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Caminade AM. Interplay between Nanoparticles and Phosphorus Dendrimers, and Their Properties. Molecules 2023; 28:5739. [PMID: 37570709 PMCID: PMC10420008 DOI: 10.3390/molecules28155739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
This review presents the state of the art of interactions between two different families of nanoobjects: nanoparticles-mainly metal nanoparticles, and dendrimers-mainly phosphorhydrazone dendrimers (or dendrons). The review firstly presents the encapsulation/protection of existing nanoparticles (organic or metallic) by phosphorus-based dendrimers and dendrons. In the second part, several methods for the synthesis of metal nanoparticles, thanks to the dendrimer that acts as a template, are presented. The properties of the associations between dendrimers and nanoparticles are emphasized throughout the review. These properties mainly concern the elaboration of diverse types of hybrid materials, some of them being used as sensitive chemosensors or biosensors. Several examples concerning catalysis are also given, displaying in particular the efficient recovery and reuse of the catalytic entities.
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Affiliation(s)
- Anne-Marie Caminade
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France;
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France
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2
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Astruc D. From sandwich complexes to dendrimers: journey toward applications to sensing, molecular electronics, materials science, and biomedicine. Chem Commun (Camb) 2023. [PMID: 37191211 DOI: 10.1039/d3cc01175e] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
This review links various areas of inorganic chemistry around the themes developed by our research group during the last four decades. It is firstly based on the electronic structure of iron sandwich complexes, showing how the metal electron count dictates their reactivities, with various applications (via C-H activation, C-C bond formation) as reducing and oxidizing agents, redox and electrocatalysts and precursors of dendrimers and catalyst templates through bursting reactions. Various electron-transfer processes and consequences are explored, including the influence of the redox state on the acidity of robust ligands and the possibility to iterate in situ C-H activation and C-C bond formation to build arene-cored dendrimers. Examples of how these dendrimers are functionalized are illustrated using the cross olefin metathesis reactions, with application to the synthesis of soft nanomaterials and biomaterials. Mixed and average valence complexes give rise to remarkable subsequent organometallic reactions, including the salt influence on these reactions. The stereo-electronic aspect of these mixed valencies is pointed out in star-shaped multi-ferrocenes with a frustration effect and other multi-organoiron systems, with the perspective of understanding electron-transfer processes among dendrimer redox sites involving electrostatic effects and application to redox sensing and polymer metallocene batteries. Dendritic redox sensing is summarized for biologically relevant anions such as ATP2- with supramolecular exoreceptor interactions at the dendrimer periphery in parallel with the seminal work on metallocene-derived endoreceptors by Beer's group. This aspect includes the design of the first metallodendrimers that have applications in both redox sensing and micellar catalysis with nanoparticles. These properties provide the opportunity to summarize the biomedical (mostly anticancer) applications of ferrocenes, dendrimers and dendritic ferrocenes in biomedicine (in particular the contribution from our group, but not only). Finally, the use of dendrimers as templates for catalysis is illustrated with numerous reactions including C-C bond formation, click reactions and H2 production reactions.
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Affiliation(s)
- Didier Astruc
- Univ. Bordeaux, ISM, UMR CNRS No. 5255, 351 Cours de la Libération, 33405 Talence Cedex, France.
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3
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Sheveleva NN, Komolkin AV, Markelov DA. Influence of the Chemical Structure on the Mechanical Relaxation of Dendrimers. Polymers (Basel) 2023; 15:polym15040833. [PMID: 36850117 PMCID: PMC9965359 DOI: 10.3390/polym15040833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
The rheological properties of macromolecules represent one of the fundamental features of polymer systems which expand the possibilities of using and developing new materials based on them. In this work, we studied the shear-stress relaxation of the second generation PAMAM and PPI dendrimer melts by atomistic molecular dynamics simulation. The time dependences of relaxation modulus G(t) and the frequency dependences of the storage G'(ω) and loss G″(ω) moduli were obtained. The results were compared with the similar dependences for the polycarbosilane (PCS) dendrimer of the same generation. The chemical structure of the dendrimer segments has been found to strongly influence their mechanical relaxation. In particular, it has been shown that hydrogen bonding in PAMAM dendrimers leads to an entanglement of macromolecules and the region is observed where G'(ω) > G″(ω). This slows down the mechanical relaxation and rotational diffusion of macromolecules. We believe that our comprehensive research contributes to the systematization of knowledge about the rheological properties of dendrimers.
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4
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Wang W, Ruiz J, Ornelas C, Hamon JR. A Career in Catalysis: Didier Astruc. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Wenjuan Wang
- Univ. Bordeaux, ISM UMR N°5255, 351 Cours de la Libération, 33405 Cedex Talence, France
- Univ. Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)−UMR 6226, F-35000 Rennes, France
| | - Jaime Ruiz
- Univ. Bordeaux, ISM UMR N°5255, 351 Cours de la Libération, 33405 Cedex Talence, France
| | - Catia Ornelas
- Institute of Chemistry, Rua Josué de Castro, Cidade Universitaria Zeferino Vaz, University of Campinas, Campinas, 13083-970 São Paulo, Brazil
| | - Jean-René Hamon
- Univ. Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)−UMR 6226, F-35000 Rennes, France
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5
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Garzón-Porras AM, Bertuzzi DL, Lucas K, Ornelas C. Well-Defined Bifunctional Dendrimer Bearing 54 Nitric Oxide-Releasing Moieties and 54 Ursodeoxycholic Acid Groups Presenting High Anti-Inflammatory Activity. ACS Biomater Sci Eng 2022; 8:5171-5187. [PMID: 36413181 DOI: 10.1021/acsbiomaterials.2c00713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Nitric oxide (NO) and ursodeoxycholic acid (UDCA) are endogenous molecules involved in physiological processes associated with inflammation. Since inflammatory processes are present in the mechanisms of many diseases, these molecules are important for the development of new drugs. Herein, we describe the synthesis of a well-defined bifunctional dendrimer with 108 termini bearing 54 NO-releasing groups and 54 UDCA units (Dendri-(NO/UDCA)54). For comparison, a lower-generation dendrimer bearing 18 NO-releasing groups and 18 UDCA units (Dendri-(NO/UDCA)18) was also synthesized. The anti-inflammatory activity of these dendrimers was evaluated, showing that the bifunctional dendrimers have an inverse correlation between concentration and anti-inflammatory activity, with an effect dramatically pronounced for Dendri-(NO/UDCA)54 20, which at just 0.25 nM inhibited 76.1% of IL-8 secretion. Data suggest that nanomolar concentrations of these dendrimers aid in releasing NO in a safe and controlled way. This bifunctional dendrimer has great potential as a drug against multifactorial diseases associated with inflammatory processes.
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Affiliation(s)
- Ana M Garzón-Porras
- Institute of Chemistry, University of Campinas─UNICAMP, 13083-861 Campinas, SP, Brazil.,Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, D-55128 Mainz, Germany
| | - Diego L Bertuzzi
- Institute of Chemistry, University of Campinas─UNICAMP, 13083-861 Campinas, SP, Brazil
| | - Kurt Lucas
- Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, D-55128 Mainz, Germany
| | - Catia Ornelas
- Institute of Chemistry, University of Campinas─UNICAMP, 13083-861 Campinas, SP, Brazil
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6
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Synthesis, dynamics and applications (cytotoxicity and biocompatibility) of dendrimers: a mini-review. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Nazli A, He DL, Liao D, Khan MZI, Huang C, He Y. Strategies and progresses for enhancing targeted antibiotic delivery. Adv Drug Deliv Rev 2022; 189:114502. [PMID: 35998828 DOI: 10.1016/j.addr.2022.114502] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 08/10/2022] [Accepted: 08/16/2022] [Indexed: 01/24/2023]
Abstract
Antibiotic resistance is a global health issue and a potential risk for society. Antibiotics administered through conventional formulations are devoid of targeting effect and often spread to various undesired body sites, leading to sub-lethal concentrations at the site of action and thus resulting in emergence of resistance, as well as side effects. Moreover, we have a very slim antibiotic pipeline. Drug-delivery systems have been designed to control the rate, time, and site of drug release, and innovative approaches for antibiotic delivery provide a glint of hope for addressing these issues. This review elaborates different delivery strategies and approaches employed to overcome the limitations of conventional antibiotic therapy. These include antibiotic conjugates, prodrugs, and nanocarriers for local and targeted antibiotic release. In addition, a wide range of stimuli-responsive nanocarriers and biological carriers for targeted antibiotic delivery are discussed. The potential advantages and limitations of targeted antibiotic delivery strategies are described along with possible solutions to avoid these limitations. A number of antibiotics successfully delivered through these approaches with attained outcomes and potentials are reviewed.
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Affiliation(s)
- Adila Nazli
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - David L He
- College of Chemistry, University of California, Berkeley, CA 94720, United States
| | - Dandan Liao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | | | - Chao Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China.
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China.
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8
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Specific Bifunctionalization on the Surface of Phosphorus Dendrimers Syntheses and Properties. ORGANICS 2022. [DOI: 10.3390/org3030018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dendrimers are highly branched macromolecules possessing, in most cases, identical terminal functions. However, it is sometimes desirable to have two types of surface functions in order to fulfil specific properties. The stochastic functionalization is frequently used for such purposes, but the presence of an uncontrolled number of each type of terminal function, albeit acceptable for research purposes, has no practical use. Thus, it is highly desirable to find strategies suitable for the precise grafting of two different functional groups on the surface of dendrimers. The easiest way, and the most widely used, consists in using a bifunctional monomer to be grafted to all of the surface functions of the dendrimers. Two other strategies are known but are rarely used: the modification of an existing function, to generate two functions, and the sequential grafting of one function then of a second function. The three methods are illustrated in this review with polyphosphorhydrazone (PPH) dendrimers, together with their properties as catalysts, for materials, and as biological tools.
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9
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Perli G, Bertuzzi DL, Souto DEP, Ramos MD, Braga CB, Aguiar SB, Ornelas C. Synthesis and Characterization of Dendronized Gold Nanoparticles Bearing Charged Peripheral Groups with Antimicrobial Potential. NANOMATERIALS 2022; 12:nano12152610. [PMID: 35957042 PMCID: PMC9370457 DOI: 10.3390/nano12152610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022]
Abstract
Dendronized gold nanoparticles (AuNPs) were synthesized bearing charged peripheral groups. Two novel AB3-type dendrons were synthesized with a thiol group at the focal point followed by their attachment to AuNPs. Dendrons were designed to have nine charged peripheral groups (carboxyl or amine), glycol solubilizing, units and one thiol moiety at the focal point. Both dendrons and all intermediates were synthesized in high yields and characterized by nuclear magnetic resonance spectroscopy (NMR) and mass spectrometry (MS). The amine- and carboxyl-terminated dendrons were used to functionalize gold nanoparticles (AuNPs) previously stabilized with citrate. The nanoparticles’ diameters and their colloidal stability were investigated using dynamic light scattering (DLS). The size and morphology of the dendronized AuNPs were evaluated by scanning electron microscopy (SEM), which revealed individual particles with no aggregation after replacement of citrate by the dendrons, in agreement with the DLS data. The absorption spectroscopy reveals a prominent plasmonic band at 560 nm for all AuNPs. The zeta potential further confirmed the expected charged structures of the dendronized AuNPs. Considering all the physical–chemical properties of the charged dendronized AuNPs developed in this work, these AuNPs might be used as a weapon against multi-drug resistant bacterial infections.
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Affiliation(s)
- Gabriel Perli
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Diego L. Bertuzzi
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Dênio E. P. Souto
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
- Laboratorio de Espectrometria, Sensores e Biossensores, Departamento de Quimica, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, Brazil
| | - Miguel D. Ramos
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Carolyne B. Braga
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Samile B. Aguiar
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Catia Ornelas
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
- Correspondence:
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10
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Fernandes T, Daniel-da-Silva AL, Trindade T. Metal-dendrimer hybrid nanomaterials for sensing applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Albrecht K, Taguchi M, Tsukamoto T, Moriai T, Yoshida N, Yamamoto K. Poly-phenylene jacketed tailor-made dendritic phenylazomethine ligand for nanoparticle synthesis. Chem Sci 2022; 13:5813-5817. [PMID: 35685784 PMCID: PMC9132029 DOI: 10.1039/d1sc05661a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 03/05/2022] [Indexed: 11/21/2022] Open
Abstract
Synthesizing metal clusters with a specific number of atoms on a preparative scale for studying advanced properties is still a challenge. The dendrimer templated method is powerful for synthesizing size or atomicity controlled nanoparticles. However, not all atomicity is accessible with conventional dendrimers. A new tailor-made phenylazomethine dendrimer (DPA) with a limited number of coordination sites (n = 16) and a non-coordinating large poly-phenylene shell was designed to tackle this problem. The asymmetric dendron and adamantane core four substituted dendrimer (PPDPA16) were successfully synthesized. The coordination behavior confirmed the accumulation of 16 metal Lewis acids (RhCl3, RuCl3, and SnBr2) to PPDPA16. After the reduction of the complex, low valent metal nanoparticles with controlled size were obtained. The tailor-made dendrimer is a promising approach to synthesize a variety of metal clusters with desired atomicity.
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Affiliation(s)
- Ken Albrecht
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan .,JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research (IIR), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan.,Institute for Materials Chemistry, Engineering Kyushu University 6-1 Kasuga-Koen Kasuga-shi 816-8580 Fukuoka Japan
| | - Maki Taguchi
- JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research (IIR), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Takamasa Tsukamoto
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan .,JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research (IIR), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Tatsuya Moriai
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Nozomi Yoshida
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology Yokohama 226-8503 Japan .,JST-ERATO, Yamamoto Atom Hybrid Project, Institute of Innovative Research (IIR), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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12
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13
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Bertuzzi DL, Morris MA, Braga CB, Olsen BD, Ornelas C. Synthesis of a Series of Folate-Terminated Dendrimer- b-PNIPAM Diblock Copolymers: Soft Nanoelements That Self-Assemble into Thermo- and pH-Responsive Spherical Nanocompounds. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Diego L. Bertuzzi
- Institute of Chemistry, University of Campinas - Unicamp, Campinas, 13083-861 São Paulo, Brazil
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Melody A. Morris
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Carolyne B. Braga
- Institute of Chemistry, University of Campinas - Unicamp, Campinas, 13083-861 São Paulo, Brazil
| | - Bradley D. Olsen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Catia Ornelas
- Institute of Chemistry, University of Campinas - Unicamp, Campinas, 13083-861 São Paulo, Brazil
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Karakhanov E, Maximov A, Zolotukhina A. Heterogeneous Dendrimer-Based Catalysts. Polymers (Basel) 2022; 14:polym14050981. [PMID: 35267800 PMCID: PMC8912888 DOI: 10.3390/polym14050981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
The present review compiles the advances in the dendritic catalysis within the last two decades, in particular concerning heterogeneous dendrimer-based catalysts and their and application in various processes, such as hydrogenation, oxidation, cross-coupling reactions, etc. There are considered three main approaches to the synthesis of immobilized heterogeneous dendrimer-based catalysts: (1) impregnation/adsorption on silica or carbon carriers; (2) dendrimer covalent grafting to various supports (silica, polystyrene, carbon nanotubes, porous aromatic frameworks, etc.), which may be performed in a divergent (as a gradual dendron growth on the support) or convergent way (as a grafting of whole dendrimer to the support); and (3) dendrimer cross-linking, using transition metal ions (resulting in coordination polymer networks) or bifunctional organic linkers, whose size, polarity, and rigidity define the properties of the resulted material. Additionally, magnetically separable dendritic catalysts, which can be synthesized using the three above-mentioned approaches, are also considered. Dendritic catalysts, synthesized in such ways, can be stored as powders and be easily separated from the reaction medium by filtration/centrifugation as traditional heterogeneous catalysts, maintaining efficiency as for homogeneous dendritic catalysts.
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Affiliation(s)
- Eduard Karakhanov
- Department of Petroleum Chemistry and Organic Catalysis, Moscow State University, 119991 Moscow, Russia;
| | - Anton Maximov
- Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia;
| | - Anna Zolotukhina
- Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia;
- Correspondence:
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15
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Bertuzzi DL, Braga CB, Perli G, Ornelas C. Water‐Soluble Well‐Defined Bifunctional Ferrocenyl Dendrimer with Anti‐Cancer Activity. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202101084] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Diego L. Bertuzzi
- Department: Institute of Chemistry University of Campinas – Unicamp Josué de Castro, A5–106, Cidade Universitária Campinas 13083–861 São Paulo Brazil
| | - Carolyne B. Braga
- Department: Institute of Chemistry University of Campinas – Unicamp Josué de Castro, A5–106, Cidade Universitária Campinas 13083–861 São Paulo Brazil
| | - Gabriel Perli
- Department: Institute of Chemistry University of Campinas – Unicamp Josué de Castro, A5–106, Cidade Universitária Campinas 13083–861 São Paulo Brazil
| | - Catia Ornelas
- Department: Institute of Chemistry University of Campinas – Unicamp Josué de Castro, A5–106, Cidade Universitária Campinas 13083–861 São Paulo Brazil
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16
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Vonlanthen M, Cuétara-Guadarrama F, Porcu P, Sorroza-Martínez K, González-Méndez I, Rivera E. Dendronized Porphyrins: Molecular Design and Synthesis. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220126121801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
In this review, we report different methods and strategies to synthesize flexible and rigid dendronized porphyrins. We will focus on porphyrin dendrimers that have been reported in the last 10 years. Particularly, in our research group, we have designed and synthesized different series of dendronized porphyrins (free base and metallated) with pyrene units at the periphery and Fréchet-type dendritic arms. The Lindsey methodology has allowed the synthesis of meso-substituted porphyrins with various substitution patterns, such as symmetric, dissymmetric, or unsymmetric. Porphyrin dendrimers have been prepared by different synthetic methodologies; one of the most reported being the convergent method, where the dendrons are first prepared and further linked to a meso-substituted functionalized porphyrin unit, which will constitute the core of the dendrimer. Another interesting synthetic approach is the use of a reactive dendron bearing a terminal aldehyde functional group to form the final porphyrin core. In this way, a two-armed dendronized dissymmetric porphyrin core can be prepared from a dendritic precursor and a dipyrromethene derivative. This strategy is very convenient to prepare low-generation dendritic porphyrins. The divergent approach is another well-known methodology for porphyrin dendrimer synthesis, mostly used for the obtainment of high-generation dendrimers. Click chemistry reaction has been advantageous for the development of more complex porphyrin dendritic structures. This reaction presents important advantages, such as high yields and mild reaction conditions which permit the assembly of different multiporphyrin dendritic structures. In the constructs presented in this review, the emission of the porphyrin moiety has been observed, leading to potential applications in artificial photosynthesis, sensing, nanomedicine, and biological sciences.
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Affiliation(s)
- Mireille Vonlanthen
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Fabián Cuétara-Guadarrama
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Pasquale Porcu
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Kendra Sorroza-Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Israel González-Méndez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
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Jiang Z, Wu T, Li Y, Wang J, Chen M, Su P, Zhang Z, Xie T, Wang P. Organic-Ru2+ Cluster Initiated Dendritic-faced Metallo-Octahedron and Its Unpredictable Photoactivity. Chem Commun (Camb) 2022; 58:6344-6347. [DOI: 10.1039/d2cc00366j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a novel 3D metal-organic ligand consists of a folded Ru(II) connected tetrameric cycle and two sets of 60° juxtaposed bisterpyridine arms was synthesized and its complexation with Zn2+ gave...
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18
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Li Z, Li Z, Hu J, Feng X, Zhang M, Duan G, Zhang R, Li Y. Self-Assembly of Poly(Janus particle)s into Unimolecular and Oligomeric Spherical Micelles. ACS Macro Lett 2021; 10:1563-1569. [PMID: 35549135 DOI: 10.1021/acsmacrolett.1c00620] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Using shape-persistent Janus particles to construct poly(Janus particle)s and studying their self-assembly behaviors are of great interest, but remain largely unexplored. In this work, we reported a type of amphiphiles constructed by the ring-opening metathesis polymerization of nonspherical molecular Janus particles (APOSS-BPOSS), called poly(Janus particle)s (poly(APOSS-BPOSS)n, n = 12, 17, 22, and 35, and Mn = 35-100 kg/mol). Unlike traditional bottlebrush polymers consisting of flexible side chains, these poly(Janus particles) consist of rigid hydrophilic and hydrophobic polyhedral oligomeric silsesquioxane (POSS) cages as side chains. Interestingly, instead of maintaining an expected extended chain conformation, they could also collapse and then self-assemble to form unconventional unimolecular or oligomeric spherical micelles in solutions with a feature size smaller than 7 nm. More importantly, unlike traditional amphiphilic polymer brushes that could form unimolecular micelles at a relatively high degree of polymerization by self-assembly, these poly(Janus particles)s could accomplish self-assembly at a quite low degree of polymerization because of their unique chemical structure and molecular topology. The formation of unimolecular and oligomeric micelles was also further confirmed by dissipative particle dynamics simulations. This study of introducing the POSS-based poly(Janus particle)s as a class of shape amphiphiles will provide a model system for generating unimolecular and oligomeric micellar nanostructures through solution self-assembly.
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Affiliation(s)
- Zhan Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zongxin Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Junfei Hu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Xingwei Feng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Minghua Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Gaigai Duan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Ruimeng Zhang
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208 United States
| | - Yiwen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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19
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Singh P, Hirsch A. Extended EDTA Bola‐Amphiphile: Putrescine‐Based 2G Dendron Functionalized with Perylene Diimide. ChemistrySelect 2021. [DOI: 10.1002/slct.202102933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Prabhpreet Singh
- Department of Chemistry UGC Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143001 pb.) India
| | - Andreas Hirsch
- Department of Chemistry and Pharmacy and Institute of Advanced Materials and Processes (ZMP) Friedrich-Alexander University Erlangen – Nürnberg Henkestrasse 42 91054 Erlangen Germany
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20
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Apartsin E, Caminade AM. Supramolecular Self-Associations of Amphiphilic Dendrons and Their Properties. Chemistry 2021; 27:17976-17998. [PMID: 34713506 PMCID: PMC9298340 DOI: 10.1002/chem.202102589] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Indexed: 12/15/2022]
Abstract
This review presents precisely defined amphiphilic dendrons, their self‐association properties, and their different uses. Dendrons, also named dendritic wedges, are composed of a core having two different types of functions, of which one type is used for growing or grafting branched arms, generally multiplied by 2 at each layer by using 1→2 branching motifs. A large diversity of structures has been already synthesized. In practically all cases, their synthesis is based on the synthesis of known dendrimers, such as poly(aryl ether), poly(amidoamine) (in particular PAMAM), poly(amide) (in particular poly(L‐lysine)), 1→3 branching motifs (instead of 1→2), poly(alkyl ether) (poly(glycerol) and poly(ethylene glycol)), poly(ester), and those containing main group elements (poly(carbosilane) and poly(phosphorhydrazone)). In most cases, the hydrophilic functions are on the surface of the dendrons, whereas one or two hydrophobic tails are linked to the core. Depending on the structure of the dendrons, and on the experimental conditions used, the amphiphilic dendrons can self‐associate at the air‐water interface, or form micelles (eventually tubular, but most generally spherical), or form vesicles. These associated dendrons are suitable for the encapsulation of low‐molecular or macromolecular bioactive entities to be delivered in cells. This review is organized depending on the nature of the internal structure of the amphiphilic dendrons (aryl ether, amidoamine, amide, quaternary carbon atom, alkyl ether, ester, main group element). The properties issued from their self‐associations are described all along the review.
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Affiliation(s)
- Evgeny Apartsin
- Laboratoire de Chimie de Coordination (LCC) CNRS, 205 route de Narbonne, 31077, Toulouse cedex 4, France.,LCC-CNRS, Université de Toulouse, CNRS, 31077, Toulouse cedex 4, France.,Institute of Chemical Biology and Fundamental Medicine, 630090, Novosibirsk, Russia.,Novosibirsk State University, 630090, Novosibirsk, Russia
| | - Anne-Marie Caminade
- Laboratoire de Chimie de Coordination (LCC) CNRS, 205 route de Narbonne, 31077, Toulouse cedex 4, France.,LCC-CNRS, Université de Toulouse, CNRS, 31077, Toulouse cedex 4, France
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21
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Li C, Li R, Xu Z, Li J, Zhang X, Li N, Zhang Y, Shen Z, Tang H, Wang Y. Packing Biomolecules into Sierpiński Triangles with Global Organizational Chirality. J Am Chem Soc 2021; 143:14417-14421. [PMID: 34387475 DOI: 10.1021/jacs.1c05949] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Fractals are found in nature and play important roles in biological functions. However, it is challenging to controllably prepare biomolecule fractals. In this study, a series of Sierpiński triangles with global organizational chirality is successfully constructed by the coassembly of l-tryptophan and 1,3-bi(4-pyridyl)benzene molecules on Ag(111). The chirality is switched when replacing l-tryptophan by d-tryptophan. The fractal structures are characterized by low-temperature scanning tunneling microscopy at the single-molecule level. Density functional theory calculations reveal that intermolecular hydrogen bonds stabilize the Sierpiński triangles.
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Affiliation(s)
- Chao Li
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China
| | - Ruoning Li
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China
| | - Zhen Xu
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China
| | - Jie Li
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China
| | - Xue Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China
| | - Na Li
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China
| | - Yajie Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China
| | - Ziyong Shen
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China
| | - Hao Tang
- CEMES-CNRS, Boîte Postale 94347, 31055 Toulouse, France
| | - Yongfeng Wang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, Department of Electronics, Peking University, Beijing 100871, China.,Beijing Academy of Quantum Information Sciences, Beijing 100193, China
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22
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Wang W, Chamkina ES, Guisasola Cal E, Di Silvio D, Moro MM, Moya S, Hamon JR, Astruc D, Shifrina ZB. Ferrocenyl-terminated polyphenylene-type "click" dendrimers as supports for efficient gold and palladium nanocatalysis. Dalton Trans 2021; 50:11852-11860. [PMID: 34369506 DOI: 10.1039/d1dt01865e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Although dendrimer supports have been known as key parts of nanocatalysts, the capability of rigid dendrimers for this function has not yet been reported. Here, the study is focused on ferrocenylmethylenetriazolyl-terminated dendrimers (FcMTPD) as supports of remarkably efficient nanogold and nanopalladium catalysts. A biphasic system is elaborated to evaluate the catalytic activity of FcMTPD-supported Au and Pd nanoparticles (NPs) for the reduction of 4-nitrophenol to 4-aminophenol by NaBH4 at 20 °C, and FcMTPD-supported PdNPs are found to be the best nanocatalysts with a rate constant kapp = 7.8 × 10-2 s-1. Excellent catalytic results are also obtained in this reaction for FcMTPD-supported AuNPs with a rate constant kapp = 5.6 × 10-2 s-1. For both Pd NPs and AuNPs, the kinetic results are shown to strongly depend on the method of preparation of these NPs that influences the NP size and thus their catalytic efficiency. The FcMTPD-stabilized PdNPs are easily recovered and reused at least 13 times, and their catalytic performance displays only a slight decrease during the first seven runs.
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Affiliation(s)
- Wenjuan Wang
- Univ. Bordeaux, ISM, UMR CNRS 5255, 33405 Talence Cedex, France.
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23
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Gao S, Liu Y, Wang L, Wang Z, Liu P, Gao J, Jiang Y. Incorporation of Metals and Enzymes with Porous Imine Molecule Cages for Highly Efficient Semiheterogeneous Chemoenzymatic Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00587] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shiqi Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yunting Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Lihui Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Department of Biochemical Engineering, Tianjin Modern Vocational Technology College, No. 3 Yaguan Road, Jinnan District, Tianjin 300350, China
| | - Zihan Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Pengbo Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
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24
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Alami O, Laurent R, Majoral JP, El Brahmi N, El Kazzouli S, Caminade AM. Copper complexes of phosphorus dendrimers and their properties. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Straßburger D, Herziger S, Huth K, Urschbach M, Haag R, Besenius P. Supramolecular polymerization of sulfated dendritic peptide amphiphiles into multivalent L-selectin binders. Beilstein J Org Chem 2021; 17:97-104. [PMID: 33519996 PMCID: PMC7814183 DOI: 10.3762/bjoc.17.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/14/2020] [Indexed: 11/23/2022] Open
Abstract
The synthesis of a sulfate-modified dendritic peptide amphiphile and its self-assembly into one-dimensional rod-like architectures in aqueous medium is reported. The influence of the ionic strength on the supramolecular polymerization was probed via circular dichroism spectroscopy and cryogenic transmission electron microscopy. Physiological salt concentrations efficiently screen the charges of the dendritic building block equipped with eight sulfate groups and trigger the formation of rigid supramolecular polymers. Since multivalent sulfated supramolecular structures mimic naturally occurring L-selectin ligands, the corresponding affinity was evaluated using a competitive SPR binding assay and benchmarked to an ethylene glycol-decorated supramolecular polymer.
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Affiliation(s)
- David Straßburger
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Svenja Herziger
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany.,Research Center of Electron Microscopy, Freie Universität Berlin, Fabeckstr. 34a, 14195 Berlin
| | - Katharina Huth
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Moritz Urschbach
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Pol Besenius
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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26
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Wang C, Wang Q, Fu F, Astruc D. Hydrogen Generation upon Nanocatalyzed Hydrolysis of Hydrogen-Rich Boron Derivatives: Recent Developments. Acc Chem Res 2020; 53:2483-2493. [PMID: 33034454 DOI: 10.1021/acs.accounts.0c00525] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
ConspectusProduction of hydrogen from nonfossil sources is essential toward the generation of sustainable energy. Hydrogen generation upon hydrolysis of stable hydrogen-rich materials has long been proposed as a possibility of hydrogen disposal on site, because transport of explosive hydrogen gas is dangerous. Hydrolysis of some boron derivatives could rapidly produce large amounts of hydrogen, but this requires the presence of very active catalysts. Indeed, late transition-metal nanocatalysts have recently been developed for the hydrolysis of a few hydrogen-rich precursors.Our research group has focused on the improvement and optimization of highly performing Earth-abundant transition-metal-based nanocatalysts, optimization of remarkable synergies between different metals in nanoalloys, supports including positive synergy with nanoparticles (NPs) for rapid hydrogen generation, comparison between various endo- or exoreceptors working as homogeneous and heterogeneous supports, mechanistic research, and comparison of the nanocatalyzed hydrolysis of several boron hydrides.First, hydrogen production upon hydrolysis of ammonia borane, AB (3 mol H2 per mol AB) was examined with heterogeneous endoreceptors. Thus, a highly performing Ni@ZIF-8 nanocatalyst was found to be superior over other Earth-abundant nanocatalysts and supports. With 85.7 molH2·molcat-1·min-1 at 25 °C, this Ni nanocatalyst surpassed the results of previous Earth-abundant nanocatalysts. The presence of NaOH accelerated the reaction, and a remarkable pH-dependent "on-off" control of the H2 production was established. Bimetallic nanoalloys Ni-Pt@ZIF-8 showed a dramatic volcano effect optimized with a nanoalloy containing 2/3 Ni and 1/3 Pt. The rate reached 600 molH2·molcat-1·min-1 and 2222 molH2·molPt-1·min-1 at 20 °C, which much overtook the performances of both related nanocatalysts Ni@ZIF-8 and Pt@ZIF-8. Next, hydrogen production was also researched via hydrolysis of sodium borohydride (4 mol H2 per mol NaBH4) using nanocatalysts in ZIF-8, and, among Earth-abundant nanocatalysts, Co@ZIF-8 showed the best performance, outperforming previous Co nanocatalysts. For exoreceptors, "click" dendrimers containing triazole ligands on their tripodal tethers were used as supports for homogeneous (semiheterogeneous) catalysis of both AB and NaBH4 hydrolysis. For both reactions, Co was found to be the best Earth-abundant metal, Pt the best noble metal, and Co1Pt1 the best nanoalloy, with synergistic effects. Based on kinetic measurements and kinetic isotope effects for all of these reactions, mechanisms are proposed and the hydrogen produced was further used in tandem reactions. Overall, dramatic triple synergies between these nanocatalyst components have allowed hydrogen release within a few seconds under ambient conditions. These nanocatalyst improvements and mechanistic findings should also inspire further nanocatalyst design in various areas of hydrogen production.
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Affiliation(s)
- Changlong Wang
- ISM UMR CNRS 5255, Univ. Bordeaux, 351 Cours de la Libération, 33405 Cedex Talence, France
| | - Qi Wang
- ISM UMR CNRS 5255, Univ. Bordeaux, 351 Cours de la Libération, 33405 Cedex Talence, France
| | - Fangyu Fu
- ISM UMR CNRS 5255, Univ. Bordeaux, 351 Cours de la Libération, 33405 Cedex Talence, France
| | - Didier Astruc
- ISM UMR CNRS 5255, Univ. Bordeaux, 351 Cours de la Libération, 33405 Cedex Talence, France
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27
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Zhang Y, Zhang X, Li Y, Zhao S, Hou S, Wu K, Wang Y. Packing Sierpiński Triangles into Two-Dimensional Crystals. J Am Chem Soc 2020; 142:17928-17932. [PMID: 33026224 DOI: 10.1021/jacs.0c08979] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Fractals are of fundamental importance in science and technology. Theoretical simulations indicate that Sierpiński triangles (STs) possess specific optical and electronic properties. To study their properties and uncover their potential applications, it is necessary to pack STs into large-scale two-dimensional crystalline structures. Here, a series of ordered structures consisting of ST units are successfully constructed on gold surfaces through coordination between 1,3-bis(4-pyridyl) benzene molecules and Fe atoms. Crystals of STs are characterized by scanning tunneling microscopy. K-map analysis explains the structural formation mechanism, which is further verified by density functional theory calculations. The molecular free diffusion and nice structure matching between STs and gold surfaces play important roles in the formation of crystals of STs.
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Affiliation(s)
- Yajie Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China
| | - Xue Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China
| | - Yaru Li
- Peking University, Information Technology Institute (Tianjin Binhai), Tianjin 300450, China
| | - Shuting Zhao
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China
| | - Shimin Hou
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China.,Peking University, Information Technology Institute (Tianjin Binhai), Tianjin 300450, China
| | - Kai Wu
- BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yongfeng Wang
- Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China.,Beijing Academy of Quantum Information Sciences, Beijing 100193, China
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28
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Singh A, Dutta A, Singh AK, Trivedi M, Kociok‐Köhn G, Muddassir M, Kumar A. Tertiary phosphine‐appended transition metal ferrocenyl dithiocarbamates: Syntheses, Hirshfeld surface, and electrochemical analyses. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Amita Singh
- Department of Chemistry, Faculty of science University of Lucknow Lucknow 226007 India
| | - Archisman Dutta
- Department of Chemistry, Faculty of science University of Lucknow Lucknow 226007 India
- Chemical Division Geological Survey of India Northern Region Lucknow 226024 India
| | - Ashish Kumar Singh
- Department of Chemistry Guru Ghasidas Vishwavidyala, Koni Bilaspur 495009 India
| | - Manoj Trivedi
- Department of Chemistry University of Delhi Delhi India
| | - Gabriele Kociok‐Köhn
- Material and Chemical Characterization Facility (MC2) University of Bath Bath BA27AY UK
| | - Mohd. Muddassir
- Department of Chemistry, College of Science King Saud University Riyadh 11451 Saudi Arabia
| | - Abhinav Kumar
- Department of Chemistry, Faculty of science University of Lucknow Lucknow 226007 India
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29
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Gillani SS, Munawar MA, Khan KM, Chaudhary JA. Synthesis, characterization and applications of poly-aliphatic amine dendrimers and dendrons. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [PMCID: PMC7298932 DOI: 10.1007/s13738-020-01973-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In the current era, the dendrimers have vast potential applications in the area of electronics, healthcare, pharmaceuticals, biotechnology, engineering products, photonics, drug delivery, catalysis, electronic devices, nanotechnologies and environmental issues. This review recaps the synthesis, characterization and applications of poly-aliphatic amine dendrimers.
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30
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Astruc D. The supramolecular redox functions of metallomacromolecules. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2020. [DOI: 10.1186/s42825-020-00026-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Abstract
Metallomacromolecules are frequently encountered in redox proteins including metal-tanned hide collagen and play crucial roles involving supramolecular properties in biological electron-transfer processes. They are also currently found in non-natural families, such as: metallopolymers, metallodendrimers and metallodendronic polymers. This mini-review discusses the supramolecular redox functions of such nanomaterials developed in our research group. Electron-transfer processes are first examined in mono-, bis- and hexa-nuclear ferrocenes and other electron-reservoir organoiron systems showing the influence of supramolecular and reorganization aspects on their mechanism. Then applications of electron-transfer processes using these same organoiron redox systems in metallomacromolecules and their supramolecular functions are discussed including redox recognition/sensing, catalysis templates, electrocatalysis, redox catalysis, molecular machines, electrochromes, drug delivery device and nanobatteries.
Graphical Abstract
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31
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Fana M, Gallien J, Srinageshwar B, Dunbar GL, Rossignol J. PAMAM Dendrimer Nanomolecules Utilized as Drug Delivery Systems for Potential Treatment of Glioblastoma: A Systematic Review. Int J Nanomedicine 2020; 15:2789-2808. [PMID: 32368055 PMCID: PMC7185330 DOI: 10.2147/ijn.s243155] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/03/2020] [Indexed: 02/06/2023] Open
Abstract
Glioblastoma (GB) is a grade IV astrocytoma that maintains a poor prognosis with respect to current treatment options. Despite major advancements in the fields of surgery and chemoradiotherapy over the last few decades, the life expectancy for someone with glioblastoma remains virtually unchanged and warrants a new approach for treatment. Poly(amidoamine) (PAMAM) dendrimers are a type of nanomolecule that ranges in size (between 1 and 100 nm) and shape and can offer a new viable solution for the treatment of intracranial tumors, including glioblastoma. Their ability to deliver a variety of therapeutic cargo and penetrate the blood-brain barrier (BBB), while preserving low cytotoxicity, make them a favorable candidate for further investigation into the treatment of glioblastoma. Here, we present a systematic review of the current advancements in PAMAM dendrimer technology, including the wide spectrum of dendrimer generations formulated, surface modifications, core modifications, and conjugations developed thus far to enhance tumor specificity and tumor penetration for treatment of glioblastoma. Furthermore, we highlight the extensive variety of therapeutics capable of delivery by PAMAM dendrimers for the treatment of glioblastoma, including cytokines, peptides, drugs, siRNAs, miRNAs, and organic polyphenols. While there have been prolific results stemming from aggressive research into the field of dendrimer technology, there remains a nearly inexhaustible amount of questions that remain unanswered. Nevertheless, this technology is rapidly developing and is nearing the cusp of use for aggressive tumor treatment. To that end, we further highlight future prospects in focus as researchers continue developing more optimal vehicles for the delivery of therapeutic cargo.
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Affiliation(s)
- Michael Fana
- College of Medicine, Central Michigan University, Mt. Pleasant, MI48859, USA
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI48859, USA
| | - John Gallien
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI48859, USA
- Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI48859, USA
| | - Bhairavi Srinageshwar
- College of Medicine, Central Michigan University, Mt. Pleasant, MI48859, USA
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI48859, USA
- Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI48859, USA
| | - Gary L Dunbar
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI48859, USA
- Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI48859, USA
- Department of Psychology, Central Michigan University, Mt. Pleasant, MI48859, USA
- Field Neurosciences Institute, St. Mary’s of Michigan, Saginaw, MI48604, USA
| | - Julien Rossignol
- College of Medicine, Central Michigan University, Mt. Pleasant, MI48859, USA
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI48859, USA
- Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI48859, USA
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32
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Gottis S, Laurent R, Collière V, Caminade AM. Straightforward synthesis of gold nanoparticles by adding water to an engineered small dendrimer. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:1110-1118. [PMID: 32802713 PMCID: PMC7404285 DOI: 10.3762/bjnano.11.95] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/26/2020] [Indexed: 05/10/2023]
Abstract
A small water-soluble phosphorus-containing dendrimer was engineered for the complexation of gold(I) and for its reduction under mild conditions. Gold nanoparticles were obtained as colloidal suspensions simply and only when the powdered form of this dendrimer was dissolved in water, as shown by transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX) analyses. The dendrimers acted simultaneously as mild reducers and as nanoreactors, favoring the self-assembly of gold atoms and promoting the growth and stabilization of isolated gold nanoparticles. Thus, an unprecedented method for the synthesis of colloidal suspensions of water-soluble gold nanoparticles was proposed in this work.
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Affiliation(s)
- Sébastien Gottis
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
- Laboratoire de Réactivité et Chimie des Solides, UMR CNRS/UPJV 7314, 33 rue St Leu, 80039 Amiens cedex 1, France
| | - Régis Laurent
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Vincent Collière
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Anne-Marie Caminade
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
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Agrahari AK, Singh. AS, Mukherjee R, Tiwari VK. An expeditious click approach towards the synthesis of galactose coated novel glyco-dendrimers and dentromers utilizing a double stage convergent method. RSC Adv 2020; 10:31553-31562. [PMID: 35520637 PMCID: PMC9056565 DOI: 10.1039/d0ra05289b] [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] [Received: 06/16/2020] [Accepted: 08/10/2020] [Indexed: 11/29/2022] Open
Abstract
The primary motive behind this article is to bring to the forefront a unique kind of dendrimer which has remained a dark horse since its discovery, namely dentromer. We herein report the synthesis of glycodendrimers and glycodentromers crowned with galactose units by harnessing an expeditious synthesis of dendrimer core 18 and dentromer core 19, divergently with branching directionality (1 → 2) and (1 → 3), respectively. A competent, double stage convergent synthetic path was chosen to facilitate ease of refining and spectroscopic elucidations. By exploiting a Cu(i)-catalyzed azide–alkyne cycloaddition (CuAAC) reaction strategy, we successfully developed a new series of galactosylated dendrimers 20, 21, 22, and 24 containing 6, 12, 18, and 18 peripheral galactose units, respectively. We are first to report the practical synthesis of 9-peripheral galactose coated glycodentromer 23 (0th generation) and 27-peripheral galactose coated glycodentromer 25 (1st generation). These synthesized scaffolds were characterized by spectral studies such as 1H, 13C NMR, FT-IR, MALDI-TOF MS, HRMS and SEC analysis. Additionally, gel permeation chromatography depicted the regular progression in size from 6 to 27-peripheral galactose coated glycodendrimers along with glycodentromers, with their high monodispersity. Also, the glyco-dendrimers and dentromers synthesized from two different hypercore units i.e. dendrimers core (18) and dentromer core (19), have been supported by their UV-visible absorbance and emission spectroscopy. A proficient double stage convergent approach has been exploited for an easy access of galactose coated novel glycodendrimers and dentromers under CuAAC click condition.![]()
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Affiliation(s)
- Anand K. Agrahari
- Department of Chemistry
- Centre of Advanced Study
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
| | - Anoop S. Singh.
- Department of Chemistry
- Centre of Advanced Study
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
| | - Rishav Mukherjee
- Department of Chemistry
- Centre of Advanced Study
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
| | - Vinod K. Tiwari
- Department of Chemistry
- Centre of Advanced Study
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
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34
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Design and Functions of Macromolecular Electron-Reservoir Complexes and Devices. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01412-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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35
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Shetgaonkar AD, Nadkarni VS. Synthetically Induced 1→4‐C Branching Motif ‐ An Access Towards Dense Urethane Connecting Dendritic Scaffolds and Application in Nuclear Track Detection. ChemistrySelect 2019. [DOI: 10.1002/slct.201903243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Vishnu S. Nadkarni
- School of Chemical SciencesGoa University, Taleigao Plateau Goa- 403206 India
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36
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Berac CM, Zengerling L, Straβburger D, Otter R, Urschbach M, Besenius P. Evaluation of Charge-Regulated Supramolecular Copolymerization to Tune the Time Scale for Oxidative Disassembly of β-Sheet Comonomers. Macromol Rapid Commun 2019; 41:e1900476. [PMID: 31682046 DOI: 10.1002/marc.201900476] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/25/2019] [Indexed: 02/06/2023]
Abstract
A multistimuli-responsive supramolecular copolymerization is reported. The copolymerization is driven by hydrogen bond encoded β-sheet-based charge co-assembly into 1D nanorods in water, using glutamic acid or lysine residues in either of the peptide comonomers. The incorporation of methionine as hydrophobic amino acid supports β-sheet formation, but oxidation of the thioether side-chain to a sulfoxide functional group destabilizes the β-sheet ordered domains and induces disassembly of the supramolecular polymers. Using H2 O2 as reactive oxygen species, the time scale and kinetics of the oxidative disassembly are probed. Compared to the charge neutral homopolymers, it is found that the oxidative disassembly of the charged ampholytic copolymers is up to two times faster and is operative at neutral pH. The strategy is therefore an important addition to the growing field of amphiphilic polythioether containing (macro)molecular building blocks, particularly in view of tuning their oxidation induced disassembly which tends to be notoriously slow and requires high concentrations of reactive oxygen species or acidic reaction media.
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Affiliation(s)
- Christian M Berac
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany.,Graduate School of Materials Science in Mainz, Staudingerweg 9, 55128, Mainz, Germany
| | - Lydia Zengerling
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - David Straβburger
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Ronja Otter
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Moritz Urschbach
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Pol Besenius
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany.,Graduate School of Materials Science in Mainz, Staudingerweg 9, 55128, Mainz, Germany
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37
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Yamamoto K, Imaoka T, Tanabe M, Kambe T. New Horizon of Nanoparticle and Cluster Catalysis with Dendrimers. Chem Rev 2019; 120:1397-1437. [DOI: 10.1021/acs.chemrev.9b00188] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
- PRESTO-JST, Kawaguchi 332-0012, Japan
| | - Makoto Tanabe
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Tetsuya Kambe
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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38
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He L, Wu D, Tong M. The influence of different charged poly (amido amine) dendrimer on the transport and deposition of bacteria in porous media. WATER RESEARCH 2019; 161:364-371. [PMID: 31220762 DOI: 10.1016/j.watres.2019.06.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 06/07/2019] [Accepted: 06/10/2019] [Indexed: 06/09/2023]
Abstract
The influence of dendrimer on the bacterial transport and deposition behaviors in saturated porous media (quartz sand) was investigated in both NaCl (10 and 25 mM) and CaCl2 solutions (1.2 and 5 mM). 3.5G and 4G poly (amido amine) (PAMAM) dendrimer was employed as negatively and positively charged dendrimer, respectively. Three dendrimer concentrations (10 μg/L, 1 and 10 mg/L) were considered in present study. We found that regardless of the solution chemistry (ionic strength and ion types) and dendrimer concentrations, the presence of negatively charged PAMAM 3.5G in suspensions enhanced bacterial transport and inhibited their deposition in quartz sand; while the presence of positive charged PAMAM 4G yet induced the opposite effects (decreased bacterial transport and increased their deposition in quartz sand). The increased repulsive force between cell and quartz sand due to the adsorption of PAMAM 3.5G onto both cell and sand surfaces, the competition deposition sites as well as the steric repulsion via the suspended PAMAM 3.5G drove to the increased bacterial transport with PAMAM 3.5G copresent in suspensions in quartz sand. While the reduced repulsive force between cell and quartz sand induced by the chemical heterogeneity on both cell and sand surfaces (due to the adsorption of positive charged PAMAM 4G) increased bacterial retention in quartz sand with copresence of PAMAM 4G (10 μg/L and 1 mg/L) in suspensions. Steric repulsion due to the presence of great amount of suspended PAMAM 4G yet lead to the enhanced bacterial transport with furthering increasing PAMAM 4G to 10 mg/L relative to the lower PAMAM 4G concentration.
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Affiliation(s)
- Lei He
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Dan Wu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China; Beijing Institute of Metrology, Beijing, 100029, PR China
| | - Meiping Tong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China.
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40
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Zheng K, Ren J, He J. Thermally Responsive Unimolecular Nanoreactors from Amphiphilic Dendrimer-Like Copolymer Prepared via Anionic Polymerization and Cross Metathesis Reaction. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00920] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ke Zheng
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Jie Ren
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Junpo He
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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41
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Taraban MB, Deredge DJ, Smith ME, Briggs KT, Li Y, Jiang ZX, Wintrode PL, Yu YB. Monitoring dendrimer conformational transition using 19 F and 1 H 2 O NMR. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2019; 57:861-872. [PMID: 30746779 DOI: 10.1002/mrc.4849] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/25/2019] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
The conformational transition of a fluorinated amphiphilic dendrimer is monitored by the 1 H signal from water, alongside the 19 F signal from the dendrimer. High-field NMR data (chemical shift δ, self-diffusion coefficient D, longitudinal relaxation rate R1 , and transverse relaxation rate R2 ) for both dendrimer (19 F) and water (1 H) match each other in detecting the conformational transition. Among all parameters for both nuclei, the water proton transverse-relaxation rate R2 (1 H2 O) displays the highest relative scale of change upon conformational transition of the dendrimer. Hydrogen/deuterium-exchange mass spectrometry reveals that the compact form of the dendrimer has slower proton exchange with water than the extended form. This result suggests that the sensitivity of R2 (1 H2 O) toward dendrimer conformation originates, at least partially, from the difference in proton exchange efficiency between different dendrimer conformations. Finally, we also demonstrated that this conformational transition could be conveniently monitored using a low-field benchtop NMR spectrometer via R2 (1 H2 O). The 1 H2 O signal thus offers a simple way to monitor structural changes of macromolecules using benchtop time-domain NMR.
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Affiliation(s)
- Marc B Taraban
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, MD, 21201, USA
| | - Daniel J Deredge
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, MD, 21201, USA
| | - Margaret E Smith
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, MD, 21201, USA
| | - Katharine T Briggs
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, MD, 21201, USA
| | - Yu Li
- School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Zhong-Xing Jiang
- School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Patrick L Wintrode
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, MD, 21201, USA
| | - Yihua Bruce Yu
- Department of Pharmaceutical Sciences, University of Maryland, Baltimore, MD, 21201, USA
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42
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Mo Y, Chen T, Dai J, Wu K, Wang D. On-Surface Synthesis of Highly Ordered Covalent Sierpiński Triangle Fractals. J Am Chem Soc 2019; 141:11378-11382. [DOI: 10.1021/jacs.9b04815] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yiping Mo
- CAS Key Laboratory
of Molecular Nanostructure and Nanotechnology, CAS Research/Education
Center for Excellence in Molecular Sciences, Beijing National Laboratory
for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Key Laboratory of
Advanced Textile Materials and Manufacturing Technology, Ministry
of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Ting Chen
- CAS Key Laboratory
of Molecular Nanostructure and Nanotechnology, CAS Research/Education
Center for Excellence in Molecular Sciences, Beijing National Laboratory
for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jingxin Dai
- Beijing National
Laboratory for Molecular Sciences (BNLMS), College of Chemical and College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Kai Wu
- Beijing National
Laboratory for Molecular Sciences (BNLMS), College of Chemical and College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Dong Wang
- CAS Key Laboratory
of Molecular Nanostructure and Nanotechnology, CAS Research/Education
Center for Excellence in Molecular Sciences, Beijing National Laboratory
for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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43
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Li DY, Li SW, Xie YL, Hua X, Long YT, Wang A, Liu PN. On-surface synthesis of planar dendrimers via divergent cross-coupling reaction. Nat Commun 2019; 10:2414. [PMID: 31160575 PMCID: PMC6546735 DOI: 10.1038/s41467-019-10407-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 05/02/2019] [Indexed: 11/09/2022] Open
Abstract
Dendrimers are homostructural and highly branched macromolecules with unique dendritic effects and extensive use in multidisciplinary fields. Although thousands of dendrimers have been synthesized in solution, the on-surface synthetic protocol for planar dendrimers has never been explored, limiting the elucidation of the mechanism of dendritic effects at the single-molecule level. Herein, we describe an on-surface synthetic approach to planar dendrimers, in which exogenous palladium is used as a catalyst to address the divergent cross-coupling of aryl bromides with isocyanides. This reaction enables one aryl bromide to react with two isocyanides in sequential steps to generate the divergently grown product composed of a core and two branches with high selectivity and reactivity. Then, a dendron with four branches and dendrimers with eight or twelve branches in the outermost shell are synthesized on Au(111). This work opens the door for the on-surface synthesis of various planar dendrimers and relevant macromolecular systems. Although many strategies exist to synthesize dendrimers in solution, the synthesis of planar dendrimers on a surface has proven challenging. Here, the authors produce planar dendrimers through a divergent on-surface cross-coupling reaction between one aryl bromide and two isocyanides, which enables the growth of branches from a single reactive site.
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Affiliation(s)
- Deng-Yuan Li
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Shi-Wen Li
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yu-Li Xie
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Xin Hua
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yi-Tao Long
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - An Wang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Pei-Nian Liu
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, China.
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44
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Supramolecular redox-responsive substrate carrier activity of a ferrocenyl Janus device. J Inorg Biochem 2019; 193:31-41. [DOI: 10.1016/j.jinorgbio.2018.12.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/28/2018] [Accepted: 12/30/2018] [Indexed: 12/15/2022]
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45
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Dolgushev M, Markelov DA, Lähderanta E. Linear Viscoelasticity of Carbosilane Dendrimer Melts. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02250] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Maxim Dolgushev
- Sorbonne Université, CNRS, Laboratoire de Physique Théorique de la Matière Condensée, LPTMC, F-75005 Paris, France
| | - Denis A. Markelov
- St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Erkki Lähderanta
- Department of Physics, Lappeenranta University of Technology, 53850 Lappeenranta, Finland
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46
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Tjandra KC, Thordarson P. Multivalency in Drug Delivery–When Is It Too Much of a Good Thing? Bioconjug Chem 2019; 30:503-514. [DOI: 10.1021/acs.bioconjchem.8b00804] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Kristel C. Tjandra
- School of Chemistry, the Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Pall Thordarson
- School of Chemistry, the Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
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47
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Dendrimer-encapsulated copper(II) immobilized on Fe3O4@SiO2 NPs: a robust recoverable catalyst for click synthesis of 1,2,3-triazole derivatives in water under mild conditions. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-018-3672-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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48
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Singh K, Kumari S, Jana A, Bhowmick S, Das P, Das N. Self-assembled neutral [2+2] platinacycles showing minimal DNA interactions. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.09.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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49
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Abstract
Bone infection represents greatest challenge in public health care with serious social and economic implications. The efforts of the scientific community are focused in the development of innovative and advanced biomaterials with anti-infective properties related to their non-fouling, bactericidal and/or antibiofilm capabilities. This chapter aims at thoroughly surveying the different approaches based on silica mesoporous materials (SMMs) for bone infection management. Bacteria repelling surfaces by zwitterionization process, bactericidal effect by implantable devices with antimicrobial local delivery agents and antibiofilm effect by more sophisticated systems based on targeted nanocarriers will be considered.
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Affiliation(s)
- María Vallet-Regí
- Department of Chemistry in Pharmaceutical Sciences, School of Pharmacy, Universidad Complutense de Madrid and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain.
| | - Montserrat Colilla
- Department of Chemistry in Pharmaceutical Sciences, School of Pharmacy, Universidad Complutense de Madrid and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Isabel Izquierdo-Barba
- Department of Chemistry in Pharmaceutical Sciences, School of Pharmacy, Universidad Complutense de Madrid and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
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50
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Wang Q, Fu F, Martinez-Villacorta AM, Moya S, Salmon L, Vax A, Hunel J, Ruiz J, Astruc D. Electron Flow in Large Metallomacromolecules and Electronic Switching of Nanoparticle Stabilization: Click Ferrocenyl Dentromers that Reduce AuIIIto Au Nanoparticles. Chemistry 2018; 24:12686-12694. [DOI: 10.1002/chem.201802289] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/01/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Qi Wang
- ISM, UMR CNRS No. 5255; Université Bordeaux; 33405 Talence Cedex France
| | - Fangyu Fu
- ISM, UMR CNRS No. 5255; Université Bordeaux; 33405 Talence Cedex France
| | | | - Sergio Moya
- Soft Matter Nanotechnology Lab; CIC biomaGUNE; Paseo Miramon 182 20014 Donostia-San Sebastian Spain
| | - Lionel Salmon
- Laboratoire de Chimie de Coordination; UPR CNRS 8241; 31077 Toulouse Cedex France
| | - Amélie Vax
- LCPO UMR 5629; 16 avenue Pey Berland 33600 Pessac France
| | - Julien Hunel
- ISM, UMR CNRS No. 5255; Université Bordeaux; 33405 Talence Cedex France
| | - Jaime Ruiz
- ISM, UMR CNRS No. 5255; Université Bordeaux; 33405 Talence Cedex France
| | - Didier Astruc
- ISM, UMR CNRS No. 5255; Université Bordeaux; 33405 Talence Cedex France
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