Retention models and interaction mechanisms of benzene and other aromatic molecules with an amylose-based sorbent

: Surface Enhanced Raman Spectroscopy (SERS) has a long history as an ultrasensitive platform for the detection of biological species from small aromatic molecules to complex biological systems as circulating tumor cells. Thanks to unique properties of graphene, the range of SERS applications has largely expanded. Graphene is efficient fluorescence quencher improving quality of Raman spectra. It contributes also to the SERS enhancement factor through the chemical mechanism. In turn, the chemical flexibility of Reduced Graphene Oxide (RGO) enables tunable adsorption of molecules or cells on SERS active surfaces. Graphene oxide composites with SERS active nanoparticles have been also applied for Raman imaging of cells. This review presents a survey of SERS assays employing graphene or RGO emphasizing the improvement of SERS enhancement brought by graphene or RGO. The structure and physical properties of graphene and RGO will be discussed too.

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Primary photochemical processes in aromatic molecules. Part 12.—Excited states of benzophenone derivatives

Transactions of the Faraday Society ◽

10.1039/tf9656101664 ◽

1965 ◽

Vol 61 (0) ◽

pp. 1664-1673 ◽

Cited By ~ 163

Author(s):

G. Porter ◽

P. Suppan

Keyword(s):

Excited States ◽

Photochemical Processes ◽

Aromatic Molecules

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The carbonization of aromatic molecules with three-dimensional structures affords carbon materials with controlled pore sizes at the Ångstrom-level

Communications Chemistry ◽

10.1038/s42004-021-00515-0 ◽

2021 ◽

Vol 4 (1) ◽

Author(s):

Tomoki Ogoshi ◽

Yuma Sakatsume ◽

Katsuto Onishi ◽

Rui Tang ◽

Kazuma Takahashi ◽

...

Keyword(s):

Porous Carbon ◽

Carbon Materials ◽

Carbon Sources ◽

Three Dimensional ◽

Chemical Vapor ◽

Thermal Polymerization ◽

Sodium Ion Battery ◽

Pore Sizes ◽

Aromatic Molecules ◽

Template Methods

AbstractCarbon materials with controlled pore sizes at the nanometer level have been obtained by template methods, chemical vapor desorption, and extraction of metals from carbides. However, to produce porous carbons with controlled pore sizes at the Ångstrom-level, syntheses that are simple, versatile, and reproducible are desired. Here, we report a synthetic method to prepare porous carbon materials with pore sizes that can be precisely controlled at the Ångstrom-level. Heating first induces thermal polymerization of selected three-dimensional aromatic molecules as the carbon sources, further heating results in extremely high carbonization yields (>86%). The porous carbon obtained from a tetrabiphenylmethane structure has a larger pore size (4.40 Å) than those from a spirobifluorene (4.07 Å) or a tetraphenylmethane precursor (4.05 Å). The porous carbon obtained from tetraphenylmethane is applied as an anode material for sodium-ion battery.

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