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Nanographene-Based Polymeric Nanoparticles as Near-Infrared Emissive Neuronal Tracers.
ACS Nano
December 2024
Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan.
Precise tracking of axonal transport is key to deciphering neuronal functions. To achieve long-term imaging at both ultrastructural and macroscopic resolutions, it is critical to develop fluorescent transport tracers with high photostability and biocompatibility. Herein, we report the investigation of nanographene (NG)-based polymeric nanoparticles (NPs) as near-infrared (NIR)-emissive neuronal tracers.
View Article and Find Full Text PDFAryne Atropisomers: Chiral Arynes for the Enantiospecific Synthesis of Atropisomers and Nanographene Atropisomers.
Acc Chem Res
January 2023
Aix Marseille Univ, CNRS, Centrale Marseille, ISM2, 13397 Marseille, France.
The basics about arynes and their applications in synthetic organic chemistry are briefly presented, and the concept of atropisomerism is defined, highlighting that it is a time-dependent form of isomerism and chirality. It is remembered that racemization is a macroscopic and statistical irreversible process, while enantiomerization is a nanoscopic reversible process that occurs at the molecular scale, with racemization being twice as fast as enantiomerization. The concept of aryne atropisomers is introduced with a naive question: Can synthetically useful nonracemic aryne atropisomers having a triple bond ortho to the stereogenic single bond exist in solution? It was found that such aryne atropisomers can be generated in solution from easily available -iodoaryl triflate precursors and excess trimethylsilylmethylmagnesium chloride.
View Article and Find Full Text PDFCorannulene: A Curved Polyarene Building Block for the Construction of Functional Materials.
Acc Chem Res
July 2021
Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21-Nanyang Link, 637371 Singapore.
This Account describes a body of research in the design and synthesis of molecular materials prepared from corannulene. Corannulene (CH) is a molecular bowl of carbon that can be visualized as the hydrogen-terminated cap of buckminsterfullerene. Due to this structural resemblance, it is often referred to as a buckybowl.
View Article and Find Full Text PDFMacroscopic 3D nanographene with dynamically tunable bulk properties.
Adv Mater
September 2012
Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA.
From macro- to nanoscopic templating with nanographenes.
J Am Chem Soc
November 2006
Max-Planck-Institut für Polymerforschung, 55128 Mainz, Germany.
A hexa-peri-hexabenzocoronene carrying six long, branched alkyl chains has been processed in nano- and macroscopic pore templates. An extraordinary self-organization of this material was observed within macroscopically large glass capillaries after cooling from the isotropic phase. Thereby, the columnar structures were long-range aligned along the capillary axis over several centimeters.
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