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Athiyarath V, Mathew LA, Zhao Y, Khazeber R, Ramamurty U, Sureshan KM. Rational design and topochemical synthesis of polymorphs of a polymer. Chem Sci 2023; 14:5132-5140. [PMID: 37206383 PMCID: PMC10189859 DOI: 10.1039/d3sc00053b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 04/13/2023] [Indexed: 05/21/2023] Open
Abstract
Packing a polymer in different ways can give polymorphs of the polymer having different properties. β-Turn forming peptides such as 2-aminoisobutyric acid (Aib)-rich peptides adopt several conformations by varying the dihedral angles. Aiming at this, a β-turn-forming peptide monomer would give different polymorphs and these polymorphs upon topochemical polymerization would yield polymorphs of the polymer, we designed an Aib-rich monomer N3-(Aib)3-NHCH2-C[triple bond, length as m-dash]CH. This monomer crystallizes as two polymorphs and one hydrate. In all forms, the peptide adopts β-turn conformations and arranges in a head-to-tail manner with their azide and alkyne units proximally placed in a ready-to-react alignment. On heating, both the polymorphs undergo topochemical azide-alkyne cycloaddition polymerization. Polymorph I polymerized in a single-crystal-to-single-crystal (SCSC) fashion and the single-crystal X-ray diffraction analysis of the polymer revealed its screw-sense reversing helical structure. Polymorph II maintains its crystallinity during polymerization but gradually becomes amorphous upon storage. The hydrate III undergoes a dehydrative transition to polymorph II. Nanoindentation studies revealed that different polymorphs of the monomer and the corresponding polymers exhibited different mechanical properties, in accordance with their crystal packing. This work demonstrates the promising future of the marriage of polymorphism and topochemistry for obtaining polymorphs of polymers.
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Affiliation(s)
- Vignesh Athiyarath
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Liby Ann Mathew
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Yakai Zhao
- School of Mechanical and Aerospace Engineering, Nanyang Technological University 639798 Singapore
| | - Ravichandran Khazeber
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Upadrasta Ramamurty
- School of Mechanical and Aerospace Engineering, Nanyang Technological University 639798 Singapore
| | - Kana M Sureshan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
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Giri RS, Mandal B. Unique crystallographic signatures of Boc-Gly-Phe-Phe-OMe and Boc-Gly-Phg-Phe-OMe and their self-association. CrystEngComm 2019. [DOI: 10.1039/c8ce01723a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The crystal structures and morphology of Boc-Gly-Phe-Phe-OMe (1) and Boc-Gly-Phg-Phe-OMe (2) are reported. While 1 forms a rare open turn conformation, 2 forms a β-sheet conformation.
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Affiliation(s)
- Rajat Subhra Giri
- Department of Chemistry
- Laboratory of Peptide and Amyloid Research
- Indian Institute of Technology Guwahati
- India
| | - Bhubaneswar Mandal
- Department of Chemistry
- Laboratory of Peptide and Amyloid Research
- Indian Institute of Technology Guwahati
- India
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3
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Sharma A, Tiwari P, Dutt Konar A. The dominant role of side chains in supramolecular double helical organisation in synthetic tripeptides. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Nandi S, Maji K, Haldar D. Self-Healing Hydrogel from a Dipeptide and HCl Sensing. ACS OMEGA 2018; 3:3744-3751. [PMID: 31458618 PMCID: PMC6641447 DOI: 10.1021/acsomega.8b00358] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 03/22/2018] [Indexed: 05/03/2023]
Abstract
Ordered self-assembly of small organic molecules may induce novel properties in a supramolecular arrangement and can act as advance functional materials. This paper discusses the development of a new stimuli-responsive dipeptide hydrogelator containing l-phenylalanine and α-aminoisobutyric acid (Aib). The dipeptide Boc-Phe-Aib-OH, on addition with three equivalent of sodium hydroxide and water, transformed into a robust hydrogel. The transparent hydrogel is self-healing in nature. The instant gelation is highly selective toward sodium hydroxide and does not need any sonication or heating-cooling cycle. The thixotropic nature of the gel has been confirmed by rheological step-strain experiments at room temperature. Moreover, in the oil-water mixture, the compound exhibits phase-selective gelation. When the gel cylinder is cut into pieces, it does not conduct electricity, but once self-healing occurs, it conducts electricity. The diffusion of rhodamine 6G through the hydrogel indicates the dynamic nature. The hydrogel is highly sensitive toward HCl, that is, in the presence of HCl vapor, the gel becomes deformed.
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Affiliation(s)
- Sujay
Kumar Nandi
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Kolkata, Mohanpur 741246, West Bengal, India
| | - Krishnendu Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Kolkata, Mohanpur 741246, West Bengal, India
| | - Debasish Haldar
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Kolkata, Mohanpur 741246, West Bengal, India
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Tiwari P, Basu A, Sahu S, Gound S, Christman RM, Tiwari AK, Trivedi P, DuttKonar A. An auxin–tyrosine derivative based biocompatible supergelator: a template for fabrication of nanoparticles for sustained release of model drugs. NEW J CHEM 2018. [DOI: 10.1039/c7nj04390b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This report reveals the supergelating ability of an auxin-tyrosine derivative based biocompatible hydrogel in drug delivery.
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Affiliation(s)
- Priyanka Tiwari
- Dept. of Chemistry
- Rajiv Gandhi Technological University
- Bhopal
- India
| | - Anindya Basu
- School of Pharmaceutical Sciences
- Rajiv Gandhi Technological University
- Bhopal-462033
- India
| | - Sonu Sahu
- School of Pharmaceutical Sciences
- Rajiv Gandhi Technological University
- Bhopal-462033
- India
| | - Sadhna Gound
- School of Pharmaceutical Sciences
- Rajiv Gandhi Technological University
- Bhopal-462033
- India
| | - Ryann M. Christman
- Department of Pharmacology and Experimental Therapeutics
- College of Pharmacy and Pharmaceutical Sciences
- University of Toledo
- USA
| | - Amit K. Tiwari
- Department of Pharmacology and Experimental Therapeutics
- College of Pharmacy and Pharmaceutical Sciences
- University of Toledo
- USA
| | - Piyush Trivedi
- School of Pharmaceutical Sciences
- Rajiv Gandhi Technological University
- Bhopal-462033
- India
| | - Anita DuttKonar
- Dept. of Chemistry
- Rajiv Gandhi Technological University
- Bhopal
- India
- School of Pharmaceutical Sciences
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Sharma A, Goswami S, Rajagopalan R, Konar AD. Supramolecular heterogeneity in β-turn forming synthetic tripeptides nucleated by isomers of fluorinated phenylalanine and aib as corner residues. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1075021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ankita Sharma
- Department of Chemistry and School of Pharmaceutical Sciences, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal, Madhya Pradesh, 462033, India
| | - Soumyabrata Goswami
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Indore By-Pass Road, Bhauri, Bhopal 462023, Madhya Pradesh, India
| | - R. Rajagopalan
- Department of Chemistry and School of Pharmaceutical Sciences, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal, Madhya Pradesh, 462033, India
| | - Anita Dutt Konar
- Department of Chemistry and School of Pharmaceutical Sciences, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal, Madhya Pradesh, 462033, India
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Paira TK, Saha A, Banerjee S, Das T, Das P, Jana NR, Mandal TK. Fluorescent amphiphilic PEG-peptide-PEG triblock conjugate micelles for cell imaging. Macromol Biosci 2014; 14:929-35. [PMID: 24687698 DOI: 10.1002/mabi.201400083] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Indexed: 12/18/2022]
Abstract
A fluorescent amphiphilic poly(ethylene glycol)-peptide-fluorophore-peptide-poly(ethylene glycol) (PEG-Pep-F-Pep-PEG) triblock conjugate with a hydrophobic fluorophore moiety at the centre of the chain is synthesized by "grafting to" technique based on Schiff-base coupling chemistry. The conjugate is characterized by nuclear magnetic resonance (NMR), circular dichroism (CD), and fluorescence spectroscopy techniques. The aqueous solution of the triblock conjugate emits blue light and exhibits a fluorescence emission band at 430 nm. The amphiphilic conjugate molecules undergo self-assembly into micelles (D ≈ 15-20 nm) in aqueous solution as confirmed from transmission electron microscopy (TEM) and dynamic light scattering (DLS). The critical aggregation concentration is determined by pyrene fluorescence assay and is found to be 0.051 mg mL(-1) . The highly stable and low toxic fluorescent PEG-Pep-F-Pep-PEG conjugate micelles are used for imaging of HeLa cells.
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Affiliation(s)
- Tapas K Paira
- Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700 032, India
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Konar AD. The unique crystallographic signature of a β-turn mimic nucleated by N-methylated phenylalanine and Aib as corner residue: conformational and self-assembly studies. CrystEngComm 2013. [DOI: 10.1039/c3ce41448e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pandey P, Pramanik A, Chakraborty T. Probing secondary structures of end-capped tripeptide, BOC–Phe–Aib–Leu–OMe by combined study of infrared spectroscopy and quantum chemistry calculation. Chem Phys 2011. [DOI: 10.1016/j.chemphys.2011.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kar S, Pramanik A. pH Responsive Soft Vesicles through Self-assembly of Peptide β-Turns. CHEM LETT 2011. [DOI: 10.1246/cl.2011.564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Loughlin WA, Tyndall JDA, Glenn MP, Hill TA, Fairlie DP. Update 1 of: Beta-Strand Mimetics. Chem Rev 2011; 110:PR32-69. [DOI: 10.1021/cr900395y] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wendy A. Loughlin
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
| | - Joel D. A. Tyndall
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
| | - Matthew P. Glenn
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
| | - Timothy A. Hill
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
| | - David P. Fairlie
- School of Science, Nathan Campus, Griffith University, Brisbane, QLD 4111, Australia, and Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD 4072, Australia This is a Chemical Reviews Perennial Review. The root paper of this title was published in Chem. Rev. 2004, 104 (12), 6085−6117, DOI: 10.1021/cr040648k; Published (Web) Nov. 4, 2004. Updates to the text appear in red type
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Peptidomimetic design of unusual turns by incorporating flexible and rigid ω-amino acids simultaneously. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2009.10.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kar S, Dutta A, Drew MG, Koley P, Pramanik A. Design of supramolecular β-sheet forming β-turns containing aromatic rings and non-coded α-aminoisobutyric acid and the formation of flat fibrillar structures through self-assembly. Supramol Chem 2009. [DOI: 10.1080/10610270802709378] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Sudeshna Kar
- a Department of Chemistry , University of Calcutta , Kolkata, India
| | - Arpita Dutta
- a Department of Chemistry , University of Calcutta , Kolkata, India
| | - Michael G.B. Drew
- b School of Chemistry, The University of Reading, Whiteknights , Reading, UK
| | - Pradyot Koley
- a Department of Chemistry , University of Calcutta , Kolkata, India
| | - Animesh Pramanik
- a Department of Chemistry , University of Calcutta , Kolkata, India
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Dutta A, Drew MG, Pramanik A. Design of a turn-linker-turn foldamer by incorporating meta-amino benzoic acid in the middle of a helix forming hexapeptide sequence: A helix breaking approach. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2009.04.037] [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]
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Dutt A, Dutta A, Kar S, Koley P, Drew MG, Pramanik A. Stabilization of two smallest possible diastereomeric β-hairpins in a water soluble tetrapeptide containing non-coded α-amino isobutyric acid (Aib) and m-amino benzoic acid. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2009.03.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Design of a new foldamer turn-linker-turn in acyclic hexapeptides and formation of channels through self-assembly. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2008.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Dutt A, Dutta A, Mondal R, Spencer EC, Howard JA, Pramanik A. Studies of β-turn opening with model peptides containing non-coded α-amino isobutyric acid. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.075] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Haldar D, Drew MG, Banerjee A. Conformational heterogeneity of tripeptides containing Boc–Leu–Aib as corner residues in the solid state. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.04.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dutt A, Drew MG, Pramanik A. m-Aminobenzoic acid inserted β-turn in acyclic tripeptides: a peptidomimetic design. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.09.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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