51
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Wu M, Chen J, Huang W, Yan B, Peng Q, Liu J, Chen L, Zeng H. Injectable and Self-Healing Nanocomposite Hydrogels with Ultrasensitive pH-Responsiveness and Tunable Mechanical Properties: Implications for Controlled Drug Delivery. Biomacromolecules 2020; 21:2409-2420. [DOI: 10.1021/acs.biomac.0c00347] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Meng Wu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Jingsi Chen
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Weijuan Huang
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Bin Yan
- College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan, China
| | - Qiongyao Peng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Jifang Liu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China
| | - Lingyun Chen
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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52
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van der Vlag R, Yagiz Unver M, Felicetti T, Twarda‐Clapa A, Kassim F, Ermis C, Neochoritis CG, Musielak B, Labuzek B, Dömling A, Holak TA, Hirsch AKH. Optimized Inhibitors of MDM2 via an Attempted Protein-Templated Reductive Amination. ChemMedChem 2020; 15:370-375. [PMID: 31774938 PMCID: PMC7064911 DOI: 10.1002/cmdc.201900574] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/21/2019] [Indexed: 12/17/2022]
Abstract
Innovative and efficient hit-identification techniques are required to accelerate drug discovery. Protein-templated fragment ligations represent a promising strategy in early drug discovery, enabling the target to assemble and select its binders from a pool of building blocks. Development of new protein-templated reactions to access a larger structural diversity and expansion of the variety of targets to demonstrate the scope of the technique are of prime interest for medicinal chemists. Herein, we present our attempts to use a protein-templated reductive amination to target protein-protein interactions (PPIs), a challenging class of drug targets. We address a flexible pocket, which is difficult to achieve by structure-based drug design. After careful analysis we did not find one of the possible products in the kinetic target-guided synthesis (KTGS) approach, however subsequent synthesis and biochemical evaluation of each library member demonstrated that all the obtained molecules inhibit MDM2. The most potent library member (Ki =0.095 μm) identified is almost as active as Nutlin-3, a potent inhibitor of the p53-MDM2 PPI.
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Affiliation(s)
- Ramon van der Vlag
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 79747 AGGroningenThe Netherlands
| | - M. Yagiz Unver
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 79747 AGGroningenThe Netherlands
| | - Tommaso Felicetti
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 79747 AGGroningenThe Netherlands
- Department of Pharmaceutical SciencesUniversity of PerugiaVia del Liceo 106123PerugiaItaly
| | | | - Fatima Kassim
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 79747 AGGroningenThe Netherlands
| | - Cagdas Ermis
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 79747 AGGroningenThe Netherlands
| | - Constantinos G. Neochoritis
- Department of Pharmacy, Drug Design groupUniversity of GroningenA. Deusinglaan 1GroningenThe Netherlands
- Chemistry departmentUniversity of Crete70013HeraklionGreece
| | - Bogdan Musielak
- Faculty of ChemistryJagiellonian UniversityGronostajowa 230-387KrakowPoland
| | - Beata Labuzek
- Faculty of ChemistryJagiellonian UniversityGronostajowa 230-387KrakowPoland
| | - Alexander Dömling
- Department of Pharmacy, Drug Design groupUniversity of GroningenA. Deusinglaan 1GroningenThe Netherlands
| | - Tad A. Holak
- Faculty of ChemistryJagiellonian UniversityGronostajowa 230-387KrakowPoland
| | - Anna K. H. Hirsch
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 79747 AGGroningenThe Netherlands
- Department of Drug Design and OptimizationHelmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI)Campus Building E8.166123SaarbrückenGermany
- Department of PharmacySaarland UniversityCampus Building E8.166123SaarbrückenGermany
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53
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Strauss MJ, Evans AM, Castano I, Li RL, Dichtel WR. Supramolecular polymerization provides non-equilibrium product distributions of imine-linked macrocycles. Chem Sci 2020; 11:1957-1963. [PMID: 34123290 PMCID: PMC8148301 DOI: 10.1039/c9sc05422g] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Supramolecular polymerization of imine-linked macrocycles has been coupled to dynamic imine bond exchange within a series of macrocycles and oligomers. In this way, macrocycle synthesis is driven by supramolecular assembly, either into small aggregates supported by π–π interactions, or high-aspect ratio nanotubes stabilized primarily by electrostatic and solvophobic interactions. For the latter, supramolecular polymerization into nanotubes restricts imine exchange, thereby conferring chemical stability to the assemblies and their constituent macrocycles. Competition in the formation and component exchange among macrocycles favored pyridine-2,6-diimine-linked species due to their rapid synthesis, thermodynamic stability, and assembly into high-aspect ratio nanotubes under the reaction conditions. In addition, the pyridine-containing nanotubes inhibit the formation of similar macrocycles containing benzene-1,3-diimine-linkages, presumably by disrupting their assembly and templation. Finally, we exploit rapid imine exchange within weak, low-aspect ratio macrocycle aggregates to carry out monomer exchange reactions to macrocycles bearing pyridine moieties. Once a pyridine-containing dialdehyde has exchanged into a macrocycle, the macrocycle becomes capable of nanotube formation, which dramatically slows further imine exchange. This kinetic trap provides chemically diverse macrocycles that are not attainable by direct synthetic methods. Together these findings provide new insights into coupling supramolecular polymerization and dynamic covalent bond-forming processes and leverages this insight to target asymmetric nanotubes. We envision these findings spurring further research efforts in the synthesis of nanostructures with designed and emergent properties. Supramolecular polymerization of imine-linked macrocycles has been coupled to dynamic imine bond exchange within a series of macrocycles and oligomers.![]()
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Affiliation(s)
- Michael J Strauss
- Department of Chemistry, Northwestern University Evanston IL 60208 USA
| | - Austin M Evans
- Department of Chemistry, Northwestern University Evanston IL 60208 USA
| | - Ioannina Castano
- Department of Chemistry, Northwestern University Evanston IL 60208 USA
| | - Rebecca L Li
- Department of Chemistry, Northwestern University Evanston IL 60208 USA
| | - William R Dichtel
- Department of Chemistry, Northwestern University Evanston IL 60208 USA
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54
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Bargan A, Zaltariov MF, Vlad A, Dumitriu AMC, Soroceanu A, Macsim AM, Dascalu M, Varganici CD, Cazacu M, Shova S. Keto-enol tautomerism in new silatranes Schiff bases tailed with different substituted salicylic aldehyde. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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55
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Forget SM, Xia F(R, Hein JE, Brumer H. Determination of biocatalytic parameters of a copper radical oxidase using real-time reaction progress monitoring. Org Biomol Chem 2020; 18:2076-2084. [DOI: 10.1039/c9ob02757b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
VTNA is applied to reaction progress curves to glean key kinetic and mechanistic details for a copper radical oxidase.
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Affiliation(s)
- Stephanie M. Forget
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- Michael Smith Laboratories
| | - Fan (Roderick) Xia
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- Michael Smith Laboratories
| | - Jason E. Hein
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Harry Brumer
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- Michael Smith Laboratories
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56
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Stanek F, Pawlowski R, Morawska P, Bujok R, Stodulski M. Dehydrogenation and α-functionalization of secondary amines by visible-light-mediated catalysis. Org Biomol Chem 2020; 18:2103-2112. [DOI: 10.1039/c9ob02699a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A visible-light-mediated process for dehydrogenation of amines has been described. The given protocol showed a broad substrate scope, mild reaction conditions and excellent results without the requirement of tedious purification.
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Affiliation(s)
- Filip Stanek
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Robert Pawlowski
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | | | - Robert Bujok
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Maciej Stodulski
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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57
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Pianoski KE, Poletto J, Vieira da Silva MJ, Ascencio Camargo JN, Jacomini AP, Gonçalves DS, Back DF, Moura S, Rosa FA. 1,2-Addition to trifluoromethylated β-enamino diketones: regioselective synthesis of trifluoromethyl-containing azomethine pyrazoles and isoxazoles. Org Biomol Chem 2020; 18:2524-2537. [DOI: 10.1039/d0ob00319k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Trifluoromethylated β-enamino diketones undergo type 1,2-addition leading to regioselective synthesis of trifluoromethylated azoles containing an azomethine group.
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Affiliation(s)
| | - Julia Poletto
- Departamento de Química
- Universidade Estadual de Maringá (UEM)
- Maringá
- Brazil
| | | | | | | | | | - Davi Fernando Back
- Departamento de Química
- Universidade Federal de Santa Maria (UFSM)
- 97110-970 - Santa Maria
- Brazil
| | - Sidnei Moura
- Instituto de Biotecnologia
- Universidade de Caxias do Sul (UCS)
- Caxias do Sul
- Brazil
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58
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Synthesis and molecular docking studies of imines as α-glucosidase and α-amylase inhibitors. Bioorg Chem 2019; 94:103491. [PMID: 31818480 DOI: 10.1016/j.bioorg.2019.103491] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 11/23/2019] [Accepted: 12/01/2019] [Indexed: 11/22/2022]
Abstract
Imine functionality is found in many compounds with important biological activity. Thus, the development of novel synthetic approaches for imines is important. In this work, it is propose an easy, eco-friendly and straightforward synthesis pathway of aryl imines under microwave irradiation catalyzed by Alumina-sulfuric acid. In addition, the in vitro enzymatic inhibition, antioxidant activity and molecular docking studies were performed. The aryl imines were isolated with yields in the range of 37-94%. All aryl imines synthesized were evaluated for in vitro inhibitory potential against α-glucosidase and α-amylase enzymes and the results exhibited that the most of the compounds displayed inhibitory activity against both enzymes. The (E)-1-(4-nitrophenyl)-N-(pyridin-2-yl)methanimine (3d) was 1.15-fold more active than acarbose against α-amylase whilst the (E)-1-phenyl-N-(pyridin-2-yl)methanimine (3c) displayed similar activity that acarbose against α-glucosidase. The molecular docking studies in α-glucosidase and α-amylase reveal that aryl imines mainly establish an H-bond with the R2-subtituent and hydrophobic interactions with the R1-subtituent. The docking analysis reveals these synthetic aryl imines 3d-i interact in same active site than acarbose drug in both enzymes.
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59
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Chabbi J, Aqil A, Katir N, Vertruyen B, Jerôme C, Lahcini M, El Kadib A. Aldehyde-conjugated chitosan-graphene oxide glucodynamers: Ternary cooperative assembly and controlled chemical release. Carbohydr Polym 2019; 230:115634. [PMID: 31887867 DOI: 10.1016/j.carbpol.2019.115634] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 10/21/2019] [Accepted: 11/16/2019] [Indexed: 10/25/2022]
Abstract
Simultaneous condensation of aromatic aldehydes (ArxCHO; x = 1-4) on chitosan biopolymer (CS) affords, after water-evaporation, structurally-conjugated aryl-functionalized CS-Arx-f films. Similarly, cooperative assembly of two-dimensional nanometric graphene oxide (GO), aromatic aldehyde and chitosan provides transparent, flexible and crack-free aldehyde-functionalized, ternary-reinforced CS-Arx-GO-f nanocomposite films. Homogenous films were obtained using ortho-hydroxybenzaldehyde Ar1 while the para-hydroxybenzaldehyde Ar4 was prone to packing inside. Textural and mechanical properties were investigated and expectedly, significant improvement was found for CS-Ar1-GO-f because of the great dispersion of the aromatic and the presence of the filler. The sensitivity of unsaturated CN imine bond to hydrolysis was explored for triggering controlled release of aromatics from the as-prepared films. All of them were found to induce a time-dependent aromatic release. It has been moreover observed that the release was significantly delayed in CS-Arx-GO-f compared to CS-Arx-f, a fact attributed to the interplay of the ring with the basal and edges of graphene oxide, through π-π stacking and additional hydrogen bonding interactions. This finding shows that beyond the conventional wisdom using fillers for improving thermal and mechanical properties, the tiny carbon sheets can act as a regulator for aldehyde release, thereby providing a way for more controlled chemical delivery from confined nanocomposites.
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Affiliation(s)
- Jamal Chabbi
- Euromed Research Center. Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda. 30070 Fès, Morocco; Centre for Education and Research on Macromolecules, CESAM Research Unit, Chemistry Department, University of Liege, Sart-Tilman B6a, Allée de la Chimie 4000 Liège, Belgium; Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
| | - Abdelhafid Aqil
- Centre for Education and Research on Macromolecules, CESAM Research Unit, Chemistry Department, University of Liege, Sart-Tilman B6a, Allée de la Chimie 4000 Liège, Belgium
| | - Nadia Katir
- Euromed Research Center. Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda. 30070 Fès, Morocco
| | - Bénédicte Vertruyen
- Centre for Education and Research on Macromolecules, CESAM Research Unit, Chemistry Department, University of Liege, Sart-Tilman B6a, Allée de la Chimie 4000 Liège, Belgium
| | - Christine Jerôme
- Centre for Education and Research on Macromolecules, CESAM Research Unit, Chemistry Department, University of Liege, Sart-Tilman B6a, Allée de la Chimie 4000 Liège, Belgium
| | - Mohamed Lahcini
- Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco; Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, 43150 Ben Guerir, Morocco
| | - Abdelkrim El Kadib
- Euromed Research Center. Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda. 30070 Fès, Morocco.
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60
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Castro-Blanco RA, Rojas-Rodríguez M, Hernández A, Lozano ÁE, Alexandrova L, Aguilar-Lugo C. Aromatic polyimides and copolyimides containing bulky t-butyltriphenylmethane units. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-03003-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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61
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Tong KY, Zhao J, Tse CW, Wan PK, Rong J, Au-Yeung HY. Selective catecholamine detection in living cells by a copper-mediated oxidative bond cleavage. Chem Sci 2019; 10:8519-8526. [PMID: 31762971 PMCID: PMC6855198 DOI: 10.1039/c9sc03338f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 08/10/2019] [Indexed: 12/17/2022] Open
Abstract
The development of a new triggered-release system for selective detection of catecholamines in biological samples including living cells is reported. Catecholamines are a class of tightly regulated hormones and neurotransmitters in the human body and their dysregulation is implicated in various neurodegenerative diseases. It is highly challenging to selectively sense and detect catecholamines in a complex biological environment due to their small size, non-specific molecular shape and trivial chemical properties. In this study, a copper-based, catecholamine-triggered oxidation that releases a fluorescent reporter is described. The probe is highly sensitive and selective for detecting changes in catecholamine levels in aqueous buffer, human plasma, and cellular models of neuronal differentiation and Parkinson's disease. This new catecholamine sensing strategy features chemical reactivity as part of small molecule recognition as opposed to the conventional use of a well-designed host for reversible binding.
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Affiliation(s)
- Ka Yan Tong
- The University of Hong Kong , State Key Laboratory for Synthetic Chemistry , Department of Chemistry , Pokfulam Road , P. R. China .
| | - Jia Zhao
- School of Chinese Medicine , The University of Hong Kong , 10 Sassoon Road, Pokfulam , Hong Kong , P. R. China
| | - Chun-Wai Tse
- The University of Hong Kong , State Key Laboratory for Synthetic Chemistry , Department of Chemistry , Pokfulam Road , P. R. China .
| | - Pui-Ki Wan
- The University of Hong Kong , State Key Laboratory for Synthetic Chemistry , Department of Chemistry , Pokfulam Road , P. R. China .
| | - Jianhui Rong
- School of Chinese Medicine , The University of Hong Kong , 10 Sassoon Road, Pokfulam , Hong Kong , P. R. China
| | - Ho Yu Au-Yeung
- The University of Hong Kong , State Key Laboratory for Synthetic Chemistry , Department of Chemistry , Pokfulam Road , P. R. China .
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62
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Buijs W. Direct Air Capture of CO 2 with an Amine Resin: A Molecular Modeling Study of the Oxidative Deactivation Mechanism with O 2. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wim Buijs
- Process & Energy Department, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Leeghwaterstraat 39, 2628CB Delft, The Netherlands
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63
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Gong Y, Soleymani Abyaneh H, Drossis N, Niederquell A, Kuentz M, Leroux JC, de Haan HW, Gauthier MA. Ultra-sub-stoichiometric "Dynamic" Bioconjugation Reduces Viscosity by Disrupting Immunoglobulin Oligomerization. Biomacromolecules 2019; 20:3557-3565. [PMID: 31398010 DOI: 10.1021/acs.biomac.9b00867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Monoclonal antibodies (mAb) are a major focus of the pharmaceutical industry, and polyclonal immunoglobulin G (IgG) therapy is used to treat a wide variety of health conditions. As some individuals require mAb/IgG therapy their entire life, there is currently a great desire to formulate antibodies for bolus injection rather than infusion. However, to achieve the required doses, very concentrated antibody solutions may be required. Unfortunately, mAb/IgG self-assembly at high concentration can produce an unacceptably high viscosity for injection. To address this challenge, this study expands the concept of "dynamic covalent chemistry" to "dynamic bioconjugation" in order to reduce viscosity by interfering with antibody-antibody interactions. Ultra-sub-stoichiometric amounts of dynamic PEGylation agents (down to the nanomolar) significantly reduced the viscosity of concentrated antibody solutions by interfering with oligomerization.
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Affiliation(s)
- Yuhui Gong
- Swiss Federal Institute of Technology Zurich (ETHZ) , Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences , Vladimir-Prelog-Weg 3 , 8093 Zurich , Switzerland
| | - Hoda Soleymani Abyaneh
- Institut National de la Recherche Scientifique (INRS) , EMT Research Center , 1650 boul. Lionel-Boulet , Varennes , J3X 1S2 , Canada
| | - Nicole Drossis
- University of Ontario Institute of Technology , Faculty of Science , Oshawa , Ontario L1H 7K4 , Canada
| | - Andreas Niederquell
- University of Applied Sciences Northwestern Switzerland , School of Life Sciences, Institute of Pharma Technology , Hofackerstr. 30 , 4132 Muttenz , Switzerland
| | - Martin Kuentz
- University of Applied Sciences Northwestern Switzerland , School of Life Sciences, Institute of Pharma Technology , Hofackerstr. 30 , 4132 Muttenz , Switzerland
| | - Jean-Christophe Leroux
- Swiss Federal Institute of Technology Zurich (ETHZ) , Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences , Vladimir-Prelog-Weg 3 , 8093 Zurich , Switzerland
| | - Hendrick W de Haan
- University of Ontario Institute of Technology , Faculty of Science , Oshawa , Ontario L1H 7K4 , Canada
| | - Marc A Gauthier
- Institut National de la Recherche Scientifique (INRS) , EMT Research Center , 1650 boul. Lionel-Boulet , Varennes , J3X 1S2 , Canada
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64
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Osypenko A, Dhers S, Lehn JM. Pattern Generation and Information Transfer through a Liquid/Liquid Interface in 3D Constitutional Dynamic Networks of Imine Ligands in Response to Metal Cation Effectors. J Am Chem Soc 2019; 141:12724-12737. [DOI: 10.1021/jacs.9b05438] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Artem Osypenko
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Sébastien Dhers
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Jean-Marie Lehn
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, 67000 Strasbourg, France
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65
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Guo J, Higgins MA, Daniel-Ivad P, Ryan KS. An Asymmetric Reductase That Intercepts Acyclic Imino Acids Produced in Situ by a Partner Oxidase. J Am Chem Soc 2019; 141:12258-12267. [PMID: 31298853 DOI: 10.1021/jacs.9b03307] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Acyclic imines are unstable in aqueous conditions. For this reason, known imine reductases, which enable the synthesis of chiral amines, mainly intercept stable cyclic imines. Here we report the detailed biochemical and structural characterization of Bsp5, an imino acid reductase from the d-2-hydroxyacid dehydrogenase family that reduces acyclic imino acids produced in situ by a partner oxidase. We determine a 1.6 Å resolution structure of Bsp5 in complex with d-arginine and coenzyme NADPH. Combined with mutagenesis work, our study reveals the minimal structural constraints for its biosynthetic activity. Furthermore, we demonstrate that Bsp5 can intercept more complex products from an alternate oxidase partner, suggesting that this oxidase-imino acid reductase pair could be evolved for biocatalytic conversion of l-amino acids to d-amino acids.
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Affiliation(s)
- Jin Guo
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z4 , Canada
| | - Melanie A Higgins
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z4 , Canada
| | - Phillip Daniel-Ivad
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z4 , Canada
| | - Katherine S Ryan
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z4 , Canada
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66
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67
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Designing chitosan based eco-friendly multifunctional soil conditioner systems with urea controlled release and water retention. Carbohydr Polym 2019; 223:115040. [PMID: 31427019 DOI: 10.1016/j.carbpol.2019.115040] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 06/02/2019] [Accepted: 06/28/2019] [Indexed: 12/22/2022]
Abstract
The paper reports new soil conditioner systems obtained by in situ hydrogelation of chitosan with salicylaldehyde in the presence of urea fertilizer, designed to address both fertilization and water retention of the soil. The new systems were structural, supramolecular and morphological characterized by FTIR spectroscopy, XRD diffraction, POM and SEM microscopy. The rate of urea release has been investigated by NMR analysis and the release mechanism has been assessed by fitting five mathematical models. The formulations showed high water absorbency of 68 g/g, and they induced water holding capacity in soil up to 154% and an increment of the nitrogen content in soil to almost double, leading to a growth of plants with almost 70% higher compared to the reference soil. All these data revealed the new systems as new multifunctional soil conditioner ecoproducts capable to address both fertilizing and water retention issues, with high potential of application for sustainable agriculture.
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68
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Dizdarević A, Efiana NA, Phan TNQ, Matuszczak B, Bernkop-Schnürch A. Imine bond formation: A novel concept to incorporate peptide drugs in self-emulsifying drug delivery systems (SEDDS). Eur J Pharm Biopharm 2019; 142:92-100. [PMID: 31176724 DOI: 10.1016/j.ejpb.2019.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 06/01/2019] [Accepted: 06/05/2019] [Indexed: 01/03/2023]
Abstract
HYPOTHESIS Because of its hydrophilic character the peptide drug Polymyxin B (PMB) cannot be incorporated in lipophilic nanocarrier systems such as self-emulsifying drug delivery systems (SEDDS) for oral administration. Due to the formation of imine conjugates between the primary amino groups of PMB and the carbonyl group of cinnamaldehyde, however, drug lipophilicity might be sufficiently raised for incorporation in SEDDS. METHODS Imine bonds were formed between the primary amino groups of PMB and the carbonyl group of cinnamaldehyde. PMB-cinnamaldehyde conjugate was characterized regarding degree of substitution, log P and release of PMB due to interaction with bovine serum albumin (BSA), SEDDS loading and cell viability. RESULTS 87.1% of primary amines formed imines with cinnamaldehyde. Log P was increased 69.183 - folds. BSA triggered release of PMB was 45.2%, 64.9% and 80.6% within 16 h. Log DSEDDS/Release medium of PMB-cinnamaldehyde conjugate was 3.4. CONCLUSION According to these findings, the concept of imine bond formation with cinnamaldehyde can be considered as a novel concept for increasing lipophilicity of the hydrophilic antibiotic peptide PMB.
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Affiliation(s)
- Aida Dizdarević
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
| | - Nuri Ari Efiana
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria; Department of Pharmaceutical Technology, Faculty of Pharmacy, Universitas Ahmad Dahlan, Jl. Prof. Dr. Soepomo, S.H., Janturan, Warungboto, Umbulharjo, Yogyakarta 55164, Indonesia
| | - Thi Nhu Quynh Phan
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria; Faculty of Pharmacy, University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen Street, Vinh Ninh Ward, Hue City, Thua Thien Hue Province 530000, Viet Nam
| | - Barbara Matuszczak
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria.
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Novel Inulin Derivatives Modified with Schiff Bases: Synthesis, Characterization, and Antifungal Activity. Polymers (Basel) 2019; 11:polym11060998. [PMID: 31167475 PMCID: PMC6631190 DOI: 10.3390/polym11060998] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 05/29/2019] [Accepted: 06/01/2019] [Indexed: 12/17/2022] Open
Abstract
In this paper, we report chemical modifications of inulin by seven kinds of aromatic Schiff bases, which are different from their substituent groups. The obtained inulin derivatives were confirmed by FTIR, 1H NMR, and 13C NMR. Then, we studied their antifungal activity against four kinds of plant pathogens involving Botrytis cinerea, Fusarium oxysporum f. sp. cucumerium Owen, Fusarium oxysporum f. sp. niveum, and Phomopsis asparagi by the mycelium growth rate method. The results revealed that all inulin derivatives were endowed with significant antifungal activity compared to inulin. Among them, 6-amino-(N-4-chlorobenzylidene)-6-deoxy-3,4-di-O-acetyl inulin (4CBSAIL) and 6-amino-(N-3,4-dichlorobenzylidene)-6-deoxy-3,4-di-O-acetyl inulin (3,4DCBSAIL), which were synthesized from p-chlorobenzaldehyde and 3,4-dichlorobenzaldehyde, could completely inhibit the growth of the test fungi at 1.0 mg/mL. The inhibitory indices of the inulin derivatives were related to the type, position, and number of substituent groups (halogens) on the Schiff bases. The results confirmed that it was feasible to chemically modify inulin with Schiff bases to confer high antifungal activity to inulin. The products described in this paper have great potential as alternatives to some harmful pesticides used for plant disease control.
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Karges J, Heinemann F, Maschietto F, Patra M, Blacque O, Ciofini I, Spingler B, Gasser G. A Ru(II) polypyridyl complex bearing aldehyde functions as a versatile synthetic precursor for long-wavelength absorbing photodynamic therapy photosensitizers. Bioorg Med Chem 2019; 27:2666-2675. [PMID: 31103403 DOI: 10.1016/j.bmc.2019.05.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/03/2019] [Accepted: 05/07/2019] [Indexed: 12/12/2022]
Abstract
The use of Photodynamic Therapy (PDT) for the treatment of several kinds of cancer as well as bacterial, fungal or viral infections has received increasing attention during the last decade. However, the currently clinically approved photosensitizers (PSs) have several drawbacks, including photobleaching, slow clearance from the organism and poor water solubility. To overcome these shortcomings, many efforts have been made in the development of new types of PSs, such as Ru(II) polypyridyl complexes. Nevertheless, most studied Ru(II) polypyridyl complexes have a low absorbance in the spectral therapeutic window. In this work, we show that, by carefully selecting substituents on the polypyridyl complex, it is possible to prepare a complex absorbing at a much higher wavelength. Specifically, we report on the synthesis as well as in-depth experimental and theoretical characterisation of a Ru(II) polypyridyl complex (complex 3) combining a shift in absorbance towards the spectral therapeutic window with a high 1O2 production. To overcome the absence or poor selectivity of most approved PSs into targeted cells/bacteria, they can be linked to targeting moieties. In this line, compound 3 was designed with reactive aldehyde groups, which can be used as a highly versatile synthetic precursor for further conjugation. As a proof of concept, 3 was reacted with benzylamine and the stability of the resulting conjugate 4 was investigated in DMSO, PBS and cell media. 4 showed an impressive ability to act as a PDT PS with no measurable dark cytotoxicity and photocytotoxicity in the low micromolar range against cancerous HeLa cells from 450 nm up to 540 nm.
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Affiliation(s)
- Johannes Karges
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France
| | - Franz Heinemann
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France; Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Federica Maschietto
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Theoretical Chemistry and Modelling, 75005 Paris, France
| | - Malay Patra
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Olivier Blacque
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Ilaria Ciofini
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Theoretical Chemistry and Modelling, 75005 Paris, France
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
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71
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Chakma P, Konkolewicz D. Dynamic Covalent Bonds in Polymeric Materials. Angew Chem Int Ed Engl 2019; 58:9682-9695. [PMID: 30624845 DOI: 10.1002/anie.201813525] [Citation(s) in RCA: 345] [Impact Index Per Article: 69.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Indexed: 12/20/2022]
Abstract
Dynamic covalent bonds (DCBs) have received significant attention over the past decade. These are covalent bonds that are capable of exchanging or switching between several molecules. Particular focus has recently been on utilizing these DCBs in polymeric materials. Introduction of DCBs into a polymer material provides it with powerful properties including self-healing, shape-memory properties, increased toughness, and ability to relax stresses as well as to change from one macromolecular architecture to another. This Minireview summarizes commonly used powerful DCBs formed by simple, often "click" reactions, and highlights the powerful materials that can result. Challenges and potential future developments are also discussed.
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Affiliation(s)
- Progyateg Chakma
- Department of Chemistry and Biochemistry, Miami University, 651 East High Street, Oxford, OH, 45056, USA
| | - Dominik Konkolewicz
- Department of Chemistry and Biochemistry, Miami University, 651 East High Street, Oxford, OH, 45056, USA
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72
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Affiliation(s)
- Progyateg Chakma
- Department of Chemistry and BiochemistryMiami University 651 East High Street Oxford OH 45056 USA
| | - Dominik Konkolewicz
- Department of Chemistry and BiochemistryMiami University 651 East High Street Oxford OH 45056 USA
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74
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Feng Z, Yu B, Hu J, Zuo H, Li J, Sun H, Ning N, Tian M, Zhang L. Multifunctional Vitrimer-Like Polydimethylsiloxane (PDMS): Recyclable, Self-Healable, and Water-Driven Malleable Covalent Networks Based on Dynamic Imine Bond. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05309] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zhanbin Feng
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bing Yu
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jing Hu
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hongli Zuo
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Li
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haibin Sun
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Nanying Ning
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ming Tian
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liqun Zhang
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
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75
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Czerwiński PJ, Furman B. Overcoming inaccessibility of fluorinated imines - synthesis of functionalized amines from readily available fluoroacetamides. Chem Commun (Camb) 2019; 55:9436-9439. [PMID: 31304490 DOI: 10.1039/c9cc04111g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although imines are convenient substrates for the synthesis of functionalized amines, they may be hard to obtain, as in the case of fluorinated imines. To aid in overcoming this issue, we propose a protocol of corresponding amine synthesis from simple fluoroacetic acid-derived amides using Schwartz's reagent.
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Affiliation(s)
- Paweł J Czerwiński
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
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76
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Shiraki T, Shiga T, Shiraishi T, Onitsuka H, Nakashima N, Fujigaya T. Multistep Wavelength Switching of Near-Infrared Photoluminescence Driven by Chemical Reactions at Local Doped Sites of Single-Walled Carbon Nanotubes. Chemistry 2018; 24:19162-19165. [PMID: 30370950 DOI: 10.1002/chem.201805342] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Indexed: 11/07/2022]
Abstract
Local chemical functionalization is used for defect doping of single-walled carbon nanotubes (SWNTs), to develop near-infrared photoluminescence (NIR PL) properties. We report the multistep wavelength shifting of the NIR PL of SWNTs through chemical reactions at local doped sites tethered to an arylaldehyde group. The PL wavelength of the doped SWNTs is modulated based on imine chemistry. This involves the imine formation of aldehyde groups with added arylamines, imine dissociation reaction, exchange reaction of bound arylamines in the imine, and the Kabachnik-Fields reaction of imine groups using diisopropyl phosphite. Using doped sites as a localized chemical reaction platform can exploit the versatile molecularly driven functionality of carbon nanotubes and related nanomaterials.
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Affiliation(s)
- Tomohiro Shiraki
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tamehito Shiga
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tomonari Shiraishi
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Hisashi Onitsuka
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Naotoshi Nakashima
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tsuyohiko Fujigaya
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
- JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
- Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
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77
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Nguyen R, Jouault N, Zanirati S, Rawiso M, Allouche L, Buhler E, Giuseppone N. Autopoietic Behavior of Dynamic Covalent Amphiphiles. Chemistry 2018; 24:17125-17137. [PMID: 30144185 DOI: 10.1002/chem.201803833] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Indexed: 01/06/2023]
Abstract
The condensation of aldehydes and amines in water to give amphiphilic imines can lead to a particular autocatalytic behavior known as autopoiesis, in which the closed micellar structure made by the amphiphile at the mesoscale can accelerate the condensation of its constituents. Herein, through a combination of analytical tools, including diffusion ordered spectroscopy (DOSY) as well as light, neutron, and X-ray scattering techniques, the thermodynamic and kinetic parameters were probed at both the level of dynamic covalent imine bond formation and the level of the resulting micellar self-assemblies. It was found that the autopoietic behavior was the result of a combination of several parameters, including solubilization of hydrophobic building blocks, template effect at the core-shell interface, and growth/division cycles of the micellar objects.
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Affiliation(s)
- Rémi Nguyen
- Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
| | - Nicolas Jouault
- Matière et Systèmes Complexes (MSC) Laboratory, UMR 7057, Sorbonne Paris Cité, University of Paris Diderot-Paris VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet., 75205, Paris Cedex 13, France
- Sorbonne Université, CNRS, Laboratoire PHysicochimie des, Electrolytes et des Nanosytèmes InterfaciauX, PHENIX, 75005, Paris, France
| | - Stefano Zanirati
- Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
| | - Michel Rawiso
- Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
| | - Lionel Allouche
- Institut de Chimie, Service de RMN, Université Louis Pasteur, 1 rue Blaise Pascal, 67008, Strasbourg Cedex, France
| | - Eric Buhler
- Matière et Systèmes Complexes (MSC) Laboratory, UMR 7057, Sorbonne Paris Cité, University of Paris Diderot-Paris VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet., 75205, Paris Cedex 13, France
| | - Nicolas Giuseppone
- Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
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78
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Shi L, Liu F, Liu T, Chen J, Xu S, Zeng H. Reversible fabrication and self-assembly of a gemini supra-amphiphile driven by dynamic covalent bonds. SOFT MATTER 2018; 14:5995-6000. [PMID: 30020304 DOI: 10.1039/c8sm01239c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A smart gemini supra-amphiphile behaving with pH/CO2 dual-sensitive hierarchical self-assembly was fabricated under the effect of dynamic covalent bonds. In the presence of an amino-functionalized cation, water-insoluble terephthalaldehyde, and an amphiphilic anion, the benzoic imine bond can initiate the transformation from a single-tailed supra-amphiphile to a gemini supra-amphiphile with increasing pH, followed by the subsequent evolution from micelles to vesicles. Reversible self-assembly and disassembly of the gemini supra-amphiphile can be realized via CO2/N2 treatment, thus inducing the fission and reversion of vesicles. Interestingly, the flexible nature of supra-amphiphiles allows for the hierarchical assembly of vesicles, leading to the formation of aqueous two-phase systems. Multiple responsive supra-amphiphiles have useful applications in the fabrication of smart supra-molecular materials, including self-healing materials, nanocarriers and chemosensors.
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Affiliation(s)
- Lijuan Shi
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi Province, P. R. China
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79
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Seoane A, Brea RJ, Fuertes A, Podolsky KA, Devaraj NK. Biomimetic Generation and Remodeling of Phospholipid Membranes by Dynamic Imine Chemistry. J Am Chem Soc 2018; 140:8388-8391. [PMID: 29886740 DOI: 10.1021/jacs.8b04557] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Biomimetic liposomes have a wide array of applications in several areas, ranging from medicinal chemistry to synthetic biology. Due to their biocompatibility and biological relevance, there is particular interest in the formation of synthetic phospholipid vesicles and the development of methods to tune their properties in a controlled manner. However, while true biological membranes are capable of responding to environmental stimuli by enzymatically remodeling their composition, synthetic liposomes are typically static once formed. Herein we report the chemoselective reaction of the natural amine-containing lysosphingomyelin with a series of long-chain aldehydes to form imines. This transformation results in the formation of phospholipid liposomes that are in dynamic equilibrium with the aldehyde-amine form. The reversibility of the imine linkage is exploited in the synthesis of vesicles that are capable of responding to external stimuli such as temperature or the addition of small molecules.
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Affiliation(s)
- Andrés Seoane
- Department of Chemistry and Biochemistry , University of California, San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Roberto J Brea
- Department of Chemistry and Biochemistry , University of California, San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Alberto Fuertes
- Department of Chemistry and Biochemistry , University of California, San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Kira A Podolsky
- Department of Chemistry and Biochemistry , University of California, San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
| | - Neal K Devaraj
- Department of Chemistry and Biochemistry , University of California, San Diego , 9500 Gilman Drive , La Jolla , California 92093 , United States
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80
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Zhang Y, Li Y, Su C, Barboiu M. Dynameric Frameworks with Aggregation-Induced Emission for Selective Detection of Adenosine Triphosphate. Chempluschem 2018; 83:506-513. [PMID: 31950657 DOI: 10.1002/cplu.201800173] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/05/2018] [Indexed: 01/04/2023]
Abstract
Luminogenic materials with aggregation-induced emission (AIE) have attracted considerable interest for applications. If these systems aggregate, the free rotation of their scaffold is restricted, and as a consequence the photoluminescence increases. Herein, the first experimental observation of a "dynameric effect" on AIE is described. A comparison is made of the AIE of molecular and dynameric sensors that exhibit non-linear turn-on switching of fluorescence upon their interaction with adenosine triphosphate (ATP). Confirmation was obtained from the enhanced ATP detection with multivalent dynameric networks compared with a molecular sensor. The dynamic, reversible behaviour of the imine linkages is critical to produce this enhancement, as a static, imine-reduced, polymeric sensor showed decreased AIE activity. The dynameric frameworks showed selectivity for ATP over adenosine diphosphate, and adenosine monophosphate over guanosine triphosphate or cytidine triphosphate. Together, these results will accelerate the systematic discovery of efficient adaptive biomimetic sensors.
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Affiliation(s)
- Yan Zhang
- Institut Européen des Membranes, Adaptive Supramolecular Nanosystems Group, University of Montpellier, ENSCM, CNRS, Place Eugène Bataillon, CC 047, 34095, Montpellier, France.,School of Pharmaceutical Sciences, Jiangnan University, Lihu Road 1800, Wuxi, 214122, P. R. China
| | - Yuhao Li
- Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Chengyong Su
- Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Mihail Barboiu
- Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.,Institut Européen des Membranes, Adaptive Supramolecular Nanosystems Group, University of Montpellier, ENSCM, CNRS, Place Eugène Bataillon, CC 047, 34095, Montpellier, France
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81
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Abstract
Incorporating labile bonds inside polymer backbone and side chains yields interesting polymer materials that are responsive to change of environmental stimuli. Drugs can be conjugated to various polymers through different conjugation linkages and spacers. One of the key factors influencing the release profile of conjugated drugs is the hydrolytic stability of the conjugated linkage. Generally, the hydrolysis of acid-labile linkages, including acetal, imine, hydrazone, and to some extent β-thiopropionate, are relatively fast and the conjugated drug can be completely released in the range of several hours to a few days. The cleavage of ester linkages are usually slow, which is beneficial for continuous and prolonged release. Another key structural factor is the water solubility of polymer-drug conjugates. Generally, the release rate from highly water-soluble prodrugs is fast. In prodrugs with large hydrophobic segments, the hydrophobic drugs are usually located in the hydrophobic core of micelles and nanoparticles, which limits the access to the water, hence lowering significantly the hydrolysis rate. Finally, self-immolative polymers are also an intriguing new class of materials. New synthetic pathways are needed to overcome the fact that much of the small molecules produced upon degradation are not active molecules useful for biomedical applications.
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Affiliation(s)
- Farzad Seidi
- Department of Materials Science and Engineering, School of Molecular Science and Engineering , Vidyasirimedhi Institute of Science and Technology , Rayong 21210 , Thailand
| | - Ratchapol Jenjob
- Department of Materials Science and Engineering, School of Molecular Science and Engineering , Vidyasirimedhi Institute of Science and Technology , Rayong 21210 , Thailand
| | - Daniel Crespy
- Department of Materials Science and Engineering, School of Molecular Science and Engineering , Vidyasirimedhi Institute of Science and Technology , Rayong 21210 , Thailand
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Caprice K, Pupier M, Kruve A, Schalley CA, Cougnon FBL. Imine-based [2]catenanes in water. Chem Sci 2018; 9:1317-1322. [PMID: 29675178 PMCID: PMC5887103 DOI: 10.1039/c7sc04901c] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 12/18/2017] [Indexed: 01/07/2023] Open
Abstract
We report the efficient condensation of imine-based macrocycles from dialdehyde A and aliphatic diamines B n in pure water. Within the libraries, we identified a family of homologous amphiphilic [2]catenanes, whose self-assembly is primarily driven by the hydrophobic effect. The length and odd-even character of the diamine alkyl linker dictate both the yield and the conformation of the [2]catenanes, whose particular thermodynamic stability further shifts the overall equilibrium in favour of imine condensation. These findings highlight the role played by solvophobic effects in the self-assembly of complex architectures.
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Affiliation(s)
- Kenji Caprice
- Department of Organic Chemistry , University of Geneva , 30 Quai Ernest Ansermet , 1211 Geneva 4 , Switzerland .
| | - Marion Pupier
- Department of Organic Chemistry , University of Geneva , 30 Quai Ernest Ansermet , 1211 Geneva 4 , Switzerland .
| | - Anneli Kruve
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustraße 3 , 14195 Berlin , Germany
| | - Christoph A Schalley
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustraße 3 , 14195 Berlin , Germany
| | - Fabien B L Cougnon
- Department of Organic Chemistry , University of Geneva , 30 Quai Ernest Ansermet , 1211 Geneva 4 , Switzerland .
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83
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Hozumi T, Kageyama T, Ohta S, Fukuda J, Ito T. Injectable Hydrogel with Slow Degradability Composed of Gelatin and Hyaluronic Acid Cross-Linked by Schiff’s Base Formation. Biomacromolecules 2018; 19:288-297. [DOI: 10.1021/acs.biomac.7b01133] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Takuro Hozumi
- Department
of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tatsuto Kageyama
- Faculty
of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
| | - Seiichi Ohta
- Center
for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Junji Fukuda
- Faculty
of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
| | - Taichi Ito
- Department
of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center
for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
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84
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Olaru AM, Marin L, Morariu S, Pricope G, Pinteala M, Tartau-Mititelu L. Biocompatible chitosan based hydrogels for potential application in local tumour therapy. Carbohydr Polym 2018; 179:59-70. [DOI: 10.1016/j.carbpol.2017.09.066] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/04/2017] [Accepted: 09/21/2017] [Indexed: 01/02/2023]
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85
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Kuroda K, Shimada Y, Takahashi K. CO 2-triggered fine tuning of electrical conductivity via tug-of-war between ions. NEW J CHEM 2018. [DOI: 10.1039/c8nj02642d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We proposed a novel methodology to tune the conductivity of solutions by exploiting a reversible shift between ions and zwitterions.
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Affiliation(s)
- Kosuke Kuroda
- Division of Natural System
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kakuma-machi
- Kanazawa 920-1192
| | - Yumiko Shimada
- Division of Natural System
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kakuma-machi
- Kanazawa 920-1192
| | - Kenji Takahashi
- Division of Natural System
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kakuma-machi
- Kanazawa 920-1192
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86
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Brisar R, Hollmann D, Mejia E. Pyrazine Radical Cations as a Catalyst for the Aerobic Oxidation of Amines. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700949] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rok Brisar
- Leibniz Institute for Catalysis; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Dirk Hollmann
- Leibniz Institute for Catalysis; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Esteban Mejia
- Leibniz Institute for Catalysis; Albert-Einstein-Straße 29a 18059 Rostock Germany
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87
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Zhang Q, Xu TY, Zhao CX, Jin WH, Wang Q, Qu DH. Dynamic Self-Assembly of Gold/Polymer Nanocomposites: pH-Encoded Switching between 1D Nanowires and 3D Nanosponges. Chem Asian J 2017; 12:2549-2553. [DOI: 10.1002/asia.201701119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 08/11/2017] [Indexed: 01/11/2023]
Affiliation(s)
- Qi Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry and Molecular Engineering; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 China), Fax: (+86) 21-642-527-58
| | - Tian-Yi Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry and Molecular Engineering; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 China), Fax: (+86) 21-642-527-58
| | - Cai-Xin Zhao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry and Molecular Engineering; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 China), Fax: (+86) 21-642-527-58
| | - Wei-Hang Jin
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry and Molecular Engineering; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 China), Fax: (+86) 21-642-527-58
| | - Qian Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry and Molecular Engineering; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 China), Fax: (+86) 21-642-527-58
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry and Molecular Engineering; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 China), Fax: (+86) 21-642-527-58
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88
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Kulchat S, Chaur MN, Lehn JM. Kinetic Selectivity and Thermodynamic Features of Competitive Imine Formation in Dynamic Covalent Chemistry. Chemistry 2017. [DOI: 10.1002/chem.201702088] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sirinan Kulchat
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg; 8 allée Gaspard Monge, BP 70028 67000 Strasbourg Cedex France
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science; Khon Kaen University, Nai Muang, Muang; Khon Kaen 40002 Thailand
| | - Manuel N. Chaur
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg; 8 allée Gaspard Monge, BP 70028 67000 Strasbourg Cedex France
- Departamento de Química; Universidad del Valle; Cali Colombia
| | - Jean-Marie Lehn
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg; 8 allée Gaspard Monge, BP 70028 67000 Strasbourg Cedex France
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89
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Jaegle M, Wong EL, Tauber C, Nawrotzky E, Arkona C, Rademann J. Proteintemplat-gesteuerte Fragmentligationen - von der molekularen Erkennung zur Wirkstofffindung. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 129:7464-7485. [PMID: 32313319 PMCID: PMC7159557 DOI: 10.1002/ange.201610372] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 01/10/2017] [Indexed: 12/28/2022]
Abstract
AbstractProteintemplat‐gesteuerte Fragmentligationen sind ein neuartiges Konzept zur Unterstützung der Wirkstofffindung und können dazu beitragen, die Wirksamkeit von Proteinliganden zu verbessern. Es handelt sich dabei um chemische Reaktionen zwischen niedermolekularen Verbindungen (“Fragmenten”), die die Oberfläche eines Proteins als Reaktionsgefäß verwenden, um die Bildung eines Proteinliganden mit erhöhter Bindungsaffinität zu katalysieren. Die Methode nutzt die molekulare Erkennung kleiner reaktiver Fragmente durch die Proteine sowohl zur Assemblierung der Liganden als auch zur Identifizierung bioaktiver Fragmentkombinationen. Chemische Synthese und Bioassay werden dabei in einem Schritt vereint. Dieser Aufsatz diskutiert die biophysikalischen Grundlagen der reversiblen und irreversiblen Fragmentligationen und gibt einen Überblick über die Methoden, mit denen die durch das Proteintemplat gebildeten Ligationsprodukte detektiert werden können. Der chemische Reaktionsraum und aktuelle Anwendungen wie auch die Bedeutung dieses Konzeptes für die Wirkstofffindung werden erörtert.
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Affiliation(s)
- Mike Jaegle
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Straße 2+4Berlin14195Deutschland
| | - Ee Lin Wong
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Straße 2+4Berlin14195Deutschland
| | - Carolin Tauber
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Straße 2+4Berlin14195Deutschland
| | - Eric Nawrotzky
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Straße 2+4Berlin14195Deutschland
| | - Christoph Arkona
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Straße 2+4Berlin14195Deutschland
| | - Jörg Rademann
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Straße 2+4Berlin14195Deutschland
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90
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Jaegle M, Wong EL, Tauber C, Nawrotzky E, Arkona C, Rademann J. Protein-Templated Fragment Ligations-From Molecular Recognition to Drug Discovery. Angew Chem Int Ed Engl 2017; 56:7358-7378. [PMID: 28117936 PMCID: PMC7159684 DOI: 10.1002/anie.201610372] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 01/10/2017] [Indexed: 12/14/2022]
Abstract
Protein-templated fragment ligation is a novel concept to support drug discovery and can help to improve the efficacy of protein ligands. Protein-templated fragment ligations are chemical reactions between small molecules ("fragments") utilizing a protein's surface as a reaction vessel to catalyze the formation of a protein ligand with increased binding affinity. The approach exploits the molecular recognition of reactive small-molecule fragments by proteins both for ligand assembly and for the identification of bioactive fragment combinations. In this way, chemical synthesis and bioassay are integrated in one single step. This Review discusses the biophysical basis of reversible and irreversible fragment ligations and gives an overview of the available methods to detect protein-templated ligation products. The chemical scope and recent applications as well as future potential of the concept in drug discovery are reviewed.
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Affiliation(s)
- Mike Jaegle
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Strasse 2+4Berlin14195Germany
| | - Ee Lin Wong
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Strasse 2+4Berlin14195Germany
| | - Carolin Tauber
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Strasse 2+4Berlin14195Germany
| | - Eric Nawrotzky
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Strasse 2+4Berlin14195Germany
| | - Christoph Arkona
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Strasse 2+4Berlin14195Germany
| | - Jörg Rademann
- Freie Universität BerlinMedicinal ChemistryKönigin-Luise-Strasse 2+4Berlin14195Germany
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91
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Ren G, Wang L, Chen Q, Xu Z, Xu J, Sun D. pH Switchable Emulsions Based on Dynamic Covalent Surfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3040-3046. [PMID: 28282144 DOI: 10.1021/acs.langmuir.6b04546] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Dynamic covalent surfactants were designed to prepare pH switchable emulsions. A dynamic covalent bond between nonamphiphilic building blocks (polyethylenimine (PEI) and benzaldehyde (B)) was introduced to form the dynamic covalent surfactant PEI-B. The dynamic nature of covalent bond in PEI-B was confirmed by 1H NMR and fluorescence probe analysis. Stable emulsions were successfully prepared with interfacial active PEI-B at pH 7.8 with various water/paraffin oil ratios under sonication. When lowering the pH to 3.5, a complete phase separation was observed as a result of breaking dynamic covalent bond in the interfacial active PEI-B. After tuning the pH back to 7.8, stable emulsion was obtained again due to the reformation of the dynamic covalent bond and hence interfacial active PEI-B. The emulsification and demulsification were dependent on the formation and breaking of dynamic covalent bond in PEI-B. Such pH-triggered emulsification and demulsification can be switched at least three times. Application of dynamic covalent surfactants will open up a novel route for preparing responsive emulsions.
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Affiliation(s)
- Gaihuan Ren
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan, Shandong 250100, People's Republic of China
| | - Lei Wang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan, Shandong 250100, People's Republic of China
| | - Qianqian Chen
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan, Shandong 250100, People's Republic of China
| | - Zhenghe Xu
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta T6G 2 V4, Canada
- Institute of Nuclear and New Energy Technology, Tsinghua University , Beijing 1000084, People's Republic of China
| | - Jian Xu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan, Shandong 250100, People's Republic of China
| | - Dejun Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University , Jinan, Shandong 250100, People's Republic of China
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92
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Valderrey V, Bonasera A, Fredrich S, Hecht S. Light-Activated Sensitive Probes for Amine Detection. Angew Chem Int Ed Engl 2017; 56:1914-1918. [PMID: 28090723 DOI: 10.1002/anie.201609989] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/18/2016] [Indexed: 12/29/2022]
Abstract
Our new, simple, and accurate colorimetric method is based on diarylethenes (DAEs) for the rapid detection of a wide range of primary and secondary amines. The probes consist of aldehyde- or ketone-substituted diarylethenes, which undergo an amine-induced decoloration reaction, selectively to give the ring-closed isomer. Thus, these probes can be activated at the desired moment by light irradiation, with a sensitivity that allows the detection of amines at concentrations as low as 10-6 m in solution. In addition, the practical immobilization of DAEs on paper makes it possible to detect biogenic amines, such as cadaverine, in the gas phase above a threshold of 12 ppbv within 30 seconds.
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Affiliation(s)
- Virginia Valderrey
- Institut für Chemie & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Aurelio Bonasera
- Institut für Chemie & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Sebastian Fredrich
- Institut für Chemie & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Stefan Hecht
- Institut für Chemie & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
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93
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Valderrey V, Bonasera A, Fredrich S, Hecht S. Lichtaktivierte Sensoren zur empfindlichen Amindetektion. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201609989] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Virginia Valderrey
- Institut für Chemie & IRIS Adlershof; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Aurelio Bonasera
- Institut für Chemie & IRIS Adlershof; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Sebastian Fredrich
- Institut für Chemie & IRIS Adlershof; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Stefan Hecht
- Institut für Chemie & IRIS Adlershof; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Deutschland
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94
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Palacio H, Otálvaro F, Giraldo LF, Ponchel G, Segura-Sánchez F. Chitosan-Acrylic Polymeric Nanoparticles with Dynamic Covalent Bonds. Synthesis and Stimuli Behavior. Chem Pharm Bull (Tokyo) 2017; 65:1132-1143. [DOI: 10.1248/cpb.c17-00624] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Herman Palacio
- Grupo de Investigación BIOPOLIMER, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia
| | - Felipe Otálvaro
- Grupo de Investigación Síntesis y Biosíntesis de Metabolitos Naturales, Instituto de Química, Universidad de Antioquia
| | - Luis Fernando Giraldo
- Laboratorio de Investigación en Polímeros, Instituto de Química, Universidad de Antioquia
| | | | - Freimar Segura-Sánchez
- Grupo de Investigación BIOPOLIMER, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia
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95
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Brisson ERL, Xiao Z, Franks GV, Connal LA. Versatile Synthesis of Amino Acid Functional Polymers without Protection Group Chemistry. Biomacromolecules 2016; 18:272-280. [DOI: 10.1021/acs.biomac.6b01618] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emma R. L. Brisson
- Department of Chemical and
Biomolecular Engineering and Particulate
Fluids Processing Centre, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Zeyun Xiao
- Department of Chemical and
Biomolecular Engineering and Particulate
Fluids Processing Centre, The University of Melbourne, Parkville, VIC 3010, Australia
| | - George V. Franks
- Department of Chemical and
Biomolecular Engineering and Particulate
Fluids Processing Centre, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Luke A. Connal
- Department of Chemical and
Biomolecular Engineering and Particulate
Fluids Processing Centre, The University of Melbourne, Parkville, VIC 3010, Australia
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96
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Yu Z, Tantakitti F, Yu T, Palmer LC, Schatz GC, Stupp SI. Simultaneous covalent and noncovalent hybrid polymerizations. Science 2016; 351:497-502. [PMID: 26823427 DOI: 10.1126/science.aad4091] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Covalent and supramolecular polymers are two distinct forms of soft matter, composed of long chains of covalently and noncovalently linked structural units, respectively. We report a hybrid system formed by simultaneous covalent and supramolecular polymerizations of monomers. The process yields cylindrical fibers of uniform diameter that contain covalent and supramolecular compartments, a morphology not observed when the two polymers are formed independently. The covalent polymer has a rigid aromatic imine backbone with helicoidal conformation, and its alkylated peptide side chains are structurally identical to the monomer molecules of supramolecular polymers. In the hybrid system, covalent chains grow to higher average molar mass relative to chains formed via the same polymerization in the absence of a supramolecular compartment. The supramolecular compartments can be reversibly removed and re-formed to reconstitute the hybrid structure, suggesting soft materials with novel delivery or repair functions.
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Affiliation(s)
- Zhilin Yu
- Department of Chemistry, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA
| | - Faifan Tantakitti
- Department of Materials and Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA
| | - Tao Yu
- Department of Chemistry, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA. Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th floor, Chicago, IL 60611, USA
| | - George C Schatz
- Department of Chemistry, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA. Department of Chemical and Biological Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA. Department of Materials and Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA. Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th floor, Chicago, IL 60611, USA. Department of Medicine, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA. Department of Biomedical Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA.
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97
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Mikhailov SN, Zakharova AN, Drenichev MS, Ershov AV, Kasatkina MA, Vladimirov LV, Novikov VV, Kildeeva NR. Crosslinking of Chitosan with Dialdehyde Derivatives of Nucleosides and Nucleotides. Mechanism and Comparison with Glutaraldehyde. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2016; 35:114-29. [PMID: 26855085 DOI: 10.1080/15257770.2015.1114132] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
In medical and pharmaceutical applications, chitosan is used as a component of hydrogels-macromolecular networks swollen in water. Chemical hydrogels are formed by covalent links between the crosslinking reagents and amino functionalities of chitosan. To date, the most commonly used chitosan crosslinkers are dialdehydes, such as glutaraldehyde (GA). We have developed novel GA like crosslinkers with additional functional groups-dialdehyde derivatives of uridine (oUrd) and nucleotides (oUMP and oAMP)-leading to chitosan-based biomaterials with new properties. The process of chitosan crosslinking was investigated in details and compared to crosslinking with GA. The rates of crosslinking with oUMP, oAMP, and GA were essentially the same, though much higher than in the case of oUrd. The remarkable difference in the crosslinking properties of nucleoside and nucleotide dialdehydes can be clearly attributed to the presence of the phosphate group in nucleotides that participates in the gelation process through ionic interactions with the amino groups of chitosan. Using NMR spectroscopy, we have not observed the formation of aldimine bonds. It can be concluded that the real number of crosslinks needed to cause gelation of chitosan chains may be less than 1%.
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Affiliation(s)
- Sergey N Mikhailov
- a Engelhardt Institute of Molecular Biology, Russian Academy of Sciences , Vavilov St 32, Moscow 119991 , Russia
| | - Alexandra N Zakharova
- a Engelhardt Institute of Molecular Biology, Russian Academy of Sciences , Vavilov St 32, Moscow 119991 , Russia
| | - Mikhail S Drenichev
- a Engelhardt Institute of Molecular Biology, Russian Academy of Sciences , Vavilov St 32, Moscow 119991 , Russia
| | - Andrey V Ershov
- a Engelhardt Institute of Molecular Biology, Russian Academy of Sciences , Vavilov St 32, Moscow 119991 , Russia
| | - Mariya A Kasatkina
- b Department of Chemical Technology and Industrial Ecology , Moscow State University of Design and Technology , Sadovnicheskaya St 33/1, Moscow 117997 , Russia
| | - Leonid V Vladimirov
- c Semenov Institute of Chemical Physics, Russian Academy of Sciences , Kosygin St 4, Moscow 119991 , Russia
| | - Valentin V Novikov
- d Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov St 28, Moscow 119991 , Russia
| | - Natalia R Kildeeva
- b Department of Chemical Technology and Industrial Ecology , Moscow State University of Design and Technology , Sadovnicheskaya St 33/1, Moscow 117997 , Russia
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98
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Kaya Y, Yilmaz VT, Buyukgungor O. Synthesis, Spectroscopic, Structural and Quantum Chemical Studies of a New Imine Oxime and Its Palladium(II) Complex: Hydrolysis Mechanism. Molecules 2016; 21:E52. [PMID: 26805795 PMCID: PMC6274148 DOI: 10.3390/molecules21010052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 12/18/2015] [Accepted: 12/22/2015] [Indexed: 11/17/2022] Open
Abstract
In this work, we report synthesis, crystallographic, spectroscopic and quantum chemical studies of a new imine oxime, namely (4-nitro-phenyl)-(1-phenyl-ethylimino)-acetaldehyde oxime (nppeieoH). Spectroscopic and X-ray diffraction studies showed that nppeieoH is hydrolyzed in aqueous solution, forming nitroisonitrosoacetophenone (ninap) and the hydrolysis product binds to Pd(II) to yield [Pd(nppeieo)(ninap)]. The mechanism of the hydrolysis reaction has been theoretically investigated in detail, using density functional theory (DFT) with the B3LYP method. The vibrational and the electronic spectra of nppeieoH and its Pd(II) complex, the HOMO and LUMO analysis, Mulliken atomic charges and molecular electrostatic potential were also performed. The predicted nonlinear optical properties of both compounds are higher than those of urea.
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Affiliation(s)
- Yunus Kaya
- Department of Chemistry, Faculty of Arts and Sciences, Uludag University, Bursa 16059, Turkey.
| | - Veysel T Yilmaz
- Department of Chemistry, Faculty of Arts and Sciences, Uludag University, Bursa 16059, Turkey.
| | - Orhan Buyukgungor
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, Samsun 55139, Turkey.
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99
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A Long-Chain Alkylation of Dialdehyde Starch to Improve Its Thermal Stability and Hydrophobicity. J CHEM-NY 2016. [DOI: 10.1155/2016/6095023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Hydrophobic dialdehyde starch (HDAS) was synthesized by dialdehyde starch (DAS) and eighteen-alkyl primary amine as the raw material in DMSO. The effect of the reaction conditions on the yield of HDAS was investigated such as catalyst content, reaction temperature, reaction time, and the in-feed molar ratio of -CHO/-NH2. Moreover, the optimized test parameters were obtained by conducting orthogonal experiment. The molecular structure and the morphology of HDAS were characterized via Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM). And the thermal stability and the hydrophobic properties of HDAS were investigated by thermal gravimetric analyzer (TG) and the hydrophobic testing. The results indicate that the yield of HDAS is the highest up to 44.21%, with feed composition 1 : 0.9, reaction temperature 40°C, reaction time 8 h, and acetic acid content 3%. And the introduction of the long-chain alkyl groups into the DAS backbones will ameliorate efficaciously the thermal stability and the hydrophobic properties of DAS, which almost has no effect on the DAS particle size.
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Deng J, Liu X, Ma L, Cheng C, Sun S, Zhao C. Switching biological functionalities of biointerfaces via dynamic covalent bonds. J Mater Chem B 2016; 4:694-703. [DOI: 10.1039/c5tb02072g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We construct a stimuli responsive biointerface via a dynamic covalent bond that could switch its surface biofunctionalities on demand. The switchability is achieved via reversible attaching/detaching of aldehyde end-functionalized biomacromolecules.
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Affiliation(s)
- Jie Deng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Xinyue Liu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Lang Ma
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Chong Cheng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Shudong Sun
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Changsheng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials and Engineering
- Sichuan University
- Chengdu 610065
- China
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