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Hou ICY, Hinaut A, Scherb S, Meyer E, Narita A, Müllen K. Synthesis of Giant Dendritic Polyphenylenes with 366 and 546 Carbon Atoms and their High-vacuum Electrospray Deposition. Chem Asian J 2022; 17:e202200220. [PMID: 35381624 PMCID: PMC9321752 DOI: 10.1002/asia.202200220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/31/2022] [Indexed: 11/21/2022]
Abstract
Dendritic polyphenylenes (PPs) can serve as precursors of nanographenes (NGs) if their structures represent 2D projections without overlapping benzene rings. Here, we report the synthesis of two giant dendritic PPs fulfilling this criteria with 366 and 546 carbon atoms by applying a “layer‐by‐layer” extension strategy. Although our initial attempts on their cyclodehydrogenation toward the corresponding NGs in solution were unsuccessful, we achieved their deposition on metal substrates under ultrahigh vacuum through the electrospray technique. Scanning probe microscopy imaging provides valuable information on the possible thermally induced partial planarization of such giant dendritic PPs on a metal surface.
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Affiliation(s)
- Ian Cheng-Yi Hou
- Max-Planck-Institut fur Polymerforschung, synthetic chemitry, GERMANY
| | - Antoine Hinaut
- University of Basel: Universitat Basel, physics, GERMANY
| | | | - Ernst Meyer
- University of Basel: Universitat Basel, physics, GERMANY
| | - Akimitsu Narita
- Max-Planck-Institut für Polymerforschung: Max-Planck-Institut fur Polymerforschung, synthetic chemistry, GERMANY
| | - Klaus Müllen
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128, Mainz, GERMANY
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Mignani S, Shi X, Karpus A, Lentini G, Majoral JP. Functionalized Dendrimer Platforms as a New Forefront Arsenal Targeting SARS-CoV-2: An Opportunity. Pharmaceutics 2021; 13:1513. [PMID: 34575589 PMCID: PMC8466088 DOI: 10.3390/pharmaceutics13091513] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 12/23/2022] Open
Abstract
The novel human coronavirus SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) has caused a pandemic. There are currently several marketed vaccines and many in clinical trials targeting SARS-CoV-2. Another strategy is to repurpose approved drugs to decrease the burden of the COVID-19 (official name for the coronavirus disease) pandemic. as the FDA (U.S. Food and Drug Administration) approved antiviral drugs and anti-inflammatory drugs to arrest the cytokine storm, inducing the production of pro-inflammatory cytokines. Another view to solve these unprecedented challenges is to analyze the diverse nanotechnological approaches which are able to improve the COVID-19 pandemic. In this original minireview, as promising candidates we analyze the opportunity to develop biocompatible dendrimers as drugs themselves or as nanocarriers against COVID-19 disease. From the standpoint of COVID-19, we suggest developing dendrimers as shields against COVID-19 infection based on their capacity to be incorporated in several environments outside the patients and as important means to stop transmission of SARS-CoV-2.
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Affiliation(s)
- Serge Mignani
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologique, Université Paris Descartes, PRES Sorbonne Paris Cité, CNRS UMR 860, 75006 Paris, France
- CQM—Centro de Química da Madeira, MMRG, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal
| | - Xiangyang Shi
- CQM—Centro de Química da Madeira, MMRG, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Andrii Karpus
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, CEDEX 4, 31077 Toulouse, France;
- Université Toulouse 118 Route de Narbonne, CEDEX 4, 31077 Toulouse, France
| | - Giovanni Lentini
- Dipartimento di Farmacia—Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy;
| | - Jean-Pierre Majoral
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, CEDEX 4, 31077 Toulouse, France;
- Université Toulouse 118 Route de Narbonne, CEDEX 4, 31077 Toulouse, France
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