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Fabrication of Multilayered Two-Dimensional Micelles and Fibers by Controlled Self-Assembly of Rod-Coil Block Copolymers. Polymers (Basel) 2022; 14:polym14194125. [PMID: 36236073 PMCID: PMC9571386 DOI: 10.3390/polym14194125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/14/2022] [Accepted: 09/18/2022] [Indexed: 11/09/2022] Open
Abstract
Fabricating hierarchical nanomaterials by self-assembly of rod-coil block copolymers attracts great interest. However, the key factors that affect the formation of the hierarchical nanomaterials have not been thoroughly researched. Herein, we have synthesized two diblock copolymers composed of poly(3-hexylthiophene) (P3HT) and polyethylene glycol (PEG). Through a heating, cooling, and aging process, a series of multilayered hierarchical micelles and fibers were prepared in alcoholic solutions. The transition from fibers to hierarchical micelles are strictly influenced by the strength of the π-π stacking interaction, the PEG chain length, and solvent. In isopropanol, the P3HT22-b-PEG43 could self-assemble into hierarchical micelles composed of several two-dimensional (2D) laminar layers, driven by the π-π stacking interaction and van der Waals force. The P3HT22-b-PEG43 could not self-assemble into well-defined nanostructures in methanol and ethanol, but could self-assemble into fibers in isobutanol. However, the P3HT22-b-PEG113 with a longer corona block only self-assembled into fibers in four alcoholic solutions, due to the increase in dissolving capacity and steric hindrance. The sizes and the size distributions of the nanostructures both increased with the increase in polymer concentration and the decrease in solvent polarity. This study shows a method to fabricate the hierarchical micelles.
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Pramanik B, Das S, Das D. Aggregation-directed High Fidelity Sensing of Picric Acid by a Perylenediimide-based Luminogen. Chem Asian J 2020; 15:4291-4296. [PMID: 33137228 DOI: 10.1002/asia.202001184] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Indexed: 11/09/2022]
Abstract
Widespread use of picric acid (PA) in chemical industries and deadly explosives poses dreadful impact on all living creatures as well as the natural environment and has raised global concerns that necessitate the development of fast and efficient sensing platforms. To address this issue, herein, we report a perylenediimide-peptide conjugate, PDI-1, for detection of PA in methanol. The probe displays typical aggregation caused quenching (ACQ) behaviour and exhibits a fluorescence "turn-off" sensory response towards PA which is unaffected by the presence of other interfering nitroaromatic compounds. The sensing mechanism involves PA induced aggregation of the probe into higher order tape like structures which leads to quenching of emission. The probe possesses a low detection limit of 5.6 nM or 1.28 ppb and a significantly high Stern-Volmer constant of 6.87×104 M-1 . It also exhibits conducting properties in the presence of PA vapours and thus represents a prospective candidate for vapour phase detection of PA. This is, to the best of our knowledge, the first example of a perylenediimide based probe that demonstrates extremely specific, selective and sensitive detection of PA and thus grasps the potential for application in practical scenarios.
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Affiliation(s)
- Bapan Pramanik
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Kamrup, Assam, 781039, India.,Present address: Department of Chemistry, Ben-Gurion University of Negev, Beer Sheva, 84105, Israel
| | - Saurav Das
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Kamrup, Assam, 781039, India
| | - Debapratim Das
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Kamrup, Assam, 781039, India
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Yang Y, Zhong K, Chen T, Jin LY. Morphological Control of Coil-Rod-Coil Molecules Containing m-Terphenyl Group: Construction of Helical Fibers and Helical Nanorings in Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10613-10621. [PMID: 30107734 DOI: 10.1021/acs.langmuir.8b01904] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Rod-coil molecules, composed of rigid segments and flexible coil chains, have a strong intrinsic ability to self-assemble into diverse supramolecular nanostructures. Herein, we report the synthesis and the morphological control of a new series of amphiphilic coil-rod-coil molecular isomers 1-2 containing flexible oligoether chains. These molecules are comprised of m-terphenyl and biphenyl groups, along with triple bonds, and possess lateral methyl or butyl groups at the coil or rod segments. The results of this study suggest that the morphology of supramolecular aggregates is significantly influenced by the lateral alkyl groups and by the sequence of the rigid fragments in the bulk and in aqueous solution. The molecules with different coils self-assemble into lamellar or oblique columnar structures in the bulk state. In aqueous solution, molecule 1a, with a lack of lateral groups, self-assembled into large strips of sheets, whereas exquisite nanostructures of helical fibers were obtained from molecule 1b, which incorporated lateral methyl groups between the rod and coil segments. Interestingly, molecule 1c with lateral butyl and methyl groups exhibited a strong self-organizing capacity to form helical nanorings. Nanoribbons, helical fibers, and small nanorings were simultaneously formed from the 2a-2c, which are structural isomers of 1a, 1b, and 1c. Accurate control of these supramolecular nanostructures can be achieved by tuning the synergistic interactions of the noncovalent driving force with hydrophilic-hydrophobic interactions in aqueous solution.
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Affiliation(s)
- Yuntian Yang
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science , Yanbian University , Yanji 133002 , China
| | - Keli Zhong
- College of Chemistry, Chemical Engineering and Food Safety, Bohai University , Jinzhou 121013 , China
| | - Tie Chen
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science , Yanbian University , Yanji 133002 , China
| | - Long Yi Jin
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science , Yanbian University , Yanji 133002 , China
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Kulkarni B, Jayakannan M. Fluorescent-Tagged Biodegradable Polycaprolactone Block Copolymer FRET Probe for Intracellular Bioimaging in Cancer Cells. ACS Biomater Sci Eng 2017; 3:2185-2197. [DOI: 10.1021/acsbiomaterials.7b00426] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bhagyashree Kulkarni
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
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5
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Saxena S, Jayakannan M. π-Conjugate Fluorophore-Tagged and Enzyme-Responsive l-Amino Acid Polymer Nanocarrier and Their Color-Tunable Intracellular FRET Probe in Cancer Cells. Biomacromolecules 2017; 18:2594-2609. [DOI: 10.1021/acs.biomac.7b00710] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sonashree Saxena
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
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6
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Shinde S, Asha SK. Temperature Sensitive Emission Color Tuning and White Light Emission in Segmented OPV Polymer: Perylene Bisimide Supramolecular Complex. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01708] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shekhar Shinde
- Polymer
Science and Engineering Division, CSIR-Network of Institutes for Solar Energy, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research, New Delhi 110025, India
| | - S. K. Asha
- Polymer
Science and Engineering Division, CSIR-Network of Institutes for Solar Energy, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research, New Delhi 110025, India
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7
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Yang Y, Cui J, Li Z, Zhong K, Jin LY, Lee M. Self-Assembly of n-Shaped Rod–Coil Molecules into Thermoresponsive Nanoassemblies: Construction of Reversible Helical Nanofibers in Aqueous Environment. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01347] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yuntian Yang
- Key
Laboratory for Organism Resources of the Changbai Mountain and Functional
Molecules, Ministry of Education, and Department of Chemistry, College
of Science, Yanbian University, Yanji 133002, China
| | - Junjie Cui
- Center
for Supramolecular Optoelectronic
Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
| | - Zhaohua Li
- Key
Laboratory for Organism Resources of the Changbai Mountain and Functional
Molecules, Ministry of Education, and Department of Chemistry, College
of Science, Yanbian University, Yanji 133002, China
| | - Keli Zhong
- College
of Chemistry, Chemical Engineering and Food Safety, Bohai University, Jinzhou 121013, China
| | - Long Yi Jin
- Key
Laboratory for Organism Resources of the Changbai Mountain and Functional
Molecules, Ministry of Education, and Department of Chemistry, College
of Science, Yanbian University, Yanji 133002, China
| | - Myongsoo Lee
- State
Key Lab of Supramolecular Structure and Materials and College of Chemistry, Jilin University, Changchun 130012, China
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Narasimha K, Jayakannan M. Color-Tunable Amphiphilic Segmented π-Conjugated Polymer Nano-Assemblies and Their Bioimaging in Cancer Cells. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00660] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Karnati Narasimha
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi
Bhabha Road, Pune 411008, Maharashtra India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi
Bhabha Road, Pune 411008, Maharashtra India
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9
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Kulkarni B, Surnar B, Jayakannan M. Dual Functional Nanocarrier for Cellular Imaging and Drug Delivery in Cancer Cells Based on π-Conjugated Core and Biodegradable Polymer Arms. Biomacromolecules 2016; 17:1004-16. [DOI: 10.1021/acs.biomac.5b01654] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bhagyashree Kulkarni
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha
Road, Pune, 411008 Maharashtra, India
| | - Bapurao Surnar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha
Road, Pune, 411008 Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha
Road, Pune, 411008 Maharashtra, India
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Goel M, Narasimha K, Jayakannan M. Direct Evidence for Secondary Interactions in Planar and Nonplanar Aromatic π-Conjugates and Their Photophysical Characteristics in Solid-State Assemblies. J Phys Chem B 2015; 119:5102-12. [DOI: 10.1021/acs.jpcb.5b01956] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mahima Goel
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha
Road, Pune 411008, Maharashtra, India
| | - Karnati Narasimha
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha
Road, Pune 411008, Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha
Road, Pune 411008, Maharashtra, India
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11
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Chakraborty C, Bera MK, Rana U, Malik S. Vice versa donor acceptor fluorene–ferrocene alternate copolymer: a twisted ribbon for electrical switching. Chem Commun (Camb) 2015; 51:13123-6. [DOI: 10.1039/c5cc04275e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Two donor–acceptor type copolymers (PFFC-1 and PFFC-2) containing ferrocene and fluorene moieties have been successfully synthesized to evaluate the redox triggered optical and electronic properties.
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Affiliation(s)
- Chanchal Chakraborty
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Jadavpur
- India
| | - Manas Kumar Bera
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Jadavpur
- India
| | - Utpal Rana
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Jadavpur
- India
| | - Sudip Malik
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Jadavpur
- India
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12
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Narasimha K, Jayakannan M. π-Conjugated polymer anisotropic organogel nanofibrous assemblies for thermoresponsive photonic switches. ACS APPLIED MATERIALS & INTERFACES 2014; 6:19385-19396. [PMID: 25312221 DOI: 10.1021/am505479z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The present work demonstrates one of the first examples of π-conjugated photonic switches (or photonic wave plates) based on the tailor-made π-conjugated polymer anisotropic organogel. New semicrystalline segmented π-conjugated polymers are designed with rigid aromatic oligophenylenevinylene π-core and flexible alkyl chain along the polymer backbone. These polymers are found to be self-assembled as semicrystalline or amorphous with respect to the number of carbon atoms in the alkyl units. These semicrystalline polymers produce organogels having nanofibrous morphology of 20 nm thickness with length up to 5 μm. The polymer organogel is aligned in a narrow glass capillary, and this anisotropic gel device is further demonstrated as photonic switches. The glass capillary device behaves as typical λ/4 photonic wave plates upon the illumination of the plane polarized light. The λ/4 photonic switching ability is found to be maximum at θ = 45° angle under the cross polarizers. The orthogonal arrangements of the gel capillaries produce dark and bright spots as on-and-off optical switches. Thermoreversibility of the polymer organogel (also its xerogel) was exploited to construct thermoresponsive photonic switches for the temperature window starting from 25 to 160 °C. The organic photonic switch concept can be adapted to large number of other π-conjugated materials for optical communication and storage.
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Affiliation(s)
- Karnati Narasimha
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) , Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
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