1
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Ding Y, Park J, Ikura R, Nara S, Toda K, Takashima Y. Cyclic Polyphenylene Sulfide as Additive to Improve the Mechanical Properties of Polystyrene-Based Materials. Macromolecules 2023. [DOI: 10.1021/acs.macromol.3c00148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Affiliation(s)
- Yuyang Ding
- Department of Macromolecular Science, Graduate School of Science, Osaka University 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Junsu Park
- Department of Macromolecular Science, Graduate School of Science, Osaka University 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Ryohei Ikura
- Department of Macromolecular Science, Graduate School of Science, Osaka University 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Saori Nara
- Processing Technical Division, DIC Corporation 12, Yawatakaigandori, Ichihara, Chiba 290-8585, Japan
| | - Kazuki Toda
- Processing Technical Division, DIC Corporation 12, Yawatakaigandori, Ichihara, Chiba 290-8585, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Institute for Advanced Co-Creation Studies, Osaka University 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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2
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Organic macrocycle-polyoxometalate hybrids. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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3
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Sensing cyclosarin (a chemical warfare agent) by Cucurbit[n]urils: A DFT/TD-DFT study. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Sabin C, Sam S, Hrishikes A, Salin B, Vigneshkumar PN, George J, John F. Supramolecular Drug Delivery Systems Based on Host‐Guest Interactions for Nucleic Acid Delivery. ChemistrySelect 2022. [DOI: 10.1002/slct.202203644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Christeena Sabin
- Bioorganic Chemistry Laboratory Department of Chemistry Sacred Heart College (Autonomous), Thevara Kochi Kerala India 682013
| | - Samanta Sam
- Bioorganic Chemistry Laboratory Department of Chemistry Sacred Heart College (Autonomous), Thevara Kochi Kerala India 682013
| | - A. Hrishikes
- Bioorganic Chemistry Laboratory Department of Chemistry Sacred Heart College (Autonomous), Thevara Kochi Kerala India 682013
| | - Biyatris Salin
- Bioorganic Chemistry Laboratory Department of Chemistry Sacred Heart College (Autonomous), Thevara Kochi Kerala India 682013
| | - P. N. Vigneshkumar
- Bioorganic Chemistry Laboratory Department of Chemistry Sacred Heart College (Autonomous), Thevara Kochi Kerala India 682013
- Department of Chemistry The University of British Columbia Okanagan Vancouver BC V6T 1Z4 Canada
| | - Jinu George
- Bioorganic Chemistry Laboratory Department of Chemistry Sacred Heart College (Autonomous), Thevara Kochi Kerala India 682013
| | - Franklin John
- Bioorganic Chemistry Laboratory Department of Chemistry Sacred Heart College (Autonomous), Thevara Kochi Kerala India 682013
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5
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Liu Q, Wang X. Fabricating sub-nanometer materials through cluster assembly. Chem Sci 2022; 13:12280-12289. [PMID: 36382289 PMCID: PMC9629133 DOI: 10.1039/d2sc03813g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 09/25/2022] [Indexed: 10/05/2023] Open
Abstract
The self-assembly of clusters provides a feasible approach for the bottom-up fabrication of functional materials with tailored properties. Sub-nanometer cluster assembly with a well-defined construction presents a precisely controllable structure and extraordinary properties, which provides an ideal model for the investigation of structures and properties at the molecular level. Non-covalent interactions between clusters may dominate the assembly behavior, appearing as tunable structures different from their nano-counterparts. Interactions between clusters and their superatom orbitals can significantly influence the electronic structures, because of which exceptional properties may emerge. In this paper, recent progress on cluster-based assemblies is introduced, including sub-nanometer building blocks of noble metal and polyoxometalate (POM) clusters. The structures, formation mechanism and properties of these cluster assemblies are discussed from experimental and theoretical aspects. This perspective aims to provide a new insight into the design and manufacture of sub-nanometer materials based on clusters.
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Affiliation(s)
- Qingda Liu
- Department of Chemistry, Key Lab of Organic Optoelectronics and Molecular Engineering, Tsinghua University Beijing 100084 China
| | - Xun Wang
- Department of Chemistry, Key Lab of Organic Optoelectronics and Molecular Engineering, Tsinghua University Beijing 100084 China
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6
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Liu Z, Li Z, Li B, Zhou L, Zhang H, Han J. Hybrid Macrocyclic Polymers: Self-Assembly Containing Cucurbit[m]uril-pillar[n]arene. Polymers (Basel) 2022; 14:1777. [PMID: 35566949 PMCID: PMC9106019 DOI: 10.3390/polym14091777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/23/2022] [Accepted: 04/26/2022] [Indexed: 02/01/2023] Open
Abstract
Supramolecular self-assembly by hybrid macrocycles containing both cucurbit[m]uril (CB[m]) and pillar[n]arene was discussed and summarized in this review. Due to different solubility, diverse-sized cavities, and various driving forces in recognizing guests, the role of CB[m] and pillar[n]arene in such hybrid macrocyclic systems could switch between competitor in capturing specialized guests, and cooperator for building advanced hybridized macrocycles, by controlling their characteristics in host-guest inclusions. Furthermore, both CB[m] and pillar[n]arene were employed for fabricating advanced supramolecular self-assemblies such as mechanically interlocked molecules and supramolecular polymers. In those self-assemblies, CB[m] and pillar[n]arene played significant roles in, e.g., microreactor for catalyzing particular reactions to bridge different small pieces together, molecular "joint" to connect different monomers into larger assemblies, and "stabilizer" in accommodating the guest molecules to adopt a favorite structure geometry ready for assembling.
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Affiliation(s)
- Zhaona Liu
- Medical School, Xi’an Peihua University, Xi’an 710125, China;
| | - Zhizheng Li
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China; (Z.L.); (B.L.); (L.Z.)
| | - Bing Li
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China; (Z.L.); (B.L.); (L.Z.)
| | - Le Zhou
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China; (Z.L.); (B.L.); (L.Z.)
| | - Huacheng Zhang
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China; (Z.L.); (B.L.); (L.Z.)
| | - Jie Han
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
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7
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Rakrai W, Tabtimsai C, Kaewtong C, Wanno B. Theoretical investigation of the complexation, structural, and electronic properties of complexes between oseltamivir drug and cucurbit[n = 6–9]urils. Struct Chem 2022. [DOI: 10.1007/s11224-022-01888-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Sayed M, Pal H. An overview from simple host-guest systems to progressively complex supramolecular assemblies. Phys Chem Chem Phys 2021; 23:26085-26107. [PMID: 34787121 DOI: 10.1039/d1cp03556h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Supramolecular chemistry involving macrocyclic hosts is a highly interdisciplinary and fast-growing research field in chemistry, biochemistry, and materials science. Host-guest based supramolecular assemblies, as constructed through non-covalent interactions, are highly dynamic in nature, and can be tuned easily using their responses to various external stimuli, providing a convenient approach to achieve excellent functional materials. Macrocyclic hosts, particularly cyclodextrins, cucurbit[n]urils, and calix[n]arenes, which have unique features like possessing hydrophobic cavities of different sizes, along with hydrophilic external surfaces, which are also amenable towards easy derivatizations, are versatile cavitands or host molecules to encapsulate diverse guest molecules to form stable host-guest complexes with many unique structures and properties. Interestingly, host-guest complexes possessing amphiphilic properties can easily lead to the formation of various advanced supramolecular assemblies, like pseudorotaxanes, rotaxanes, polyrotaxanes, supramolecular polymers, micelles, vesicles, supramolecular nanostructures, and so on. Moreover, these supramolecular assemblies, with varied morphologies and responsiveness towards external stimuli, have immense potential for applications in nanotechnology, materials science, biosensors, drug delivery, analytical chemistry and biomedical sciences. In this perspective, we present a stimulating overview, discussing simple host-guest systems to complex supramolecular assemblies in a systematic manner, aiming to encourage future researchers in this fascinating area of supramolecular chemistry to develop advanced supramolecular materials with superior functionalities, for their deployment in diverse applied areas.
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Affiliation(s)
- Mhejabeen Sayed
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, India. .,Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Haridas Pal
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India.,Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
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9
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Aoudi B, Khaligh A, Sheidaei Y, Tuncel D. In situ-Electrochemically reduced graphene oxide integrated with cross-linked supramolecular polymeric network for electrocatalytic hydrogen evaluation reaction. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Yang D, Liu M, Xiao X, Tao Z, Redshaw C. Polymeric self-assembled cucurbit[n]urils: Synthesis, structures and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213733] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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11
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Liu J, Lambert H, Zhang YW, Lee TC. Rapid Estimation of Binding Constants for Cucurbit[8]uril Ternary Complexes Using Electrochemistry. Anal Chem 2021; 93:4223-4230. [PMID: 33595296 PMCID: PMC8023530 DOI: 10.1021/acs.analchem.0c04887] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Supramolecular complexes
are of fundamental interests in biomedicines
and adaptive materials, and thus facile methods to determine their
binding affinity show usefulness in the design of novel drugs and
materials. Herein, we report a novel approach to estimate the binding
constants KG2 of cucurbit[8]uril-methyl
viologen-based ternary complexes (CB8-MV2+-G2) using electrochemistry,
achieving high precision (±0.03) and practical accuracy (±0.32)
in logKG2 and short measurement time (<10
min). In particular, we have uncovered a linear correlation (R2 > 0.8) between the reduction potential
of
CB8-MV2+-G2 ternary complexes and their reported binding
constants from isothermal titration calorimetry, which allow a calibration
curve to be plotted based on 25 sample complexes. Mechanistic investigation
using experimental and computational approaches reveals that this
correlation stems from the dynamic host-guest exchange events occurring
after the electron transfer step. Binding constants of unknown ternary
complexes, where G2 = hydrocarbons, were estimated, illustrating potential
applications for sparsely soluble second guests.
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Affiliation(s)
- Jia Liu
- Institute for Materials Discovery, University College London (UCL), Bloomsbury, London WC1E 7JE, United Kingdom.,Department of Chemistry, University College London (UCL), 20 Gordon Street, London, WC1H 0AJ, United Kingdom
| | - Hugues Lambert
- Institute for Materials Discovery, University College London (UCL), Bloomsbury, London WC1E 7JE, United Kingdom.,Department of Chemistry, University College London (UCL), 20 Gordon Street, London, WC1H 0AJ, United Kingdom.,Institute of High Performance Computing, 1 Fusionopolis Way, 138632, Singapore
| | - Yong-Wei Zhang
- Institute of High Performance Computing, 1 Fusionopolis Way, 138632, Singapore
| | - Tung-Chun Lee
- Institute for Materials Discovery, University College London (UCL), Bloomsbury, London WC1E 7JE, United Kingdom.,Department of Chemistry, University College London (UCL), 20 Gordon Street, London, WC1H 0AJ, United Kingdom
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12
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Cao S, Wang P, Zeng X, Tao Z, Ni XL. Cucurbituril-assisted formation of tunable carbon dots from single organic precursors in water. Org Chem Front 2021. [DOI: 10.1039/d0qo01143f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile method by utilizing the host–guest interaction of Q[n]s for the catalytic fabrication of CDs with high emitting qualities and a tunable particle size from a single organic precursor in water with high output has been demonstrated.
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Affiliation(s)
- Shixian Cao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang
- China
| | - Pan Wang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang
- China
| | - Xi Zeng
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang
- China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang
- China
| | - Xin-Long Ni
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang
- China
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13
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Liu Y, Zhang Y, Yu H, Liu Y. Cucurbituril‐Based Biomacromolecular Assemblies. Angew Chem Int Ed Engl 2020; 60:3870-3880. [DOI: 10.1002/anie.202009797] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Yao‐Hua Liu
- College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Ying‐Ming Zhang
- College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Hua‐Jiang Yu
- College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Yu Liu
- College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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14
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Affiliation(s)
- Yao‐Hua Liu
- College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Ying‐Ming Zhang
- College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Hua‐Jiang Yu
- College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Yu Liu
- College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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15
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Zhao YY, Li H, Ge QM, Cong H, Liu M, Tao Z, Zhao JL. A chemo-sensor constructed by nanohybrid of multifarene[3,3] and rGO for serotonin hydrochloride with dual response in both fluorescence and voltammetry. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105145] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Zeng Z, Xie J, Luo G, Tao Z, Zhang Q. Host-guest interaction of cucurbit[8]uril with oroxin A and its effect on the properties of oroxin A. Beilstein J Org Chem 2020; 16:2332-2337. [PMID: 33029251 PMCID: PMC7522457 DOI: 10.3762/bjoc.16.194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/14/2020] [Indexed: 01/06/2023] Open
Abstract
In this study, we investigated the host-guest interactions between oroxin A (OA) and cucurbit[8]uril (Q[8]) using 1H NMR, MS, UV-vis and IR spectroscopy. The results showed that OA and Q[8] formed an inclusion compound (OA@Q[8]) with a molar ratio of 1:1 and a binding constant of 1.299 × 107 L·mol-1. In addition, the effect of Q[8] on the properties of OA was investigated through comparative experiments. The solubility of OA in water increased 22.47-fold when the concentration of Q[8] was 1 × 10-4 mol·L-1. Q[8] hardly affected the antioxidant capacity of OA, while the cumulative release of OA in gastric juice increased 2.3-fold after forming the inclusion compound with Q[8].
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Affiliation(s)
- Zhishu Zeng
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, No. 2708, South Section of Huaxi Avenue, Huaxi, Guiyang 550025, China
| | - Jun Xie
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, No. 2708, South Section of Huaxi Avenue, Huaxi, Guiyang 550025, China
| | - Guangyan Luo
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, No. 2708, South Section of Huaxi Avenue, Huaxi, Guiyang 550025, China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, No. 2708, South Section of Huaxi Avenue, Huaxi, Guiyang 550025, China
| | - Qianjun Zhang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, No. 2708, South Section of Huaxi Avenue, Huaxi, Guiyang 550025, China
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17
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Singhania A, Dutta M, Saha S, Sahoo P, Bora B, Ghosh S, Fujita D, Bandyopadhyay A. Speedy one-pot electrochemical synthesis of giant octahedrons from in situ generated pyrrolidinyl PAMAM dendrimer. SOFT MATTER 2020; 16:9140-9146. [PMID: 32926056 DOI: 10.1039/d0sm00819b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A novel electrochemical synthesis via a radical generation pathway is described here for the generation of a quaternary megamer structure from secondary dendrimers. The reaction is rapid and completes in <5 min. We have used lower/higher generation poly(amido)amine (PAMAM) dendrimers with carboxylic acid groups at the terminals. A precise electrocatalytic reaction at >3.5 V activates the carboxylic groups to undergo anodic oxidation (-e-) and produce radical carboxylate anions on the dendrimer surface. The reaction further goes through a decarboxylative elimination. Successive self-assembly creates billions of polydispersed and extremely stable ∼500 nm octahedron nanostructures, which we failed to destroy even by using a 20 kV electron beam. This is a new route for the speedy synthesis of important futuristic materials of well-defined shape. It has applications in building designer organic crystals for solar cells, organic electronics, rapid protein gelation, rapid protein crystallization, etc.
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Affiliation(s)
- Anup Singhania
- Chemical Science & Technology Division, CSIR-North East Institute of Science & Technology, Jorhat, Assam-785006, India. and Academy of Scientific and Innovative Research (AcSIR), CSIR-NEIST Campus, Jorhat, Assam 785006, India
| | - Mrinal Dutta
- PV Metrology Group, Advanced Materials Devices and Metrology Division, CSIR-National Physical Laboratory, New Delhi-110012, India and Academy of Scientific and Innovative Research (AcSIR), CSIR-NPL Campus, New Delhi-110012, India
| | - Supriya Saha
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NEIST Campus, Jorhat, Assam 785006, India and Advanced Computation and Data Sciences Division, CSIR-North East Institute of Science & Technology, Jorhat, Assam-785006, India
| | - Pathik Sahoo
- International Center for Materials and Nanoarchitectronics (MANA) and Research Center for Advanced Measurement and Characterization (RCAMC), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Japan
| | - Bharati Bora
- Chemical Science & Technology Division, CSIR-North East Institute of Science & Technology, Jorhat, Assam-785006, India.
| | - Subrata Ghosh
- Chemical Science & Technology Division, CSIR-North East Institute of Science & Technology, Jorhat, Assam-785006, India. and Academy of Scientific and Innovative Research (AcSIR), CSIR-NEIST Campus, Jorhat, Assam 785006, India
| | - Daisuke Fujita
- Research Center for Advanced Measurement and Characterization (RCAMC), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Japan
| | - Anirban Bandyopadhyay
- International Center for Materials and Nanoarchitectronics (MANA) and Research Center for Advanced Measurement and Characterization (RCAMC), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Japan
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18
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Miskolczy Z, Megyesi M, Biczók L, Prabodh A, Biedermann F. Kinetics and Mechanism of Cation-Induced Guest Release from Cucurbit[7]uril. Chemistry 2020; 26:7433-7441. [PMID: 31943402 PMCID: PMC7318709 DOI: 10.1002/chem.201905633] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Indexed: 12/11/2022]
Abstract
The release of two organic guests from cucurbit[7]uril (CB7) was selectively monitored by the stopped‐flow method in aqueous solutions of inorganic salts to reveal the mechanistic picture in detail. Two contrasting mechanisms were identified: The symmetric dicationic 2,7‐dimethyldiazapyrenium shows a cation‐independent complex dissociation mechanism coupled to deceleration of the ingression in the presence of alkali and alkaline earth cations (Mn+) due to competitive formation of CB7–Mn+ complexes. A much richer, unprecedented kinetic behaviour was observed for the ingression and egression of the monocationic and non‐symmetric berberine (B+). The formation of ternary complex B+–CB7–Mn+ was unambiguously revealed. A difference of more than two orders of magnitude was found in the equilibrium constants of Mn+ binding to B+–CB7 inclusion complex. Large cations, such as K+ and Ba2+, also promoted B+ expulsion from the ternary complex in a bimolecular process. This study reveals a previously hidden mechanistic picture and motivates systematic kinetic investigations of other host–guest systems.
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Affiliation(s)
- Zsombor Miskolczy
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, P.O. Box 286, 1519, Budapest, Hungary
| | - Mónika Megyesi
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, P.O. Box 286, 1519, Budapest, Hungary
| | - László Biczók
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, P.O. Box 286, 1519, Budapest, Hungary
| | - Amrutha Prabodh
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Frank Biedermann
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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19
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Complexation of a cationic pyrene derivative with sulfobutylether substituted β-cyclodextrin: Towards a stimulus-responsive supramolecular material. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112840] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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20
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Li J, Jia W, Ma G, Zhang X, An S, Wang T, Shi S. Construction of pH sensitive smart glutathione peroxidase (GPx) mimics based on pH responsive pseudorotaxanes. Org Biomol Chem 2020; 18:3125-3134. [PMID: 32255146 DOI: 10.1039/d0ob00122h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two organoselenium compounds, both of which were modified with two primary amine groups, were designed and synthesized to mimic the catalytic properties of glutathione peroxidase (GPx). It was demonstrated that the catalytic mechanism of the diselenide organoselenium compound (compound 1) was a ping-pong mechanism while that of the selenide organoselenium compound (compound 2) was a sequential mechanism. The pH-controlled switching of the catalytic activities was achieved by controlling the formation and dissociation of the pseudorotaxanes based on the organoselenium compounds and cucurbit[6]uril (CB[6]). Moreover, the switching was reversible at pH between 7 and 9 for compound 1 or between 7 and 10 for compound 2.
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Affiliation(s)
- Jiaxi Li
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Wenlong Jia
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Ganghui Ma
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Xiaoyin Zhang
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Shaojie An
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Tao Wang
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Shan Shi
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
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21
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Wu G, Clarke DE, Wu C, Scherman OA. Oligopeptide-CB[8] complexation with switchable binding pathways. Org Biomol Chem 2020; 17:3514-3520. [PMID: 30892363 DOI: 10.1039/c9ob00592g] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Host-guest complexes exhibiting a 1 : 1 binding stoichiometry need not consist of a single host and guest. A series of oligopeptides, which were previously reported to have abnormally high binding enthalpies were investigated to deduce whether they exist as a 2 : 2 quaternary or a 1 : 1 binary complex with cucurbit[8]uril (CB[8]). Through a systematic study of the sequence-specific binding pathways of peptide-CB[8] association, a phenylalanine-leucine dipeptide was found to be capable of switching from a 1 : 1 stoichiometric complex to a 2 : 1 complex. By studying the differences in size-based diffusion properties of these two binding modes, the presence of a 1 : 1 pairwise inclusion complex was verified for the regime where CB[8] is in excess. Findings in this study can be utilised to 'customise' the precise CB[8]-oligopeptide self-assembly pathway, acting as a useful toolbox in the design of supramolecular systems.
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Affiliation(s)
- Guanglu Wu
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
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22
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Özkan M, Kumar Y, Keser Y, Hadi SE, Tuncel D. Cucurbit[7]uril-Anchored Porphyrin-Based Multifunctional Molecular Platform for Photodynamic Antimicrobial and Cancer Therapy. ACS APPLIED BIO MATERIALS 2019; 2:4693-4697. [DOI: 10.1021/acsabm.9b00763] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Melis Özkan
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, 06800 Ankara, Turkey
| | - Yogesh Kumar
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, 06800 Ankara, Turkey
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
| | - Yagmur Keser
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, 06800 Ankara, Turkey
| | - Seyed E. Hadi
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, 06800 Ankara, Turkey
| | - Dönüs Tuncel
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, 06800 Ankara, Turkey
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
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23
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Madasamy K, Velayutham D, Kathiresan M. Facile Construction of a Supramolecular Organic Framework Using Naphthyl Viologen Guests and CB[8] Host via Charge-Transfer Complexation. ACS OMEGA 2019; 4:8528-8538. [PMID: 31459943 PMCID: PMC6649259 DOI: 10.1021/acsomega.9b00392] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 05/06/2019] [Indexed: 06/10/2023]
Abstract
Herein, we report the synthesis of guest-host systems comprising naphthyl-viologen-naphthyl (Np-Vio-Np) and viologen-naphthyl-viologen (Vio-Np-Vio) guest molecules and their subsequent supramolecular polymerization in the presence of a CB[8] host in water. In addition, the guest complexation of ethyl-terminated trimeric viologen (ETV) with Np-Vio-Np and CB[8] was investigated. As a result of supramolecular interactions, 2D supramolecular organic frameworks with high internal periodicity were constructed. 1H NMR studies clearly demonstrated the formation of a host-stabilized charge-transfer complex via folding back (Np-Vio-Np and Vio-Np-Vio) in the presence of CB[8]. In the case of ETV + Np-Vio-Np + CB[8], a large polymeric network was formed as indicated by the NMR titrations. UV-vis and fluorescence studies clearly confirm the formation of an inter/intra molecular CT complex upon complexation with cucurbit[8]uril. The size obtained using the dynamic light scattering (DLS) method pinpoints the formation of larger supramolecular aggregates in the order of μm through host-guest assembly, which is further complemented by FESEM and TEM. SAXS measurements indicate the formation of a 2D supramolecular polymer/polymer aggregate with long-range order.
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Affiliation(s)
- Kanagaraj Madasamy
- Electroorganic
Division and Academy of Scientific and Innovative Research
(AcSIR), CSIR−Central Electrochemical
Research Institute, Karaikudi, 630003 TamilNadu, India
| | - David Velayutham
- Electroorganic
Division and Academy of Scientific and Innovative Research
(AcSIR), CSIR−Central Electrochemical
Research Institute, Karaikudi, 630003 TamilNadu, India
| | - Murugavel Kathiresan
- Electroorganic
Division and Academy of Scientific and Innovative Research
(AcSIR), CSIR−Central Electrochemical
Research Institute, Karaikudi, 630003 TamilNadu, India
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24
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Thomas SS, Tang H, Bohne C. Noninnocent Role of Na+ Ions in the Binding of the N-Phenyl-2-naphthylammonium Cation as a Ditopic Guest with Cucurbit[7]uril. J Am Chem Soc 2019; 141:9645-9654. [DOI: 10.1021/jacs.9b03691] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Suma S. Thomas
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - Hao Tang
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - Cornelia Bohne
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
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25
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Kumar Y, Patil B, Khaligh A, Hadi SE, Uyar T, Tuncel D. Novel Supramolecular Photocatalyst Based on Conjugation of Cucurbit[7]uril to Non‐Metallated Porphyrin for Electrophotocatalytic Hydrogen Generation from Water Splitting. ChemCatChem 2019. [DOI: 10.1002/cctc.201900144] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yogesh Kumar
- Department of ChemistryBilkent University Ankara 06800 Turkey
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and NanotechnologyBilkent University Ankara 06800 Turkey
| | - Bhushan Patil
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and NanotechnologyBilkent University Ankara 06800 Turkey
| | - Aisan Khaligh
- Department of ChemistryBilkent University Ankara 06800 Turkey
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and NanotechnologyBilkent University Ankara 06800 Turkey
| | - Seyed E. Hadi
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and NanotechnologyBilkent University Ankara 06800 Turkey
| | - Tamer Uyar
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and NanotechnologyBilkent University Ankara 06800 Turkey
| | - Dönüs Tuncel
- Department of ChemistryBilkent University Ankara 06800 Turkey
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and NanotechnologyBilkent University Ankara 06800 Turkey
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26
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Ahmadian N, Amininasab M, Mehrnejad F. Paclitaxel interaction with cucurbit [7]uril and acyclic Cucurbit[4]uril nanocontainers: A computational approach. J Mol Graph Model 2019; 90:210-218. [PMID: 31103913 DOI: 10.1016/j.jmgm.2019.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/10/2019] [Accepted: 05/10/2019] [Indexed: 12/16/2022]
Abstract
Paclitaxel (PTX) is a natural terpenoid compound that has been broadly studied for its antitumor activities and widely used as a chemotherapy medication. The treatment efficacy of PTX is affected by its low aqueous solubility, thus causing a subject of extensive research. In recent years, synthetic molecular containers such as cucurbit[n]urils (CB[n]s) and their derivatives have been significantly developing because of their remarkable ability to bind hydrophobic and cationic drugs. Recent experimental studies have shown that acyclic CB[n]-type containers (aCB[n]s), as new derivatives of the family of CB[n]s, increase the solubility of insoluble pharmaceuticals. However, the nature by which the drug interacts with carriers remains largely unknown. In this study, molecular docking and molecular dynamics (MD) simulation were performed to understand how CB[7] and aCB[4] nanocontainers interact with PTX which affect its aqueous solubility. The results clarify how the flexibility of containers is influenced by their structure and how this affects their interactions with PTX. Our results reveal that although both CB[7] and aCB[4] are capable of binding to PTX, the affinity to aCB[4] is higher than that of CB[7]. It has also been shown that the binding to both CB[7] and aCB[4] is probably an entropy-driven process. This research supports the potential use of the cucurbit[n]urils and their acyclic derivatives as drug delivery systems.
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Affiliation(s)
- Nasim Ahmadian
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
| | - Mehriar Amininasab
- Department of Cell and Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Faramarz Mehrnejad
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
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27
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Zhang T, Liu Y, Hu B, Zhang C, Chen Y, Liu Y. A multi-color and white-light emissive cucurbituril/terpyridine/lanthanide supramolecular nanofiber. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.12.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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28
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Chen C, Liu F, Zhang X, Zhao Z, Liu S. Fabrication, characterization and adsorption properties of cucurbit[7]uril-functionalized polycaprolactone electrospun nanofibrous membranes. Beilstein J Org Chem 2019; 15:992-999. [PMID: 31164937 PMCID: PMC6541341 DOI: 10.3762/bjoc.15.97] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 04/18/2019] [Indexed: 12/13/2022] Open
Abstract
The fabrication of electrospun nanofibers comprising cucurbit[7]uril (CB[7]) and poly(ε-caprolactone) (PCL) is reported. Various techniques such as SEM, FTIR, XRD, DSC and TG were utilized to characterize the morphology, composition and properties of the nanofibers. Uniform bead-free electrospun nanofibers were obtained from PCL/CB[7] mixed solutions and the average fiber diameter of the nanofibers increases with the increase of CB[7] content. The nanofibers are composed of a physical mixture of PCL and CB[7], and CB[7] itself is present in the PCL fiber matrix in an uncomplexed state. The static adsorption behavior of the PCL/CB[7] nanofibers towards methylene blue (MB) was also preliminary investigated. The results indicate that the adsorption of MB onto the nanofibrous membranes fits the second-order kinetic model and Langmuir isotherm model.
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Affiliation(s)
- Changzhong Chen
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
- School of Chemistry, Biology and Environmental Engineering, Xiangnan University, Chenzhou 423000, China
| | - Fengbo Liu
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Xiongzhi Zhang
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Zhiyong Zhao
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Simin Liu
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
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29
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Özkan M, Keser Y, Hadi SE, Tuncel D. A [5]Rotaxane-Based Photosensitizer for Photodynamic Therapy. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900278] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Melis Özkan
- Institute of Materials Science and Nanotechnology; National Nanotechnology Research Center (UNAM); Bilkent University; 06800 Ankara Turkey
| | - Yağmur Keser
- Institute of Materials Science and Nanotechnology; National Nanotechnology Research Center (UNAM); Bilkent University; 06800 Ankara Turkey
| | - Seyed Ehsan Hadi
- Institute of Materials Science and Nanotechnology; National Nanotechnology Research Center (UNAM); Bilkent University; 06800 Ankara Turkey
| | - Dönüs Tuncel
- Institute of Materials Science and Nanotechnology; National Nanotechnology Research Center (UNAM); Bilkent University; 06800 Ankara Turkey
- Department of Chemistry; National Nanotechnology Research Center (UNAM); Bilkent University; 06800 Ankara Turkey
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30
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Chandrakumar PK, Dhiman R, Woodward CE, Iranmanesh H, Beves JE, Day AI. Tiara[ n]uril: A Glycoluril-Based Macrocyclic Host with Cationic Walls. J Org Chem 2019; 84:3826-3831. [PMID: 30813724 DOI: 10.1021/acs.joc.8b02913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The synthesis of new cationic macrocyclic host molecules is described. These macrocycles are comprised of glycoluril oligomers linked to two pyrazolium groups, which form part of a cationic wall facing into their cavities. A number of derivatives have been prepared with an objective to increasing the cavity size, and each new product has been fully characterized. Preliminary investigations of p Kas of Me10Tu[3]2+ and an interaction of L-glutamine indicate a potential for binding anionic molecules that also carry H-bond donor groups.
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Affiliation(s)
- Pradeep Kumar Chandrakumar
- Chemistry, School of PEMS , University of New South Wales Canberra, Australian Defence Force Academy , Canberra , Australian Capital Territory 2600 , Australia
| | - Rajni Dhiman
- Chemistry, School of PEMS , University of New South Wales Canberra, Australian Defence Force Academy , Canberra , Australian Capital Territory 2600 , Australia
| | - Clifford E Woodward
- Chemistry, School of PEMS , University of New South Wales Canberra, Australian Defence Force Academy , Canberra , Australian Capital Territory 2600 , Australia
| | - Hasti Iranmanesh
- School of Chemistry , UNSW Sydney , Sydney , 2052 New South Wales , Australia
| | - Jonathon E Beves
- School of Chemistry , UNSW Sydney , Sydney , 2052 New South Wales , Australia
| | - Anthony I Day
- Chemistry, School of PEMS , University of New South Wales Canberra, Australian Defence Force Academy , Canberra , Australian Capital Territory 2600 , Australia
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31
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Li H, Hu X, Zhao J, Koh K, Chen H. A label-free impedimetric sensor for the detection of an amphetamine-type derivative based on cucurbit[7]uril-mediated three-dimensional AuNPs. Electrochem commun 2019. [DOI: 10.1016/j.elecom.2019.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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32
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Romano VJ, Macartney DH. Cucurbit[7]uril host-guest complexations of aza-, diaza-, and oxa, azaspirocycloalkanes in aqueous solution. Supramol Chem 2018. [DOI: 10.1080/10610278.2018.1562192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Vanessa J. Romano
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada
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33
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Affiliation(s)
- Teresa L. Mako
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Joan M. Racicot
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Mindy Levine
- Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, Rhode Island 02881, United States
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34
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Samanta K, Sicking W, Schmuck C. Guanidiniocarbonyl Pyrrole Cation (GCP) - A New Guest for Cucurbit[8]uril: Application to the Synthesis of Supramolecular Polymers Based on CB[8]@2GCP Complex Formation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Krishnananda Samanta
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
| | - Wilhelm Sicking
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
| | - Carsten Schmuck
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
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35
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Zou H, Liu J, Li Y, Li X, Wang X. Cucurbit[8]uril-Based Polymers and Polymer Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802234. [PMID: 30168673 DOI: 10.1002/smll.201802234] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/23/2018] [Indexed: 06/08/2023]
Abstract
Cucurbit[8]uril (CB[8]) is unique and notable in the cucurbit[n]uril family, since it has a relatively large cavity and thus is able to simultaneously accommodate two guest molecules. Typically, an electron-deficient first guest and an electron-rich second guest can be bound by CB[8] to form a stable 1:1:1 heteroternary supramolecular complex. Additionally, two homo guests can also be strongly dimerized inside the cavity of CB[8] to form a 2:1 homoternary supramolecular complex. During the past decade, by combining polymer science and CB[8] host-guest chemistry, a variety of systems have been established to construct supramolecular polymers with polymer chains typically at the nanoscale/sub-microscale, and CB[8]-based micro/nanostructured polymer materials in the form of polymer networks and hydrogels, microcapsules, micelles, vesicles, and colloidal particles, normally in solution and occasionally on surfaces. This Review summarizes the noncovalent interactions and strategies used for the preparation of CB[8]-based polymers and polymer materials with a focus on the representative and latest developments, followed by a brief discussion of their characterization, properties, and applications.
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Affiliation(s)
- Hua Zou
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Jing Liu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Ying Li
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Xiaoyan Li
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Xia Wang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
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36
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37
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Koc A, Khan R, Tuncel D. “Clicked” Porphyrin‐Cucurbituril Conjugate: A New Multifunctional Supramolecular Assembly Based on Triglycosylated Porphyrin and Monopropargyloxycucurbit[7]uril. Chemistry 2018; 24:15550-15555. [DOI: 10.1002/chem.201804024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 08/28/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Ahmet Koc
- Department of Chemistry Bilkent University 06800 Ankara Turkey
| | - Rehan Khan
- Department of Chemistry Bilkent University 06800 Ankara Turkey
- UNAM-National Nanotechnology Research Center Institute of Materials Science and Nanotechnology Bilkent University Ankara 06800 Turkey
| | - Dönüs Tuncel
- Department of Chemistry Bilkent University 06800 Ankara Turkey
- UNAM-National Nanotechnology Research Center Institute of Materials Science and Nanotechnology Bilkent University Ankara 06800 Turkey
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38
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El Kurdi R, Patra D. Capping of supramolecular curcubit[7]uril facilitates formation of Au nanorods during pre-reduction by curcumin. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.05.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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39
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Li FZ, Mei L, Wu QY, Tian Y, Hu KQ, Ge YC, Liu N, Gibson JK, Chai ZF, Shi WQ. An Insight into Adaptive Deformation of Rigid Cucurbit[6]uril Host in Symmetric [2]Pseudorotaxanes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800964] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fei-ze Li
- Key Laboratory of Radiation Physics and Technology (Sichuan University); Ministry of Education; Institute of Nuclear Science and Technology; Sichuan University; 610064 Chengdu P. R. China
- Laboratory of Nuclear Energy Chemistry; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing P. R. China
| | - Lei Mei
- Laboratory of Nuclear Energy Chemistry; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing P. R. China
| | - Qun-yan Wu
- Laboratory of Nuclear Energy Chemistry; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing P. R. China
| | - Yin Tian
- Institute of High Energy Physics; Southwestern Institute of Physics; 610041 Chengdu P. R. China
| | - Kong-qiu Hu
- Laboratory of Nuclear Energy Chemistry; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing P. R. China
| | - Yun-chen Ge
- Laboratory of Nuclear Energy Chemistry; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing P. R. China
| | - Ning Liu
- Key Laboratory of Radiation Physics and Technology (Sichuan University); Ministry of Education; Institute of Nuclear Science and Technology; Sichuan University; 610064 Chengdu P. R. China
| | - John K. Gibson
- Chemical Sciences Division; Institute of High Energy Physics; Lawrence Berkeley National Laboratory; 94720 Berkeley California USA
| | - Zhi-fang Chai
- Laboratory of Nuclear Energy Chemistry; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing P. R. China
| | - Wei-qun Shi
- Laboratory of Nuclear Energy Chemistry; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing P. R. China
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40
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Zhang L, Zeng Y, Liu S, Liang F. Cucurbit[n]uril (n = 6, 7) Based Carbon-Gold Hybrids with Peroxidase-Like Activity. NANOMATERIALS 2018; 8:nano8050273. [PMID: 29695131 PMCID: PMC5977287 DOI: 10.3390/nano8050273] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 04/17/2018] [Accepted: 04/20/2018] [Indexed: 01/04/2023]
Abstract
Despite the combination of molecular recognition and local electric field enhancement endowing cucurbit[n]uril-capped metallic nanoparticles, indicating great potential in a variety of areas, prior work has paid little attention to carbonizing cucurbit[n]uril on the surface of gold nanoparticles, which may propose new carbon-gold hybrid materials with interesting applications. In this work, we developed a simple and cost-effective method to prepare carbon-gold hybrids by carbonizing cucurbit[n]uril modified gold nanoparticles. The as-prepared cucurbit[n]uril based carbon and carbon-gold hybrid materials have shown to possess peroxidase-like activity. All cucurbit[n]uril based nanomaterials exhibited high catalytic activity over a pH range 2–6 and more tolerant to high temperature (up to 60 °C) when compared to natural horseradish peroxidase.
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Affiliation(s)
- Liangfeng Zhang
- The State Key Laboratory of Refractories and Metallurgy, Coal Conversion and New Carbon Materials Hubei Key Laboratory, School of Chemistry & Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Yan Zeng
- The State Key Laboratory of Refractories and Metallurgy, Coal Conversion and New Carbon Materials Hubei Key Laboratory, School of Chemistry & Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Simin Liu
- The State Key Laboratory of Refractories and Metallurgy, Coal Conversion and New Carbon Materials Hubei Key Laboratory, School of Chemistry & Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Feng Liang
- The State Key Laboratory of Refractories and Metallurgy, Coal Conversion and New Carbon Materials Hubei Key Laboratory, School of Chemistry & Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
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41
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Wang B, Han J, Bender M, Hahn S, Seehafer K, Bunz UHF. Poly(para-phenyleneethynylene)-Sensor Arrays Discriminate 22 Different Teas. ACS Sens 2018; 3:504-511. [PMID: 29301398 DOI: 10.1021/acssensors.7b00943] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two nine-element sensor arrays, consisting of either three cationic poly(para-phenyleneethynylene)s (PPE) or the same PPEs complexed by cucurbituril[8] (CB[8]) at pH 3, 7, and 13 in water, discriminate 22 different teas and some of their small molecule components, including caffeine, theobromine and theophylline. Both arrays distinguish all of the black, green and oolong teas. The discrimination occurs by differential fluorescence modulation of the components of the sensor array and the treatment of the collected data by linear discriminant analysis. The signal is generated by either simple quenching (PPE only array) or the disruption of the PPE/CB[8] complex and quenching of the complex's or the PPEs' fluorescence through the polyphenolic colorants of the teas. Added amino acids, theobromine, theophylline, and caffeine give a fluorescence turn on of the PPE-CB[8] array, due to the disruption of the self-assembled complex, while for the PPE-alone tongue only caffeine, theobromine, and theophylline elicited useful fluorescence response. Both tongues discriminate different teas without any problem.
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Affiliation(s)
- Benhua Wang
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Jinsong Han
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Markus Bender
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Sebastian Hahn
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Kai Seehafer
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Uwe H. F. Bunz
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- CAM,
Centre for Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 225, 69120 Heidelberg, Germany
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42
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Hu C, Ma N, Li F, Fang Y, Liu Y, Zhao L, Qiao S, Li X, Jiang X, Li T, Shen F, Huang Y, Luo Q, Liu J. Cucurbit[8]uril-Based Giant Supramolecular Vesicles: Highly Stable, Versatile Carriers for Photoresponsive and Targeted Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4603-4613. [PMID: 29333854 DOI: 10.1021/acsami.8b00297] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Highly stable giant supramolecular vesicles were constructed by hierarchical self-assembly of cucurbit[8]uril (CB[8])-based supra-amphiphiles for photoresponsive and targeted intracellular drug delivery. These smart vesicles can encapsulate the model drugs with high loading efficiencies and then release them by manipulating photoswitchable CB[8] heteroternary complexation to regulate the formation and dissociation of supra-amphiphiles that cause dramatic morphological changes of the assemblies to achieve remote optically controlled drug delivery. More importantly, the confocal microscopy analysis, cellular uptake experiment, and cell viability assay have shown that the giant vesicles are able to maintain the structural integrity and stability within actual cellular environments and exhibit obvious advantages for intracellular drug delivery such as low toxicity, easy surface modification for tumor-targeting selectivity, and rapid internalization into different human cancer cell lines. A synergistic mechanism that integrates multiple pathways including energy-dependent endocytosis, macropinocytosis, cholesterol-dependent endocytosis, and microtubule-related endocytosis was determined to facilitate the internalization process. Moreover, cytotoxicity experiments and flow cytometric analysis have demonstrated that the doxorubicin hydrochloride-loaded vesicles exhibited a significant therapeutic effect for tumor cells upon UV light irradiation, which makes the photoresponsive system more promising for potential applications in pharmaceutically relevant fields.
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Affiliation(s)
- Cuihua Hu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Ningning Ma
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Fei Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Yu Fang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Yao Liu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Linlu Zhao
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Xiumei Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Xiaojia Jiang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Tiezhu Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Fangzhong Shen
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Yibing Huang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
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Akiba U, Minaki D, Anzai JI. Host-Guest Chemistry in Layer-by-Layer Assemblies Containing Calix[n]arenes and Cucurbit[n]urils: A Review. Polymers (Basel) 2018; 10:E130. [PMID: 30966166 PMCID: PMC6415183 DOI: 10.3390/polym10020130] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 01/25/2018] [Accepted: 01/26/2018] [Indexed: 01/24/2023] Open
Abstract
This review provides an overview of the synthesis of layer-by-layer (LbL) assemblies containing calix[n]arene (CA[n]) and cucurbit[n]uril (CB[n]) and their applications. LbL assemblies, such as thin films and microcapsules, containing selective binding sites have attracted considerable attention because of their potential use in separation and purification, sensors for ions and molecules, and controlled release. CA[n]-containing LbL films have been prepared using sulfonated CA[n] and cationic polymers to construct chemical sensors and molecular containers. CA[n]-containing LbL films deposited on the surface of a porous support are useful as ion-selective membranes that exhibit selective permeability to monovalent ions over multivalent ions. CB[n]s have been used as molecular glues for the construction of LbL films and microcapsules by taking advantage of the strong affinity of CB[n]s to aromatic compounds. CB[n]s form a stable 1:1:1 ternary complex with electron-rich and electron-deficient molecules in LbL films to stabilize the assemblies. CB[n]-containing LbL films can also be deposited on the surfaces of micro templates and nanopore membranes to construct microcapsules for controlled release and nanochannels for selective ion transport, respectively.
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Affiliation(s)
- Uichi Akiba
- Graduate School of Engineering and Science, Akita University, 1-1 Tegata Gakuen-machi, Akita 010-8502, Japan.
| | - Daichi Minaki
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Jun-Ichi Anzai
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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Benyettou F, Motte L, Traboulsi H, Mazher J, Pasricha R, Olsen JC, Trabolsi A, Guenin E. Palladium-Loaded Cucurbit[7]uril-Modified Iron Oxide Nanoparticles for C−C Cross-Coupling Reactions. Chemistry 2018; 24:2349-2353. [DOI: 10.1002/chem.201705082] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Indexed: 12/22/2022]
Affiliation(s)
| | - Laurence Motte
- Inserm, U1148, Laboratory for Vascular Translational Science; UFR SMBH; Université Paris 13, Sorbonne Paris Cité; 74 avenue M. Cachin 93017 Bobigny France
| | - Hassan Traboulsi
- Chemistry Department; College of Sciences; King Faisal University; Al Ahsa 31982 Kingdom of Saudi Arabia
| | - Javed Mazher
- Physics Department; College of Sciences; King Faisal University; Al Ahsa 31982 Kingdom of Saudi Arabia
| | | | - John-Carl Olsen
- Department of Chemistry; University of Rochester, RC Box 270216; Rochester NY 14627 United States of America
| | - Ali Trabolsi
- New York University; Abu Dhabi United Arab Emirates
| | - Erwan Guenin
- Sorbonne Universités; Université de Technologie de Compiègne; Integrated Transformations of Renewable Matter Laboratory (EA TIMR 4297 UTC-ESCOM); rue du Dr Schweitzer 60200 Compiègne France
- Inserm, U1148, Laboratory for Vascular Translational Science; UFR SMBH; Université Paris 13, Sorbonne Paris Cité; 74 avenue M. Cachin 93017 Bobigny France
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45
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Gao ZZ, Kan J, Tao Z, Bian B, Xiao X. A stimuli-responsive supramolecular assembly between inverted cucurbit[7]uril and hemicyanine dye. NEW J CHEM 2018. [DOI: 10.1039/c8nj03344g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of inverted curcurbit[7]uril (iQ[7]) on the binding mode of 2-(4-(dimethylamino)styryl)-1-methylpyridinium (DASPMI) was determined in this study.
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Affiliation(s)
- Zhong-Zheng Gao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Jinglan Kan
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
| | - Bing Bian
- College of Chemistry and Environmental Engineering, Shandong University of Science and Technology
- Qingdao 266510
- China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang 550025
- China
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Miskolczy Z, Biczók L, Lendvay G. Substituent effect on the dynamics of the inclusion complex formation between protoberberine alkaloids and cucurbit[7]uril. Phys Chem Chem Phys 2018; 20:15986-15994. [DOI: 10.1039/c8cp01845f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The dynamics and activation parameters of alkaloid entry into and exit from cucurbit[7]uril significantly depend on the substitution pattern.
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Affiliation(s)
- Zsombor Miskolczy
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences, Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
| | - László Biczók
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences, Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
| | - György Lendvay
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences, Hungarian Academy of Sciences
- 1519 Budapest
- Hungary
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48
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Wiemann M, Jonkheijm P. Stimuli-Responsive Cucurbit[n]uril-Mediated Host-Guest Complexes on Surfaces. Isr J Chem 2017. [DOI: 10.1002/ijch.201700109] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Maike Wiemann
- Bioinspired Molecular Engineering Laboratory of the MIRA Institute of Biomedical Technology and Technical Medicine and the Molecular Nanofabrication Group of the MESA Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Pascal Jonkheijm
- Bioinspired Molecular Engineering Laboratory of the MIRA Institute of Biomedical Technology and Technical Medicine and the Molecular Nanofabrication Group of the MESA Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
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49
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Koc A, Tuncel D. Supramolecular Assemblies of Cucurbiturils with Photoactive, π-conjugated Chromophores. Isr J Chem 2017. [DOI: 10.1002/ijch.201700114] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ahmet Koc
- Department of Chemistry; Bilkent University; Ankara 06800 Turkey
| | - Dönüs Tuncel
- Department of Chemistry; Bilkent University; Ankara 06800 Turkey
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology; Bilkent University; Ankara 06800 Turkey
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50
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Behera SK, Krishnamoorthy G. Perturbation of cationic equilibrium by cucurbit-7-uril. Phys Chem Chem Phys 2017; 19:19234-19242. [PMID: 28702607 DOI: 10.1039/c7cp03583g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The effect of cucurbit-7-uril (CB-7) on a cationic mixture with same charge has been investigated by studying monocationic mixtures of 2-(4'-N,N-dimethylaminophenyl)imidazo[4,5-b]pyridine (DMAPIP-b) and 2-(4'-N,N-dimethylaminophenyl)imidazo[4,5-c]pyridine (DMAPIP-c). The pKa of both the guests increases in CB-7. DMAPIP-b forms all three monocations in the ground and the excited states in aqueous as well as in CB-7 solution. However, CB-7 shifts the equilibrium more towards the less polar MC2 and MC3. On the other hand, DMAPIP-c exists only as MC1 and MC3 in aqueous solution, however, in CB-7 it exists not only as MC1 and MC3 but also as MC2 in CB-7 in the ground state. In the excited state, as in aqueous solution MC1 forms MC2 by biprotonic phototautomerism in CB-7. The association constants of monocations suggest a pyridyl nitrogen position dependence. All the MC-CB-7 complexes are optimized by density functional theory (DFT).
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Affiliation(s)
- Santosh Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahti-781039, India.
| | - G Krishnamoorthy
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahti-781039, India.
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