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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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Abstract
The discovery of ferrocene, [Fe(η5-C5H5)2], seventy years ago has significantly influenced chemical research and provided a key impetus for establishing and rapidly expanding organometallic chemistry, which has continued at a...
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Martins I, Tomás H, Lahoz F, Rodrigues J. Engineered Fluorescent Carbon Dots and G4-G6 PAMAM Dendrimer Nanohybrids for Bioimaging and Gene Delivery. Biomacromolecules 2021. [DOI: https:/doi.org/10.1021/acs.biomac.1c00232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Affiliation(s)
- Ivo Martins
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Helena Tomás
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Fernando Lahoz
- Departamento de Física, IUdEA, Universidad de La Laguna, 38200 San Cristóbal de La Laguna, Tenerife, Spain
| | - João Rodrigues
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- School of Materials Science and Engineering/Center for Nano Energy Materials, Northwestern Polytechnical University, 710072 Xi’an, China
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Martins I, Tomás H, Lahoz F, Rodrigues J. Engineered Fluorescent Carbon Dots and G4-G6 PAMAM Dendrimer Nanohybrids for Bioimaging and Gene Delivery. Biomacromolecules 2021; 22:2436-2450. [PMID: 34009977 DOI: 10.1021/acs.biomac.1c00232] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Carbon dots (CDs) and G4-G6 (polyamidoamine)PAMAM-NH2 dendrimers were self-assembled to produce CDs@PAMAM nanohybrids for transfection and bioimaging purposes. CDs were synthesized by the hydrothermal method, using ascorbic acid as a starting precursor and characterized by transmission electron microscopy, UV-Vis, and fluorescence (in solution and solid-state) techniques. CDs were electrostatically combined with PAMAM dendrimers at room temperature, and the UV-Vis, fluorescence, and NMR spectroscopies were used to confirm the self-assembly. When compared to pristine CDs, nanohybrids were more photostable, resisting high acidic and basic pH. Moreover, they were considerably internalized by cells, as assessed by flow cytometry and fluorescence microscopy, and, when excited, displayed multi-color emission easily quantified and visualized. These nanoscale hybrids, coined hybridplexes, can condense pDNA and transfecting cells successfully, particularly the G5 CDs@PAMAM nanohybrids. In summary, CDs prepared in mild and smooth lab conditions, showing good optical properties, were used to prepare elegantly CDs@PAMAM nanohybrids with promising biomedical applications.
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Affiliation(s)
- Ivo Martins
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Helena Tomás
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Fernando Lahoz
- Departamento de Física, IUdEA, Universidad de La Laguna, 38200 San Cristóbal de La Laguna, Tenerife, Spain
| | - João Rodrigues
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- School of Materials Science and Engineering/Center for Nano Energy Materials, Northwestern Polytechnical University, 710072 Xi'an, China
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Martins I, Tomás H, Lahoz F, Rodrigues J. Engineered Fluorescent Carbon Dots and G4-G6 PAMAM Dendrimer Nanohybrids for Bioimaging and Gene Delivery. Biomacromolecules 2021. [DOI: https://doi.org/10.1021/acs.biomac.1c00232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ivo Martins
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Helena Tomás
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Fernando Lahoz
- Departamento de Física, IUdEA, Universidad de La Laguna, 38200 San Cristóbal de La Laguna, Tenerife, Spain
| | - João Rodrigues
- CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- School of Materials Science and Engineering/Center for Nano Energy Materials, Northwestern Polytechnical University, 710072 Xi’an, China
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Wakizaka M, Muramatsu H, Imaoka T, Yamamoto K. Composition‐Defined Bimetallic Mo‐Pt Sub‐Nanosized Particles. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Masanori Wakizaka
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology Yokohama 226‐8503 Japan
| | - Hisanori Muramatsu
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology Yokohama 226‐8503 Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology Yokohama 226‐8503 Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology Yokohama 226‐8503 Japan
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Affiliation(s)
- Jean-Pierre Launay
- CEMES-CNRS; Université de Toulouse; 29 rue Jeanne Marvig 31055 Toulouse France
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Hildebrandt A, Miesel D, Yuan Q, Freytag J, Mahrholdt J, Lang H. Anion and solvent dependency of the electronic coupling strength in mixed valent class II systems. Dalton Trans 2019; 48:13162-13168. [PMID: 31451808 DOI: 10.1039/c9dt03121a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The influence of the coordination and ion pairing properties of electrolyte anions on electronic coupling in cationic class II mixed valent species was studied. In order to cover a range of electronic coupling strengths within the class II regime, weakly coupled 2,5-diferrocenyl-3,4-thiadiazol, moderately coupled 2,5-diferrocenyl thiophene and strongly coupled N-(4-dimethylaminophenyl)-2,5-diferrocenyl-1H-pyrrole were chosen as analytes. The electrochemical properties of these compounds were determined by cyclic and square wave voltammetry using electrolytes with varying ion pairing capabilities, such as [NBu4][Cl], [NBu4][PF6] and [NBu4][BArF] ([NBu4][B(C6F5)4]), as well as solvents with increasing dielectric constants (dichloromethane (εr = 8.93), acetone (εr = 20.56), acetonitrile (εr = 35.94) and propylene carbonate (εr = 64.92)). It is shown that the choice of electrolyte has a considerable impact on the electrostatic and the electron transfer features of the mixed valent compounds when solvents of low polarity and low relative permittivity such as dichloromethane are used. For the use of more polar solvents such as propylene carbonate the electrochemical and spectroscopic properties are almost electrolyte independent. The solvatochromic and ion-related changes in the spectroscopic properties are most pronounced for weakly coupled systems and decrease with an increase in the electron transfer coupling strength.
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Affiliation(s)
- Alexander Hildebrandt
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Dominique Miesel
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Qing Yuan
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Janine Freytag
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Julia Mahrholdt
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
| | - Heinrich Lang
- Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie, D-09107 Chemnitz, Germany.
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Smith CA, Narouz MR, Lummis PA, Singh I, Nazemi A, Li CH, Crudden CM. N-Heterocyclic Carbenes in Materials Chemistry. Chem Rev 2019; 119:4986-5056. [PMID: 30938514 DOI: 10.1021/acs.chemrev.8b00514] [Citation(s) in RCA: 353] [Impact Index Per Article: 70.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
N-Heterocyclic carbenes (NHCs) have become one of the most widely studied class of ligands in molecular chemistry and have found applications in fields as varied as catalysis, the stabilization of reactive molecular fragments, and biochemistry. More recently, NHCs have found applications in materials chemistry and have allowed for the functionalization of surfaces, polymers, nanoparticles, and discrete, well-defined clusters. In this review, we provide an in-depth look at recent advances in the use of NHCs for the development of functional materials.
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Affiliation(s)
- Christene A Smith
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Mina R Narouz
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Paul A Lummis
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Ishwar Singh
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Ali Nazemi
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Chien-Hung Li
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Cathleen M Crudden
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6.,Institute of Transformative Bio-Molecules, ITbM-WPI , Nagoya University , Nagoya , Chikusa 464-8601 , Japan
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Deb M, Hazra S, Gupta A, Elias AJ. Synthesis of unsymmetrical multi-aroyl derivatives of ferrocene using palladium catalysed oxidative C–H aroylation. Dalton Trans 2018; 47:7229-7236. [DOI: 10.1039/c8dt01147h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium catalysed oxidative C–H aroylation of ferrocene: accessing the multi-aroyl derivatives of ferrocene.
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Affiliation(s)
- Mayukh Deb
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Susanta Hazra
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Ajay Gupta
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Anil J. Elias
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
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Hazra S, Deb M, Singh J, Elias AJ. Picolinamide as a Directing Group on Metal Sandwich Compounds: sp2 C–H Bond Activation and sp3 C–H Bond Oxidation. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00143] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Susanta Hazra
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Mayukh Deb
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Jatinder Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Anil J. Elias
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
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Rüger J, Timmermann C, Villinger A, Hinz A, Hollmann D, Seidel WW. Minimalistic Ditopic Ligands: An α-S,N-Donor-Substituted Alkyne as Effective Intermetallic Conjugation Linker. Chemistry 2016; 22:11191-5. [DOI: 10.1002/chem.201601403] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Julia Rüger
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | | | - Alexander Villinger
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Alexander Hinz
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Dirk Hollmann
- Leibniz-Institut für Katalyse e.V.; Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Wolfram W. Seidel
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
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Hildebrandt A, Al Khalyfeh K, Schaarschmidt D, Korb M. Multi-functionalized ferrocenes: –Synthesis and characterization –. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2015.12.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ornelas C. Brief Timelapse on Dendrimer Chemistry: Advances, Limitations, and Expectations. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500393] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Catia Ornelas
- Institute of Chemistry; University of Campinas - Unicamp; Campinas SP 13083-970 Brazil
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