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152
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Yuan T, Fei J, Xu Y, Yang X, Li J. Stimuli-Responsive Dipeptide-Protein Hydrogels through Schiff Base Coassembly. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700408] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 07/18/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Tingting Yuan
- Beijing National Laboratory for Molecular Sciences; CAS Key Lab of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Zhonguancun Beijing 100190 China
- School of Chemistry and Chemical Engineering; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Sciences; CAS Key Lab of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Zhonguancun Beijing 100190 China
| | - Youqian Xu
- Beijing National Laboratory for Molecular Sciences; CAS Key Lab of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Zhonguancun Beijing 100190 China
- School of Chemistry and Chemical Engineering; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Xiaoke Yang
- Beijing National Laboratory for Molecular Sciences; CAS Key Lab of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Zhonguancun Beijing 100190 China
- School of Chemistry and Chemical Engineering; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences; CAS Key Lab of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Zhonguancun Beijing 100190 China
- School of Chemistry and Chemical Engineering; University of Chinese Academy of Sciences; Beijing 100049 China
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153
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Limón D, Jiménez‐Newman C, Rodrigues M, González‐Campo A, Amabilino DB, Calpena AC, Pérez‐García L. Cationic Supramolecular Hydrogels for Overcoming the Skin Barrier in Drug Delivery. ChemistryOpen 2017; 6:585-598. [PMID: 28794954 PMCID: PMC5542755 DOI: 10.1002/open.201700040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Indexed: 12/15/2022] Open
Abstract
A cationic bis-imidazolium-based amphiphile was used to form thermoreversible nanostructured supramolecular hydrogels incorporating neutral and cationic drugs for the topical treatment of rosacea. The concentration of the gelator and the type and concentration of the drug incorporated were found to be factors that strongly influenced the gelling temperature, gel-formation period, and overall stability and morphology. The incorporation of brimonidine tartrate resulted in the formation of the most homogeneous material of the three drugs explored, whereas the incorporation of betamethasone resulted in a gel with a completely different morphology comprising linked particles. NMR spectroscopy studies proved that these gels kept the drug not only at the interstitial space but also within the fibers. Due to the design of the gelator, drug release was up to 10 times faster and retention of the drug within the skin was up to 20 times more effective than that observed for commercial products. Experiments in vivo demonstrated the rapid efficacy of these gels in reducing erythema, especially in the case of the gel with brimonidine. The lack of coulombic attraction between the gelator-host and the guest-drug seemed particularly important in highly effective release, and the intermolecular interactions operating between them were found to lie at the root of the excellent properties of the materials for topical delivery and treatment of rosacea.
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Affiliation(s)
- David Limón
- Departament de Farmacologia, Toxicologia i Química TerapèuticaUniversitat de BarcelonaAv. Joan XXIII 27–3108028BarcelonaSpain
- Institut de Nanociència i Nanotecnologia IN2UBUniversitat de BarcelonaAv Joan XXIII, S/N08028BarcelonaSpain
| | - Claire Jiménez‐Newman
- Departament de Farmacologia, Toxicologia i Química TerapèuticaUniversitat de BarcelonaAv. Joan XXIII 27–3108028BarcelonaSpain
| | - Mafalda Rodrigues
- Departament de Farmacologia, Toxicologia i Química TerapèuticaUniversitat de BarcelonaAv. Joan XXIII 27–3108028BarcelonaSpain
- Institut de Nanociència i Nanotecnologia IN2UBUniversitat de BarcelonaAv Joan XXIII, S/N08028BarcelonaSpain
| | - Arántzazu González‐Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)Campus de la UAB08193, BellaterraBarcelonaSpain
| | - David B. Amabilino
- School of ChemistryThe University of NottinghamUniversity ParkNottinghamNG7 2RDUK
- The GSK Carbon Neutral Laboratories for Sustainable ChemistryThe University of NottinghamTriumph RoadNottinghamNG7 2TUUK
| | - Ana C. Calpena
- Institut de Nanociència i Nanotecnologia IN2UBUniversitat de BarcelonaAv Joan XXIII, S/N08028BarcelonaSpain
- Departament de Farmàcia, Tecnologia Farmacèutica i FisicoquímicaUniversitat de BarcelonaAv. Joan XXIII 27–3108028BarcelonaSpain
| | - Lluïsa Pérez‐García
- Departament de Farmacologia, Toxicologia i Química TerapèuticaUniversitat de BarcelonaAv. Joan XXIII 27–3108028BarcelonaSpain
- Institut de Nanociència i Nanotecnologia IN2UBUniversitat de BarcelonaAv Joan XXIII, S/N08028BarcelonaSpain
- Current address: School of PharmacyThe University of NottinghamUniversity ParkNottinghamNG7 2RDUK
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154
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Rajkamal, Pathak NP, Halder T, Dhara S, Yadav S. Partially Acetylated or Benzoylated Arabinose Derivatives as Structurally Simple Organogelators: Effect of the Ester Protecting Group on Gel Properties. Chemistry 2017. [PMID: 28639337 DOI: 10.1002/chem.201701669] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Sugar-based low-molecular-weight gelators (LMWGs) have been used for various applications for a long time. Herein, structurally simple, ester-protected arabinosides are reported as low-molecular-weight organogelators (LMOGs) that are able to gel aromatic solvents, as well as petrol and diesel. Studies on the mechanical strength of the gels, through detailed rheological experiments, indicate that gels from the 1,2-dibenzoylated arabinose gelator possess better mechanical properties than those from the 1,2-diacetylated gelator. These results are interpreted in terms of the tendency of the former to form fibers with comparatively lower diameter than those of the latter, based on detailed field-emission SEM and AFM studies. Investigations of the interactions responsible for the self-assembly of gelators through IR spectroscopy and wide-angle X-ray scattering reveal that the primary interactions responsible are hydrogen bonds between the hydroxyl groups and ester C=O, which is absent in the solid state of the gelators. In addition, π interactions present in the 1,2-dibenzoylated derivative result in a more regular arrangement, which, in turn, leads to better mechanical properties of the gels compared with those of the 1,2-diacetylated gelator.
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Affiliation(s)
- Rajkamal
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Navendu P Pathak
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Tanmoy Halder
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Shubhajit Dhara
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Somnath Yadav
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
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155
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Glushko VV, Serkova OS, Smoyan GN, Vasyanina LK, Maslennikova VI. Pre-organized oligofunctional ligands based on rctt-C-naphthyl-resorcinarene: Synthesis and complex formation. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2017.1322591] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Valentina V. Glushko
- Institute of Biology and Chemistry, Moscow State University of Education, Moscow, Russian Federation
| | - Olga S. Serkova
- Institute of Biology and Chemistry, Moscow State University of Education, Moscow, Russian Federation
| | - Gavaz N. Smoyan
- Institute of Biology and Chemistry, Moscow State University of Education, Moscow, Russian Federation
| | - Larisa K. Vasyanina
- Institute of Biology and Chemistry, Moscow State University of Education, Moscow, Russian Federation
| | - Vera I. Maslennikova
- Institute of Biology and Chemistry, Moscow State University of Education, Moscow, Russian Federation
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156
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Fitremann J, Lonetti B, Fratini E, Fabing I, Payré B, Boulé C, Loubinoux I, Vaysse L, Oriol L. A shear-induced network of aligned wormlike micelles in a sugar-based molecular gel. From gelation to biocompatibility assays. J Colloid Interface Sci 2017. [PMID: 28622565 DOI: 10.1016/j.jcis.2017.06.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new low molecular weight hydrogelator with a saccharide (lactobionic) polar head linked by azide-alkyne click chemistry was prepared in three steps. It was obtained in high purity without chromatography, by phase separation and ultrafiltration of the aqueous gel. Gelation was not obtained reproducibly by conventional heating-cooling cycles and instead was obtained by shearing the aqueous solutions, from 2 wt% to 0.25 wt%. This method of preparation favored the formation of a quite unusual network of interconnected large but thin 2D-sheets (7nm-thick) formed by the association side-by-side of long and aligned 7nm diameter wormlike micelles. It was responsible for the reproducible gelation at the macroscopic scale. A second network made of helical fibres with a 10-13nm diameter, more or less intertwined was also formed but was scarcely able to sustain a macroscopic gel on its own. The gels were analysed by TEM (Transmission Electronic Microscopy), cryo-TEM and SAXS (Small Angle X-ray Scattering). Molecular modelling was also used to highlight the possible conformations the hydrogelator can take. The gels displayed a weak and reversible transition near 20°C, close to room temperature, ascribed to the wormlike micelles 2D-sheets network. Heating over 30°C led to the loss of the gel macroscopic integrity, but gel fragments were still observed in suspension. A second transition near 50°C, ascribed to the network of helical fibres, finally dissolved completely these fragments. The gels showed thixotropic behaviour, recovering slowly their initial elastic modulus, in few hours, after injection through a needle. Stable gels were tested as scaffold for neural cell line culture, showing a reduced biocompatibility. This new gelator is a clear illustration of how controlling the pathway was critical for gel formation and how a new kind of self-assembly was obtained by shearing.
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Affiliation(s)
- Juliette Fitremann
- CNRS - Université de Toulouse III Paul Sabatier, Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique (IMRCP, UMR 5623), Bat 2R1, 118 Route de Narbonne, 31062 Toulouse Cedex 9, France.
| | - Barbara Lonetti
- CNRS - Université de Toulouse III Paul Sabatier, Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique (IMRCP, UMR 5623), Bat 2R1, 118 Route de Narbonne, 31062 Toulouse Cedex 9, France
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, via della Lastruccia 3-Sesto Fiorentino, I-50019 Florence, Italy
| | - Isabelle Fabing
- CNRS UMR 5068, LSPCMIB, Université de Toulouse, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
| | - Bruno Payré
- Centre de Microscopie Electronique Appliquée à la Biologie (CMEAB), Faculté de Médecine Rangueil, Université de Toulouse III Paul Sabatier, Bâtiment A5, R.D.C., 133 Route de Narbonne, 31400 Toulouse, France
| | - Christelle Boulé
- Université Claude Bernard UCBL Lyon1, Service de Prestations CTµ EZUS, Bâtiment Darwin B, 5 rue Raphaël Dubois, 69622 Villeurbanne Cedex, France
| | - Isabelle Loubinoux
- TONIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France
| | - Laurence Vaysse
- TONIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France
| | - Luis Oriol
- Instituto de Ciencia de Materiales de Aragon (ICMA),Universidad de Zaragoza-CSIC, Dpto. Quimica Organica, Facultad de Ciencias, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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157
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Zanna N, Focaroli S, Merlettini A, Gentilucci L, Teti G, Falconi M, Tomasini C. Thixotropic Peptide-Based Physical Hydrogels Applied to Three-Dimensional Cell Culture. ACS OMEGA 2017; 2:2374-2381. [PMID: 30023662 PMCID: PMC6044849 DOI: 10.1021/acsomega.7b00322] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 04/26/2017] [Indexed: 05/24/2023]
Abstract
Pseudopeptides containing the d-Oxd or the d-pGlu [Oxd = (4R,5S)-4-methyl-5-carboxyl-oxazolidin-2-one, pGlu = pyroglutamic acid] moiety and selected amino acids were used as low-molecular-weight gelators to prepare strong and thixotropic hydrogels at physiological pH. The addition of calcium chloride to the gelator solutions induces the formation of insoluble salts that get organized in fibers at a pH close to the physiological one. Physical characterization of hydrogels was carried out by morphologic evaluation and rheological measurements and demonstrated that the analyzed hydrogels are thixotropic, as they have the capability to recover their gel-like behavior. As these hydrogels are easily injectable and may be used for regenerative medicine, they were biologically assessed by cell seeding and viability tests. Human gingival fibroblasts were embedded in 2% hydrogels; all of the hydrogels allow the growth of encapsulated cells with a very good viability. The gelator toxicity may be correlated with their tendency to self-assemble and is totally absent when the hydrogel is formed.
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Affiliation(s)
- Nicola Zanna
- Dipartimento
di Chimica Ciamician, Alma Mater Studiorum
Università di Bologna, Via Selmi, 2, 40126 Bologna, Italy
| | - Stefano Focaroli
- Dipartimento
di Scienze Biomediche e Neuromotorie, Alma
Mater Studiorum Università di Bologna, Via Ugo Foscolo, 7, 40123 Bologna, Italy
| | - Andrea Merlettini
- Dipartimento
di Chimica Ciamician, Alma Mater Studiorum
Università di Bologna, Via Selmi, 2, 40126 Bologna, Italy
| | - Luca Gentilucci
- Dipartimento
di Chimica Ciamician, Alma Mater Studiorum
Università di Bologna, Via Selmi, 2, 40126 Bologna, Italy
| | - Gabriella Teti
- Dipartimento
di Scienze Biomediche e Neuromotorie, Alma
Mater Studiorum Università di Bologna, Via Ugo Foscolo, 7, 40123 Bologna, Italy
| | - Mirella Falconi
- Dipartimento
di Scienze Biomediche e Neuromotorie, Alma
Mater Studiorum Università di Bologna, Via Ugo Foscolo, 7, 40123 Bologna, Italy
| | - Claudia Tomasini
- Dipartimento
di Chimica Ciamician, Alma Mater Studiorum
Università di Bologna, Via Selmi, 2, 40126 Bologna, Italy
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158
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Awada H, Grison CM, Charnay-Pouget F, Baltaze JP, Brisset F, Guillot R, Robin S, Hachem A, Jaber N, Naoufal D, Yazbeck O, Aitken DJ. Conformational Effects through Hydrogen Bonding in a Constrained γ-Peptide Template: From Intraresidue Seven-Membered Rings to a Gel-Forming Sheet Structure. J Org Chem 2017; 82:4819-4828. [PMID: 28398045 DOI: 10.1021/acs.joc.7b00494] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A series of three short oligomers (di-, tri-, and tetramers) of cis-2-(aminomethyl)cyclobutane carboxylic acid, a γ-amino acid featuring a cyclobutane ring constraint, were prepared, and their conformational behavior was examined spectroscopically and by molecular modeling. In dilute solutions, these peptides showed a number of low-energy conformers, including ribbonlike structures pleated around a rarely observed series of intramolecular seven-membered hydrogen bonds. In more concentrated solutions, these interactions defer to an organized supramolecular assembly, leading to thermoreversible organogel formation notably for the tripeptide, which produced fibrillar xerogels. In the solid state, the dipeptide adopted a fully extended conformation featuring a one-dimensional network of intermolecularly H-bonded molecules stacked in an antiparallel sheet alignment. This work provides unique insight into the interplay between inter- and intramolecular H-bonded conformer topologies for the same peptide template.
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Affiliation(s)
- Hawraà Awada
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.,Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - Claire M Grison
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Florence Charnay-Pouget
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Jean-Pierre Baltaze
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - François Brisset
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Régis Guillot
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Sylvie Robin
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.,UFR Sciences Pharmaceutiques et Biologiques, Université Paris Descartes , 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Ali Hachem
- Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - Nada Jaber
- Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - Daoud Naoufal
- Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - Ogaritte Yazbeck
- Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - David J Aitken
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
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159
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Parveen R, Sravanthi B, Dastidar P. Rationally Developed Organic Salts of Tolfenamic Acid and Its β-Alanine Derivatives for Dual Purposes as an Anti-Inflammatory Topical Gel and Anticancer Agent. Chem Asian J 2017; 12:792-803. [PMID: 28150904 DOI: 10.1002/asia.201700049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 01/31/2017] [Indexed: 12/15/2022]
Abstract
A new series of primary ammonium monocarboxylate (PAM) salts of a nonsteroidal anti-inflammatory drug (NSAID), namely, tolfenamic acid (TA), and its β-alanine derivatives were generated. Nearly 67 % of the salts in the series showed gelling abilities with various solvents, including water (biogenic solvent) and methyl salicylate (typically used for topical gel formulations). Gels were characterized by rheology, electron microscopy, and so forth. Structure-property correlations based on single-crystal and powder XRD data of several gelator and nongelator salts revealed intriguing insights. Studies (in vitro) on an aggressive human breast cancer cell line (MDA-MB-231) with the l-tyrosine methyl ester salt of TA (S7) revealed that the hydrogelator salt was more effective at killing cancer cells than the mother drug TA (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay); displayed better anti-inflammatory activity compared with that of TA (prostaglandin E2 assay); could be internalized within the cancer cells, as revealed by fluorescence microscopy; and inhibited effectively migration of the cancer cells. Thus, the easily accessible ambidextrous gelator salt S7 can be used for two purposes: as an anti-inflammatory topical gel and as an anticancer agent.
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Affiliation(s)
- Rumana Parveen
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A&2B Raja S.C. Mullick Road, Kolkata, 700032, West Bengal, India), Fax: (+91) 33-2473-2805
| | - Bommagani Sravanthi
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A&2B Raja S.C. Mullick Road, Kolkata, 700032, West Bengal, India), Fax: (+91) 33-2473-2805
| | - Parthasarathi Dastidar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A&2B Raja S.C. Mullick Road, Kolkata, 700032, West Bengal, India), Fax: (+91) 33-2473-2805
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160
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Dou XQ, Feng CL. Amino Acids and Peptide-Based Supramolecular Hydrogels for Three-Dimensional Cell Culture. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604062. [PMID: 28112836 DOI: 10.1002/adma.201604062] [Citation(s) in RCA: 230] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 10/16/2016] [Indexed: 05/18/2023]
Abstract
Supramolecular hydrogels assembled from amino acids and peptide-derived hydrogelators have shown great potential as biomimetic three-dimensional (3D) extracellular matrices because of their merits over conventional polymeric hydrogels, such as non-covalent or physical interactions, controllable self-assembly, and biocompatibility. These merits enable hydrogels to be made not only by using external stimuli, but also under physiological conditions by rationally designing gelator structures, as well as in situ encapsulation of cells into hydrogels for 3D culture. This review will assess current progress in the preparation of amino acids and peptide-based hydrogels under various kinds of external stimuli, and in situ encapsulation of cells into the hydrogels, with a focus on understanding the associations between their structures, properties, and functions during cell culture, and the remaining challenges in this field. The amino acids and peptide-based hydrogelators with rationally designed structures have promising applications in the fields of regenerative medicine, tissue engineering, and pre-clinical evaluation.
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Affiliation(s)
- Xiao-Qiu Dou
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, 800 Dongchuan Road., 200240, Shanghai, China
| | - Chuan-Liang Feng
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, 800 Dongchuan Road., 200240, Shanghai, China
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161
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Ramin MA, Sindhu KR, Appavoo A, Oumzil K, Grinstaff MW, Chassande O, Barthélémy P. Cation Tuning of Supramolecular Gel Properties: A New Paradigm for Sustained Drug Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605227. [PMID: 28151562 DOI: 10.1002/adma.201605227] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 11/18/2016] [Indexed: 06/06/2023]
Abstract
Hydrogels formed by the self-assembly of low-molecular-weight gelators (LMWGs) are promising scaffolds for drug-delivery applications. A new biocompatible hydrogel, resulting from the self-assembly of nucleotide-lipid salts can be safely injected in vivo. The resulting hydrogel provides sustained-release of protein for more than a week.
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Affiliation(s)
- Michael A Ramin
- ARNA Laboratory, Inserm, U1212, CNRS 5320, Université de Bordeaux, F-33000, Bordeaux, France
| | | | - Ananda Appavoo
- ARNA Laboratory, Inserm, U1212, CNRS 5320, Université de Bordeaux, F-33000, Bordeaux, France
| | - Khalid Oumzil
- ARNA Laboratory, Inserm, U1212, CNRS 5320, Université de Bordeaux, F-33000, Bordeaux, France
| | - Mark W Grinstaff
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA, 02215, USA
| | | | - Philippe Barthélémy
- ARNA Laboratory, Inserm, U1212, CNRS 5320, Université de Bordeaux, F-33000, Bordeaux, France
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162
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Liu X, Duan L, Gao G. Rapidly self-recoverable and fatigue-resistant hydrogels toughened by chemical crosslinking and hydrophobic association. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.02.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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163
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Wu C, Li R, Yin Y, Wang J, Zhang L, Zhong W. Redox-responsive supramolecular hydrogel based on 10-hydroxy camptothecin-peptide covalent conjugates with high loading capacity for drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:196-202. [PMID: 28482517 DOI: 10.1016/j.msec.2017.03.103] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 12/22/2016] [Accepted: 03/12/2017] [Indexed: 01/24/2023]
Abstract
A redox-responsive supramolecular hydrogel system was developed for delivering 10-hydroxy camptothecin (HCPT). The hydrogel was formed by cleaving disulfide bond. The combination of hydrophobic HCPT with hydrogel was a simple and effective way to improve the solubility of HCPT and the drug loading capacity of delivery system. The transmission electron microscopy (TEM) image revealed the self-assembled hydrogel was long and thin nanofibers with a width of <10nm. Rheological test verified the hydrogel had fine physical properties. In vitro release experiment showed that the accumulative releasing percentages within 72h of HCPT-peptide hydrogels at 3.0%, 4.0%, 5.0% were 16.8%, 21.3%, and 26.8% respectively, which indicated the HCPT-peptide hydrogels had a significantly sustained-release characteristic. Besides, in vitro anticancer assay showed that HCPT-peptide hydrogels possessed a favorable anticancer efficacy. These results indicated that HCPT-peptide hydrogel had great potential for cancer treatment as a novel injectable drug delivery system.
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Affiliation(s)
- Can Wu
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Ruixin Li
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Yajun Yin
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Junling Wang
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Li Zhang
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Wenying Zhong
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China; Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
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164
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Raghava SV, Gopinath P, Srivastava BK, Ramkumar V, Muraleedharan KM. Sulfamide-Lattice Restructuring To Form Dimensionally Controlled Molecular Arrays and Gel-Forming Systems. Chemistry 2017; 23:3658-3665. [PMID: 28004423 DOI: 10.1002/chem.201604911] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Indexed: 01/08/2023]
Abstract
A design approach that incorporates structural requirements for the formation of a 1D assembly, fibril stability, and fibril-fibril interactions for gelation was attempted by using amino acid-based sulfamides with the general structure Aa-NH-SO2 -NH-Aa (Aa=amino acid). A preference for 1D assembly alone was not a sufficient condition for gelation, which became evident from studies involving sulfamide esters 1-5. Reducing the crystallization tendency without hindering unidirectional growth was executed through diacids of the sulfamide precursors with various amines that form an envelope around the sulfamide core through salt bridges. This strategy was fruitful, and gels of a wide variety of solvents could be formed by varying the acid and amine components. The use of dodecylamine or benzylamine, which could stabilize the molecular layers through alkyl-chain segregation or π-π interactions improved the gelation tendency, whereas the nature of the amino acid side chain, especially the rotational freedom and hydrophobicity, had a direct role in dictating the solvent preference. Crystallographic studies of these two-component systems gave molecular-level insight into the assembly and showed the importance of anisotropy in the distribution of secondary interactions in gelation.
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Affiliation(s)
- Saripalli V Raghava
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
| | - Pushparathinam Gopinath
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
| | - Bhartendu K Srivastava
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
| | - Venkatachalam Ramkumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
| | - Kannoth M Muraleedharan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
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165
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Martin AD, Wojciechowski JP, Robinson AB, Heu C, Garvey CJ, Ratcliffe J, Waddington LJ, Gardiner J, Thordarson P. Controlling self-assembly of diphenylalanine peptides at high pH using heterocyclic capping groups. Sci Rep 2017; 7:43947. [PMID: 28272523 PMCID: PMC5341053 DOI: 10.1038/srep43947] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 02/01/2017] [Indexed: 01/03/2023] Open
Abstract
Using small angle neutron scattering (SANS), it is shown that the existence of pre-assembled structures at high pH for a capped diphenylalanine hydrogel is controlled by the selection of N-terminal heterocyclic capping group, namely indole or carbazole. At high pH, changing from a somewhat hydrophilic indole capping group to a more hydrophobic carbazole capping group results in a shift from a high proportion of monomers to self-assembled fibers or wormlike micelles. The presence of these different self-assembled structures at high pH is confirmed through NMR and circular dichroism spectroscopy, scanning probe microscopy and cryogenic transmission electron microscopy.
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Affiliation(s)
- Adam D. Martin
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre for Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jonathan P. Wojciechowski
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre for Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Andrew B. Robinson
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre for Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Celine Heu
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre for Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW, 2052, Australia
- Biomedical Imaging Facility (BMIF), Mark Wainwright Analytical Centre, University of New South Wales, Sydney NSW, 2052, Australia
| | - Christopher J. Garvey
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, NSW, 2231, Australia
| | - Julian Ratcliffe
- CSIRO Manufacturing, Bayview Ave, Clayton, Victoria 3168, Australia
| | | | - James Gardiner
- CSIRO Manufacturing, Bayview Ave, Clayton, Victoria 3168, Australia
| | - Pall Thordarson
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre for Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW, 2052, Australia
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166
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Draper ER, Wallace M, Schweins R, Poole RJ, Adams DJ. Nonlinear Effects in Multicomponent Supramolecular Hydrogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:2387-2395. [PMID: 28191979 DOI: 10.1021/acs.langmuir.7b00326] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Multicomponent low molecular weight gels are useful for a range of applications. However, when mixing two components, both of which can independently form a gel, there are many potential scenarios. There is a limited understanding as to how to control and direct the assembly. Here, we focus on a pH-triggered two-component system. At high pH, colloidal structures are formed, and there is a degree of mixing of the two gelators. As the pH is decreased, there is a complex situation, where one gelator directs the assembly in a "sergeants and soldiers" manner. The second gelator is not fully incorporated, and the remainder forms an independent network. The result is that there is a nonlinear dependence on the final mechanical properties of the gels, with the storage or loss modulus being very dependent on the absolute ratio of the two components in the system.
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Affiliation(s)
- Emily R Draper
- School of Chemistry, Joseph Black Building, University of Glasgow , Glasgow G12 8QQ, U.K
| | - Matthew Wallace
- Department of Chemistry, University of Liverpool , Crown Street, Liverpool L69 7ZD, U.K
| | - Ralf Schweins
- Large Scale Structures Group, Institut Laue-Langevin , 71 Avenue des Martyrs, CS 20156, F-38042 Grenoble, CEDEX 9, France
| | - Robert J Poole
- School of Engineering, University of Liverpool , Brownlow Street, Liverpool L69 3GH, U.K
| | - Dave J Adams
- School of Chemistry, Joseph Black Building, University of Glasgow , Glasgow G12 8QQ, U.K
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167
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Díaz E, Elgueta E, Sanchez SA, Barberá J, Vergara J, Parra M, Dahrouch M. Hybrid photoluminescent materials containing a benzobisthiazole core for liquid crystal and gel applications. SOFT MATTER 2017; 13:1804-1815. [PMID: 28169382 DOI: 10.1039/c6sm02650h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Tetra- and hexacatenar amide compounds containing a linear centrosymmetric benzobisthiazole core were synthesized with good yields. These compounds were characterized and their structures confirmed by elemental analysis, and FT-IR, Maldi mass and NMR spectroscopy. All compounds exhibited excellent thermal stability up to 330 °C. The tetracatenar series containing a double substitution in the meta positions did not show mesomorphic behaviour, whereas the hexacatenar and tetracatenar series having a double substitution in the meta and para positions showed liquid crystal properties with optical textures typical of columnar mesophases corroborated by POM analysis. The mesomorphic properties were dependent on the length, number and position of alkoxy chains attached at the end of the rigid core. XRD studies of the hexacatenar series showed the hexagonal columnar structure of the mesophases. Photoluminescence properties in solution were observed in the visible region, with good quantum yields. In the solid state, these compounds behave as blue emitters and they are able to change colour with acid or base addition. The hexacatenar benzobisthiazole compound with an alkoxy chain of 14 carbons presented properties of a supergelator in chloroform, leading to the formation of a fluorescent organogel material with fluorescence emission in the blue region.
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Affiliation(s)
- E Díaz
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.
| | - E Elgueta
- Centro de Investigación de Polímeros Avanzados (CIPA), Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - S A Sanchez
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - J Barberá
- Departamento de Química Orgánica, Facultad de Ciencias-Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-C.S.I.C, 50009 Zaragoza, Spain
| | - J Vergara
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.
| | - M Parra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.
| | - M Dahrouch
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.
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168
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Colquhoun C, Draper ER, Schweins R, Marcello M, Vadukul D, Serpell LC, Adams DJ. Controlling the network type in self-assembled dipeptide hydrogels. SOFT MATTER 2017; 13:1914-1919. [PMID: 28186211 DOI: 10.1039/c6sm02666d] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We show that the same low molecular weight gelator can form gels using three different methods. Gels were formed from a high pH solution either by adding a salt or by adding an acid; gels were also formed by adding water to a solution of the gelator in an organic solvent. The mechanical properties for the gels formed by the different methods are different from one another. We link this to the network type that is formed, as well as the fibrous structures that are formed. The salt-triggered gels show a significant number of fibres that tend to align. The acid-triggered gels contain many thin fibres, which form an entangled network. The solvent-triggered gels show the presence of spherulitic domains. We show that it is tractable to vary the trigger mechanism for an established, robust gelator to prepare gels with targeted properties as opposed to synthesising new gelators.
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Affiliation(s)
- Catherine Colquhoun
- Institute of Medical and Biological Engineering - School of Biomedical Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Emily R Draper
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
| | - Ralf Schweins
- Institut Laue-Langevin, Large Scale Structures Group, 71 Avenue des Martyrs, CS 20156, F-38042 Grenoble CEDEX 9, France
| | - Marco Marcello
- Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Devkee Vadukul
- School of Life Sciences, University of Sussex, Falmer, BN1 9QG, UK
| | - Louise C Serpell
- School of Life Sciences, University of Sussex, Falmer, BN1 9QG, UK
| | - Dave J Adams
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
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169
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Barker EC, Martin AD, Garvey CJ, Goh CY, Jones F, Mocerino M, Skelton BW, Ogden MI, Becker T. Thermal annealing behaviour and gel to crystal transition of a low molecular weight hydrogelator. SOFT MATTER 2017; 13:1006-1011. [PMID: 28083581 DOI: 10.1039/c6sm02431a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The thermal annealing behaviour of an electrolyte-triggered calixarene hydrogelator is found to depend strongly on the specific metal chloride used. While the lithium chloride gel showed typical gel-sol transitions as a function of temperature, the magnesium chloride gel was found to repeatedly strengthen with heat-cool cycles. Structural investigations using small-angle neutron scattering, and scanning probe microscopy, suggest that the annealing behaviour is associated with a change in morphology of the fibrous structures supporting the gel. On prolonged standing at room temperature, the magnesium chloride gel underwent a gel-crystal transition, with the collapsing gel accompanied by the deposition of crystals of a magnesium complex of the proline-functionalised calix[4]arene gelator.
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Affiliation(s)
- Emily C Barker
- Department of Chemistry and Nanochemistry Research Institute, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia.
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170
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Krishnan BP, Sureshan KM. Topochemical Azide–Alkyne Cycloaddition Reaction in Gels: Size-Tunable Synthesis of Triazole-Linked Polypeptides. J Am Chem Soc 2017; 139:1584-1589. [DOI: 10.1021/jacs.6b11549] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Baiju P. Krishnan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, CET
Campus, Thiruvananthapuram, Kerala 695016, India
| | - Kana M. Sureshan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, CET
Campus, Thiruvananthapuram, Kerala 695016, India
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171
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Huang Y, Li H, Li Z, Zhang Y, Cao W, Wang L, Liu S. Unusual C-I···O Halogen Bonding in Triazole Derivatives: Gelation Solvents at Two Extremes of Polarity and Formation of Superorganogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:311-321. [PMID: 27990822 DOI: 10.1021/acs.langmuir.6b03691] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To investigate the influence of halogen bond (XB) on the gelation of a one-component organogel system, a new family of 5-iodo-1H-1,2,3-triazole and 1H-1,2,3-triazole gelators was designed and synthesized. The iodo gelators (1I, 3I) gelled various solvents at low concentrations and formed many superorganogels, whereas the hydrogenous gelators (1H, 3H) showed much poorer gelling performance. An X-ray analysis of the single crystals of two reference compounds (16I, 16H) reveals that the unusual C-I···O XB interaction is responsible for this difference. The results of spectroscopic examinations (XRD, SEM, 1H NMR, and UV) are well consistent with those of single-crystal analyses. Under the guidance of the XB interaction and the weak π-π interaction, 1I and 3I self-assemble to hexagonal columnar aggregations in the gel state, whereas 1H and 3H, driven by CH-π interactions, feature the formation of gels with a lamellar structure. The mechanical property of iodo gels is much better than that of hydrogenous gels under the same concentration. Gels from 1I respond to the stimuli of Hg2+, Cu2+, Zn2+, and Mg2+ as perchlorate salts, and gels from 1H are selectively responsive to Hg2+ solely.
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Affiliation(s)
- Yaodong Huang
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Huimin Li
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Ziyan Li
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Yan Zhang
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Wenwen Cao
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Luyuan Wang
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
| | - Shuxue Liu
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350, PR China
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172
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Zhao H, Schäfer AH, Seela F. Supramolecular Isoguanosine Assemblies Form Hydrogels with Excellent Long-Term Stability. Chempluschem 2017; 82:826-833. [PMID: 31961560 DOI: 10.1002/cplu.201600586] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/16/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Hang Zhao
- Laboratory of Bioorganic Chemistry and Chemical Biology; Center for Nanotechnology; Heisenbergstrasse 11 48149 Münster Germany
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology; Sichuan University; Chengdu Sichuan 610041 P. R. China
| | - Andreas H. Schäfer
- nanoAnalytics GmbH; Center for Nanotechnology; Heisenbergstrasse 11 48149 Münster Germany
| | - Frank Seela
- Laboratory of Bioorganic Chemistry and Chemical Biology; Center for Nanotechnology; Heisenbergstrasse 11 48149 Münster Germany
- Laboratorium für Organische und Bioorganische Chemie; Institut für Chemie neuer Materialien; Universität Osnabrück; Barbarastrasse 7 49069 Osnabrück Germany
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173
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Limón D, Jiménez-Newman C, Calpena AC, González-Campo A, Amabilino DB, Pérez-García L. Microscale coiling in bis-imidazolium supramolecular hydrogel fibres induced by the release of a cationic serine protease inhibitor. Chem Commun (Camb) 2017; 53:4509-4512. [DOI: 10.1039/c6cc09392b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A gemini dicationic amphiphile forms gels with a serine protease inhibitor, which could be used in a new approach to the treatment of Rosacea, and the release of the drug causes remarkable gel fibre coiling.
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Affiliation(s)
- David Limón
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Claire Jiménez-Newman
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ana C. Calpena
- Institut de Nanociència i Nanotecnologia IN2UB
- Universitat de Barcelona
- 08028 Barcelona
- Spain
- Departament de Farmàcia
| | | | - David B. Amabilino
- School of Chemistry
- University of Nottingham
- UK
- The GSK Carbon Neutral Laboratories for Sustainable Chemistry
- The University of Nottingham
| | - Lluïsa Pérez-García
- Departament de Farmacologia
- Toxicologia i Química Terapèutica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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174
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Abstract
Molecular material properties depend upon the contacts between and the arrangement of the component parts, and therefore supramolecular chemistry has developed a highly important role in this area.
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Affiliation(s)
- David B. Amabilino
- School of Chemistry & The GSK Carbon Neutral Laboratories for Sustainable Chemistry
- The University of Nottingham
- Nottingham NG7 2TU
- UK
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175
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Aldilla VR, Nizalapur S, Martin A, Marjo CE, Rich A, Yee E, Suwannakot P, Black DS, Thordarson P, Kumar N. Design, synthesis, and characterisation of glyoxylamide-based short peptides as self-assembled gels. NEW J CHEM 2017. [DOI: 10.1039/c7nj02248d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First example of glyoxylamide-based short peptides which can encapsulate organic solvents and water at relatively low concentrations.
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Affiliation(s)
| | | | - Adam Martin
- School of Chemistry
- UNSW Australia
- Sydney
- Australia
| | - Chris E. Marjo
- Mark Wainwright Analytical Centre
- UNSW Australia
- Sydney NSW 2052
- Australia
| | - Anne Rich
- Mark Wainwright Analytical Centre
- UNSW Australia
- Sydney NSW 2052
- Australia
| | - Eugene Yee
- School of Chemistry
- UNSW Australia
- Sydney
- Australia
| | | | | | | | - Naresh Kumar
- School of Chemistry
- UNSW Australia
- Sydney
- Australia
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176
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Wang Y, Wu S, Yan X, Ma T, Shao L, Liu Y, Guo Z. Alkyl bicarbamates supramolecular organogelators with effective selective gelation and high oil recovery from oil/water mixtures. CHEMOSPHERE 2017; 167:178-187. [PMID: 27718430 DOI: 10.1016/j.chemosphere.2016.09.149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 06/06/2023]
Abstract
A series of alkyl bicarbamates supramolecular organogelators were synthesized with different structures and lengths of alkyl chains. The driving forces for the self-assembly of small molecules, including the intermolecular H bonding, π-π stacking and van der Waals interactions, played an important role in the formation of different 3D network structures, i.e., fibers, ribbons, sheets, and prisms. And a probable formation process of the gel networks was proposed. Furthermore, the phase-selective gelling performances were investigated for oil removal from aqueous solution. Interestingly, the gelling properties were found to be affected by the length and structure of alkyl chains, while some gelators with intermediate alkyl chain lengths could effectively gel all the tested oils from water surface within 15 min, such as Russian crude oil, diesel, gasoline, soybean oil, peanut oil, olive oil, cyclohexane, hexane and ethyl acetate. Advantageously, fast gelation, high rate of oil removal (>95%) and excellent oil retention rate (close to 100%) were realized in the recovery of oil spills from water surface. This kind of supramolecular gelators demonstrates good potential applications in the delivery or removal of organic pollution from oil/water mixtures.
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Affiliation(s)
- Yongzhen Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Songquan Wu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Xingru Yan
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA
| | - Tao Ma
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Lu Shao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Yuyan Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA.
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177
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Rubio-Magnieto J, Tena-Solsona M, Escuder B, Surin M. Self-assembled hybrid hydrogels based on an amphipathic low molecular weight peptide derivative and a water-soluble poly(para-phenylene vinylene). RSC Adv 2017. [DOI: 10.1039/c6ra26327e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The self-assembly of an amphipathic low molecular weight peptide and a water-soluble π-conjugated polyelectrolyte is studied in order to form hybrid hydrogel materials with synergistic properties.
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Affiliation(s)
- Jenifer Rubio-Magnieto
- Laboratory for Chemistry of Novel Materials
- Center for Innovation in Materials and Polymers
- University of Mons – UMONS
- B-7000 Mons
- Belgium
| | - Marta Tena-Solsona
- Laboratory for Chemistry of Novel Materials
- Center for Innovation in Materials and Polymers
- University of Mons – UMONS
- B-7000 Mons
- Belgium
| | - Beatriu Escuder
- Departament de Química Inorgànica i Orgànica
- Universitat Jaume I
- Spain
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials
- Center for Innovation in Materials and Polymers
- University of Mons – UMONS
- B-7000 Mons
- Belgium
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178
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Kannan R, Muthuvijayan V, Prasad E. In vitro study of a glucose attached poly(aryl ether) dendron based gel as a drug carrier for a local anaesthetic. NEW J CHEM 2017. [DOI: 10.1039/c7nj01420a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A poly(aryl ether) dendron based gelator as an efficient transdermal drug carrier for the controlled release of prilocaine hydrochloride.
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Affiliation(s)
- Ramya Kannan
- Department of Chemistry
- Indian Institute of Technology
- Chennai
- India
- Department of Biotechnology
| | - Vignesh Muthuvijayan
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology
- Chennai
- India
| | - Edamana Prasad
- Department of Chemistry
- Indian Institute of Technology
- Chennai
- India
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179
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Wang G, Chen A, Mangunuru HPR, Yerabolu JR. Synthesis and characterization of amide linked triazolyl glycolipids as molecular hydrogelators and organogelators. RSC Adv 2017. [DOI: 10.1039/c7ra06228a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Eighteen new glycolipids were synthesized and characterized. All eighteen are effective molecular gelators for at least one solvent and eleven are hydrogelators at concentrations of 0.15–1.0 wt%. The hydrogels are suitable carriers for sustained release of chloramphenicol.
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Affiliation(s)
- Guijun Wang
- Department of Chemistry and Biochemistry
- Old Dominion University
- Norfolk
- USA
| | - Anji Chen
- Department of Chemistry and Biochemistry
- Old Dominion University
- Norfolk
- USA
| | - Hari P. R. Mangunuru
- Department of chemical and medicinal engineering
- Virginia Commonwealth University
- Richmond
- USA
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180
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Kesava Raju CS, Pramanik B, Ravishankar R, Chalapathi Rao PV, Sriganesh G. Xylitol based phase selective organogelators for potential oil spillage recovery. RSC Adv 2017. [DOI: 10.1039/c7ra06898k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Xylitol based cost effective and easily synthesizable phase selective gelators were developed for strong gelation ability for different crude oils, wide range of refinery products and reported for their potential application in oil spillage recovery.
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Affiliation(s)
| | - Bhaskar Pramanik
- Analytical Division
- Hindustan Petroleum Green R&D Center (HPGRDC)
- KIADB Industrial Estate
- Bangalore
- India
| | - Raman Ravishankar
- Analytical Division
- Hindustan Petroleum Green R&D Center (HPGRDC)
- KIADB Industrial Estate
- Bangalore
- India
| | | | - Gandham Sriganesh
- Analytical Division
- Hindustan Petroleum Green R&D Center (HPGRDC)
- KIADB Industrial Estate
- Bangalore
- India
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181
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Enhancement of self-assembly and gelation ability of N,N’-didodecanoyl ethylenediamine organogelator by terminal functionalization. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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182
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Manchineella S, Govindaraju T. Molecular Self-Assembly of Cyclic Dipeptide Derivatives and Their Applications. Chempluschem 2016; 82:88-106. [PMID: 31961506 DOI: 10.1002/cplu.201600450] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/20/2016] [Indexed: 01/08/2023]
Abstract
Cyclic dipeptides (CDPs) are heterocyclic 2,5-diketopiperazines with exceptional structural rigidity, enzymatic stability, and biological activity, exhibiting a substantial tendency to take part in intermolecular interactions. Strong intermolecular interactions driven by unique hydrogen bonding patterns render CDPs with a high propensity to undergo molecular self-assembly. In this Review, the aim is to provide a comprehensive summary of design strategies used to engineer the molecular self-assembly of CDPs into functional nano- and micro-architectures and molecular gels with potential applications in biomedical and materials engineering fields.
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Affiliation(s)
- Shivaprasad Manchineella
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru, Karnataka, 560064, India
| | - T Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru, Karnataka, 560064, India
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183
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Skilling KJ, Kellam B, Ashford M, Bradshaw TD, Marlow M. Developing a self-healing supramolecular nucleoside hydrogel. SOFT MATTER 2016; 12:8950-8957. [PMID: 27714367 DOI: 10.1039/c6sm01779g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Low molecular weight gelator hydrogels provide a viable alternative to traditional polymer based drug delivery platforms, owing to their tunable stability and in most cases inherent biocompatibility. Here we report the first self-healing nucleoside hydrogel using N4-octanoyl-2'-deoxycytidine (0.5% w/v) for drug delivery. The hydrogel's cross-linked nanofibrillar structure, was characterised using oscillatory rheology and confirmed using SEM and TEM imaging. The potential of this gel for drug delivery was explored in vitro using fluorescently labelled tracers. Cell viability assays were conducted using pancreatic cell lines which tolerated the gels well; whilst no adverse effects on the viability or proliferation of cells were observed for fibroblast cell lines.
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Affiliation(s)
- K J Skilling
- School of Pharmacy, University of Nottingham, NG7 2RD, UK.
| | - B Kellam
- School of Pharmacy, University of Nottingham, NG7 2RD, UK.
| | - M Ashford
- AstraZeneca, Macclesfield, Cheshire SK10 2NA, UK
| | - T D Bradshaw
- School of Pharmacy, University of Nottingham, NG7 2RD, UK.
| | - M Marlow
- School of Pharmacy, University of Nottingham, NG7 2RD, UK.
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184
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185
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Cao X, Zhao N, Li R, Lv H, Zhang Z, Gao A, Yi T. Steric-Structure-Dependent Gel Formation, Hierarchical Structures, Rheological Behavior, and Surface Wettability. Chem Asian J 2016; 11:3196-3204. [DOI: 10.1002/asia.201601011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/06/2016] [Indexed: 01/30/2023]
Affiliation(s)
- Xinhua Cao
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Na Zhao
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Ruohan Li
- Department of Chemistry and Collaborative Innovation Centre of Energy Materials; Fudan University; Shanghai 200433 China
| | - Haiting Lv
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Zongwen Zhang
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Aiping Gao
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Tao Yi
- Department of Chemistry and Collaborative Innovation Centre of Energy Materials; Fudan University; Shanghai 200433 China
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186
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Castilla AM, Wallace M, Mears LLE, Draper ER, Doutch J, Rogers S, Adams DJ. On the syneresis of an OPV functionalised dipeptide hydrogel. SOFT MATTER 2016; 12:7848-7854. [PMID: 27714311 DOI: 10.1039/c6sm01194b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We describe a new dipeptide hydrogel based on an oligophenylene vinylene core. After gelation, the initial network evolves, expelling solvent and resulting in syneresis. We describe this process and the effects in the bulk properties of the material.
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Affiliation(s)
- Ana M Castilla
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
| | - Matthew Wallace
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
| | - Laura L E Mears
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
| | - Emily R Draper
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
| | - James Doutch
- ISIS Pulsed Neutron Source, Rutherford Appleton Laboratory, Didcot, UK
| | - Sarah Rogers
- ISIS Pulsed Neutron Source, Rutherford Appleton Laboratory, Didcot, UK
| | - Dave J Adams
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
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187
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188
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Veits GK, Carter KK, Cox SJ, McNeil AJ. Developing a Gel-Based Sensor Using Crystal Morphology Prediction. J Am Chem Soc 2016; 138:12228-33. [DOI: 10.1021/jacs.6b06269] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gesine K. Veits
- Department of Chemistry and
Macromolecular Science and Engineering Program, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
| | - Kelsey K. Carter
- Department of Chemistry and
Macromolecular Science and Engineering Program, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
| | - Sarah J. Cox
- Department of Chemistry and
Macromolecular Science and Engineering Program, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
| | - Anne J. McNeil
- Department of Chemistry and
Macromolecular Science and Engineering Program, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
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189
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Characterization and behavior of composite hydrogel prepared from bamboo shoot cellulose and β-cyclodextrin. Int J Biol Macromol 2016; 89:527-34. [DOI: 10.1016/j.ijbiomac.2016.05.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 05/04/2016] [Accepted: 05/06/2016] [Indexed: 01/27/2023]
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190
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Lu M, Cao Y, Ho CT, Huang Q. Development of Organogel-Derived Capsaicin Nanoemulsion with Improved Bioaccessibility and Reduced Gastric Mucosa Irritation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:4735-4741. [PMID: 27170269 DOI: 10.1021/acs.jafc.6b01095] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Capsaicin (CAP) is the major active component in chili peppers with health-promoting benefits. However, the low bioavailability and irritating quality of CAP greatly limit its applications in functional foods. The objective of this study was to develop a food-grade nanoemulsion to increase the dissolution and bioaccessibility of CAP and to alleviate its irritating effects. To achieve this goal, CAP was first dissolved in medium-chain triacylglycerol (MCT), followed by the addition of sucrose stearate S-370 as organogelator to develop CAP-loaded organogel. The oil-in-water (O/W) emulsion was formed using organogel as the oil phase and Tween 80 as the emulsifier. After ultrasonication treatment, droplet sizes of emulsion were decreased to 168 nm with enhanced dissolution rate and bioaccessibility. In vivo study further confirmed the reduced rat gastric mucosa irritation caused by CAP. The organogel-derived nanoemulsion was proved to be an effective delivery system for CAP-based functional food products.
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Affiliation(s)
- Muwen Lu
- Department of Food Science, Rutgers University , 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Yong Cao
- College of Food Science, South China Agricultural University , Guangzhou 510642, People's Republic of China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University , 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Qingrong Huang
- Department of Food Science, Rutgers University , 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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191
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Bentz KC, Walley SE, Savin DA. Solvent effects on modulus of poly(propylene oxide)-based organogels as measured by cavitation rheology. SOFT MATTER 2016; 12:4991-5001. [PMID: 27181162 DOI: 10.1039/c6sm00431h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A series of novel organogels were synthesized from poly(propylene oxide) (PPO) functionalized with main chain urea moieties which provided rapid gelation and high moduli in a variety of solvents. Three different molecular weight PPOs were used in this study: 430, 2000, and 4000 g mol(-1), each with α,ω-amino-end groups. Four urea groups were introduced into the main chain by reaction with hexamethylene diisocyanate followed by subsequent reaction with a monofunctional alkyl or aromatic amine. This PPO/urea gelator was found to form gels in carbon tetrachloride, chloroform, dichloromethane, toluene, ethyl acetate, and tetrahydrofuran. Among these, carbon tetrachloride and toluene were found to be the best solvents for this system, resulting in perfectly clear gels with high moduli at low mass fraction for PPO-2000 systems. Flory-Huggins polymer-solvent interaction parameter, χ, was found to be a useful indicator of gel quality for these systems, with χCCl4/PPO-2000 < 0.5 and χtoluene/PPO-2000≈ 0.5. Systems with χ parameters >0.5 were found to form low moduli gels, indicating that for these systems, polymer-solvent interaction parameters can be a useful predictor of gel quality in different solvent systems.
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Affiliation(s)
- Kyle C Bentz
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA.
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192
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Baker BC, Higgins CL, Ravishankar D, Colquhoun HM, Stevens GC, Greco F, Greenland BW, Hayes W. Multifunctional, Biocompatible, Non-peptidic Hydrogels: from Water Purification to Drug Delivery. ChemistrySelect 2016. [DOI: 10.1002/slct.201600249] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Benjamin C. Baker
- Department of Chemistry; University of Reading; Whiteknights, Reading RG6 6AD UK
| | - Clare L. Higgins
- Department of Chemistry; University of Reading; Whiteknights, Reading RG6 6AD UK
| | | | - Howard M. Colquhoun
- Department of Chemistry; University of Reading; Whiteknights, Reading RG6 6AD UK
| | - Gary C. Stevens
- Gnosys Global Ltd.; 17-18 Frederick Sanger Road Guildford, Surrey GU2 7YD UK
| | - Francesca Greco
- School of Pharmacy; University of Reading; Whiteknights, Reading RG6 6AP UK
| | | | - Wayne Hayes
- Department of Chemistry; University of Reading; Whiteknights, Reading RG6 6AD UK
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193
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Synthesis and gelation capability of Fmoc and Boc mono-substituted cyclo(L-Lys-L-Lys)s. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-5471-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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194
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Peters GM, Davis JT. Supramolecular gels made from nucleobase, nucleoside and nucleotide analogs. Chem Soc Rev 2016; 45:3188-206. [PMID: 27146863 DOI: 10.1039/c6cs00183a] [Citation(s) in RCA: 180] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Supramolecular or molecular gels are attractive for various applications, including diagnostics, tissue scaffolding and targeted drug release. Gelators derived from natural products are of particular interest for biomedical purposes, as they are generally biocompatible and stimuli-responsive. The building blocks of nucleic acids (i.e. nucleobases, nucleosides, and nucleotides) are desirable candidates for supramolecular gelation as they readily engage in reversible, noncovalent interactions. In this review, we describe a number of organo- and hydrogels formed through the assembly of nucleosides, nucleotides, and their derivatives. While natural nucleosides and nucleotides generally require derivatization to induce gelation, guanosine and its corresponding nucleotides are well known gelators. This unique gelating ability is due to propensity of the guanine nucleobase to self-associate into stable higher-order assemblies, such as G-ribbons, G4-quartets, and G-quadruplexes.
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Affiliation(s)
- Gretchen Marie Peters
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712-1224, USA.
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195
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Thool GS, Narayanaswamy K, Venkateswararao A, Naqvi S, Gupta V, Chand S, Vivekananthan V, Koner RR, Krishnan V, Singh SP. Highly Directional 1D Supramolecular Assembly of New Diketopyrrolopyrrole-Based Gel for Organic Solar Cell Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4346-4351. [PMID: 27079750 DOI: 10.1021/acs.langmuir.6b00846] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new thermoreversible organogel based on diketopyrrolopyrrole dye (DPP-NCO) is reported for the first time and evolved as a new building block for the fabrication of 1D supramolecular assembly. AFM analysis illustrated that its gel state is composed of different sized 1D rods. DPP-NCO gel used as an additive in organic solar cells yields high efficiency of 7.9% owing to better nanophase separation of its active layer.
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Affiliation(s)
- Gautam Sheel Thool
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology , Uppal road, Tarnaka, Hyderabad 500007, India
| | - K Narayanaswamy
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology , Uppal road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi, India
| | - A Venkateswararao
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology , Uppal road, Tarnaka, Hyderabad 500007, India
| | - Sheerin Naqvi
- Organic and Hybrid Solar Cells, Physics of Energy Harvesting Division, CSIR-National Physical Laboratory , New Delhi 110012, India
| | - Vinay Gupta
- Organic and Hybrid Solar Cells, Physics of Energy Harvesting Division, CSIR-National Physical Laboratory , New Delhi 110012, India
| | - Suresh Chand
- Organic and Hybrid Solar Cells, Physics of Energy Harvesting Division, CSIR-National Physical Laboratory , New Delhi 110012, India
| | - V Vivekananthan
- School of Basic Sciences, Indian Institute of Technology , Mandi Kamand, Mandi 175 005, Himachal Pradesh, India
| | - Rik Rani Koner
- School of Basic Sciences, Indian Institute of Technology , Mandi Kamand, Mandi 175 005, Himachal Pradesh, India
| | - Venkata Krishnan
- School of Basic Sciences, Indian Institute of Technology , Mandi Kamand, Mandi 175 005, Himachal Pradesh, India
| | - Surya Prakash Singh
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology , Uppal road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi, India
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196
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Liao W, Zhang R, Dong C, Yu Z, Ren J. Novel walnut peptide-selenium hybrids with enhanced anticancer synergism: facile synthesis and mechanistic investigation of anticancer activity. Int J Nanomedicine 2016; 11:1305-21. [PMID: 27143875 PMCID: PMC4841427 DOI: 10.2147/ijn.s92257] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This contribution reports a facile synthesis of degreased walnut peptides (WP1)-functionalized selenium nanoparticles (SeNPs) hybrids with enhanced anticancer activity and a detailed mechanistic evaluation of its superior anticancer activity. Structural and chemical characterizations proved that SeNPs are effectively capped with WP1 via physical absorption, resulting in a stable hybrid structure with an average diameter of 89.22 nm. A panel of selected human cancer cell lines demonstrated high susceptibility toward WP1-SeNPs and displayed significantly reduced proliferative behavior. The as-synthesized WP1-SeNPs exhibited excellent selectivity between cancer cells and normal cells. The targeted induction of apoptosis in human breast adenocarcinoma cells (MCF-7) was confirmed by the accumulation of arrested S-phase cells, nuclear condensation, and DNA breakage. Careful investigations revealed that an extrinsic apoptotic pathway can be attributed to the cell apoptosis and the same was confirmed by activation of the Fas-associated with death domain protein and caspases 3, 8, and 9. In addition, it was also understood that intrinsic apoptotic pathways including reactive oxygen species generation, as well as the reduction in mitochondrial membrane potential, are also involved in the WP1-SeNP-induced apoptosis. This suggested the involvement of multiple apoptosis pathways in the anticancer activity. Our results indicated that WP1-SeNP hybrids with Se core encapsulated in a WP1 shell could be a highly effective method to achieve anticancer synergism. Moreover, the great potential exhibited by WP1-SeNPs could make them an ideal candidate as a chemotherapeutic agent for human cancers, especially for breast cancer.
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Affiliation(s)
- Wenzhen Liao
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, People's Republic of China
| | - Rong Zhang
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, People's Republic of China
| | - Chenbo Dong
- Civil and Environmental Engineering, Rice University, Houston, TX, USA
| | - Zhiqiang Yu
- School of Pharmaceutical Science, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Jiaoyan Ren
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, People's Republic of China
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197
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Ohsedo Y. Low-Molecular-Weight Gelators as Base Materials for Ointments. Gels 2016; 2:E13. [PMID: 30674145 PMCID: PMC6318696 DOI: 10.3390/gels2020013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 03/24/2016] [Indexed: 12/21/2022] Open
Abstract
Ointments have been widely used as an efficient means of transdermal drug application for centuries. In order to create ointments suitable for various new medicinal drugs, the creation of ointment base materials, such as gels, has attracted much research attention in this decade. On the other hand, the chemical tuning of low-molecular-weight gelators (LMWGs) has been increasingly studied for two decades because LMWGs can be tailored for different purposes by molecular design and modification. In this review, several series of studies related to the creation of ointment base materials with enhanced properties using existing and newly-created LMWGs are summarized.
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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, 6-1 Kasuga-koen, Kasuga-city, Fukuoka 816-8580, Japan.
- Comprehensive Research Organization, Fukuoka Institute of Technology, 3-30-1, Wajiro-Higashi, Higashi-ku, Fukuoka 811-0295, Japan.
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198
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Sun Y, Kaplan JA, Shieh A, Sun HL, Croce CM, Grinstaff MW, Parquette JR. Self-assembly of a 5-fluorouracil-dipeptide hydrogel. Chem Commun (Camb) 2016; 52:5254-7. [PMID: 26996124 DOI: 10.1039/c6cc01195k] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The self-assembly of 5-fluorouracil dilysine conjugates into self-supporting hydrogels, comprised of entangled nanofibers or rigid nanotubes with diameters of 10 and 16 nm, respectively, is reported. The rate of release of 5-Fu from the conjugates was highly dependent on concentration in solution, whereas, release from the fully formed hydrogels was significantly slower. The 5-Fu conjugate also exhibited promising in vitro cytotoxicity against human tumor cell lines A549, H460 and H23.
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Affiliation(s)
- Yuan Sun
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave., Columbus, Ohio 43210, USA.
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199
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Chassenieux C, Tsitsilianis C. Recent trends in pH/thermo-responsive self-assembling hydrogels: from polyions to peptide-based polymeric gelators. SOFT MATTER 2016; 12:1344-1359. [PMID: 26781351 DOI: 10.1039/c5sm02710a] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this article, we highlight some recent developments in "smart" physical hydrogels achieved by self-assembling of block type macromolecules. More precisely we focus on two interesting types of gelators namely conventional ionic (or ionogenic) block copolymers and peptide-based polymers having as a common feature their responsiveness to pH and/or temperature which are the main triggers used for potential biomedical applications. Taking advantage of the immense skills of conventional block copolymer hydrogelators, namely macromolecular design, self-assembling mechanism, gel rheological properties, responsiveness to various triggers and innovative applications, the development of novel self-assembling gelators, integrating the new knowledge emerging from the peptide-based systems, opens new horizons towards bio-inspired technologies.
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Affiliation(s)
- Christophe Chassenieux
- LUNAM Université, Université du Maine, IMMM-UMR CNRS 6283, Département Polymères, Colloides et Interfaces, av. O. Messiaen, 72085 Le Μans cedex 9, France
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200
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Abstract
This paper highlights recent developments in the design and construction of functional materials such as supramolecular hydrogels and ion channels using a guanine motif as a self-assembling building block.
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Affiliation(s)
- Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
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