1
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Googol F, Rahmati A. Synthesis of dicholesteryl organogelator as a green sorbent nanomaterial for oil spill remediation. Sci Rep 2024; 14:21111. [PMID: 39256466 PMCID: PMC11387827 DOI: 10.1038/s41598-024-72077-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 09/03/2024] [Indexed: 09/12/2024] Open
Abstract
In the field of global water purification, the issue of marine oil spills represents a significant challenge. The use of phase-selective organogelators (PSOGs) as sorbent materials in oil spill remediation is a promising solution due to their environmental adaptability and high absorption capacity. However, there are limited reports on PSOGs that can be used in powder form for rapid phase-selective gelation of crude oils. In this context, the development of innovative dicholesteryl derivatives as low-molecular-weight organogelators (LMOGs) offers a promising solution in powder form. These gelators are synthesized through a one-pot multi-component reaction as green synthesis method, which ensures high purity and eliminates the need for harsh conditions. The incorporation of cholesterol into the gelator structure demonstrate environmental adaptability. The exceptional sorption capacity was attributed to the structured 2D/3D networks observed through scanning electron microscopy (SEM). The hydrophobic properties of these gelators, as evidenced by a water contact angle of 118 degrees, enable them to efficiently gel various organic solvents at low concentrations (1% w/v) at ambient temperatures, without the need for heating-cooling cycles or co-solvents. The eco-friendly nature and efficient oil-water separation capabilities of these gelators in powder form represent a significant advancement in global water purification efforts.
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Affiliation(s)
- Faride Googol
- Department of Chemistry, University of Isfahan, P. O. Box 81746-73441, Isfahan, Iran
| | - Abbas Rahmati
- Department of Chemistry, University of Isfahan, P. O. Box 81746-73441, Isfahan, Iran.
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2
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Geng L, Li H, Liu J, Yang Z, Wei J. Molecular Stacking Dependent Molecular Oxygen Activation in Supramolecular Polymeric Photocatalysts. J Phys Chem Lett 2024; 15:3127-3134. [PMID: 38471101 DOI: 10.1021/acs.jpclett.4c00112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Here, we showed that supramolecular assemblies based on perylene diimides (PDIs) are able to activate molecular oxygen through both the electron transfer and energy transfer pathways, which consequently leads to the formation of superoxide radicals (·O2-) and singlet oxygen species (1O2), respectively. These reactive oxygen species (ROS) can effectively lead to oxidative coupling of benzylamine and oxidation of 2-chloroethyl sulfide (CEES). We have designed and synthesized PDIs with similar molecular structures yet differing by the molecular stacking modes. We found that the photooxidation activities of the PDI supramolecular assemblies are inversely associated with the photoluminescence wavelength difference between the assemblies and the monomers (Δλ) quantitatively, and a smaller Δλ results in a higher catalytic efficiency accordingly. Overall, this work contributes to the design and fabrication of high performance photocatalysts based on metal-free organic materials.
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Affiliation(s)
- Lifang Geng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Hui Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Jiaming Liu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Zhijie Yang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Jingjing Wei
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
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3
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Lijina MP, Benny A, Sebastian E, Hariharan M. Keeping the chromophores crossed: evidence for null exciton splitting. Chem Soc Rev 2023; 52:6664-6679. [PMID: 37606527 DOI: 10.1039/d3cs00176h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Fundamental understanding of the supramolecular assemblies of organic chromophores and the development of design strategies have seen endless ripples of interest owing to their exciting photophysical properties and optoelectronic applications. The independent discovery of dye aggregates by Jelley and Scheibe was the commencement of the remarkable advancement in the field of aggregate photophysics. Subsequent research warranted an exceptional model for defining the exciton interactions in aggregates, proposed by Davydov, Kasha and co-workers, independently, based on the long-range Coulombic coupling. Fascinatingly, the orthogonally cross-stacked molecular transition dipole arrangement was foretold by Kasha to possess null exciton interaction leading to spectroscopically uncoupled molecular assembly, which lacked an experimental signature for decades. There have been several attempts to identify and probe atypical molecular aggregates for decoding their optical behaviour. Herein, we discuss the recent efforts in experimentally verifying the unusual exciton interactions supported with quantum chemical computations, primarily focusing on the less explored null exciton splitting. Exciton engineering can be realized through synthetic modifications that can additionally offer control over the assorted non-covalent interactions for orchestrating precise supramolecular assembly, along with molecular editing. The task of attaining a minimal excitonic coupling through an orthogonally cross-stacked crystalline architecture envisaged to offer a monomer-like optical behaviour was first reported in 1,7-dibromoperylene-3,4,9,10-tetracarboxylic tetrabutylester (PTE-Br2). The attempt to stitch molecules covalently in an orthogonal fashion to possess null excitonic character culminated in a spiro-conjugated perylenediimide dimer exhibiting a monomer-like spectroscopic signature. The computational and experimental efforts to map the emergent properties of the cross-stacked architecture are also discussed here. Using the null aggregates formed by the interference effects between CT-mediated and Coulombic couplings in the molecular array is another strategy for achieving monomer-like spectroscopic properties in molecular assemblies. Moreover, identifying supramolecular assemblies with precise angle-dependent properties can have implications in functional material design, and this review can provide insights into the uncharted realm of null exciton splitting.
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Affiliation(s)
- M P Lijina
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India.
| | - Alfy Benny
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India.
| | - Ebin Sebastian
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India.
| | - Mahesh Hariharan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India.
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4
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Somasundaran SM, Kompella SVK, Mohan T M N, Das S, Abdul Vahid A, Vijayan V, Balasubramanian S, Thomas KG. Structurally Induced Chirality of an Achiral Chromophore on Self-Assembled Nanofibers: A Twist Makes It Chiral. ACS NANO 2023. [PMID: 37220308 DOI: 10.1021/acsnano.3c03892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The surface domains of self-assembled amphiphiles are well-organized and can perform many physical, chemical, and biological functions. Here, we present the significance of chiral surface domains of these self-assemblies in transferring chirality to achiral chromophores. These aspects are probed using l- and d-isomers of alkyl alanine amphiphiles which self-assemble in water as nanofibers, possessing a negative surface charge. When bound on these nanofibers, positively charged cyanine dyes (CY524 and CY600), each having two quinoline rings bridged by conjugated double bonds, show contrasting chiroptical features. Interestingly, CY600 displays a bisignated circular dichroic (CD) signal with mirror-image symmetry, while CY524 is CD silent. Molecular dynamics simulations reveal that the model cylindrical micelles (CM) derived from the two isomers exhibit surface chirality and the chromophores are buried as monomers in mirror-imaged pockets on their surfaces. The monomeric nature of template-bound chromophores and their binding reversibility are established by concentration- and temperature-dependent spectroscopies and calorimetry. On the CM, CY524 displays two equally populated conformers with opposite sense, whereas CY600 is present as two pairs of twisted conformers in each of which one is in excess, due to differences in weak dye-amphiphile hydrogen bonding interactions. Infrared and NMR spectroscopies support these findings. Reduction of electronic conjugation caused by the twist establishes the two quinoline rings as independent entities. On-resonance coupling between the transition dipoles of these units generates bisignated CD signals with mirror-image symmetry. The results presented herein provide insight on the little-known structurally induced chirality of achiral chromophores through transfer of chiral surface information.
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Affiliation(s)
- Sanoop Mambully Somasundaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
| | - Srinath V K Kompella
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Nila Mohan T M
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
| | - Sudip Das
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Arshad Abdul Vahid
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
| | - Vinesh Vijayan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
| | - Sundaram Balasubramanian
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - K George Thomas
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
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5
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Rit T, Ghosh T, Bhowmik S, Patidar MK, Das AK. Dynamic Multicomponent Reactions-Directed Self-Assembled G-quadruplex Inherent Antibacterial Hydrogel. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6466-6475. [PMID: 37106320 DOI: 10.1021/acs.langmuir.3c00392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nowadays, inherent antibacterial hydrogels have gained significant attention due to their utilization against infectious bacteria. Herein, we focus on the development of an injectable, self-healable, dynamic, and G-quadruplex hydrogel with inherent antibacterial activity. The dynamic self-assembled hydrogel is constructed upon multicomponent reactions (MCR) among guanosine, 2-formylphenylboronic acid, and amino acid/peptides in the presence of potassium ions. The role of amino acid/peptides in the formation of the G-quadruplex hydrogel is studied in detail. The G-quadruplex structure is formed via the π-π stacking of G-quartets. The formation of G-quadruplex is investigated by thioflavin T binding assay, CD spectroscopy, and PXRD. The formation of the dynamic imino-boronate bond in the hydrogels is well characterized by temperature-dependent 11B NMR (VT-NMR) and FT-IR spectroscopy. Furthermore, HR-TEM images and rheological experiments reveal the fibrillar networks and viscoelastic property of the hydrogels. The presence of the dynamic imino-boronate ester bonds makes the hydrogel injectable and self-healable in nature. These dynamic G-quadruplex hydrogels show potential antibacterial activity against a series of Gram-positive and Gram-negative bacteria. The hydrogels have been used for the entrapment and sustained release of an anticancer drug doxorubicin over 48 h at different pHs (4.8, 7.4, and 8.5) and temperature without the influence of any external stimuli. Such injectable and self-healable hydrogels could be used in various applications in the field of biomedical science.
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Affiliation(s)
- Tanmay Rit
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
| | - Tapas Ghosh
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
| | - Sourav Bhowmik
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
| | - Mukesh K Patidar
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
- Department of Biosciences, Maharaja Ranjit Singh College of Professional Sciences, Indore 452001, India
| | - Apurba K Das
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
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6
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Fang Y, Yang Y, Xu R, Liang M, Mou Q, Chen S, Kim J, Jin LY, Lee M, Huang Z. Hierarchical porous photosensitizers with efficient photooxidation. Nat Commun 2023; 14:2503. [PMID: 37130853 PMCID: PMC10154327 DOI: 10.1038/s41467-023-38283-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 04/24/2023] [Indexed: 05/04/2023] Open
Abstract
Photosensitizers (PSs) with nano- or micro-sized pore provide a great promise in the conversion of light energy into chemical fuel due to the excellent promotion for transporting singlet oxygen (1O2) into active sites. Despite such hollow PSs can be achieved by introducing molecular-level PSs into porous skeleton, however, the catalytic efficiency is far away from imagination because of the problems with pore deformation and blocking. Here, very ordered porous PSs with excellent 1O2 generation are presented from cross-linking of hierarchical porous laminates originated by co-assembly of hydrogen donative PSs and functionalized acceptor. The catalytic performance strongly depends on the preformed porous architectures, which is regulated by special recognition of hydrogen binding. As the increasing of hydrogen acceptor quantities, 2D-organized PSs laminates gradually transform into uniformly perforated porous layers with highly dispersed molecular PSs. The premature termination by porous assembly endows superior activity as well as specific selectivity for the photo-oxidative degradation, which contributes to efficient purification in aryl-bromination without any postprocessing.
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Affiliation(s)
- Yajun Fang
- PCFM and LIFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P.R. China
| | - Yuntian Yang
- PCFM and LIFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P.R. China
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji, 133002, P.R. China
| | - Rui Xu
- PCFM and LIFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P.R. China
| | - Mingyun Liang
- PCFM and LIFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P.R. China
| | - Qi Mou
- PCFM and LIFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P.R. China
| | - Shuixia Chen
- PCFM and LIFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P.R. China
| | - Jehan Kim
- Pohang Accelerator Laboratory, Postech, Pohang, Gyeongbuk, Korea
| | - Long Yi Jin
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji, 133002, P.R. China
| | - Myongsoo Lee
- Department of Chemistry, Fudan University, Shanghai, 200438, P.R. China
| | - Zhegang Huang
- PCFM and LIFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P.R. China.
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji, 133002, P.R. China.
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7
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Zhang H, Chang X, Ma C, Huang G, Li BS, Tang BZ. Two Cholesterol-Containing Pyrene Derivatives: Subtle Spacer Difference, Diverse Stimuli-Responsive Luminescence, Chirality, and Self-Assembly Behaviors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:43926-43936. [PMID: 36103452 DOI: 10.1021/acsami.2c12224] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Two chiral molecules 1 and 2 were designed and synthesized with a pyrene moiety directly linked to a chiral cholesterol moiety and connected through a methylene spacer, respectively. Influence of the spacer on their stimuli-responsive luminescence, chirality, and self-assembly behaviors was systematically investigated. Molecules 1 and 2 had similar aggregation-induced emission enhancement (AIEE) in solution, because of carrying the same fluorescence moiety. Both molecules displayed mechanochromism (MC) property but with different color contrast, whereas only 2 showed mechanoluminescence (ML) activity. When doping in liquid crystal molecule 5CB, both molecules induced the formation of chiral nematic liquid crystals (N*-LCs) with strong circularly polarized luminescence (CPL). Molecule 2 induced single handedness signal, irrespective of doping ratios, while 1-doped N*-LCs showed an inversion of CPL signal from negative to positive upon the increase of doping ratios. Molecules 1 and 2 also self-assembled into different coassemblies with 5CB. Their distinct behaviors were attributed to the influence of the methylene spacer, which caused different molecular conformation and steric bulkiness; accordingly, it changed intermolecular interactions and molecular packing of the two molecules and led to diverse chirality and luminescence. This work provided important model molecules to better understand the molecular structure-property relationship and guide the design of novel functional molecules.
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Affiliation(s)
- Hongyan Zhang
- Key Laboratory of New Lithium-Ion Battery and Mesoporous Material, College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Avenue, Nanshan, Shenzhen 518055, China
| | - Xiaoyong Chang
- Department of Chemistry, Southern University of Science and Technology, 1088 Xueyuan Avenue, Nanshan, Shenzhen 518055, China
| | - Chaoyang Ma
- Key Laboratory of New Lithium-Ion Battery and Mesoporous Material, College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Avenue, Nanshan, Shenzhen 518055, China
| | - Guangxi Huang
- Key Laboratory of New Lithium-Ion Battery and Mesoporous Material, College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Avenue, Nanshan, Shenzhen 518055, China
| | - Bing Shi Li
- Key Laboratory of New Lithium-Ion Battery and Mesoporous Material, College of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Avenue, Nanshan, Shenzhen 518055, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen 518172, China
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8
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Suda N, Saito T, Arima H, Yagai S. Photo-modulation of supramolecular polymorphism in the self-assembly of a scissor-shaped azobenzene dyad into nanotoroids and fibers. Chem Sci 2022; 13:3249-3255. [PMID: 35414866 PMCID: PMC8926283 DOI: 10.1039/d2sc00690a] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 02/23/2022] [Indexed: 12/16/2022] Open
Abstract
Recent advances in the research field of supramolecularly engineered dye aggregates have enabled the design of simple one-dimensional stacks such as fibers and of closed structures such as nanotoroids (nanorings). More complex and advanced supramolecular systems could potentially be designed using a molecule that is able to provide either of these distinct nanostructures under different conditions. In this study, we introduced bulky but strongly aggregating cholesterol units to a scissor-shaped azobenzene dyad framework, which affords either nanotoroids, nanotubes, or 1D fibers, depending on the substituents. This new dyad with two trans-azobenzene arms shows supramolecular polymorphism in its temperature-controlled self-assembly, leading to not only oligomeric nanotoroids as kinetic products, but also to one-dimensional fibers as thermodynamic products. This supramolecular polymorphism can also be achieved via photo-triggered self-assembly, i.e., irradiation of a monomeric solution of the dyad with two cis-azobenzene arms using strong visible light leads to the preferential formation of nanotoroids, whereas irradiation with weak visible light leads to the predominant formation of 1D fibers. This is the first example of a successful light-induced modulation of supramolecular polymorphism to produce distinctly nanostructured aggregates under isothermal conditions.
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Affiliation(s)
- Natsuki Suda
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Takuho Saito
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Hironari Arima
- Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Shiki Yagai
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
- Institute for Global Prominent Research (IGPR), Chiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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9
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Sasikumar D, Vinod K, Sunny J, Hariharan M. Exciton interactions in helical crystals of a hydrogen-bonded eumelanin monomer. Chem Sci 2022; 13:2331-2338. [PMID: 35310511 PMCID: PMC8864807 DOI: 10.1039/d1sc06755a] [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: 12/03/2021] [Accepted: 01/19/2022] [Indexed: 12/04/2022] Open
Abstract
Eumelanin, a naturally occurring group of heterogeneous polymers/aggregates providing photoprotection to living organisms, consist of 5,6-dihydroxyindole (DHI) and 5,6-dihydroxyindole-2-carboxylic acid (DHICA) building blocks. Despite their prevalence in the animal world, the structure and therefore the mechanism behind the photoprotective broadband absorption and non-radiative decay of eumelanin remain largely unknown. As a small step towards solving the incessant mystery, DHI is crystallized in a non-protic solvent environment to obtain DHI crystals having a helical packing motif. The present approach reflects the solitary directional effect of hydrogen bonds between the DHI chromophores for generating the crystalline assembly and filters out any involvement of the surrounding solvent environment. The DHI single crystals having an atypical chiral packing motif (P212121 Sohncke space group) incorporate enantiomeric zig-zag helical stacks arranged in a herringbone fashion with respect to each other. Each of the zig-zag helical stacks originates from a bifurcated hydrogen bonding interaction between the hydroxyl substituents in adjacent DHI chromophores which act as the backbone structure for the helical assembly. Fragment-based excited state analysis performed on the DHI crystalline assembly demonstrates exciton delocalization along the DHI units that connect each enantiomeric helical stack while, within each stack, the excitons remain localized. Fascinatingly, over the time evolution for generation of single-crystals of the DHI-monomer, mesoscopic double-helical crystals are formed, possibly attributed to the presence of covalently connected DHI trimers in chloroform solution. The oligomeric DHI (in line with the chemical disorder model) along with the characteristic crystalline packing observed for DHI provides insights into the broadband absorption feature exhibited by the chromophore.
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Affiliation(s)
- Devika Sasikumar
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Maruthamala P.O., Vithura Thiruvananthapuram Kerala 695551 India
| | - Kavya Vinod
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Maruthamala P.O., Vithura Thiruvananthapuram Kerala 695551 India
| | - Jeswin Sunny
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Maruthamala P.O., Vithura Thiruvananthapuram Kerala 695551 India
| | - Mahesh Hariharan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Maruthamala P.O., Vithura Thiruvananthapuram Kerala 695551 India
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10
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Santiago-Sampedro GI, Aguilar-Granda A, Torres-Huerta A, Flores-Álamo M, Maldonado-Domínguez M, Rodríguez-Molina B, Iglesias-Arteaga MA. Self-Assembly of an Amphiphilic Bile Acid Dimer: A Combined Experimental and Theoretical Study of Its Medium-Responsive Fluorescence. J Org Chem 2022; 87:2255-2266. [PMID: 35166535 DOI: 10.1021/acs.joc.1c01334] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This work describes the synthesis and aggregation behavior of a dimeric bile acid derivative in which two steroid cores are bridged by a p-di(phenylethynyl)phenylene fluorophore. The studied compound contains three key characteristics: (a) restricted conformational equilibrium in solution, (b) efficient fluorescence conferred by the bridge, and (c) medium responsiveness encoded in the steroid fragments. The incorporation of the three components afforded a compound that generates nano- and micrometric spherical particles with aggregation-responsive fluorescence emission. The observed self-assembly process of the featured molecule was induced by the gradual addition of water to the tetrahydrofuran (THF) solution. This aggregation led to significant changes in fluorescence that went from two bands at λem values of 370 and 390 nm in pure THF to a new spectrum with two maxima at λem values of 395 and 418 nm at high water contents, without a decrease in emission. The observed changes can be ascribed to weakly coupled aggregation, a hypothesis supported by multiscale molecular modeling, which sheds light on the mechanism of the self-assembly of this unconventional amphiphile.
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Affiliation(s)
- Gerardo I Santiago-Sampedro
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Andrés Aguilar-Granda
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Aaron Torres-Huerta
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Marcos Flores-Álamo
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Mauricio Maldonado-Domínguez
- J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | - Braulio Rodríguez-Molina
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Martín A Iglesias-Arteaga
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Ciudad de México, Mexico
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11
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Wu B, Wu H, Zhou Y, Zheng D, Jia X, Fang L, Zhu L. Controlling Ultra-Large Optical Asymmetry in Amorphous Molecular Aggregations. Angew Chem Int Ed Engl 2021; 60:3672-3678. [PMID: 33119201 DOI: 10.1002/anie.202012224] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/19/2020] [Indexed: 11/10/2022]
Abstract
Although ultra-large optical asymmetry appears in crystalline materials, distractions from the mesoscopic ordering often causes inauthenticity in chiropticity. In amorphous materials, however, it remains challenging and elusive to achieve large chiropticity. Herein, we report the quantitative control of chiral amplification, on amorphous supramolecular structures of cholesteryl-linked bis(dipyrrinato)zinc(II), to an exceptionally high level. A proper chiral packing of the building block at several molecular scale considerably contributes to the absorptive dissymmetry factor gabs , although the system is overall disordered. The intense and tunable aggregation strength renders a variable gabs value up to +0.10 and +0.31 in the solution and in film state. On this basis, a superior ON-OFF switching of chiropticity is realized under external stimuli. This work establishes a general design principle to control over ultra-large optical asymmetry on a wider scope of chiral materials.
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Affiliation(s)
- Bin Wu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Hongwei Wu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Yunyun Zhou
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Dongxiao Zheng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Xiaoyong Jia
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, China
| | - Lei Fang
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843, USA
| | - Liangliang Zhu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
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12
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Qin M, Zhang Y, Xing C, Yang L, Zhao C, Dou X, Feng C. Effect of Stereochemistry on Chirality and Gelation Properties of Supramolecular Self-Assemblies. Chemistry 2021; 27:3119-3129. [PMID: 33225542 DOI: 10.1002/chem.202004533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Indexed: 01/01/2023]
Abstract
Although chiral nanostructures have been fabricated at various structural levels, the transfer and amplification of chirality from molecules to supramolecular self-assemblies are still puzzling, especially for heterochiral molecules. Herein, four series of C2 -symmetrical dipeptide-based derivatives bearing various amino acid sequences and different chiralities are designed and synthesized. The transcription and amplification of molecular chirality to supramolecular assemblies are achieved. The results show that supramolecular chirality is only determined by the amino acid adjacent to the benzene core, irrespective of the absolute configuration of the C-terminal amino acid. In addition, molecular chirality also has a significant influence on the gelation behavior. For the diphenylalanine-based gelators, the homochiral gelators can be gelled through a conventional heating-cooling process, whereas heterochiral gelators form translucent stable gels under sonication. The racemic gels possess higher mechanical properties than those of the pure enantiomers. All of these results contribute to an increasing knowledge over control of the generation of specific chiral supramolecular structures and the development of new optimized strategies to achieve functional supramolecular organogels through heterochiral and racemic systems.
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Affiliation(s)
- Minggao Qin
- State Key Lab of Metal Matrix Composites, School of, Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
| | - Yaqian Zhang
- State Key Lab of Metal Matrix Composites, School of, Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
| | - Chao Xing
- State Key Lab of Metal Matrix Composites, School of, Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
| | - Li Yang
- State Key Lab of Metal Matrix Composites, School of, Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
| | - Changli Zhao
- State Key Lab of Metal Matrix Composites, School of, Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
| | - Xiaoqiu Dou
- State Key Lab of Metal Matrix Composites, School of, Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
| | - Chuanliang Feng
- State Key Lab of Metal Matrix Composites, School of, Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China
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13
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Chandrasekharan SV, Krishnan N, Atchimnaidu S, Raj G, P. K. AK, Sagar S, Das S, Varghese R. Blue-emissive two-component supergelator with aggregation-induced enhanced emission. RSC Adv 2021; 11:19856-19863. [PMID: 35479242 PMCID: PMC9033671 DOI: 10.1039/d1ra03751j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 05/28/2021] [Indexed: 11/21/2022] Open
Abstract
Two-component organogels offer several advantages over one-component gels, but their design is highly challenging. Hence, it is extremely important to design new approaches for the crafting of two-component organogels with interesting optical and mechanical properties. Herein, we report the design of a new class of two-component supergelators obtained from the assembly between acid functionalized tetraphenylethylene (TPE)-based dendrons and alkylated melamine. No gelation behaviour is observed for the individual components, but interestingly, remarkable gelation behaviour is observed for their hydrogen-bonded complex. The primary driving force responsible for the gelation is the strong π–π stacking interaction of TPE units. Because of the strong π-stacking of TPEs in the gel state, the C(sp2)–C(sp2) bond rotation of the TPE segment is completely arrested in the gel state, which results in intense fluorescence emission of the gels. Furthermore, excellent elastic response is observed for the gels as evident from their high storage modulus compared to loss modulus values. Our results clearly demonstrate that by the appropriate selection of the molecular components, this approach can be applied for the creation of functional nanomaterials with emergent properties absent in the individual blocks. Design of a novel class of two-component, highly emissive, low molecular weight supergelator is reported.![]()
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Affiliation(s)
| | - Nithiyanandan Krishnan
- School of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Thiruvananthapuram
- India
| | - Siriki Atchimnaidu
- School of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Thiruvananthapuram
- India
| | - Gowtham Raj
- School of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Thiruvananthapuram
- India
| | - Anusree Krishna P. K.
- School of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Thiruvananthapuram
- India
| | - Soumya Sagar
- School of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Thiruvananthapuram
- India
| | - Suresh Das
- School of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Thiruvananthapuram
- India
| | - Reji Varghese
- School of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Thiruvananthapuram
- India
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14
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Guest induced morphology transitions of star shaped pillar[5]arene trimer via endo host-guest and “exo-wall” electron-transfer interactions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.03.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Ghorai S, Bag BG. First Vesicular Self‐assembly of a Trihydroxy‐Diterpenoid Andrographolide in Aqueous Medium: Entrapment and Release of Fluorophore and Anti‐Cancer Drug Doxorubicin. ChemistrySelect 2020. [DOI: 10.1002/slct.202003248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Subrata Ghorai
- Department of Chemistry and Chemical Technology Vidyasagar University Midnapore 721102 West Bengal India
| | - Braja Gopal Bag
- Department of Chemistry and Chemical Technology Vidyasagar University Midnapore 721102 West Bengal India
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16
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Wu B, Wu H, Zhou Y, Zheng D, Jia X, Fang L, Zhu L. Controlling Ultra‐Large Optical Asymmetry in Amorphous Molecular Aggregations. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012224] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bin Wu
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Hongwei Wu
- College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
| | - Yunyun Zhou
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Dongxiao Zheng
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Xiaoyong Jia
- Henan Key Laboratory of Photovoltaic Materials Henan University Kaifeng 475004 China
| | - Lei Fang
- Department of Chemistry Texas A&M University 3255 TAMU College Station TX 77843 USA
| | - Liangliang Zhu
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
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17
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Qin M, Li Y, Zhang Y, Xing C, Zhao C, Dou X, Zhang Z, Feng C. Solvent-Controlled Topological Evolution from Nanospheres to Superhelices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2004756. [PMID: 33136317 DOI: 10.1002/smll.202004756] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/17/2020] [Indexed: 06/11/2023]
Abstract
Supramolecular assemblies with diverse morphologies are crucial in determining their biochemical or physical properties. However, the topological evolution and self-assembly intermediates as well as the mechanism remain elusive. Herein, a dynamic morphological evolution from solid nanospheres to superhelical nanofibers is revealed via self-assembly of a minimal l-tryptophan-based derivative (LPWM) with various mixed solvent combinations, including the formation of solid nanospheres, the fusion of nanospheres into pearling necklace, the disintegration of necklace into short nanofibers, the distortion of nanofibers into nanotwists, and the entanglement of nanotwists into superhelices. It is found that the breakage of intramolecular H-bonds and reconstruction of intermolecular H-bonds, as well as the variation of aromatic interactions and hydrophobic effects, are the key driving forces for topological transformation, especially the dimensional evolution. The nanospheres and nanofibers demonstrate discrepant behaviors towards mouse neural stem cell (NSC) differentiation that compared with negligible impact of nanospheres scaffold, the nanofibers scaffold is favorable for NSC differentiation into neurons. The remarkable dynamic regulation of assembly process, together with the NSC differentiation on twisted nanofibers are making this system an ideal model to interpret complex proteins fibrillation processes and investigate the structure-function relationship.
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Affiliation(s)
- Minggao Qin
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yongfang Li
- Department of Neurology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Yaqian Zhang
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Chao Xing
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Changli Zhao
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiaoqiu Dou
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhijun Zhang
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Chuanliang Feng
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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18
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Lijina MP, Benny A, Ramakrishnan R, Nair NG, Hariharan M. Exciton Isolation in Cross-Pentacene Architecture. J Am Chem Soc 2020; 142:17393-17402. [DOI: 10.1021/jacs.0c06016] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- M. P. Lijina
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Alfy Benny
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Remya Ramakrishnan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Nanditha G. Nair
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Mahesh Hariharan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
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19
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Yamauchi M, Fujiwara Y, Masuo S. Slow Anion-Exchange Reaction of Cesium Lead Halide Perovskite Nanocrystals in Supramolecular Gel Networks. ACS OMEGA 2020; 5:14370-14375. [PMID: 32596574 PMCID: PMC7315416 DOI: 10.1021/acsomega.0c00880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
Cesium lead halide perovskite nanocrystals are widely studied as among the most attractive emissive nanomaterials because of their high photoluminescence quantum yield and tunable emission wavelengths over the whole visible-light region by the halide ion-exchange reaction. However, the reactions were often observed in solution and generally very fast, which interferes with the fine-tuning capability of the emission properties. Here, we report a novel nanocrystal-organogel hybrid soft material in which the perovskite nanocrystals in a supramolecular gel exhibit extremely slow and inhomogeneous anion-exchange reactions that are different from those in solution. Furthermore, the inhomogeneous emission in the gel became homogeneous over several days due to a slow diffusion.
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20
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Camerel F, Fourmigué M. (Photo)Thermal Stimulation of Functional Dithiolene Complexes in Soft Matter. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Franck Camerel
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 Campus de Beaulieu 35042 Rennes France
| | - Marc Fourmigué
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226 Campus de Beaulieu 35042 Rennes France
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21
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22
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Dorca Y, Matern J, Fernández G, Sánchez L. C
3
‐Symmetrical π‐Scaffolds: Useful Building Blocks to Construct Helical Supramolecular Polymers. Isr J Chem 2019. [DOI: 10.1002/ijch.201900017] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yeray Dorca
- Departamento de Química OrgánicaFacultad de Ciencias QuímicasUniversidad Complutense de Madrid 28040 Madrid Spain
| | - Jonas Matern
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Gustavo Fernández
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Luis Sánchez
- Departamento de Química OrgánicaFacultad de Ciencias QuímicasUniversidad Complutense de Madrid 28040 Madrid Spain
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23
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Shimasaki T, Ohno Y, Tanaka M, Amano M, Sasaki Y, Shibata H, Watanabe M, Teramoto N, Shibata M. Synthesis of Perfluoroalkyl Gelators and Their Selective Gelation Ability for Fluorinated Solvents. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Toshiaki Shimasaki
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
| | - Yuki Ohno
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
| | - Mao Tanaka
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
| | - Masato Amano
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
| | - Yuta Sasaki
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
| | - Hirobumi Shibata
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
| | - Motonori Watanabe
- International Institute for Carbon-Neutral Energy Research (I2CNER), Molecular Photoconversion Devices Division, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Naozumi Teramoto
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
| | - Mitsuhiro Shibata
- Department of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, Narashino, Chiba 275-0016, Japan
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24
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Yang HK, Wang XM, Liu LL, Shi HX. Design and gelation behaviors of cholesterol-based derivatives as organogelators: an investigation of the correlation between molecular structures and gelation behaviors. NEW J CHEM 2019. [DOI: 10.1039/c8nj02899k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The carboxylic group and the number of cholesteryl moieties have an important influence on gelation behaviors.
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Affiliation(s)
- Hai-Kuan Yang
- Department of Chemistry
- School of Science
- North University of China
- Taiyuan 030051
- P. R. China
| | - Xiao-Min Wang
- Department of Chemistry
- School of Science
- North University of China
- Taiyuan 030051
- P. R. China
| | - Ling-Ling Liu
- Department of Chemistry
- School of Science
- North University of China
- Taiyuan 030051
- P. R. China
| | - Han-Xu Shi
- Department of Chemistry
- School of Science
- North University of China
- Taiyuan 030051
- P. R. China
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25
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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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26
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Bag BG, Garai C, Ghorai S. Vesicular self-assembly of a natural ursane-type dihydroxy-triterpenoid corosolic acid. RSC Adv 2019; 9:15190-15195. [PMID: 35514858 PMCID: PMC9064250 DOI: 10.1039/c9ra02801c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023] Open
Abstract
Corosolic acid, a natural ursane-type 6-6-6-6-6 pentacyclic dihydroxy triterpenic acid, is a well known antidiabetic compound extractable from leaves of Psidium guajava. In this manuscript we have reported the self-assembly properties of corosolic acid in different liquids. The compound undergoes self-assembly to give vesicular morphology in different aqueous organic liquids. Supramolecular gels were also obtained in some aqueous binary liquids such as ethanol–water and dimethyl formamide–water. The morphology of the self-assemblies of corosolic acid were characterized by using different microscopic techniques like optical microscopy, field emission scanning electron microscopy, transmission electron microscopy, atomic force microscopy as well as XRD and FTIR studies. We also demonstrated the application of vesicular self-assemblies for the entrapment and release of fluorophores including an anticancer drug. Corosolic acid, a natural ursane-type 6-6-6-6-6 pentacyclic dihydroxy triterpenic acid, self-assembled in binary liquid mixtures yielding vesicles.![]()
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Affiliation(s)
- Braja G. Bag
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Chhabi Garai
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Subrata Ghorai
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
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27
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Biswas A, Maiti S, Kalaskar DM, Das AK. Redox-Active Dynamic Self-Supporting Thixotropic 3D-Printable G-Quadruplex Hydrogels. Chem Asian J 2018; 13:3928-3934. [DOI: 10.1002/asia.201801409] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/15/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Ankan Biswas
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Sayan Maiti
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Deepak M. Kalaskar
- Institute of Orthopaedics & Musculoskeletal Science, Division of Surgery and Intervention Science; Royal National Orthopaedic Hospital; University College London; Brockely Hill Stanmore, Middlesex HA7 4LP UK
| | - Apurba K. Das
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
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28
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Sebastian E, Philip AM, Benny A, Hariharan M. Null Exciton Splitting in Chromophoric Greek Cross (+) Aggregate. Angew Chem Int Ed Engl 2018; 57:15696-15701. [PMID: 30338635 DOI: 10.1002/anie.201810209] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Indexed: 12/29/2022]
Abstract
Exciton interactions in molecular aggregates play a crucial role in tailoring the optical behaviour of π-conjugated materials. Though vital for optoelectronic applications, ideal Greek cross-dipole (α=90°) stacking of chromophores remains elusive. We report a novel Greek cross (+) assembly of 1,7-dibromoperylene-3,4,9,10-tetracarboxylic tetrabutylester (PTE-Br2 ) which exhibits null exciton coupling mediated monomer-like optical characteristics in the crystalline state. In contrast, nonzero exciton coupling in X-type (α=70.2°, PTE-Br0 ) and J-type (α=0°, θ=48.4°, PTE-Br4 ) assemblies have perturbed optical properties. Additionally, the semi-classical Marcus theory of charge-transfer rates predicts a selective hole transport phenomenon in the orthogonally stacked PTE-Br2 . Precise rotation angle dependent optoelectronic properties in crystalline PTE-Br2 can have consequences in the rational design of novel π-conjugated materials for photonic and molecular electronic applications.
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Affiliation(s)
- Ebin Sebastian
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM), Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India
| | - Abbey M Philip
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM), Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India
| | - Alfy Benny
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM), Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India
| | - Mahesh Hariharan
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM), Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India
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29
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Sebastian E, Philip AM, Benny A, Hariharan M. Null Exciton Splitting in Chromophoric Greek Cross (+) Aggregate. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810209] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ebin Sebastian
- School of Chemistry; Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM); Maruthamala P. O., Vithura Thiruvananthapuram Kerala 695551 India
| | - Abbey M. Philip
- School of Chemistry; Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM); Maruthamala P. O., Vithura Thiruvananthapuram Kerala 695551 India
| | - Alfy Benny
- School of Chemistry; Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM); Maruthamala P. O., Vithura Thiruvananthapuram Kerala 695551 India
| | - Mahesh Hariharan
- School of Chemistry; Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM); Maruthamala P. O., Vithura Thiruvananthapuram Kerala 695551 India
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30
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Wang F, Qin M, Peng T, Tang X, Yinme Dang-I A, Feng C. Modulating Supramolecular Chirality in Alanine Derived Assemblies by Multiple External Stimuli. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7869-7876. [PMID: 29884020 DOI: 10.1021/acs.langmuir.8b00921] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Having control over the supramolecular chirality through multiexternal stimulators provides many possibilities in realizing functional chiral materials. Herein, the supramolecular chirality of nanotwists comprising PA centered with 1,4-phenyldicarboxamide bearing two l/d-helicogenic alanine motifs and achiral COOH at each terminus of the alanine arms is modulated by solvent, temperature, and ultrasound. The modulations are mainly due to the hydrogen bonds among gelators and solvent-gelator interactions, resulting in changes of the molecular arrangement and subsequent self-assembled nanostructures. Typically, the gel of PA in ethyl acetate prepared by ultrasonication method exhibits thixotropic property due to the participation of ethyl acetate in the self-assembly process, resulting in relatively flexible and tolerant networks. This study provides a simplistic way to control the handedness of chiral nanostructures and a rational design of the self-assembly system with multistimuli-responsive supramolecular chirality.
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31
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Wang F, Feng CL. Metal-Ion-Mediated Supramolecular Chirality of l
-Phenylalanine Based Hydrogels. Angew Chem Int Ed Engl 2018; 57:5655-5659. [DOI: 10.1002/anie.201800251] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/19/2018] [Indexed: 02/03/2023]
Affiliation(s)
- Fang Wang
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Chuan-Liang Feng
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
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32
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Wang F, Feng CL. Metal-Ion-Mediated Supramolecular Chirality of l
-Phenylalanine Based Hydrogels. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800251] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fang Wang
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Chuan-Liang Feng
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
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33
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Wang F, Feng CL. Stoichiometry-Controlled Inversion of Supramolecular Chirality in Nanostructures Co-assembled with Bipyridines. Chemistry 2018; 24:1509-1513. [DOI: 10.1002/chem.201704431] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Fang Wang
- State Key Laboratory of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 P. R. China
| | - Chuan-Liang Feng
- State Key Laboratory of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 P. R. China
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34
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Konda M, Maiti S, Jadhav RG, Das AK. Redox-Active Peptide-Functionalized Quinquethiophene-Based Electrochromic π-Gel. Chem Asian J 2018; 13:204-209. [PMID: 29266836 DOI: 10.1002/asia.201701460] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/22/2017] [Indexed: 12/13/2022]
Abstract
An electrochromic system based on a self-assembled dipeptide-appended redox-active quinquethiophene π-gel is reported. The designed peptide-quinquethiophene consists of a symmetric bolaamphiphile that has two segments: a redox-active π-conjugated quinquethiophene core for electrochromism, and peptide motif for the involvement of molecular self-assembly. Investigations reveal that self-assembly and electrochromic properties of the π-gel are strongly dependent on the relative orientation of peptidic and quinquethiophene scaffolds in the self-assembly system. The colors of the π-gel film are very stable with fast and controlled switching speed at room temperature.
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Affiliation(s)
- Maruthi Konda
- Department of Chemistry, Indian Institute of Technology Indore, Indore, India
| | - Sayan Maiti
- Department of Chemistry, Indian Institute of Technology Indore, Indore, India
| | - Rohit G Jadhav
- Department of Chemistry, Indian Institute of Technology Indore, Indore, India
| | - Apurba K Das
- Department of Chemistry, Indian Institute of Technology Indore, Indore, India
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35
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Li Y, Zhu J, Cui M, Yan J. Controlled synthesis of novel one-dimensional structured ZIFs via supramolecular self-assemblies. CrystEngComm 2018. [DOI: 10.1039/c8ce00427g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various 1D ZIF-8 nanomaterials have been synthesized via the self-templates of supramolecular self-assemblies, which exhibit hierarchical pores and high surface area. The resultant microstructures could be applied as excellent drug delivery vehicles and also as excellent carriers for enzymes with remarkable enzymatic activity.
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Affiliation(s)
- Yali Li
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Ministry of Education)
- Anhui University of Technology
- Maanshan
- China
| | - Jianhua Zhu
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Ministry of Education)
- Anhui University of Technology
- Maanshan
- China
| | - Mingfang Cui
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Ministry of Education)
- Anhui University of Technology
- Maanshan
- China
| | - Jufen Yan
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Ministry of Education)
- Anhui University of Technology
- Maanshan
- China
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36
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Lee H, Hong KI, Jang WD. Design and applications of molecular probes containing porphyrin derivatives. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.06.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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37
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Liu M, Ouyang G, Niu D, Sang Y. Supramolecular gelatons: towards the design of molecular gels. Org Chem Front 2018. [DOI: 10.1039/c8qo00620b] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The concept of supramolecular gelatons for the design of gels was proposed and described.
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Affiliation(s)
- Minghua Liu
- Beijing National Laboratory for Molecular Science
- CAS Key Laboratory of Colloid
- Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Guanghui Ouyang
- Beijing National Laboratory for Molecular Science
- CAS Key Laboratory of Colloid
- Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Dian Niu
- Beijing National Laboratory for Molecular Science
- CAS Key Laboratory of Colloid
- Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Yutao Sang
- Beijing National Laboratory for Molecular Science
- CAS Key Laboratory of Colloid
- Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
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38
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Cao X, Ding Q, Gao A, Li Y, Chang X, Wu Y. A supramolecular self-assembly material based on a quinoline derivative and its sensitive response toward volatile acid and organic amine vapors. NEW J CHEM 2018. [DOI: 10.1039/c8nj00753e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A new gelator 1, containing a quinoline group, was designed, synthesized, and fully characterized.
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Affiliation(s)
- Xinhua Cao
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Qianqian Ding
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Aiping Gao
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Yiran Li
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Xueping Chang
- College of Chemistry and Chemical Engineering & Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains
- Xinyang Normal University
- Xinyang 464000
- China
| | - Yongquan Wu
- School of Chemistry and Chemical Engineering
- Gannan Normal University
- Ganzhou
- P. R. China
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39
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Affiliation(s)
- Ankita Mitra
- Sweet Lab; Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur; Nadia 741246 India
| | - Vikramjit Sarkar
- Sweet Lab; Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur; Nadia 741246 India
| | - Balaram Mukhopadhyay
- Sweet Lab; Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur; Nadia 741246 India
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40
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Hifsudheen M, Mishra RK, Vedhanarayanan B, Praveen VK, Ajayaghosh A. The Helix to Super‐Helix Transition in the Self‐Assembly of π‐Systems: Superseding of Molecular Chirality at Hierarchical Level. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707392] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mohamed Hifsudheen
- Photosciences and Photonics Section Chemical Science and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus Thiruvananthapuram 695019 India
| | - Rakesh K. Mishra
- Photosciences and Photonics Section Chemical Science and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
| | - Balaraman Vedhanarayanan
- Photosciences and Photonics Section Chemical Science and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus Thiruvananthapuram 695019 India
| | - Vakayil K. Praveen
- Photosciences and Photonics Section Chemical Science and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus Thiruvananthapuram 695019 India
| | - Ayyapanpillai Ajayaghosh
- Photosciences and Photonics Section Chemical Science and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus Thiruvananthapuram 695019 India
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41
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Hifsudheen M, Mishra RK, Vedhanarayanan B, Praveen VK, Ajayaghosh A. The Helix to Super-Helix Transition in the Self-Assembly of π-Systems: Superseding of Molecular Chirality at Hierarchical Level. Angew Chem Int Ed Engl 2017; 56:12634-12638. [PMID: 28799691 DOI: 10.1002/anie.201707392] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Indexed: 01/16/2023]
Abstract
Higher-order super-helical structures derived from biological molecules are known to evolve through opposite coiling of the initial helical fibers, as seen in collagen protein. A similar phenomenon is observed in a π-system self-assembly of chiral oligo(phenyleneethylene) derivatives (S)-1 and (R)-1 that explains the unequal formation of both left- and right-handed helices from molecule having a specific chiral center. Concentration- and temperature-dependent circular dichroism (CD) and UV/Vis spectroscopic studies revealed that the initial formation of helical aggregates is in accordance with the molecular chirality. At the next level of hierarchical self-assembly, coiling of the fibers occurs with opposite handedness, thereby superseding the command of the molecular chirality. This was confirmed by solvent-dependent decoiling of super-helical structures and concentration-dependent morphological analysis.
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Affiliation(s)
- Mohamed Hifsudheen
- Photosciences and Photonics Section, Chemical Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Thiruvananthapuram, 695019, India
| | - Rakesh K Mishra
- Photosciences and Photonics Section, Chemical Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India
| | - Balaraman Vedhanarayanan
- Photosciences and Photonics Section, Chemical Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Thiruvananthapuram, 695019, India
| | - Vakayil K Praveen
- Photosciences and Photonics Section, Chemical Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Thiruvananthapuram, 695019, India
| | - Ayyapanpillai Ajayaghosh
- Photosciences and Photonics Section, Chemical Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Thiruvananthapuram, 695019, India
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42
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Lin Y, Pashuck ET, Thomas MR, Amdursky N, Wang ST, Chow LW, Stevens MM. Plasmonic Chirality Imprinting on Nucleobase-Displaying Supramolecular Nanohelices by Metal-Nucleobase Recognition. Angew Chem Int Ed Engl 2017; 56:2361-2365. [PMID: 28102964 PMCID: PMC5396806 DOI: 10.1002/anie.201610976] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Indexed: 11/09/2022]
Abstract
Supramolecular self-assembly is an important process that enables the conception of complex structures mimicking biological motifs. Herein, we constructed helical fibrils through chiral self-assembly of nucleobase-peptide conjugates (NPCs), where achiral nucleobases are helically displayed on the surface of fibrils, comparable to polymerized nucleic acids. Selective binding between DNA and the NPC fibrils was observed with fluorescence polarization. Taking advantage of metal-nucleobase recognition, we highlight the possibility of deposition/assembly of plasmonic nanoparticles onto the fibrillar constructs. In this approach, the supramolecular chirality of NPCs can be adaptively imparted to metallic nanoparticles, covering them to generate structures with plasmonic chirality that exhibit significantly improved colloidal stability. The self-assembly of rationally designed NPCs into nanohelices is a promising way to engineer complex, optically diverse nucleobase-derived nanomaterials.
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Affiliation(s)
- Yiyang Lin
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, SW72AZ, London, UK
| | - E. Thomas Pashuck
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, SW72AZ, London, UK
| | - Michael R. Thomas
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, SW72AZ, London, UK
| | - Nadav Amdursky
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, SW72AZ, London, UK
| | - Shih-Ting Wang
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, SW72AZ, London, UK
| | - Lesley W. Chow
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, SW72AZ, London, UK
| | - Molly M. Stevens
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, SW72AZ, London, UK
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43
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Plasmonic Chirality Imprinting on Nucleobase-Displaying Supramolecular Nanohelices by Metal-Nucleobase Recognition. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610976] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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Lettieri R, Cardová L, Gatto E, Mazzuca C, Monti D, Palleschi A, Placidi E, Drašar P, Venanzi M. Hierarchical transfer of chiral information from the molecular to the mesoscopic scale by Langmuir–Blodgett deposition of tetrasteroid-porphyrins. NEW J CHEM 2017. [DOI: 10.1039/c6nj02947g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Transfer of chiral information from the molecular level to the mesoscale has been obtained by hierarchical self-assembly of tetrasteroid-porphyrins.
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Affiliation(s)
- Raffaella Lettieri
- Department of Chemical Sciences and Technologies
- University of Rome Tor Vergata
- 00133 Rome
- Italy
| | - Lenka Cardová
- University of Chemistry and Technology
- Czech Republic
| | - Emanuela Gatto
- Department of Chemical Sciences and Technologies
- University of Rome Tor Vergata
- 00133 Rome
- Italy
| | - Claudia Mazzuca
- Department of Chemical Sciences and Technologies
- University of Rome Tor Vergata
- 00133 Rome
- Italy
| | - Donato Monti
- Department of Chemical Sciences and Technologies
- University of Rome Tor Vergata
- 00133 Rome
- Italy
| | - Antonio Palleschi
- Department of Chemical Sciences and Technologies
- University of Rome Tor Vergata
- 00133 Rome
- Italy
| | - Ernesto Placidi
- CNR-ISM Unit
- Department of Physics
- University of Rome ‘Tor Vergata’
- 00133 Rome
- Italy
| | - Pavel Drašar
- University of Chemistry and Technology
- Czech Republic
| | - Mariano Venanzi
- Department of Chemical Sciences and Technologies
- University of Rome Tor Vergata
- 00133 Rome
- Italy
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45
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Lee DC, Jeong Y, Brownell LV, Velasco JE, Robins KA, Lee Y. Theory guided systematic molecular design of benzothiadiazole–phenazine based self-assembling electron-acceptors. RSC Adv 2017. [DOI: 10.1039/c7ra03612d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A systematic theory-guided molecular design of electron acceptors to reveal the impact of each structural subunit on the electronic properties.
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Affiliation(s)
- Dong-Chan Lee
- Department of Chemistry and Biochemistry
- University of Nevada Las Vegas
- Las Vegas
- USA
| | - Youngjun Jeong
- Department of Energy Systems Engineering
- Daegu Gyeongbuk Institute of Science & Technology (DGIST)
- Daegu
- Republic of Korea
| | - Lacie V. Brownell
- Department of Chemistry and Biochemistry
- University of Nevada Las Vegas
- Las Vegas
- USA
| | - John E. Velasco
- Department of Chemistry and Biochemistry
- University of Nevada Las Vegas
- Las Vegas
- USA
| | - Kathleen A. Robins
- Department of Chemistry and Biochemistry
- University of Nevada Las Vegas
- Las Vegas
- USA
| | - Youngu Lee
- Department of Energy Systems Engineering
- Daegu Gyeongbuk Institute of Science & Technology (DGIST)
- Daegu
- Republic of Korea
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46
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Mandal D, Choudhury P, Sarkar D, Das PK. Dissipation of self-assemblies by fusion of complementary gels: an elegant strategy for programmed enzymatic reactions. Chem Commun (Camb) 2017; 53:7844-7847. [DOI: 10.1039/c7cc04269h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cholesterol based phenylboronic acid and glucose tailored complementary gels underwent mutual self-destruction upon mixing, which was employed in a programmed enzymatic reaction.
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Affiliation(s)
- Deep Mandal
- Department of Biological Chemistry
- Indian Association for the Cultivation of Science
- Kolkata – 700 032
- India
| | - Pritam Choudhury
- Department of Biological Chemistry
- Indian Association for the Cultivation of Science
- Kolkata – 700 032
- India
| | - Deblina Sarkar
- Department of Biological Chemistry
- Indian Association for the Cultivation of Science
- Kolkata – 700 032
- India
| | - Prasanta Kumar Das
- Department of Biological Chemistry
- Indian Association for the Cultivation of Science
- Kolkata – 700 032
- India
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47
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Yashima E, Ousaka N, Taura D, Shimomura K, Ikai T, Maeda K. Supramolecular Helical Systems: Helical Assemblies of Small Molecules, Foldamers, and Polymers with Chiral Amplification and Their Functions. Chem Rev 2016; 116:13752-13990. [PMID: 27754649 DOI: 10.1021/acs.chemrev.6b00354] [Citation(s) in RCA: 1230] [Impact Index Per Article: 153.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In this review, we describe the recent advances in supramolecular helical assemblies formed from chiral and achiral small molecules, oligomers (foldamers), and helical and nonhelical polymers from the viewpoints of their formations with unique chiral phenomena, such as amplification of chirality during the dynamic helically assembled processes, properties, and specific functionalities, some of which have not been observed in or achieved by biological systems. In addition, a brief historical overview of the helical assemblies of small molecules and remarkable progress in the synthesis of single-stranded and multistranded helical foldamers and polymers, their properties, structures, and functions, mainly since 2009, will also be described.
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Affiliation(s)
- Eiji Yashima
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Naoki Ousaka
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Daisuke Taura
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Kouhei Shimomura
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Tomoyuki Ikai
- Graduate School of Natural Science and Technology, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
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48
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Thelu HVP, Albert SK, Golla M, Krishnan N, Yamijala SB, Nair SV, Srinivasula SM, Varghese R. DNA-Decorated Luminescent Vesicles as Drug Carriers. ChemistrySelect 2016. [DOI: 10.1002/slct.201600897] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Hari Veera Prasad Thelu
- School of Chemistry; Indian Institute of Science Education and Research-Thiruvananthapuram (IISER-TVM); CET campus Trivandrum- 695016 India
| | - Shine K. Albert
- School of Chemistry; Indian Institute of Science Education and Research-Thiruvananthapuram (IISER-TVM); CET campus Trivandrum- 695016 India
| | - Murali Golla
- School of Chemistry; Indian Institute of Science Education and Research-Thiruvananthapuram (IISER-TVM); CET campus Trivandrum- 695016 India
| | - Nithiyanandan Krishnan
- School of Chemistry; Indian Institute of Science Education and Research-Thiruvananthapuram (IISER-TVM); CET campus Trivandrum- 695016 India
| | | | | | | | - Reji Varghese
- School of Chemistry; Indian Institute of Science Education and Research-Thiruvananthapuram (IISER-TVM); CET campus Trivandrum- 695016 India
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49
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Mandal D, Dinda S, Choudhury P, Das PK. Solvent Induced Morphological Evolution of Cholesterol Based Glucose Tailored Amphiphiles: Transformation from Vesicles to Nanoribbons. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9780-9789. [PMID: 27575950 DOI: 10.1021/acs.langmuir.6b02165] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Supramolecular self-assembly of low molecular mass amphiphiles is of topical interest with the urge to achieve precise control over the formation of various self-aggregated structures. Particularly, fabrication of multifarious nanostructures from single molecular backbone would be highly advantageous for task specific applications of the self-aggregates. To this end, the present study reports the solvent triggered evolution of hierarchical self-assembled structures of cholesterol based glucose appended amphiphiles and the pathway of structural transition. The amphiphiles formed bilayered vesicles in water and gels in different organic solvents. In DMSO-water solvent mixture, it showed gradual transition in the morphology of self-aggregates from vesicle-to-fiber and intermediate morphologies depending on the solvent compositions. Microscopic and spectroscopic investigations showed that morphological transformation took place through fusion, elongation and twisting of self-aggregates owing to the reorganization of the amphiphiles (H-type to J-type) in varied solvent polarity. Moreover, sheetlike molecular organization originating from hydrogen bonding and solvophobic interaction played a vital role in the formation of nanoribbons that led to the formation of gel fibril network. This study endows a new strategy to develop solvent induced multistructured self-aggregates from a single molecular scaffold, unraveling the route of forming hierarchical self-assembly.
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Affiliation(s)
- Deep Mandal
- Department of Biological Chemistry, Indian Association for the Cultivation of Science , Jadavpur, Kolkata - 700 032, India
| | - Soumik Dinda
- Department of Biological Chemistry, Indian Association for the Cultivation of Science , Jadavpur, Kolkata - 700 032, India
| | - Pritam Choudhury
- Department of Biological Chemistry, Indian Association for the Cultivation of Science , Jadavpur, Kolkata - 700 032, India
| | - Prasanta Kumar Das
- Department of Biological Chemistry, Indian Association for the Cultivation of Science , Jadavpur, Kolkata - 700 032, India
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Vedhanarayanan B, Nair VS, Nair VC, Ajayaghosh A. Formation of Coaxial Nanocables with Amplified Supramolecular Chirality through an Interaction between Carbon Nanotubes and a Chiral π-Gelator. Angew Chem Int Ed Engl 2016; 55:10345-9. [PMID: 27461073 DOI: 10.1002/anie.201605354] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Indexed: 12/27/2022]
Abstract
In an attempt to gather experimental evidence for the influence of carbon allotropes on supramolecular chirality, we found that carbon nanotubes (CNTs) facilitate amplification of the molecular chirality of a π-gelator (MC-OPV) to supramolecular helicity at a concentration much lower than that required for intermolecular interaction. For example, at a concentration 1.8×10(-4) m, MC-OPV did not exhibit a CD signal; however, the addition of 0-0.6 mg of SWNTs resulted in amplified chirality as evident from the CD spectrum. Surprisingly, AFM analysis revealed the formation of thick helical fibers with a width of more than 100 nm. High-resolution TEM analysis and solid-state UV/Vis/NIR spectroscopy revealed that the thick helical fibers were cylindrical cables composed of individually wrapped and coaxially aligned SWNTs. Such an impressive effect of CNTs on supramolecular chirality and cylindrical-cable formation has not been reported previously.
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Affiliation(s)
- Balaraman Vedhanarayanan
- Photosciences and Photonics Section, Chemical Sciences and Technology Division and Academy of Scientific and Innovative Research (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695 019, India
| | - Vishnu S Nair
- Photosciences and Photonics Section, Chemical Sciences and Technology Division and Academy of Scientific and Innovative Research (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695 019, India
| | - Vijayakumar C Nair
- Photosciences and Photonics Section, Chemical Sciences and Technology Division and Academy of Scientific and Innovative Research (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695 019, India
| | - Ayyappanpillai Ajayaghosh
- Photosciences and Photonics Section, Chemical Sciences and Technology Division and Academy of Scientific and Innovative Research (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695 019, India.
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