1
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Parisi E, Adorinni S, Garcia AM, Kralj S, De Zorzi R, Marchesan S. Self-assembling tripeptide forming water-bound channels and hydrogels. J Pept Sci 2023; 29:e3524. [PMID: 37226306 DOI: 10.1002/psc.3524] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/26/2023]
Abstract
D-Ser(tBu)-L-Phe-L-Trp is described as a self-assembling tripeptide that yields nanofibrillar hydrogels at physiological conditions (phosphate buffer at pH 7.4). The peptide is characterized by several spectroscopic methods, such as circular dichroism and fluorescence, oscillatory rheometry, and transmission electron microscopy. Single-crystal X-ray diffraction reveals supramolecular packing into water-bound channels and allows the visualization of the intermolecular interactions holding together peptide stacks.
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Affiliation(s)
- Evelina Parisi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy
| | - Simone Adorinni
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy
| | - Ana M Garcia
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy
| | - Slavko Kralj
- Department for Materials Synthesis, Jožef Stefan Institute, Ljubljana, Slovenia
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Rita De Zorzi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy
| | - Silvia Marchesan
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy
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2
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Maity T, Paul S, De P. Side-chain amino acid-based macromolecular architectures. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2023. [DOI: 10.1080/10601325.2023.2169158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Tanmoy Maity
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Nadia, West Bengal, India
| | - Soumya Paul
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, 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, Nadia, West Bengal, India
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3
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Kumari S, Avais M, Chattopadhyay S. High molecular weight multifunctional fluorescent polyurea: Isocyanate-free fast synthesis, coating applications and photoluminescence studies. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125219] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Ghorai S, Jana B, Pan D, Ramasamy T, Parshi N, Arumugam G, Ganguly J. Evaluation of nanofibril chitosan@8‐formyl‐7‐hydroxy‐coumarin hydrogel having distinct auto‐fluorescence efficiency: Structure–properties relation, improved antioxidant, and cellular imaging. J Appl Polym Sci 2022. [DOI: 10.1002/app.52908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shubhankar Ghorai
- Department of Chemistry Indian Institute of Engineering Science and Technology Howrah India
| | - Biswajit Jana
- Department of Chemistry Indian Institute of Engineering Science and Technology Howrah India
| | - Dipika Pan
- Department of Chemistry Indian Institute of Engineering Science and Technology Howrah India
| | - Thilagam Ramasamy
- Microbiology Division CSIR‐Central Leather Research Institute, Adyar Chennai India
| | - Nira Parshi
- Department of Chemistry Indian Institute of Engineering Science and Technology Howrah India
| | - Gnanamani Arumugam
- Microbiology Division CSIR‐Central Leather Research Institute, Adyar Chennai India
| | - Jhuma Ganguly
- Department of Chemistry Indian Institute of Engineering Science and Technology Howrah India
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5
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Shahi S, Roghani-Mamaqani H, Talebi S, Mardani H. Chemical stimuli-induced reversible bond cleavage in covalently crosslinked hydrogels. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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6
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7
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Bhattacharya S, Patra D, Shunmugam R. Triphenylphosphonium conjugated quaternary ammonium based gel: synthesis and potential application in the efficient removal of toxic acid orange 7 dye from aqueous solution. NEW J CHEM 2020. [DOI: 10.1039/d0nj02138e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The concerted influence of quaternary ammonium and triphenylphosphonium moieties in a gel for removal of acid orange 7 from aqueous solutions.
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Affiliation(s)
- Sayantani Bhattacharya
- Polymer Research Centre
- Department of Chemical Sciences and Centre for Advanced Functional Materials
- Indian Institute of Science Education and Research Kolkata
- Mohanpur
- India
| | - Diptendu Patra
- Polymer Research Centre
- Department of Chemical Sciences and Centre for Advanced Functional Materials
- Indian Institute of Science Education and Research Kolkata
- Mohanpur
- India
| | - Raja Shunmugam
- Polymer Research Centre
- Department of Chemical Sciences and Centre for Advanced Functional Materials
- Indian Institute of Science Education and Research Kolkata
- Mohanpur
- India
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8
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Rajak A, Karan CK, Theato P, Das A. Supramolecularly cross-linked amphiphilic block copolymer assembly by the dipolar interaction of a merocyanine dye. Polym Chem 2020. [DOI: 10.1039/c9py01492f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Dipolar interaction driven dimerization of a merocyanine (MC) dye has been exploited to achieve non-covalently crosslinked stable micelles in water and reverse micelles in toluene with emissive properties from a MC-pendant amphiphilic block copolymer.
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Affiliation(s)
- Aritra Rajak
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - Chandan Kumar Karan
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - Patrick Theato
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
- D-76131 Karlsruhe
- Germany
- Soft Matter Synthesis Laboratory
| | - Anindita Das
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
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9
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Jana S, Anas M, Maji T, Banerjee S, Mandal TK. Tryptophan-based styryl homopolymer and polyzwitterions with solvent-induced UCST, ion-induced LCST and pH-induced UCST. Polym Chem 2019. [DOI: 10.1039/c8py01512k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A multi-stimuli responsive tryptophan-based styryl homopolymer and polyzwitterions with solvent-induced UCST, ion-induced LCST and pH-induced UCST under different conditions are presented.
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Affiliation(s)
- Somdeb Jana
- Polymer Science Unit
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Mahammad Anas
- Polymer Science Unit
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Tanmoy Maji
- Polymer Science Unit
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Sanjib Banerjee
- Polymer Science Unit
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Tarun K. Mandal
- Polymer Science Unit
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
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10
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Mete S, Goswami KG, Ksendzov E, Kostjuk SV, De P. Modulation of side chain crystallinity in alternating copolymers. Polym Chem 2019. [DOI: 10.1039/c9py01340g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A remarkable enhancement in crystalline melting temperature (Tm) was observed in a series of fatty acids and mPEG containing alternating copolymers with the lone increase in mPEG chain lengths.
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Affiliation(s)
- Sourav Mete
- Polymer Research Centre and Centre for Advanced Functional Materials
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur - 741246, Nadia
- India
| | - Krishna Gopal Goswami
- Polymer Research Centre and Centre for Advanced Functional Materials
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur - 741246, Nadia
- India
| | - Evgenii Ksendzov
- Research Institute for Physical Chemical Problems of the Belarusian State University
- Minsk
- Belarus
| | - Sergei V. Kostjuk
- Research Institute for Physical Chemical Problems of the Belarusian State University
- Minsk
- Belarus
- Sechenov First Moscow State Medical University
- Institute for Regenerative Medicine
| | - 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
- India
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11
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Nandi M, Banerjee S, De P. Stearoyl-appended pendant amino acid-based hyperbranched polymers for selective gelation of oil from oil/water mixtures. Polym Chem 2019. [DOI: 10.1039/c9py00105k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stearic acid-appended pendant amino acid-based poly(methacrylate) hyperbranched polymers were developed for the phase-selective organogelation of crude oil from a binary mixture of oil/water.
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Affiliation(s)
- Mridula Nandi
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246, Nadia
- India
| | - Soham Banerjee
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246, Nadia
- India
| | - Priyadarsi De
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246, Nadia
- India
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12
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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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13
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Maity S, Chatterjee A, Chakraborty N, Ganguly J. A dynamic sugar based bio-inspired, self-healing hydrogel exhibiting ESIPT. NEW J CHEM 2018. [DOI: 10.1039/c7nj04178k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A bio-inspired, self-healing chitosan-5-(benzo[d]thiazol-2-yl)-4-hydroxyisophthalaldehyde (CBTHP) fluorescent hydrogel has been developed which exhibits ultrafast ESIPT in both gel and solution phase.
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Affiliation(s)
- Santu Maity
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur
- Howrah-711103
- India
| | | | | | - Jhuma Ganguly
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur
- Howrah-711103
- India
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14
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Bauri K, Nandi M, De P. Amino acid-derived stimuli-responsive polymers and their applications. Polym Chem 2018. [DOI: 10.1039/c7py02014g] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The recent advances achieved in the study of various stimuli-responsive polymers derived from natural amino acids have been reviewed.
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Affiliation(s)
- Kamal Bauri
- Department of Chemistry
- Raghunathpur College
- India
| | - Mridula Nandi
- Polymer Research Centre and Centre for Advanced Functional Materials
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- India
| | - Priyadarsi De
- Polymer Research Centre and Centre for Advanced Functional Materials
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- India
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15
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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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16
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Abstract
Stimuli-responsive polymers respond to a variety of external stimuli, which include optical, electrical, thermal, mechanical, redox, pH, chemical, environmental and biological signals. This paper is concerned with the process of forming such polymers by RAFT polymerization.
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17
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Achieving high gene delivery performance with caveolae-mediated endocytosis pathway by (l)-arginine/(l)-histidine co-modified cationic gene carriers. Colloids Surf B Biointerfaces 2016; 148:73-84. [DOI: 10.1016/j.colsurfb.2016.08.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 08/02/2016] [Accepted: 08/21/2016] [Indexed: 11/20/2022]
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18
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Maiti B, Bauri K, Nandi M, De P. Surface functionalized nano-objects from oleic acid-derived stabilizer via non-polar RAFT dispersion polymerization. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28373] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Binoy Maiti
- Department of Chemical Sciences; Polymer Research Centre, Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 West Bengal India
| | - Kamal Bauri
- Department of Chemical Sciences; Polymer Research Centre, Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 West Bengal India
| | - Mridula Nandi
- Department of Chemical Sciences; Polymer Research Centre, Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 West Bengal India
| | - Priyadarsi De
- Department of Chemical Sciences; Polymer Research Centre, Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 West Bengal India
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19
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Maity N, Kuila A, Chatterjee DP, Mandal D, Nandi AK. An insight into the schizophrenic self-assembly of thermo and proton sensitive graphene oxide grafted block copolymer. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28358] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Nabasmita Maity
- Polymer Science Unit, Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700032 India
| | - Atanu Kuila
- Polymer Science Unit, Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700032 India
| | - Dhruba P. Chatterjee
- Polymer Science Unit, Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700032 India
| | - Debasish Mandal
- Polymer Science Unit, Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700032 India
| | - Arun K. Nandi
- Polymer Science Unit, Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700032 India
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20
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Bauri K, Pan A, Haldar U, Narayanan A, De P. Exploring amino acid-tethered polymethacrylates as CO2-sensitive macromolecules: A concealed property. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28165] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kamal Bauri
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata, Mohanpur; 741246 Nadia West Bengal India
| | - Abhishek Pan
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata, Mohanpur; 741246 Nadia West Bengal India
| | - Ujjal Haldar
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata, Mohanpur; 741246 Nadia West Bengal India
| | - Amal Narayanan
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata, Mohanpur; 741246 Nadia West Bengal India
| | - Priyadarsi De
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata, Mohanpur; 741246 Nadia West Bengal India
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21
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22
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Jena SS, Roy SG, Azmeera V, De P. Solvent-dependent self-assembly behaviour of block copolymers having side-chain amino acid and fatty acid block segments. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2015.12.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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23
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Das S, Chatterjee DP, Ghosh R, Das P, Nandi AK. Water soluble stimuli-responsive star copolymers with multiple encapsulation and release properties. RSC Adv 2016. [DOI: 10.1039/c5ra26144a] [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
Stimuli-responsive, water soluble, nontoxic, star-copolymers showing reversible encapsulation and release of hydrophobic dye/drug molecule with increasing temperature and decreasing pH.
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Affiliation(s)
- Sandip Das
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700 032
- India
| | - Dhruba P. Chatterjee
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700 032
- India
| | - Radhakanta Ghosh
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700 032
- India
| | - Pradip Das
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700 032
- India
| | - Arun K. Nandi
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700 032
- India
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24
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Mukherjee S, Brooks WLA, Dai Y, Sumerlin BS. Doubly-dynamic-covalent polymers composed of oxime and oxanorbornene links. Polym Chem 2016. [DOI: 10.1039/c5py02046h] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two sets of reversible covalent linkages distributed in series along a polymer backbone were used to prepare a new class of doubly dynamic-covalent polymers capable of reversibly dissociatingviatwo distinct pathways.
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Affiliation(s)
- Soma Mukherjee
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - William. L. A. Brooks
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Yuqiong Dai
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
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25
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Bauri K, Roy SG, De P. Side-Chain Amino-Acid-Derived Cationic Chiral Polymers by Controlled Radical Polymerization. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500271] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kamal Bauri
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
| | - Saswati Ghosh Roy
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
| | - Priyadarsi De
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
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26
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27
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Dynamic covalent cross-linked polymer gels through the reaction between side-chain β-keto ester and primary amine groups. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.06.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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28
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Haldar U, Bauri K, Li R, Faust R, De P. Polyisobutylene-Based pH-Responsive Self-Healing Polymeric Gels. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8779-88. [PMID: 25844579 DOI: 10.1021/acsami.5b01272] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This work demonstrates the successful application of dynamic covalent chemistry for the construction of self-healing gels from side-chain primary amine leucine pendant diblock copolymers of polyisobutylene (PIB) ((P(H2N-Leu-HEMA)-b-PIB)) in the presence of PIB based dialdehyde functionalized cross-linker (HOC-PIB-CHO) through imine (-HC═N-) bond formation without aiding any external stimuli. Gels were synthesized in 1,4-dioxane at room temperature at varied wt % of gelator concentration, [H2N]/[CHO] ratios and molecular weight of the block segments. The mechanical property of gels was examined by rheological measurements. We observed higher value of storage modulus (G') than the loss modulus (G″) within the linearity limits of deformation, indicating the rheological behavior in the gel is dominated by an elastic property rather than a viscous property. The G' values significantly depend upon the extent of cross-linking in the gel network. To establish self-healing property of the gels, rheology analysis through step-strain measurements (strain = 0.1 to 200%) at 25 °C was performed. The polymeric gel network shows reversible sol-gel transition for several cycles by adjusting the pH of the medium with the help of hydrochloric acid (HCl) and triethylamine (Et3N) triggers. FT-IR spectroscopy established formation of imine bonds in the gel network and these gels showed poor swelling behavior in various organic solvents because of the small interstitial porosity, confirmed by field emission-scanning electron microscopy (FE-SEM).
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Affiliation(s)
- Ujjal Haldar
- †Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, Nadia, West Bengal India
| | - Kamal Bauri
- †Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, Nadia, West Bengal India
| | - Ren Li
- ‡Polymer Science Program, Department of Chemistry, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, United States
| | - Rudolf Faust
- ‡Polymer Science Program, Department of Chemistry, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, United States
| | - Priyadarsi De
- †Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, Nadia, West Bengal India
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29
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Yu L, Fu W, Li Z. Tuning the phase transition temperature of thermal-responsive OEGylated poly-L-glutamate via random copolymerization with L-alanine. SOFT MATTER 2015; 11:545-550. [PMID: 25420954 DOI: 10.1039/c4sm02270j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Two series of copolymers were prepared by ring-opening polymerization (ROP) of γ-(2-methoxyethoxy)esteryl-L-glutamate (L-EG2Glu) N-carboxyanhydride (NCA) and L-alanine (L-Ala) using HMDS and PEG-NH2 as initiator, respectively. Poly-(L-EG2Glu-co-L-Ala) displayed lower critical solution temperature (LCST) behavior but had a lower phase transition temperature than poly-L-EG2Glu at similar molecular weight (MW). The clouding point (CP) of random copolypeptides can be tuned by altering the alanine content and overall MW. Circular dichroism (CD) and Fourier transform infrared spectroscopy (FTIR) indicated that the thermal-responsive properties depended on the content of ordered conformations. PEG-b-poly-(L-EG2Glu-co-L-Ala) can spontaneously form hydrogels in water at room temperature. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) revealed that these hydrogels were formed by nanoribbons. The intermolecular hydrogen bonding among copolypeptide blocks accounted for the nanoribbon assemblies and hydrogel network formation.
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Affiliation(s)
- Lei Yu
- Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, China.
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Kopanati GN, Seethamraju S, Ramamurthy PC, Madras G. A Surlyn/magnesium oxide nanocomposite as an effective water vapor barrier for organic device encapsulation. RSC Adv 2015. [DOI: 10.1039/c5ra03356j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel system of reactive polymer nanocomposites with MgO was developed, which exhibits superior performances as encapsulants for OPV devices.
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Affiliation(s)
| | - Sindhu Seethamraju
- Centre for Nanoscience and Engineering
- Indian Institute of Science
- Bangalore
- India
| | - Praveen C. Ramamurthy
- Centre for Nanoscience and Engineering
- Indian Institute of Science
- Bangalore
- India
- Department of Materials Engineering
| | - Giridhar Madras
- Department of Chemical Engineering
- Indian Institute of Science
- Bangalore
- India
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31
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Seethamraju S, Ramamurthy PC, Madras G. Reactive interlayer based ultra-low moisture permeable membranes for organic photovoltaic encapsulation. Phys Chem Chem Phys 2015; 17:23165-72. [DOI: 10.1039/c5cp04255k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactive water vapor barrier materials with zero valent iron and copper nanoparticles for organic device encapsulation.
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Affiliation(s)
- Sindhu Seethamraju
- Centre for Nanoscience and Engineering
- Indian Institute of Science
- Bangalore
- India
| | - Praveen C. Ramamurthy
- Centre for Nanoscience and Engineering
- Indian Institute of Science
- Bangalore
- India
- Department of Materials Engineering
| | - Giridhar Madras
- Department of Chemical Engineering
- Indian Institute of Science
- Bangalore
- India
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32
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Haldar U, Nandi M, Maiti B, De P. POSS-induced enhancement of mechanical strength in RAFT-made thermoresponsive hydrogels. Polym Chem 2015. [DOI: 10.1039/c5py00664c] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, covalently cross-linked thermoresponsive hydrogels were prepared with higher mechanical stability by the introduction of polyhedral oligomeric silsesquioxane (POSS) moieties.
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Affiliation(s)
- Ujjal Haldar
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur – 741246, Nadia
- India
| | - Mridula Nandi
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur – 741246, Nadia
- India
| | - Binoy Maiti
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur – 741246, Nadia
- India
| | - Priyadarsi De
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur – 741246, Nadia
- India
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Bauri K, Narayanan A, Haldar U, De P. Polymerization-induced self-assembly driving chiral nanostructured materials. Polym Chem 2015. [DOI: 10.1039/c5py00919g] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Amino acid coated chiral nanostructured soft materials are made by the polymerization induced self-assembly (PISA) technique, where the post-polymerization chemical group transformation leads to a morphological transition.
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Affiliation(s)
- Kamal Bauri
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur-741246, Nadia
- India
| | - Amal Narayanan
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur-741246, Nadia
- India
| | - Ujjal Haldar
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur-741246, Nadia
- India
| | - Priyadarsi De
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur-741246, Nadia
- India
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Narayanan A, Bauri K, Ruidas B, Pradhan G, Banerjee S, De P. Specific counterion repercussions on the thermal, pH-response, and electrochemical properties of side-chain leucine based chiral polyelectrolytes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13430-13437. [PMID: 25333268 DOI: 10.1021/la503452f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Effects of counterions of side chain amino acid based polyelectrolytes (PEs) on the solubility in aqueous medium, pH responsiveness, thermal properties, and ionic conductivities have been appraised. Deprotection of the tert-butyl carbamate (Boc) group from poly(Boc-l-leucine methacryloyloxyethyl ester) [P(Boc-l-Leu-HEMA)] was carried out to produce PE with trifluoroacetate as an associative counteranion (1a). PEs with bis(trifluoromethylsulfonyl)imide and hexafluorophosphate counteranion were prepared through anion exchange reactions of 1a. Protonation of the neutralized polymer (2) obtained from 1a, followed by anion exchange, leads to the production of miscellaneous PEs bearing different counteranions, such as tetrafluoroborate, trifluoromethanesulfonate, chloride, and nitrate. Differential scanning calorimetry traces of the PEs reveal that the comparatively larger and weakly coordinated counteranions require less thermal energy to dissociate, and thus, the glass transition temperature (Tg) of the PEs fall off with an increase in the size of the counteranion. A remarkable conductivity of 2.1 mS/cm was obtained in deionized water when Cl(-) acted as the counteranion. Steric and electronic factors of the counteranion induce a change of transition pH in different PEs, although the chiroptical nature was retained, as confirmed by circular dichroism spectroscopy.
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Affiliation(s)
- Amal Narayanan
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata , Mohanpur-741246, Nadia, West Bengal, India
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Knipe JM, Peppas NA. Multi-responsive hydrogels for drug delivery and tissue engineering applications. Regen Biomater 2014; 1:57-65. [PMID: 26816625 PMCID: PMC4669007 DOI: 10.1093/rb/rbu006] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 08/22/2014] [Indexed: 12/28/2022] Open
Abstract
Multi-responsive hydrogels, or 'intelligent' hydrogels that respond to more than one environmental stimulus, have demonstrated great utility as a regenerative biomaterial in recent years. They are structured biocompatible materials that provide specific and distinct responses to varied physiological or externally applied stimuli. As evidenced by a burgeoning number of investigators, multi-responsive hydrogels are endowed with tunable, controllable and even biomimetic behavior well-suited for drug delivery and tissue engineering or regenerative growth applications. This article encompasses recent developments and challenges regarding supramolecular, layer-by-layer assembled and covalently cross-linked multi-responsive hydrogel networks and their application to drug delivery and tissue engineering.
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Affiliation(s)
- Jennifer M. Knipe
- Department of Chemical Engineering, C0400, The University of Texas at Austin, Austin, TX 78712, USA, Department of Biomedical Engineering, C0800, The University of Texas at Austin, Austin, TX 78712, USA, College of Pharmacy, C0400, The University of Texas at Austin, Austin, TX 78712, USA
| | - Nicholas A. Peppas
- Department of Chemical Engineering, C0400, The University of Texas at Austin, Austin, TX 78712, USA, Department of Biomedical Engineering, C0800, The University of Texas at Austin, Austin, TX 78712, USA, College of Pharmacy, C0400, The University of Texas at Austin, Austin, TX 78712, USA
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Roy SG, De P. pH responsive polymers with amino acids in the side chains and their potential applications. J Appl Polym Sci 2014. [DOI: 10.1002/app.41084] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Saswati Ghosh Roy
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur-741252 Nadia, West Bengal India
| | - Priyadarsi De
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur-741252 Nadia, West Bengal India
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Mondal T, Ghosh S. One pot synthesis and gelation studies of amphiphilic triblock polyurethanes. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27263] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tathagata Mondal
- Polymer Science Unit, Indian Association for the Cultivation of Science; 2A and 2B Raja S. C. Mullick Road Kolkata India 700032
| | - Suhrit Ghosh
- Polymer Science Unit, Indian Association for the Cultivation of Science; 2A and 2B Raja S. C. Mullick Road Kolkata India 700032
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