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Ohsedo Y. Development of Thixotropic Molecular Oleogels Comprising Alkylanilide Gelators by Using a Mixing Strategy. Gels 2023; 9:717. [PMID: 37754398 PMCID: PMC10529973 DOI: 10.3390/gels9090717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/29/2023] [Accepted: 09/03/2023] [Indexed: 09/28/2023] Open
Abstract
Molecular oleogels have the potential to be used as materials in healthcare applications. However, their design and synthesis are complex, thus requiring simple and effective methods for their preparation. This paper reports on alkylanilides that are low molecular-weight organogelators, which when appropriately mixed with different alkyl chain lengths could result in the formation of mixed molecular gels that exhibit excellent gel-forming ability and mechanical properties. In addition, the single and mixed molecular organogel systems were found to be applicable as single and mixed molecular oleogel systems capable of gelling oils such as olive oil and squalane. This has been found to be true, especially in molecular oleogel systems consisting of squalane, which is used as solvents in healthcare. The mixed squalene-molecular oleogel systems showed an increase in the critical (minimum) gelation concentration from 1.0 to 0.1 wt.% in the single system and an improvement in the thixotropic behavior recovery time. The thixotropic behavior of the molecular oleogels in the mixed system was quantitatively evaluated through dynamic viscoelasticity measurements; however, it was not observed for the single-system molecular oleogels. Scanning electron microscopy of the xerogels suggested that this behavior is related to the qualitative improvement of the network owing to the refinement of the mesh structure. These mixed molecular oleogels, composed of alkylanilides displaying such thixotropic behavior, could be used as candidates for ointment-base materials in the healthcare field.
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Affiliation(s)
- Yutaka Ohsedo
- Division of Engineering, Faculty of Engineering, Nara Women's University, Kitauoyahigashi-Machi, Nara 630-8506, Japan
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2
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Gao A, Wang Q, Wu H, Zhao JW, Cao X. Research progress on AIE cyanostilbene-based self-assembly gels: Design, regulation and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Cao X, Gao A, Hou JT, Yi T. Fluorescent supramolecular self-assembly gels and their application as sensors: A review. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213792] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Zhang T, Chen F, Zhang C, Che X, Li W, Bai B, Wang H, Li M. Multistimuli-Responsive Fluorescent Organogelator Based on Triphenylamine-Substituted Acylhydrazone Derivative. ACS OMEGA 2020; 5:5675-5683. [PMID: 32226844 PMCID: PMC7097906 DOI: 10.1021/acsomega.9b03534] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 02/28/2020] [Indexed: 06/10/2023]
Abstract
A new triphenylamine-based acylhydrazone derivative (TPAH-B8) was synthesized. TPAH-B8 could form organogels in cyclohexane through ultrasonic treatment. A typical gelation-induced fluorescence enhancement property was observed, which was attributed to the formation of J-aggregate in the gel state. More interestingly, TPAH-B8 exhibited multistimuli responsive behaviors. First, TPAH-B8 showed a solvatochromic effect, with the emission color changing from blue to cyan with the change in solvent from nonpolar cyclohexane to polar dimethyl sulfoxide (DMSO). Second, TPAH-B8 showed a reversible mechanofluorochromism. The xerogel of TPAH-B8 emitted a blue fluorescence, while the fluorescence color changed to cyan after grinding. The cyan and blue colors could be repeated with the treatment of grinding and annealing, which was explored and ascribed to the transformation between crystalline and amorphous states. Third, TPAH-B8 revealed acidochromic property. The fluorescence color of TPAH-B8 in organogel and solid states could be switched by trifluoroacetic acid (TFA)/triethylamine (TEA). This work not only demonstrated the multistimuli-responsive fluorescent properties of TPAH-B8 but also offered an easy way to develop new kinds of multistimuli-responsive fluorescent materials.
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Affiliation(s)
- Tianren Zhang
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin
University, Changchun 130012, China
| | - Fangyi Chen
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin
University, Changchun 130012, China
| | - Chunxue Zhang
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin
University, Changchun 130012, China
| | - Xiangyang Che
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin
University, Changchun 130012, China
| | - Wei Li
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin
University, Changchun 130012, China
| | - Binglian Bai
- College
of Physics, Jilin University, Changchun 130012, China
| | - Haitao Wang
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin
University, Changchun 130012, China
| | - Min Li
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin
University, Changchun 130012, China
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Roy K, Ghosh S, Chetia M, Satpati P, Chatterjee S. Dicyclohexylurea derivatives of amino acids as dye absorbent organogels and anion sensors. Org Biomol Chem 2019; 17:3026-3039. [PMID: 30816399 DOI: 10.1039/c9ob00014c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Dicyclohexyl urea (DCU) derivatives of amino acids Fmoc-Phe-DCU (M1), Fmoc-Phg-DCU (M2) and Fmoc-Gaba-DCU (M3) have been shown to form phase selective, thermoreversible and mechanically robust gels in a large range of organic solvents. This is the first report of low molecular weight gelators (LMWG) from DCU derivatives of amino acids. The self-assembly mechanism of the organogels has been probed using concentration dependent 1H NMR, DMSO titration 1H NMR, fluorescence, FTIR, PXRD and FESEM techniques. Self-assembly leading to gelation process is mainly driven by hydrophobicity and π-π stacking interactions in between Fmoc groups. Interestingly, the gels can absorb several kinds of organic dyes efficiently and can be reused for dye absorption for multiple cycles. Additionally, M1-M3 act as sensors for anions like fluoride, acetate and hydroxide, for which they have specific fluorescence response. Gel formation by M1-M3 is completely arrested in the presence of fluoride. The possible binding mode of fluoride has been delineated using DFT studies. Calculations suggest, involvement of urea NH in a six membered intramolecular hydrogen bond, rendering it unavailable for fluoride binding. Backbone -NH of the amino acids of M1-M3 is responsible for fluoride binding. The reported small, economically viable, synthetically facile molecules not only enrich the repertoire of LMWG molecules, but can have multifaceted applications.
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Affiliation(s)
- Karabi Roy
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, India 781039.
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6
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Jia X, Zhao J, Xu S, Zhang F, Sun J, Lu R. Luminescent Organogels Generated from Nucleosides Functionalized with Carbazole: Synthesis and Probing for F-. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701728] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoyu Jia
- State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Jinyu Zhao
- State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Shenzheng Xu
- State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Fushuang Zhang
- State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Jingbo Sun
- State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Ran Lu
- State Key Laboratory of Supramolecular Structure and Materials; College of Chemistry; Jilin University; 130012 Changchun P. R. China
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7
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Esposito CL, Kirilov P, Roullin VG. Organogels, promising drug delivery systems: an update of state-of-the-art and recent applications. J Control Release 2018; 271:1-20. [DOI: 10.1016/j.jconrel.2017.12.019] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/15/2017] [Accepted: 12/17/2017] [Indexed: 12/23/2022]
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8
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Martínez-Abadía M, Giménez R, Ros MB. Self-Assembled α-Cyanostilbenes for Advanced Functional Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1704161. [PMID: 29193366 DOI: 10.1002/adma.201704161] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/04/2017] [Indexed: 06/07/2023]
Abstract
In the specific context of condensed media, the significant and increasing recent interest in the α-cyanostilbene (CS) motif [ArCHC(CN)Ar] is relevant. These compounds have shown remarkable optical features in addition to interesting electrical properties, and hence they are recognized as very suitable and versatile options for the development of functional materials. This progress report is focused on current and future use of CS structures and molecular assemblies with the aim of exploring and developing for the next generations of functional materials. A critical selection of illustrative materials that contain the CS motif, including relevant subfamilies such as the dicyanodistyrylbenzene and 2,3,3-triphenylacrylonitrile shows how, driven by the self-assembly of CS blocks, a variety of properties, effects, and possibilities for practical applications can be offered to the scientific community, through different rational routes for the elaboration of advanced materials. A survey is provided on the research efforts directed toward promoting the self-assembly of the solid state (polycrystalline solids, thin films, and single crystals), liquid crystals, nanostructures, and gels with multistimuli responsiveness, and applications for sensors, organic light-emitting diodes, organic field effect transistors, organic lasers, solar cells, or bioimaging purposes.
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Affiliation(s)
- Marta Martínez-Abadía
- Departamento de Química Orgánica - Facultad de Ciencias, Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza - CSIC, 50009, Zaragoza, Spain
| | - Raquel Giménez
- Departamento de Química Orgánica - Facultad de Ciencias, Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza - CSIC, 50009, Zaragoza, Spain
| | - María Blanca Ros
- Departamento de Química Orgánica - Facultad de Ciencias, Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza - CSIC, 50009, Zaragoza, Spain
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9
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Wang H, Zhao J, Yang G, Zhang F, Sun J, Lu R. Diarylethene-based xerogels: the fabrication of more entangled networks driven by isomerization and acidofluorochromism. Org Biomol Chem 2018; 16:2114-2124. [DOI: 10.1039/c8ob00113h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The organogels were formed from fully-conjugated styrylbenzoxazoles and styrylbenzothiazoles without traditional gelation groups.
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Affiliation(s)
- Haoran Wang
- Sate Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P.R. China
| | - Jinyu Zhao
- Sate Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P.R. China
| | - Guojian Yang
- Sate Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P.R. China
| | - Fushuang Zhang
- Sate Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P.R. China
| | - Jingbo Sun
- Sate Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P.R. China
| | - Ran Lu
- Sate Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P.R. China
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10
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Zhang YM, Li YF, Zhong KP, Qu WJ, Yao H, Wei TB, Lin Q. A bis-naphthalimide functionalized pillar[5]arene-based supramolecular π-gel acts as a multi-stimuli-responsive material. NEW J CHEM 2018. [DOI: 10.1039/c8nj03583k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel approach for the design of multi-stimuli-responsive supramolecular functional materials was successfully developed by introducing the competition of π–π stacking and cation–π interactions into a pillar[5]arene-based supramolecular π-gel (MP5-G).
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Affiliation(s)
- You-Ming Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
| | - Yong-Fu Li
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
| | - Kai-Peng Zhong
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
| | - Wen-Juan Qu
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
| | - Hong Yao
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
| | - Tai-Bao Wei
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
| | - Qi Lin
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
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11
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Sun J, Sun J, Mi W, Xue P, Zhao J, Zhai L, Lu R. Carbazole modified salicylaldimines and their difluoroboron complexes: effect of the tert-butyl and trifluoromethyl terminal groups on organogelation and piezofluorochromism. NEW J CHEM 2017. [DOI: 10.1039/c6nj03063g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Luminescent nanofibers were generated from nontraditional π-gelators based on salicylaldimines and their difluoroboron complex bearing tert-butyl carbazole and trifluoromethylbenzene.
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Affiliation(s)
- Jiabao Sun
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Jingbo Sun
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Wenhua Mi
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Pengchong Xue
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Jinyu Zhao
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Lu Zhai
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Ran Lu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
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12
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Bai B, Zhang M, Wei J, Yan H, Wang H, Wu Y, Li M. Stimuli-responsive organogels based on a gelator of hydrazide and azobenzene units connected via a flexible central spacer. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Jia J, Xue P, Lu R. Stimuli-response fluorescence behaviors of dimesitylboron functionalized with tetraphenylethylene. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.110] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Zhang Z, Wu Z, Sun J, Xue P, Lu R. Multi-color solid-state emission of β-iminoenolate boron complexes tuned by methoxyl groups: aggregation-induced emission and mechanofluorochromism. RSC Adv 2016. [DOI: 10.1039/c6ra03722d] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New β-iminoenolate boron complexes bearing benzoxazole were synthesized, and they exhibited strong luminescence in solid states.
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Affiliation(s)
- Zhenqi Zhang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Zhu Wu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Jingbo Sun
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Pengchong Xue
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Ran Lu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
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15
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Xue P, Yao B, Wang P, Gong P, Zhang Z, Lu R. Strong Fluorescent Smart Organogel as a Dual Sensing Material for Volatile Acid and Organic Amine Vapors. Chemistry 2015; 21:17508-15. [DOI: 10.1002/chem.201502401] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Indexed: 12/22/2022]
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16
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Bhattacharjee S, Bhattacharya S. Charge Transfer Induces Formation of Stimuli-Responsive, Chiral, Cohesive Vesicles-on-a-String that Eventually Turn into a Hydrogel. Chem Asian J 2015; 10:572-80. [DOI: 10.1002/asia.201403205] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Indexed: 12/24/2022]
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17
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Ohsedo Y, Taniguchi M, Oono M, Saruhashi K, Watanabe H. Long-chain alkylamide-derived oil gels: mixing induced onset of thixotropy and application in sustained drug release. NEW J CHEM 2015. [DOI: 10.1039/c5nj00999e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oil gels composed of long-chain alkylamides exhibited thixotropic properties, although the same property was absent in each alkylamide.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | - Makiko Taniguchi
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | | | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
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18
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Wang S, Xue P, Wang P, Yao B. Emission enhanced two-component gels for the detection of organic amine vapors. NEW J CHEM 2015. [DOI: 10.1039/c5nj01168j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A two-component gelator with enhanced emission could be used to quantitatively detect and discriminate between aliphatic and aromatic organic amine vapors.
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Affiliation(s)
- Sisi Wang
- College of Chemistry
- Jilin University
- Changchun
- China
- Institute of Translational Medicine
| | | | - Panpan Wang
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Boqi Yao
- College of Chemistry
- Jilin University
- Changchun
- China
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19
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Xue P, Wang P, Yao B, Sun J, Gong P, Zhang Z, Qian C, Lu R. Nanofibers of hydrogen-bonded two-component gel with closely connected p- and n-channels and photoinduced electron transfer. ACS APPLIED MATERIALS & INTERFACES 2014; 6:21426-21434. [PMID: 25347786 DOI: 10.1021/am506422m] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An D-A-D gelator (DTCQ) was designed and synthesized using 2,3-dimethyl-5,8-di(thiophen-2-yl)quinoxaline and N-alkyl 3-aminocarbazole units as acceptor and donor, respectively, which were linked by a single bond. The compound could gelate several solvents, such as benzyl alcohol, aniline, acetophenone, and o-dichlorobenzene, as well as self-assemble into one-dimensional (1D) nanofibers in gel phase. The absorption and infrared spectra of the gels indicated that π-π interactions between aromatic moieties, intermolecular hydrogen bonds between amide units, and van der Waals forces were the driving forces for the formation of 1D self-assemblies and gel. DTCQ gel was red and emits red fluorescence because it has a strong absorption band at 487 nm and an emissive band at 620 nm. Moreover, DTCQ and a fullerene carboxylic acid formed two-component gel, in which the two compounds developed a hydrogen bond complex and self-assembled into 1D nanofibers with closely connected p- and n-channels. The nanofibrous xerogel film can rapidly generate a photocurrent under visible-light radiation through electron transfer from the gelator to fullerene, and then, the excellent exciton separation and charge transfer to two electrodes.
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Affiliation(s)
- Pengchong Xue
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699# Qianjin Street, Changchun 130012, P. R. China
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20
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Xue P, Sun J, Yao B, Gong P, Zhang Z, Qian C, Zhang Y, Lu R. Strong Emissive Nanofibers of Organogels for the Detection of Volatile Acid Vapors. Chemistry 2014; 21:4712-20. [DOI: 10.1002/chem.201405074] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Indexed: 12/22/2022]
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22
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Jia J, Xue P, Zhang Y, Xu Q, Zhang G, Huang T, Zhang H, Lu R. Fluorescent sensor based on dimesitylborylthiophene derivative for probing fluoride and cyanide. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.114] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Yang R, Peng S, Hughes TC. Multistimuli responsive organogels based on a reactive azobenzene gelator. SOFT MATTER 2014; 10:2188-2196. [PMID: 24652628 DOI: 10.1039/c3sm53145g] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A reactive azobenzene based super organogelator was found to rapidly and reversibly transform a range of hydrophobic solvents from gels to solutions upon changes in temperature, light and shear force. More specifically they formed gels at concentrations as low as 0.08 wt%. Upon heating, exposure to UV light, or application of shear, the π-π bonding was disrupted which resulted in a rapid drop of both modulus and viscosity. This was confirmed by (1)H NMR, SAXS, and rheological measurements. Although many examples of organogelators are known in the literature, this is the first time that a reactive group, a benzoyl chloride, has been incorporated in a supramolecular organogel structure. Moreover, this group is available for subsequent synthetic modifications. The presence of benzoyl chloride groups showed a remarkable effect on the formation and properties of the gels. Compared with other approaches, this strategy is advantageous in terms of structural design since it not only produces a multi-responsive soft material but also allows facile modifications which may expand the applications of organogels to other fields.
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Affiliation(s)
- Runmiao Yang
- Department of Material Engineering, Jiangsu University of Technology, Changzhou, 213001, China.
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Wei SC, Pan M, Li K, Wang S, Zhang J, Su CY. A multistimuli-responsive photochromic metal-organic gel. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:2072-2077. [PMID: 24339174 DOI: 10.1002/adma.201304404] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 11/04/2013] [Indexed: 06/03/2023]
Abstract
A photochromic metal-organic gel with thermo-, photo-, and anion-responsive behavior is obtained. Unusually, heating of the Al-ligand solution leads to gel formation and cooling to room temperature reverses the process to reform the solution. The gel is sensitive to weakly coordinating anions. Additionally, reversible photochromic transformations take place both in the solution and gel states, accompanied by reversibly switched luminescence.
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Affiliation(s)
- Shi-Chao Wei
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
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25
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Lee J, Kwon JE, You Y, Park SY. Wholly π-conjugated low-molecular-weight organogelator that displays triple-channel responses to fluoride ions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2842-2851. [PMID: 24564263 DOI: 10.1021/la403651g] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel salicylidene aniline-based wholly π-conjugated molecule that could be self-assembled into an organogel was synthesized. The rigid organogel collapsed into fluid solutions with significant changes in UV-vis absorption and fluorescence colors in response to fluoride ions. It was found that the hydroxyl group in the salicylidene aniline moiety played a key role not only in the gelation but also in fluoride ion responses.
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Affiliation(s)
- Jongha Lee
- Center for Supramolecular Optoelectronic Materials and Department of Materials Science & Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, Korea
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26
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Balamurugan S, Yeap GY, Mahmood WAK, Tan PL, Cheong KY. Thermal and photo reversible gel–sol transition of azobenzene based liquid crystalline organogel. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2013.12.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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27
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Ohsedo Y, Oono M, Saruhashi K, Watanabe H. N-Alkylamido-d-glucamine-based gelators for the generation of thixotropic gels. RSC Adv 2014. [DOI: 10.1039/c4ra08346f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Hydrogels made from new gelators exhibit thixotropic properties, whereas hydrogels formed with structurally similar N-alkyl-d-glucamide have a tendency to crystallize.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division
- Art, Science and Technology Center for Cooperative Research
- Fukuoka 819-0388, Japan
| | | | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division
- Art, Science and Technology Center for Cooperative Research
- Fukuoka 819-0388, Japan
- Nissan Chemical Industries, Ltd
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28
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Bai B, Ma J, Wei J, Song J, Wang H, Li M. A simple structural hydrazide-based gelator as a fluoride ion colorimetric sensor. Org Biomol Chem 2014; 12:3478-83. [DOI: 10.1039/c4ob00056k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Ohsedo Y, Oono M, Saruhashi K, Watanabe H. Onset of mixing-induced thixotropy in hydrogels by mixing two homologues of low-molecular-weight hydrogelators. RSC Adv 2014. [DOI: 10.1039/c4ra08345h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We determined the onset of thixotropy in hydrogels when two homologues of low-molecular-weight hydrogelators, N-alkyl-d-glucamides (CnNG), were mixed.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Fukuoka 819-0388, Japan
| | | | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Fukuoka 819-0388, Japan
- Nissan Chemical Industries, Ltd
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30
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Ohsedo Y, Oono M, Saruhashi K, Watanabe H, Miyamoto N. A new composite thixotropic hydrogel composed of a low-molecular-weight hydrogelator and a nanosheet. RSC Adv 2014. [DOI: 10.1039/c4ra08542f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New composite comprised of low-molecular-weight hydrogelator and the nanosheet Laponite®, showed thixotropic behaviour.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division
- Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Fukuoka 819-0388, Japan
| | - Masashi Oono
- Nissan Chemical Industries, Ltd
- Chiba 274-8507, Japan
| | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division
- Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Fukuoka 819-0388, Japan
| | - Nobuyoshi Miyamoto
- Department of Life
- Environment and Materials Science
- Fukuoka Institute of Technology
- Fukuoka 811-0295, Japan
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31
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Okazaki Y, Jintoku H, Takafuji M, Oda R, Ihara H. Creation of a polymer backbone in lipid bilayer membrane-based nanotubes for morphological and microenvironmental stabilization. RSC Adv 2014. [DOI: 10.1039/c4ra03161j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
We report a novel method for morphological and microenvironmental stabilization of single-walled bilayer nanotubes, which involves construction of a polymer backbone between the monolayers by intercalating a monomer, followed by in situ polymerization.
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Affiliation(s)
- Yutaka Okazaki
- Department of Applied Chemistry & Biochemistry
- Kumamoto University
- Chuo-ku, Japan
| | - Hirokuni Jintoku
- Department of Applied Chemistry & Biochemistry
- Kumamoto University
- Chuo-ku, Japan
| | - Makoto Takafuji
- Department of Applied Chemistry & Biochemistry
- Kumamoto University
- Chuo-ku, Japan
| | - Reiko Oda
- Institute of Chemistry & Biology of Membranes & Nanoobjects
- UMR5248 CBMN
- CNRS – Universite Bordeaux – Institut Polytechnique Bordeaux
- 33607 Pessac, France
| | - Hirotaka Ihara
- Department of Applied Chemistry & Biochemistry
- Kumamoto University
- Chuo-ku, Japan
- Kumamoto Institute for Photo-Electro Organics (PHOENICS)
- Higashi-ku, Japan
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32
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Tu T, Fang W, Sun Z. Visual-size molecular recognition based on gels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5304-5313. [PMID: 24089348 DOI: 10.1002/adma.201301914] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 05/28/2013] [Indexed: 06/02/2023]
Abstract
Since their discovery, stimuli-responsive organogels have garnered considerable and increasing attention from a broad range of research fields. In consideration of an one-dimensional ordered relay in anisotropic phase, the assembled gel networks can amplify various properties of the functional moieties possessed by the gelator molecules. Recently, substantial efforts have been focused on the development of facile, straightforward, and low-cost molecular recognition approaches by using nanostructured gel matrices as visual sensing platforms. In this research news, the recent progresses in macroscopic or visual-size molecular recognition for a number of homologues, isomers, and anions, as well as extremely challenging chiral enantiomers, using polymer and molecular gels are reviewed. Several strategies--including guest molecular competition, hydrogen-bonding blocking, and metal-coordination--for visual discrimination are included. Finally, the future trends and potential application in facile visual-size molecular recognition based on organogel matrices are highlighted.
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Affiliation(s)
- Tao Tu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433 PR China.
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33
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Cao X, Gao A, Lv H, Wu Y, Wang X, Fan Y. Light and acid dual-responsive organogel formation based on m-methyl red derivative. Org Biomol Chem 2013; 11:7931-7. [DOI: 10.1039/c3ob41449c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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