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Hisamatsu Y, Cheng F, Yamamoto K, Takase H, Umezawa N, Higuchi T. Control of the stepwise self-assembly process of a pH-responsive amphiphilic 4-aminoquinoline-tetraphenylethene conjugate. NANOSCALE 2023; 15:3177-3187. [PMID: 36655765 DOI: 10.1039/d2nr05756e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Controlling the kinetic processes of self-assembly and switching their kinetic properties according to the changes in external environments are crucial concepts in the field of supramolecular polymers in water for biological and biomedical applications. Here we report a new self-assembling amphiphilic 4-aminoquinoline (4-AQ)-tetraphenylethene (TPE) conjugate that exhibits kinetically controllable stepwise self-assembly and has the ability of switching its kinetic nature in response to pH. The self-assembly process of the 4-AQ amphiphile comprises the formation of sphere-like nanoparticles, a transition to short nanofibers, and their growth to long nanofibers with ∼1 μm length scale at room temperature (RT). The timescale of the self-assembly process differs according to the pH-responsivity of the 4-AQ moiety in a weakly acidic to neutral pH range. Therefore, after aging for 24 h at RT, the 4-AQ amphiphile forms metastable short nanofibers at pH 5.5, while it forms thermodynamically favored long nanofibers at pH 7.4. Moreover, the modulation of nanofiber growth proceeding spontaneously at RT was achieved by switching the kinetic pathway through changing the pH between 7.4 and 5.5.
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Affiliation(s)
- Yosuke Hisamatsu
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
| | - Fangzhou Cheng
- Faculty of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
| | - Katsuhiro Yamamoto
- Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Hiroshi Takase
- Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Naoki Umezawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
| | - Tsunehiko Higuchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
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Khamrui R, Manna RN, Rajdev P, Paul A, Ghosh S. Impact of the Hydrogen-Bonding Functional Group on Hydrogelation of Amphiphilic Naphthalene-diimide Derivatives and Nonspecific Protein Adsorption. ACS APPLIED BIO MATERIALS 2022; 5:5410-5417. [PMID: 36251686 DOI: 10.1021/acsabm.2c00761] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This manuscript reports the effect of hydrogen-bonding functionality on the supramolecular assembly of naphthalene-diimide (NDI)-derived amphiphilic building blocks in water. All the molecules contain a central NDI chromophore, functionalized with a hydrophilic oligo-oxyethylene (OE) wedge in one arm and a phenyl group on the opposite arm. They differ by a single H-bonding functionality, which links the NDI chromophore and the phenyl moiety. The H-bonding functionalities are amide, thioamide, urea, and urethane in NDI-A, NDI-TA, NDI-U, and NDI-UT, respectively. All of these molecules exhibit π-stacking in water, as evident from their distinct UV/vis absorption spectra when compared to that of the monomeric dye in THF. However, among these four, only NDI-A and NDI-TA show hydrogelation, while the other two precipitate out of the medium. The NDI-A hydrogel also exhibits transient stability and leads to a crystalline precipitate within ∼5 h. Only NDI-TA produces stable transparent hydrogel with the entangled fibrillar morphology that is typical for gelators. Both NDI-A and NDI-TA showed a thermoresponsive property with a lower critical solution temperature of about 41-42 °C. Powder XRD studies show a parallel orientation for NDI-A and an antiparallel orientation for NDI-TA. Computational studies support this experimental observation and indicate that the NDI-A assembly is highly stabilized by strong H-bonding among the amide groups and π-stacking interaction in the parallel orientation. On the other hand, due to weak H-bonding among the thioamide groups, the binding energy of the parallelly oriented NDI-TA was significantly lower and the optimized structure was disordered. Instead, its antiparallel orientation was more stable, with criss-cross aligned H-bonding interactions and π-π interactions between adjacent aromatic rings. The NDI-TA hydrogel with less ordered OE chains on the surface showed prominent adsorption of serum protein BSA. In sharp contrast, NDI-A did not exhibit any notable interaction with BSA, as evident from the ITC studies.
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Affiliation(s)
- Rajesh Khamrui
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Rabindra Nath Manna
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Priya Rajdev
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Ankan Paul
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
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Synthesis and anti-inflammatory activity of paeonol derivatives with etherized aryl urea by regulating TLR4/MyD88 signaling pathway in RAW264.7 cell. Bioorg Chem 2022; 127:105939. [PMID: 35700569 DOI: 10.1016/j.bioorg.2022.105939] [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: 10/05/2021] [Revised: 06/05/2022] [Accepted: 06/06/2022] [Indexed: 11/21/2022]
Abstract
Thirty-three novel paeonol etherized aryl urea derivatives (PEUs) were synthesized via a bromination-Williamson Ether Synthesis-deprotection-nucleophilic addition reaction sequence. The structures of PEUs were characterized by LC-MS, HRMS, 1H NMR and 13C NMR spectra. The levels of nitric oxide (NO), tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β) in lipopolysaccharide (LPS)-induced RAW264.7 macrophages were initially employed to evaluate the anti-inflammatory effects of all compounds. Remarkably, b16 exhibited a good anti-inflammatory activity at 2.5 μm which is the same as the potency of paeonol at 20 μm. The results of mechanism research displayed that the anti-inflammatory effect of b16 was ascribed to the inhibition of the TLR4/MyD88 signaling pathway and inflammatory factors. Additionally, b16 distinctly reduced the generation of free radicals in macrophages and strikingly increased the mitochondrial membrane potential. According to the structure-activity relationships (SAR) of PEUs, the incorporation of halogens on the benzene ring and the hydrogen of phenol hydroxyl substituted by aryl urea, were beneficial to enhance the anti-inflammatory activities. Molecular docking results illustrated that the binding ability of b16 to TLR4 was stronger than that of paeonol. In summary, the novel aryl urea-derivied paeonol b16 could be a new promising candidate for the treatment of inflammation-related diseases.
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Li J, Chen M, Zhou S, Li H, Hao J. Self-assembly of fullerene C 60-based amphiphiles in solutions. Chem Soc Rev 2022; 51:3226-3242. [PMID: 35348141 DOI: 10.1039/d1cs00958c] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fullerene C60 is an all-carbon cage molecule with rich physicochemical properties. It is highly symmetric and hydrophobic, which can be used as a building block for the preparation of amphiphiles that self-assemble into diverse supramolecular structures in aqueous solutions. Meanwhile, C60 is also lipophobic, which is different from the alkyl chains in traditional surfactants. By attaching alkyl chains to the C60 sphere, a new type of lipophobic-lipophilic amphiphiles can be constructed which undergo self-assembly in n-alkanes. When inorganic clusters such as polyoxometalate are linked to the C60 sphere, organic-inorganic hybrids will be obtained which can self-assemble in polar organic solvents. Pristine C60 has also been modified by polar groups such as hydroxy and carboxy, which are linked to hydrophobic moieties and form a new class of amphiphiles. In this review, the self-assembly of C60-based amphiphiles in aqueous and nonaqueous solutions will be summarized. The characteristics exhibited by C60-based amphiphiles during the self-assembly will be discussed with close comparison to traditional surfactants, and the influences of the aggregate formation on the physicochemical properties of the C60 sphere will be described. Finally, a brief summary will be given together with a promising perspective in near future.
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Affiliation(s)
- Jinrui Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
| | - Mengjun Chen
- School of Qilu Transportation, Shandong University, Jinan, 250002, China
| | - Shengju Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, China
| | - Hongguang Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
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Bhosale SV, Al Kobaisi M, Jadhav RW, Morajkar PP, Jones LA, George S. Naphthalene diimides: perspectives and promise. Chem Soc Rev 2021; 50:9845-9998. [PMID: 34308940 DOI: 10.1039/d0cs00239a] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this review, we describe the developments in the field of naphthalene diimides (NDIs) from 2016 to the presentday. NDIs are shown to be an increasingly interesting class of molecules due to their electronic properties, large electron deficient aromatic cores and tendency to self-assemble into functional structures. Almost all NDIs possess high electron affinity, good charge carrier mobility, and excellent thermal and oxidative stability, making them promising candidates for applications in organic electronics, photovoltaic devices, and flexible displays. NDIs have also been extensively studied due to their potential real-world uses across a wide variety of applications including supramolecular chemistry, sensing, host-guest complexes for molecular switching devices, such as catenanes and rotaxanes, ion-channels, catalysis, and medicine and as non-fullerene accepters in solar cells. In recent years, NDI research with respect to supramolecular assemblies and mechanoluminescent properties has also gained considerable traction. Thus, this review will assist a wide range of readers and researchers including chemists, physicists, biologists, medicinal chemists and materials scientists in understanding the scope for development and applicability of NDI dyes in their respective fields through a discussion of the main properties of NDI derivatives and of the status of emerging applications.
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Affiliation(s)
- Sheshanath V Bhosale
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Mohammad Al Kobaisi
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Ratan W Jadhav
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Pranay P Morajkar
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Lathe A Jones
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Subi George
- New Chemistry Unit (NCU), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur PO, Bangalore-560064, India
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6
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Sikder A, Chakraborty S, Rajdev P, Dey P, Ghosh S. Molecular Recognition Driven Bioinspired Directional Supramolecular Assembly of Amphiphilic (Macro)molecules and Proteins. Acc Chem Res 2021; 54:2670-2682. [PMID: 34014638 DOI: 10.1021/acs.accounts.1c00195] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Bioinspired self-assembly has been explored with diverse synthetic scaffolds, among which amphiphiles are perhaps the most extensively studied systems. Classical surfactants or amphiphilic block copolymers, depending on the hydrophobic-hydrophilic balance, produce distinct nanostructures, which hold promise for applications ranging from biology to materials sciences. Nevertheless, their immiscibility-driven aggregation does not provide the opportunity to precisely regulate the internal order, morphology, or functional group display, which is highly desirable, especially in the context of biological applications.A new class of amphiphiles have emerged in the recent past in which the hydrophilic segment(s) is appended with a hydrophobic supramolecular-structure-directing-unit (SSDU), consisting of a π-conjugated chromophore and a H-bonding group. Self-recognition of the SSDU by attractive directional interactions governs the supramolecular assembly, which is fundamentally different than the repulsive solvent-immiscibility driven aggregation of traditional amphiphiles. Such SSDU-appended hydrophilic polymers exhibit entropy-driven highly stable self-assembly producing distinct nanostructures depending on the H-bonding functional group. For example, polymers with the hydrazide-functionalized SSDU attached form a polymersome, while in a sharp contrast, the same polymers when connected to an amide containing SSDU produce a cylindrical micelle via a spherical-micelle intermediate. This relationship holds true for a series of SSDU-attached hydrophilic polymers irrespective of the hydrophobic/hydrophilic balance or chemical structure, indicating that the supramolecular-assembly is primarily controlled by the specific molecular-recognition motif of the SSDU, instead of the packing parameter-based norms. Beyond synthetic polymers, SSDU-attached proteins also exhibit similar molecular-recognition driven self-assembly as well as coassembly with SSDU-attached polymers or hydrophilic wedges, producing multi-stimuli-responsive nanostructures in which the protein gains remarkable protection from thermal denaturation or enzymatic hydrolysis and exhibits redox-responsive enzymatic activity.Furthermore, SSDU-derived bola-shape π-amphiphiles have been recognized as a useful scaffold for the synthesis of unsymmetric polymersomes, rarely reported in the literature. The building block consists of a hydrophobic naphthalene-diimide (NDI) π-system attached to a hydrophilic functional group (ionic or nonionic) and a nonionic wedge on its two opposite arms. Extended H-bonding among the hydrazide groups, placed only on one side of the central chromophore by design, ensures stacking of the NDIs with parallel orientation and induces a preferred direction of curvature so that the H-bonded chain and consequently the functional groups attached to the same side remain at the inner-wall of the supramolecular polymersome. Automatically, the functional groups, located on the other side, are displayed at the outer surface. This design works for different amphiphiles, which by virtue of efficient and predictable functional group display, strongly influences the multivalent binding with different biological targets resulting in efficient enzyme inhibition, glycocluster effect, or antibacterial activity, depending on the nature of the functional group. By taking advantage of the electron accepting nature of the NDI, electron rich pyrene-containing amphiphiles can be costacked in alternating sequence, producing temperature and redox-responsive supramolecular polymers with NDI/pyrene stoichiometry-dependent morphology, lower critical solution temperature (LCST), functional group display, and antibacterial activity.
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Affiliation(s)
- Amrita Sikder
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Saptarshi Chakraborty
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Priya Rajdev
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Pradip Dey
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
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Chakraborty S, Khamrui R, Ghosh S. Redox responsive activity regulation in exceptionally stable supramolecular assembly and co-assembly of a protein. Chem Sci 2020; 12:1101-1108. [PMID: 34163877 PMCID: PMC8179030 DOI: 10.1039/d0sc05312k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Supramolecular assembly of biomolecules/macromolecules stems from the desire to mimic complex biological structures and functions of living organisms. While DNA nanotechnology is already in an advanced stage, protein assembly is still in its infancy as it is a significantly difficult task due to their large molecular weight, conformational complexity and structural instability towards variation in temperature, pH or ionic strength. This article reports highly stable redox-responsive supramolecular assembly of a protein Bovine serum albumin (BSA) which is functionalized with a supramolecular structure directing unit (SSDU). The SSDU consists of a benzamide functionalized naphthalene-diimide (NDI) chromophore which is attached with the protein by a bio-reducible disulfide linker. The SSDU attached protein (NDI-BSA) exhibits spontaneous supramolecular assembly in water by off-set π-stacking among the NDI chromophores, leading to the formation of spherical nanoparticles (diameter: 150–200 nm). The same SSDU when connected with a small hydrophilic wedge (NDI-1) instead of the large globular protein, exhibits a different π-stacking mode with relatively less longitudinal displacement which results in a fibrillar network and hydrogelation. Supramolecular co-assembly of NDI-BSA and NDI-1 (3 : 7) produces similar π-stacking and an entangled 1D morphology. Both the spherical assembly of NDI-BSA or the fibrillar co-assembly of NDI-BSA + NDI-1 (3 : 7) provide sufficient thermal stability to the protein as its thermal denaturation could be completely surpassed while the secondary structure remained intact. However, the esterase like activity of the protein reduced significantly as a result of such supramolecular assembly indicating limited access by the substrate to the active site of the enzyme located in the confined environment. In the presence of glutathione (GSH), a biologically important tri-peptide, due to the cleavage of the disulfide bond, the protein became free and was released, resulting in fully regaining its enzymatic activity. Such supramolecular assembly provided excellent protection to the protein against enzymatic hydrolysis as the relative hydrolysis was estimated to be <30% for the co-assembled protein with respect to the free protein under identical conditions. Similar to bioactivity, the enzymatic hydrolysis also became prominent after GSH-treatment, confirming that the lack of hydrolysis in the supramolecularly assembled state is indeed related to the confinement of the protein in the nanostructure assembly. Supramolecular structure directing unit regulated co-assembly of a protein produces a highly stable fibrillar nanostructure and glutathione responsive release of the protein in its active state.![]()
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Affiliation(s)
- Saptarshi Chakraborty
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja S. C. Mullick Road Kolkata India-700032
| | - Rajesh Khamrui
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja S. C. Mullick Road Kolkata India-700032
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja S. C. Mullick Road Kolkata India-700032
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Mukherjee A, Sakurai T, Seki S, Ghosh S. Ultrathin Two Dimensional (2D) Supramolecular Assembly and Anisotropic Conductivity of an Amphiphilic Naphthalene-Diimide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13096-13103. [PMID: 33103440 DOI: 10.1021/acs.langmuir.0c02604] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two-dimensional (2D)-supramolecular assemblies of π-conjugated chromophores are relatively less common compared to a large number of recent examples on their low dimensional (0D or 1D) assemblies or 3D architectures. This article reports a rational design for the 2D supramolecular assembly of an amphiphilic core-substituted naphthalene-diimide derivative (cNDI-1). The building block contains a naphthalene-diimide (NDI) chromophore, symmetrically substituted with two dodecyl chains from the aromatic core while the imide positions are functionalized with two hydrophilic wedges containing oligo-oxyethylene chains. In water, it exhibits entropically favorable self-assembly with a critical aggregation concentration of 1.5 × 10-5 M and a lower critical solution temperature of 55 °C. The UV/vis absorption spectrum in water shows bathochromically shifted absorption bands compared to that of the monomeric dye in THF, indicating offset π-stacking among the NDI chromophores. C-H symmetric and asymmetric stretching frequencies in the FT-IR spectrum support the presence of organized hydrocarbon chains in trans conformation in the self-assembled state, similar to that in the crystalline n-alkanes, which is further supported by studying the general polarization (GP) values of a noncovalently entrapped Laurdan dye. The atomic force microscopy (AFM) image shows the formation of ultrathin (height < 2.0 nm) ribbons for the spontaneously assembled sample which eventually produces a large-area 2D nanosheet by the lateral organization. The powder X-ray diffraction pattern of the drop-casted film, prepared from the preformed aggregates, reveals sharp peaks that indicate a crystalline lamellar packing along the direction of the 2D growth. Differential scanning calorimetry trace shows the melting of the crystalline alkyl chain domain at T > 75 °C, which destroys the 2D assembly. Local-scale photoconductivity of the ordered 2D assembly, studied by the flash-photolysis time-resolved microwave conductivity (FP-TRMC) technique, reveals an anisotropic conductivity with ∼3 times larger conductivity along the parallel direction compared to that along the perpendicular one.
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Affiliation(s)
- Anurag Mukherjee
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Tsuneaki Sakurai
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
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Chakraborty S, Barman R, Ghosh S. Tunable nanostructures by directional assembly of donor–acceptor supramolecular copolymers and antibacterial activity. J Mater Chem B 2020; 8:2909-2917. [DOI: 10.1039/c9tb02772f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This manuscript reports supramolecular copolymerization of amphiphilic donor (D) and acceptor (A) units and their antibacterial activity.
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Affiliation(s)
- Saptarshi Chakraborty
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Ranajit Barman
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
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10
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Syamala PPN, Soberats B, Görl D, Gekle S, Würthner F. Thermodynamic insights into the entropically driven self-assembly of amphiphilic dyes in water. Chem Sci 2019; 10:9358-9366. [PMID: 32110300 PMCID: PMC7017873 DOI: 10.1039/c9sc03103k] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 08/19/2019] [Indexed: 01/04/2023] Open
Abstract
Self-assembly of amphiphilic dyes and π-systems are more difficult to understand and to control in water compared to organic solvents due to the hydrophobic effect. Herein, we elucidate in detail the self-assembly of a series of archetype bolaamphiphiles bearing a naphthalene bisimide (NBI) π-core with appended oligoethylene glycol (OEG) dendrons of different size. By utilizing temperature-dependent UV-vis spectroscopy and isothermal titration calorimetry (ITC), we have dissected the enthalpic and entropic parameters pertaining to the molecules' self-assembly. All investigated compounds show an enthalpically disfavored aggregation process leading to aggregate growth and eventually precipitation at elevated temperature, which is attributed to the dehydration of oligoethylene glycol units and their concomitant conformational changes. Back-folded conformation of the side chains plays a major role, as revealed by molecular dynamics (MD) and two dimensional NMR (2D NMR) studies, in directing the association. The sterical effect imparted by the jacketing of monomers and dimers also changes the aggregation mechanism from isodesmic to weakly anti-cooperative.
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Affiliation(s)
- Pradeep P N Syamala
- Universität Würzburg , Institut für Organische Chemie , Am Hubland , 97074 Würzburg , Germany .
- Center for Nanosystems Chemistry & Bavarian Polymer Institute (BPI) , Universität Würzburg , Theodor-Boveri-Weg , 97074 Würzburg , Germany
| | - Bartolome Soberats
- Center for Nanosystems Chemistry & Bavarian Polymer Institute (BPI) , Universität Würzburg , Theodor-Boveri-Weg , 97074 Würzburg , Germany
| | - Daniel Görl
- Center for Nanosystems Chemistry & Bavarian Polymer Institute (BPI) , Universität Würzburg , Theodor-Boveri-Weg , 97074 Würzburg , Germany
| | - Stephan Gekle
- Universität Bayreuth , Biofluid Simulation and Modeling, Theoretische Physik VI & Bavarian Polymer Institute (BPI) , 95440 Bayreuth , Germany .
| | - Frank Würthner
- Universität Würzburg , Institut für Organische Chemie , Am Hubland , 97074 Würzburg , Germany .
- Center for Nanosystems Chemistry & Bavarian Polymer Institute (BPI) , Universität Würzburg , Theodor-Boveri-Weg , 97074 Würzburg , Germany
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11
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Drechsler S, Balog S, Kilbinger AFM, Casalini T. The influence of substituents on gelation and stacking order of oligoaramid - based supramolecular networks. SOFT MATTER 2019; 15:7250-7261. [PMID: 31482923 DOI: 10.1039/c9sm00148d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Self-assembly has proven to be a powerful tool for functional, smart materials such as hydrogels derived from low molecular weight compounds. However, the targeted design of functional gelators remains difficult. Here, we present a set of four Y-shaped aromatic amide tetramers with varying functionalities able to undergo different non-covalent interactions. These compounds were explored towards their self-assembly behavior and hydrogel formation by experimental methods such as UV-vis spectroscopy, rheology, small angle X-ray scattering (SAXS), scanning/transmission electron, and atomic force microscopy. Additionally, we investigated the main mechanisms behind oligomer aggregation and the structure of the resulting supramolecular chains through full atomistic molecular dynamics simulations.
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Affiliation(s)
- Susanne Drechsler
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland.
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12
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Guterman T, Levin M, Kolusheva S, Levy D, Noor N, Roichman Y, Gazit E. Real‐Time In‐Situ Monitoring of a Tunable Pentapeptide Gel–Crystal Transition. Angew Chem Int Ed Engl 2019; 58:15869-15875. [DOI: 10.1002/anie.201907971] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/26/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Tom Guterman
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Maayan Levin
- Raymond and Beverly Sackler School of Chemistry Tel Aviv University Tel Aviv 6997801 Israel
| | - Sofiya Kolusheva
- Ilse Katz Institute for Nanotechnology Ben Gurion University of the Negev Beer Sheva 84105 Israel
| | - Davide Levy
- Wolfson Applied Materials Research Center Tel Aviv University Tel Aviv 6997801 Israel
| | - Nadav Noor
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
| | - Yael Roichman
- Raymond and Beverly Sackler School of Chemistry Tel Aviv University Tel Aviv 6997801 Israel
- Raymond and Beverly Sackler School of Physics & Astronomy Tel Aviv University Tel Aviv 6997801 Israel
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
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13
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Guterman T, Levin M, Kolusheva S, Levy D, Noor N, Roichman Y, Gazit E. Real‐Time In‐Situ Monitoring of a Tunable Pentapeptide Gel–Crystal Transition. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907971] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tom Guterman
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Maayan Levin
- Raymond and Beverly Sackler School of Chemistry Tel Aviv University Tel Aviv 6997801 Israel
| | - Sofiya Kolusheva
- Ilse Katz Institute for Nanotechnology Ben Gurion University of the Negev Beer Sheva 84105 Israel
| | - Davide Levy
- Wolfson Applied Materials Research Center Tel Aviv University Tel Aviv 6997801 Israel
| | - Nadav Noor
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
| | - Yael Roichman
- Raymond and Beverly Sackler School of Chemistry Tel Aviv University Tel Aviv 6997801 Israel
- Raymond and Beverly Sackler School of Physics & Astronomy Tel Aviv University Tel Aviv 6997801 Israel
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
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14
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Zheng B, Luo Z, Deng Y, Zhang Q, Gao L, Dong S. A degradable low molecular weight monomer system with lower critical solution temperature behaviour in water. Chem Commun (Camb) 2019; 55:782-785. [PMID: 30569924 DOI: 10.1039/c8cc09160a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A degradable thermo-responsive system was prepared and investigated. The degradation behaviour induced by the cleavage process of the thermo-sensitive crown ethers effectively altered the thermo-responsiveness.
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Affiliation(s)
- Bo Zheng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, P. R. China
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15
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Choisnet T, Canevet D, Sallé M, Nicol E, Niepceron F, Jestin J, Colombani O. Robust supramolecular nanocylinders of naphthalene diimide in water. Chem Commun (Camb) 2019; 55:9519-9522. [DOI: 10.1039/c9cc04723a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Long and robust NDI-containing nanocylinders formed by supramolecular self-assembly via hydrogen bonds and aromatic interactions in aqueous medium.
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Affiliation(s)
- Thomas Choisnet
- Institut des Molécules et des Matériaux du Mans (IMMM)
- Le Mans Université
- UMR 6283
- 72085 Le Mans
- France
| | - David Canevet
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- Angers Cedex
| | - Marc Sallé
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- Angers Cedex
| | - Erwan Nicol
- Institut des Molécules et des Matériaux du Mans (IMMM)
- Le Mans Université
- UMR 6283
- 72085 Le Mans
- France
| | - Frédérick Niepceron
- Institut des Molécules et des Matériaux du Mans (IMMM)
- Le Mans Université
- UMR 6283
- 72085 Le Mans
- France
| | - Jacques Jestin
- Laboratoire Léon Brillouin
- CEA Saclay
- UMR12 CEA-CNRS
- 91191 Gif-sur-Yvette Cedex
- France
| | - Olivier Colombani
- Institut des Molécules et des Matériaux du Mans (IMMM)
- Le Mans Université
- UMR 6283
- 72085 Le Mans
- France
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16
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Saez Talens V, Makurat DMM, Liu T, Dai W, Guibert C, Noteborn WEM, Voets IK, Kieltyka RE. Shape modulation of squaramide-based supramolecular polymer nanoparticles. Polym Chem 2019. [DOI: 10.1039/c9py00310j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report the synthesis and self-assembly of a library of squaramide-based bolaamphiphiles with variable hydrophobic and hydrophilic domain sizes to understand their effect on the formation of supramolecular polymer nanoparticles.
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Affiliation(s)
- Victorio Saez Talens
- Department of Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- 2300 RA Leiden
- The Netherlands
| | - D. M. M. Makurat
- Department of Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- 2300 RA Leiden
- The Netherlands
| | - Tingxian Liu
- Department of Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- 2300 RA Leiden
- The Netherlands
| | - Wei Dai
- Department of Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- 2300 RA Leiden
- The Netherlands
| | - Clément Guibert
- Laboratory of Physical Chemistry
- Laboratory of Macromolecular and Organic Chemistry
- and Institute of Complex Molecular Systems
- Eindhoven University of Technology
- Eindhoven
| | - Willem E. M. Noteborn
- Department of Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- 2300 RA Leiden
- The Netherlands
| | - Ilja K. Voets
- Laboratory of Physical Chemistry
- Laboratory of Macromolecular and Organic Chemistry
- and Institute of Complex Molecular Systems
- Eindhoven University of Technology
- Eindhoven
| | - Roxanne E. Kieltyka
- Department of Supramolecular and Biomaterials Chemistry
- Leiden Institute of Chemistry
- Leiden University
- 2300 RA Leiden
- The Netherlands
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17
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Chakraborty S, Ray D, Aswal VK, Ghosh S. Multi-Stimuli-Responsive Directional Assembly of an Amphiphilic Donor-Acceptor Alternating Supramolecular Copolymer. Chemistry 2018; 24:16379-16387. [DOI: 10.1002/chem.201803170] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Indexed: 01/20/2023]
Affiliation(s)
- Saptarshi Chakraborty
- Polymer Science Unit; Indian Association for the Cultivation of Science; 2A and 2B Raja S. C. Mullick Road 700032 Kolkata India
| | - Debes Ray
- Solid State Physics Division; Bhabha Atomic Research Centre; Trombay Mumbai 400085 India
| | - Vinod K. Aswal
- Solid State Physics Division; Bhabha Atomic Research Centre; Trombay Mumbai 400085 India
| | - Suhrit Ghosh
- Polymer Science Unit; Indian Association for the Cultivation of Science; 2A and 2B Raja S. C. Mullick Road 700032 Kolkata India
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18
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Matsuda W, Sakurai T, Ghosh G, Ghosh S, Seki S. Transient Optical-Microwave Spectroscopy for Electron Mobility Assessment in Solids and Gels: A Comprehensive Approach. J PHOTOPOLYM SCI TEC 2018. [DOI: 10.2494/photopolymer.31.91] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wakana Matsuda
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
| | - Tsuneaki Sakurai
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
| | - Goutam Ghosh
- Polymer Science Unit, Indian Association for the Cultivation of Science
| | - Suhrit Ghosh
- Polymer Science Unit, Indian Association for the Cultivation of Science
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
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19
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Uflyand IE, Dzhardimalieva GI. Molecular design of supramolecular polymers with chelated units and their application as functional materials. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1465567] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Igor E. Uflyand
- Department of Chemistry, Southern Federal University, Rostov-on-Don, Russian Federation
| | - Gulzhian I. Dzhardimalieva
- Laboratory of Metallopolymers, The Institute of Problems of Chemical Physics RAS, Chernogolovka, Russian Federation
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20
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Li F, Li X, Zhang X. Dynamic Diels–Alder reactions of maleimide–furan amphiphiles and their fluorescence ON/OFF behaviours. Org Biomol Chem 2018; 16:7871-7877. [DOI: 10.1039/c8ob01944d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Dynamic Diels–Alder additions of maleimide–furan amphiphiles lead to reversible fluorescence ON/OFF behaviours and exchange of furan moieties.
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Affiliation(s)
- Fen Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Xiaohui Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Xin Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
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