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Yin H, Guo W, Wang R, Doutch J, Li P, Tian Q, Zheng Z, Xie L, Feng Y. Self-Assembling Anti-Freezing Lamellar Nanostructures in Subzero Temperatures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309020. [PMID: 38368272 PMCID: PMC11077679 DOI: 10.1002/advs.202309020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/31/2024] [Indexed: 02/19/2024]
Abstract
The requirement for cryogenic supramolecular self-assembly of amphiphiles in subzero environments is a challenging topic. Here, the self-assembly of lamellar lyotropic liquid crystals (LLCs) are presented to a subzero temperature of -70 °C. These lamellar nanostructures are assembled from specifically tailored ultra-long-chain surfactant stearyl diethanolamine (SDA) in water/glycerol binary solvent. As the temperature falls below zero, LLCs with a liquid-crystalline Lα phase, a tilted Lβ phase, and a new folded configuration are obtained consecutively. A comprehensive experimental and computational study is performed to uncover the precise microstructure and formation mechanism. Both the ultra-long alkyl chain and head group of SDA play a crucial role in the formation of lamellar nanostructures. SDA head group is prone to forming hydrogen bonds with water, rather than glycerol. Glycerol cannot penetrate the lipid layer, which mixes with water arranging outside of the lipid bilayer, providing an ideal anti-freezing environment for SDA self-assembly. Based on these nanostructures and the ultra-low freezing point of the system, a series of novel cryogenic materials are created with potential applications in extremely cold environments. These findings would contribute to enriching the theory and research methodology of supramolecular self-assembly in extreme conditions and to developing novel anti-freezing materials.
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Affiliation(s)
- Hongyao Yin
- State Key Laboratory of Polymer Materials EngineeringPolymer Research InstituteSichuan UniversityChengdu610065P. R. China
| | - Weiluo Guo
- State Key Laboratory of Polymer Materials EngineeringPolymer Research InstituteSichuan UniversityChengdu610065P. R. China
| | - Runxi Wang
- Institute of New Energy and Low‐Carbon TechnologySichuan UniversityChengdu610065P. R. China
| | - James Doutch
- ISIS Neutron and Muon Source, Science and Technology Facilities Council, Rutherford Appleton LaboratoryHarwell CampusOXONDidcotOX11 0QXUK
| | - Peixun Li
- ISIS Neutron and Muon Source, Science and Technology Facilities Council, Rutherford Appleton LaboratoryHarwell CampusOXONDidcotOX11 0QXUK
| | - Qiang Tian
- State Key laboratory of Environment‐Friendly Energy Materials, School of Materials and ChemistrySouthwest University of Science and TechnologyMianyang621010P. R. China
| | - Zhuo Zheng
- State Key Laboratory of Polymer Materials EngineeringPolymer Research InstituteSichuan UniversityChengdu610065P. R. China
| | - Lingzhi Xie
- Institute of New Energy and Low‐Carbon TechnologySichuan UniversityChengdu610065P. R. China
| | - Yujun Feng
- State Key Laboratory of Polymer Materials EngineeringPolymer Research InstituteSichuan UniversityChengdu610065P. R. China
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2
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Hao X, Liu Z, Qin J, Jin X, Liu LZ, Zhai H, Yang W, Yan ZC, Feng Y. Quinoline-cored Poly(Aryl Ether) Dendritic Organogels with Multiple Stimuli-Responsive and Adsorptive Properties. Chem Asian J 2021; 17:e202101135. [PMID: 34729930 DOI: 10.1002/asia.202101135] [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: 09/30/2021] [Revised: 11/02/2021] [Indexed: 11/06/2022]
Abstract
Functional supramolecular gel materials have potential applications in sensors, optical switches, artificial antennae, drug delivery and so on. In this paper, quinoline-cored poly(aryl ether) dendritic organogelators were designed, synthesized and fully characterized. The gelation behaviour of the dendritic organogelator was tested in organic solvents, mixed solvents and ionic liquids. The dendron Q-G1 was found to be an efficient and versatile organogelator toward various apolar and polar organic solvents with the critical gelation concentrations (CGCs) approaching 1.2×10-2 mol/L, indicating one dendritic organogelator could immobilize 1.2×103 solvent molecules in the organogel network. Interestingly, these dendrons exhibited excellent gel formation in ionic liquids. Notably, these dendritic organogels were found to display multiple stimuli-responsive properties toward external stimuli including heat, ultrasound and shear stress, with a reversible sol-gel phase transition. In addition, the dendritic organogel could effectively adsorb heavy metals and organic dyes. The removal rate of Pb2+ was up to 20% and the adsorption rate for Rhodamine B was as high as 89%.
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Affiliation(s)
- Xiaoyu Hao
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, P. R. China
| | - Zhixiong Liu
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, P. R. China
| | - Jun Qin
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, P. R. China
| | - Xinyi Jin
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, P. R. China
| | - Li-Zhen Liu
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, P. R. China
| | - Hong Zhai
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, P. R. China
| | - Weifa Yang
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, P. R. China
| | - Zhi-Chao Yan
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, P. R. China
| | - Yu Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
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Chen Y, Yin L, Ge F, Tong X, Zhang H, Zhao Y. Liquid Crystalline Hydrogel with Thermally Induced Reversible Shape Change and Water-Triggered Shape Memory. Macromol Rapid Commun 2021; 42:e2100495. [PMID: 34633718 DOI: 10.1002/marc.202100495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/05/2021] [Indexed: 12/14/2022]
Abstract
Liquid crystalline hydrogel (LCH) is synthesized through simultaneous polymerization of hydrophobic and hydrophilic monomers in an oil-in-water emulsion, resulting in phase-separated liquid crystalline network (LCN) embedded in a hydrogel matrix. This material features some properties and functions of both LCN and hydrogel, displaying stable LC phase over repeated hydration and dehydration cycles of the hydrogel matrix. Using mechanically stretched and photocrosslinked LCH, the thermally induced LC-isotropic phase transition in LCN domains can be translated into reversible macroscopic deformation of the LCH. Moreover, the LCH exhibits water absorption-controlled shape memory effect.
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Affiliation(s)
- Yiming Chen
- Département de chimie, Université de Sherbrooke, Sherbrooke, J1K 2R1, Canada
| | - Lu Yin
- Département de chimie, Université de Sherbrooke, Sherbrooke, J1K 2R1, Canada
| | - Feijie Ge
- Département de chimie, Université de Sherbrooke, Sherbrooke, J1K 2R1, Canada
| | - Xia Tong
- Département de chimie, Université de Sherbrooke, Sherbrooke, J1K 2R1, Canada
| | - Hongji Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Yue Zhao
- Département de chimie, Université de Sherbrooke, Sherbrooke, J1K 2R1, Canada
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4
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Wang Y, McKinstry AH, Burke KA. Main-Chain Liquid Crystalline Hydrogels that Support 3D Stem Cell Culture. Biomacromolecules 2020; 21:2365-2375. [DOI: 10.1021/acs.biomac.0c00316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yongjian Wang
- Chemical and Biomolecular Engineering, University of Connecticut, 191 Auditorium Road Unit 3222, Storrs, Connecticut 06269-3222, United States
| | - Amy H. McKinstry
- Chemical and Biomolecular Engineering, University of Connecticut, 191 Auditorium Road Unit 3222, Storrs, Connecticut 06269-3222, United States
| | - Kelly A. Burke
- Chemical and Biomolecular Engineering, University of Connecticut, 191 Auditorium Road Unit 3222, Storrs, Connecticut 06269-3222, United States
- Polymer Program, Institute of Materials Science, University of Connecticut, 97 North Eagleville Road Unit 3136, Storrs, Connecticut 06269-3136, United States
- Biomedical Engineering, University of Connecticut, 260 Glenbrook Road Unit 3247, Storrs, Connecticut 06269-3247, United States
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5
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Tsuge A, Matsumoto S, Hashimura D, Araki K. Development of novel aromatic ambidextrous gelators based on molecular design. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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6
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Sapra R, Verma RP, Maurya GP, Dhawan S, Babu J, Haridas V. Designer Peptide and Protein Dendrimers: A Cross-Sectional Analysis. Chem Rev 2019; 119:11391-11441. [PMID: 31556597 DOI: 10.1021/acs.chemrev.9b00153] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Dendrimers have attracted immense interest in science and technology due to their unique chemical structure that offers a myriad of opportunities for researchers. Dendritic design allows us to present peptides in a branched three-dimensional fashion that eventually leads to a globular shape, thus mimicking globular proteins. Peptide dendrimers, unlike other classes of dendrimers, have immense applications in biomedical research due to their biological origin. The diversity of potential building blocks and innumerable possibilities for design, along with the fact that the area is relatively underexplored, make peptide dendrimers sought-after candidates for various applications. This review summarizes the stepwise evolution of peptidic dendrimers along with their multifaceted applications in various fields. Further, the introduction of biomacromolecules such as proteins to a dendritic scaffold, resulting in complex macromolecules with discrete molecular weights, is an altogether new addition to the area of organic chemistry. The synthesis of highly complex and fully folded biomacromolecules on a dendritic scaffold requires expertise in synthetic organic chemistry and biology. Presently, there are only a handful of examples of protein dendrimers; we believe that these limited examples will fuel further research in this area.
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Affiliation(s)
- Rachit Sapra
- Department of Chemistry , Indian Institute of Technology Delhi , Hauz Khas , New Delhi 110016 , India
| | - Ram P Verma
- Department of Chemistry , Indian Institute of Technology Delhi , Hauz Khas , New Delhi 110016 , India
| | - Govind P Maurya
- Department of Chemistry , Indian Institute of Technology Delhi , Hauz Khas , New Delhi 110016 , India
| | - Sameer Dhawan
- Department of Chemistry , Indian Institute of Technology Delhi , Hauz Khas , New Delhi 110016 , India
| | - Jisha Babu
- Department of Chemistry , Indian Institute of Technology Delhi , Hauz Khas , New Delhi 110016 , India
| | - V Haridas
- Department of Chemistry , Indian Institute of Technology Delhi , Hauz Khas , New Delhi 110016 , India
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7
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Nandi M, Banerjee S, De P. Stearoyl-appended pendant amino acid-based hyperbranched polymers for selective gelation of oil from oil/water mixtures. Polym Chem 2019. [DOI: 10.1039/c9py00105k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stearic acid-appended pendant amino acid-based poly(methacrylate) hyperbranched polymers were developed for the phase-selective organogelation of crude oil from a binary mixture of oil/water.
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Affiliation(s)
- Mridula Nandi
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246, Nadia
- India
| | - Soham Banerjee
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246, Nadia
- India
| | - Priyadarsi De
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246, Nadia
- India
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8
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Huang L, Wu C, Zhang L, Ma Z, Jia X. A Mechanochromic and Photochromic Dual-Responsive Co-assembly with Multicolored Switch: A Peptide-Based Dendron Strategy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:34475-34484. [PMID: 30212178 DOI: 10.1021/acsami.8b10933] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this contribution, we report a unique co-assembly composed of pyrene and spiropyran that were linked separately at the focal point of the same peptide-based dendron (Phe-Glu), in which the dendrons offer driving forces for the coaggregation. A series of co-assemblies with different weight ratios (Py-Phe-Glu/SP-Phe-Glu) were prepared and the morphology could be tuned. It is found that the resulting stable co-assembled organogel is double switchable triggered by light and heat. TEM revealed that, in the xerogel, Py-Phe-Glu formed rigid rod nanofibers with large diameters and acted as a rigid sketelon where the gracile interwoven fibrous structure of SP-Phe-Glu grew. More interestingly, the original powder of the co-assembled xerogel (1.0 mg/0.1 mg) not only displayed a sequential high-contrast tricolored switch from dark blue to bright cyan and to red under external force but also presented multistate accessible photochromic properties. Such mechanochromic and photochromic behaviors of the xerogel are mainly due to the transition of different excimers of pyrene and the force/photoinduced ring-opening reaction of spiropyran. It is rarely reported that self-assembled soft materials achieve mechanochromic and photochromic dual-responsive behaviors with a high-contrast multicolored switch. We believe the co-assembly strategy based on polypeptide dendrons can be extended to other systems for establishing novel intelligent fluorescent materials.
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Affiliation(s)
- Lili Huang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Chenyang Wu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Linghao Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Zhiyong Ma
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Xinru Jia
- Beijing National Laboratory for Molecular Sciences, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
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9
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Feng Y, Chen H, Liu ZX, He YM, Fan QH. A Pronounced Halogen Effect on the Organogelation Properties of Peripherally Halogen Functionalized Poly(benzyl ether) Dendrons. Chemistry 2016; 22:4980-90. [DOI: 10.1002/chem.201504598] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Yu Feng
- Beijing National Laboratory for Molecular Sciences and CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry; Chinese Academy of Sciences (CAS); Beijing 100190 P.R. China
| | - Hui Chen
- Beijing National Laboratory for Molecular Sciences and CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry; Chinese Academy of Sciences (CAS); Beijing 100190 P.R. China
| | - Zhi-Xiong Liu
- Beijing National Laboratory for Molecular Sciences and CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry; Chinese Academy of Sciences (CAS); Beijing 100190 P.R. China
| | - Yan-Mei He
- Beijing National Laboratory for Molecular Sciences and CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry; Chinese Academy of Sciences (CAS); Beijing 100190 P.R. China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences and CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry; Chinese Academy of Sciences (CAS); Beijing 100190 P.R. China
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10
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Li L, Zhang Q, Huo H, Zhou J, Li L. Glutamic acid derivatives as gelators for electrolyte of lithium ion batteries. RSC Adv 2016. [DOI: 10.1039/c6ra18638f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Organic gelators were synthesized to prepare gel electrolyte with wider electrochemical stable window.
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Affiliation(s)
- Liping Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Qiuxia Zhang
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Hong Huo
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Jianjun Zhou
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Lin Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
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12
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Chen H, Feng Y, Deng GJ, Liu ZX, He YM, Fan QH. Fluorescent Dendritic Organogels Based on 2-(2′-Hydroxyphenyl)benzoxazole: Emission Enhancement and Multiple Stimuli-Responsive Properties. Chemistry 2015; 21:11018-28. [DOI: 10.1002/chem.201500849] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Indexed: 12/27/2022]
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13
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Bolchi C, Valoti E, Fumagalli L, Straniero V, Ruggeri P, Pallavicini M. Enantiomerically Pure Dibenzyl Esters of l-Aspartic and l-Glutamic Acid. Org Process Res Dev 2015. [DOI: 10.1021/acs.oprd.5b00134] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milan, Italy
| | - Ermanno Valoti
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milan, Italy
| | - Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milan, Italy
| | - Valentina Straniero
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milan, Italy
| | - Paola Ruggeri
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milan, Italy
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milan, Italy
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14
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Feng Y, Liu ZX, Chen H, Yan ZC, He YM, Liu CY, Fan QH. A Systematic Study of Peripherally Multiple Aromatic Ester-Functionalized Poly(benzyl ether) Dendrons for the Fabrication of Organogels: Structure-Property Relationships and Thixotropic Property. Chemistry 2014; 20:7069-82. [DOI: 10.1002/chem.201400157] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Indexed: 01/04/2023]
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15
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Feng Y, He YM, Fan QH. Supramolecular Organogels Based on Dendrons and Dendrimers. Chem Asian J 2014; 9:1724-50. [DOI: 10.1002/asia.201400043] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Indexed: 01/04/2023]
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16
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Teng M, Wang Z, Ma Z, Chen X, Jia X. Mechanochromic and photochromic dual-responsive properties of an amino acid based molecule in polymorphic phase. RSC Adv 2014. [DOI: 10.1039/c4ra00895b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Rajamalli P, Malakar P, Atta S, Prasad E. Metal induced gelation from pyridine cored poly(aryl ether) dendrons with in situ synthesis and stabilization of hybrid hydrogel composites. Chem Commun (Camb) 2014; 50:11023-5. [DOI: 10.1039/c4cc04231j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Metal induced gel formation from pyridine cored poly(aryl ether) dendrons has been achieved. In addition, the gel is successfully utilized for in situ synthesis and stabilization of silver nanoparticles (AgNPs), which form an unprecedented, well-organized arrangement on the nanofibers.
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Affiliation(s)
- P. Rajamalli
- Department of Chemistry
- Indian Institute of Technology Madras (IITM)
- Chennai, India
| | - Partha Malakar
- Department of Chemistry
- Indian Institute of Technology Madras (IITM)
- Chennai, India
| | - Supriya Atta
- Department of Chemistry
- Indian Institute of Technology Madras (IITM)
- Chennai, India
| | - Edamana Prasad
- Department of Chemistry
- Indian Institute of Technology Madras (IITM)
- Chennai, India
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18
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Liu ZX, Feng Y, Zhao ZY, Yan ZC, He YM, Luo XJ, Liu CY, Fan QH. A New Class of Dendritic Metallogels with Multiple Stimuli-Responsiveness and as Templates for the In Situ Synthesis of Silver Nanoparticles. Chemistry 2013; 20:533-41. [DOI: 10.1002/chem.201302780] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Indexed: 11/05/2022]
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19
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Bhattacharjee S, Datta S, Bhattacharya S. Remarkable Regioisomer Control in the Hydrogel Formation from a Two‐Component Mixture of Pyridine‐End Oligo(
p
‐phenylenevinylene)s and
N
‐Decanoyl‐
L
‐alanine. Chemistry 2013; 19:16672-81. [DOI: 10.1002/chem.201302100] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Revised: 09/09/2013] [Indexed: 12/24/2022]
Affiliation(s)
- Subham Bhattacharjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, Karnataka 560012 (India), Fax: (+91) 80‐23600529
| | - Sougata Datta
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, Karnataka 560012 (India), Fax: (+91) 80‐23600529
| | - Santanu Bhattacharya
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, Karnataka 560012 (India), Fax: (+91) 80‐23600529
- Honorary Professor, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, Jakkur 560064 (India)
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20
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Chang X, Dong CM. Synthesis of Hyperbranched Polypeptide and PEO Block Copolymer by Consecutive Thiol-Yne Chemistry. Biomacromolecules 2013; 14:3329-37. [DOI: 10.1021/bm400951m] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xiao Chang
- Department of Polymer Science & Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Chang-Ming Dong
- Department of Polymer Science & Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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21
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Rajamalli P, Prasad E. Tunable morphology and mesophase formation by naphthalene-containing poly(aryl ether) dendron-based low-molecular-weight fluorescent gels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:1609-1617. [PMID: 23297831 DOI: 10.1021/la304230m] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Novel poly(aryl ether) dendron-based low-molecular-weight organogelaters (LMWG) containing naphthalene units at the core have been synthesized, and the self-assembly of the system has been examined in a variety of solvents and solvent mixtures. The compounds readily form gels with attractive critical gel concentration values associated with gelation-induced enhanced emission (GIEE). In addition to the remarkable properties of the previously reported anthracene and pyrene analogues (Rajamalli, P.; Prasad, E. Org. Lett.2011, 13, 3714 and Rajamalli, P.; Prasad, E. Soft Matter2012, 8, 8896), the self-assembled systems exhibit distinctly different structure-property relationships. Unlike the reported ones, the present system forms sheetlike morphology in nonpolar solvent mixtures, giant vesicles in polar solvent mixtures, and lamellar or hexagonal columnar phases in single solvents. The unique properties of the self-assembled systems, which were analyzed through electron microscopic (SEM, TEM, AFM) and spectroscopic techniques (POM, fluorescence), are attributed to the replacement of anthracene/pyrene units by naphthalene units. The present work unravels the subtle role of minute structural change in altering the properties of LMWGs based on poly(aryl ether) dendrons.
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Affiliation(s)
- P Rajamalli
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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22
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Liu J, Feng Y, Liu ZX, Yan ZC, He YM, Liu CY, Fan QH. N-Boc-Protected 1,2-Diphenylethylenediamine-Based Dendritic Organogels with Multiple-Stimulus-Responsive Properties. Chem Asian J 2013; 8:572-81. [DOI: 10.1002/asia.201201019] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Indexed: 11/08/2022]
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23
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Yang H, Xu J, Pispas S, Zhang G. One-step synthesis of hyperbranched biodegradable polymer. RSC Adv 2013. [DOI: 10.1039/c3ra23422c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Rajamalli P, Sheet PS, Prasad E. Glucose-cored poly(aryl ether) dendron based low molecular weight gels: pH controlled morphology and hybrid hydrogel formation. Chem Commun (Camb) 2013; 49:6758-60. [DOI: 10.1039/c3cc43391a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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25
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Poly(benzyl ether) dendrons without conventional gelation motifs as a new kind of effective organogelators. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s11434-012-5479-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Das UK, Dastidar P. Supramolecular Chirality in Organo-, Hydro-, and Metallogels Derived from Bis-amides ofL-(+)-Tartaric Acid: Formation of Highly Aligned 1D Silica Fibers and Evidence of 5-c Net SnS Topology in a Metallogel Network. Chemistry 2012; 18:13079-90. [DOI: 10.1002/chem.201200871] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 06/25/2012] [Indexed: 11/08/2022]
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27
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Li W, Zhang X, Wang J, Qiao X, Liu K, Zhang A. Peptidic molecular brushes with enhanced chirality. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26208] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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28
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Hayashida O, Nakashima T. Synthesis of Peptide-Based Cyclophane Oligomers Having Multivalently Enhanced Guest-Binding Affinity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2012. [DOI: 10.1246/bcsj.20120076] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Osamu Hayashida
- Department of Chemistry, Faculty of Science, Fukuoka University
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29
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Teng MJ, Jia XR, Yang S, Chen XF, Wei Y. Reversible tuning luminescent color and emission intensity: a dipeptide-based light-emitting material. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:1255-61. [PMID: 22298129 DOI: 10.1002/adma.201104592] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 12/27/2011] [Indexed: 05/05/2023]
Abstract
A smart luminescent material whose emission color and emission intensity can be separately modulated by external force is demonstrated. The rational manipulation of rich noncovalent interactions and fluorophore packing style promotes an in-depth understanding between supramolecular structure and photophysical property and offers an effective strategy to modulate the light-emitting property in a predicative way.
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Affiliation(s)
- Ming-Jun Teng
- Beijing National Laboratory for Molecular Sciences and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
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30
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Chow HF, Lau KN, Chan MC. Click-dendronized poly(amide-triazole)s--effect of dendron size and polymer backbone symmetry on self-assembling and gelation properties. Chemistry 2011; 17:8395-403. [PMID: 21681842 DOI: 10.1002/chem.201101045] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Indexed: 11/10/2022]
Abstract
Nine dendronized poly(amide-triazole)s 2-Gm Gn (m=1-3, n=1-3), were prepared by the 1:1 copolymerization between AA-type dendritic diazides 4-Gm (m=1-3) and BB-type dendritic diacetylenes 5-Gn (n=1-3) under the copper(I)-mediated click coupling conditions. The degree of polymerization value of the polymers was found to range from 15-50, and decreased with increasing size of the dendron, suggesting steric hindrance had a retardation role on the copolymerization efficiency. Based on FT-IR and (1)H NMR studies, it was found that significantly strong, interchain hydrogen bonding between the amide units was present in the solution state after copolymerization, whereas the monomers 4-Gm and 5-Gn were devoid of any intermolecular hydrogen-bonding interaction. Hence a positive allosteric hydrogen-bonding effect was observed after polymerization, and could be rationalized by the zip effect. The strength of the interchain association in polymers 2-Gm Gn was found to decrease with increasing size of the dendron (i.e., 2-G1 G1>2-G1 G2>2-G2 G1≈2-G2 G2>2-G1 G3≈2-G3 G1>2-G2 G3≈2-G3 G2>2-G3 G3). Among the nine polymers, only 2-G1 G2 and 2-G2 G1 were good organogelators for aromatic solvents, while the 2-G2 G2 polymer, bearing the closest structural resemblance to the previously reported organogelator 1-G2 prepared from the polymerization of AB-type monomers, was devoid of gelating power. Careful analysis of structures of the present polymer series 2-Gm Gn and the previously reported series 1-Gn suggested that the polymer backbone symmetry played a subtle role in controlling their self-assembling and gelating properties.
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Affiliation(s)
- Hak-Fun Chow
- Department of Chemistry, The Chinese University of Hong Kong, Shatin NT, Hong Kong.
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31
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Ionic liquid crystalline phases in 3-hexadecylimidazolium bromide and binary mixtures with 1-decanol. J Colloid Interface Sci 2011; 359:474-80. [DOI: 10.1016/j.jcis.2011.04.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 03/31/2011] [Accepted: 04/07/2011] [Indexed: 11/23/2022]
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32
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Rajamalli P, Prasad E. Low Molecular Weight Fluorescent Organogel for Fluoride Ion Detection. Org Lett 2011; 13:3714-7. [DOI: 10.1021/ol201325j] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- P. Rajamalli
- Department of Chemistry, Indian Institute of Technology Madras (IITM), Chennai 600 036, India
| | - Edamana Prasad
- Department of Chemistry, Indian Institute of Technology Madras (IITM), Chennai 600 036, India
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33
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Kuang G, Teng M, Jia X, Chen E, Wei Y. Polymorphism of Amino Acid‐Based Dendrons: From Organogels to Microcrystals. Chem Asian J 2011; 6:1163-70. [DOI: 10.1002/asia.201000529] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Indexed: 11/05/2022]
Affiliation(s)
- Gui‐Chao Kuang
- Beijing National Laboratory for Molecular Sciences and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 (China), Fax: (+86) 10‐6275‐1708
| | - Ming‐Jun Teng
- Beijing National Laboratory for Molecular Sciences and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 (China), Fax: (+86) 10‐6275‐1708
| | - Xin‐Ru Jia
- Beijing National Laboratory for Molecular Sciences and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 (China), Fax: (+86) 10‐6275‐1708
| | - Er‐Qiang Chen
- Beijing National Laboratory for Molecular Sciences and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 (China), Fax: (+86) 10‐6275‐1708
| | - Yen Wei
- Department of Chemistry, Tsinghua University, Beijing, 100084 (China)
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34
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Zhang Z, Yang M, Hu C, Liu B, Hu M, Zhang X, Wang W, Zhou Y, Wang H. Correlation between gel-forming ability, supramolecular aggregates and main-chain conformation of dendronized polymer gelators. NEW J CHEM 2011. [DOI: 10.1039/c0nj00371a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Rajamalli P, Prasad E. Luminescent micro and nanogel formation from AB3 type poly(aryl ether) dendron derivatives without conventional multi-interactive gelation motifs. NEW J CHEM 2011. [DOI: 10.1039/c1nj20136k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Xu D, Liu X, Lu R, Xue P, Zhang X, Zhou H, Jia J. New dendritic gelator bearing carbazole in each branching unit: selected response to fluoride ion in gel phase. Org Biomol Chem 2011; 9:1523-8. [DOI: 10.1039/c0ob00786b] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Teng M, Jia X, Chen X, Ma Z, Wei Y. Mechanochromic luminescent property of a polypeptide-based dendron. Chem Commun (Camb) 2011; 47:6078-80. [DOI: 10.1039/c1cc10873e] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Liu W, Dong CM. Versatile Strategy for the Synthesis of Hyperbranched Poly(ε-caprolactone)s and Polypseudorotaxanes Thereof. Macromolecules 2010. [DOI: 10.1021/ma101730m] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Wei Liu
- Department of Polymer Science & Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Chang-Ming Dong
- Department of Polymer Science & Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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39
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Li WS, Teng MJ, Jia XR, Wei Y. Continuous intra- and intermolecular energy transfer in light-harvesting gels from natural amino acids-based dendrons. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Liquid crystalline phases of 1,2-dimethyl-3-hexadecylimidazolium bromide and binary mixtures with water. J Colloid Interface Sci 2010; 349:224-9. [DOI: 10.1016/j.jcis.2010.05.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Revised: 05/11/2010] [Accepted: 05/11/2010] [Indexed: 11/21/2022]
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41
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Effects of glutamic acid shelled PAMAM dendrimers on the crystallization of calcium phosphate in diffusion systems. Polym Bull (Berl) 2010. [DOI: 10.1007/s00289-010-0350-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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42
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SYNTHESIS AND CHARACTERIZATION OF PEPTIDE DENDRONS WITH GLY-GLU AS BUILDING BLOCKS. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2010.00707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Seo M, Kim JH, Kim J, Park N, Park J, Kim SY. Self-Association of Bis-Dendritic Organogelators: The Effect of Dendritic Architecture on Multivalent Cooperative Interactions. Chemistry 2010; 16:2427-41. [DOI: 10.1002/chem.200902575] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Li C, He J, Liu J, Yu Z, Zhang Q, He C, Hong W. Self-assembly of lyotropic liquid crystal phases in ternary systems of 1,2-dimethyl-3-hexadecylimidazolium bromide/1-decanol/water. J Colloid Interface Sci 2010; 342:354-60. [DOI: 10.1016/j.jcis.2009.10.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Revised: 10/26/2009] [Accepted: 10/27/2009] [Indexed: 11/27/2022]
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45
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You Y, Chen Y, Hua C, Dong CM. Synthesis and thermoreversible gelation of dendron-like polypeptide/linear poly(ε-caprolactone)/dendron-like polypeptide triblock copolymers. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.23834] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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46
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Palui G, Garai A, Nanda J, Nandi AK, Banerjee A. Organogels from Different Self-Assembling New Dendritic Peptides: Morphology, Reheology, and Structural Investigations. J Phys Chem B 2009; 114:1249-56. [DOI: 10.1021/jp908011v] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Goutam Palui
- Department of Biological Chemistry and Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Ashesh Garai
- Department of Biological Chemistry and Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Jayanta Nanda
- Department of Biological Chemistry and Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Arun Kumar Nandi
- Department of Biological Chemistry and Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Arindam Banerjee
- Department of Biological Chemistry and Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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47
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Rosen BM, Wilson CJ, Wilson DA, Peterca M, Imam MR, Percec V. Dendron-Mediated Self-Assembly, Disassembly, and Self-Organization of Complex Systems. Chem Rev 2009; 109:6275-540. [DOI: 10.1021/cr900157q] [Citation(s) in RCA: 1066] [Impact Index Per Article: 71.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Brad M. Rosen
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Christopher J. Wilson
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Daniela A. Wilson
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Mohammad R. Imam
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
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48
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Duan P, Liu M. Design and self-assembly of L-glutamate-based aromatic dendrons as ambidextrous gelators of water and organic solvents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:8706-8713. [PMID: 20050047 DOI: 10.1021/la8043335] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A series of L-glutamate-based dendrons containing aromatic cores ranging from phenyl to naphthyl to anthryl were synthesized, and their self-assembly in organic solvents as well as in water was investigated. It was found that all of these dendrons formed organogels with hexane and simultaneously formed the hydrogels with water, thus exhibiting ambidextrous properties. Nanofiber structures are essentially formed in organogels and hydrogels, and some nanostrips are formed in some of the hydrogels. During gel formation, both hydrogen bonds between the amide groups and the pi-pi stacking between the aromatic rings played a predominant role in forming the ID nanostructures. Both the hydrogels and the organogels containing naphthyl and anthryl groups showed fluorescence emission. In comparison with the corresponding compounds in solution, the naphthyl-containing dendrons showed a strong enhancement of fluorescence in the gel. In the case of anthryl-containing dendrons, fluorescence enhancement was observed for the derivative with anthryl substituted at the 9 position, whereas a decrease was observed for the gels of the 2-substituted derivative. Although the chirality of L-glutamate could not be transferred to the aromatic chromophores in solution, it was transferred to the chromophores in gels as a result of the self-assembly and strong pi-pi interaction of the gelators. On the basis of the properties of the organogels and hydrogels, a thermally driven chiroptical switch was proposed. That is, the chirality disappeared when the gel was heated to solution, whereas it returned when cooled to a gel. The process can be repeated many times.
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Affiliation(s)
- Pengfei Duan
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Colloid and Interface Science, Institute of Chemistry, CAS, Beijing 100190, PR China
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49
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Feng Y, Liu ZT, Liu J, He YM, Zheng QY, Fan QH. Peripherally Dimethyl Isophthalate-Functionalized Poly(benzyl ether) Dendrons: A New Kind of Unprecedented Highly Efficient Organogelators. J Am Chem Soc 2009; 131:7950-1. [DOI: 10.1021/ja901501j] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry and Graduate School, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Zi-Tong Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry and Graduate School, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Ji Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry and Graduate School, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yan-Mei He
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry and Graduate School, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qi-Yu Zheng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry and Graduate School, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry and Graduate School, the Chinese Academy of Sciences, Beijing 100190, P. R. China
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50
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Yang M, Wang W, Lieberwirth I, Wegner G. Multiple H-Bonds Directed Self-Assembly of an Amphiphilic and Plate-Like Codendrimer with Janus Faces at Water−Air Interface. J Am Chem Soc 2009; 131:6283-92. [DOI: 10.1021/ja900739e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miao Yang
- The Key Laboratory of Functional Polymer Materials of Ministry of Education and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China, and Max-Planck-Institute for Polymer Research, Ackermannweg 10, Postfach 3148, D-55128, Mainz, Germany
| | - Wei Wang
- The Key Laboratory of Functional Polymer Materials of Ministry of Education and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China, and Max-Planck-Institute for Polymer Research, Ackermannweg 10, Postfach 3148, D-55128, Mainz, Germany
| | - Ingo Lieberwirth
- The Key Laboratory of Functional Polymer Materials of Ministry of Education and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China, and Max-Planck-Institute for Polymer Research, Ackermannweg 10, Postfach 3148, D-55128, Mainz, Germany
| | - Gerhard Wegner
- The Key Laboratory of Functional Polymer Materials of Ministry of Education and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China, and Max-Planck-Institute for Polymer Research, Ackermannweg 10, Postfach 3148, D-55128, Mainz, Germany
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