.07.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2010] [Accepted: 07/08/2010] [Indexed: 11/24/2022]
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Rajaganesh R, Jayakumar J, Sivaraj C, Raaman N, Das TM. Synthesis and antioxidant activity of a novel class of 4,6-O-protected O-glycosides and their utility in disaccharide synthesis. Carbohydr Res 2010; 345:1649-57. [DOI: 10.1016/j.carres.2010.04.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Revised: 02/09/2010] [Accepted: 04/22/2010] [Indexed: 10/19/2022]
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Nagarajan S, Kumbhar A, Varghese B, Das TM. Structural and DNA cleavage of sugar-derived Schiff base ligands and their dinuclear Cu(II) complexes. Carbohydr Res 2010; 345:1077-83. [DOI: 10.1016/j.carres.2010.01.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 01/13/2010] [Accepted: 01/20/2010] [Indexed: 10/19/2022]
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Kumar AS, Sornambikai S, Deepika L, Zen JM. Highly selective immobilization of amoxicillin antibiotic on carbon nanotube modified electrodes and its antibacterial activity. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm02262d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nagarajan S, Ravinder P, Subramanian V, Mohan Das T. Protecting group/halogen effect of N-glycosylamines on the self assembly of organogelator. NEW J CHEM 2010. [DOI: 10.1039/b9nj00400a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nagarajan S, Mohan Das T. A sugar–pyrene-based fluorescent gelator: nanotubular architecture and interaction with SWCNTs. NEW J CHEM 2009. [DOI: 10.1039/b9nj00395a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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