Results 31 to 40 of about 3,594 (226)

Urinary carboxylic acid metabolites as possible novel biomarkers of exposures to alkylated polycyclic aromatic hydrocarbons

open access: yesEnvironment International, 2021
Previous studies have found that alkylated polycyclic aromatic hydrocarbons (alkyl-PAHs) were more abundant in petrogenic sources (e.g., crude oil and its refined products) than pyrogenic sources of incomplete combustion.
Yan Lin   +7 more
doaj   +1 more source

Microbial Glycosylation of Phenanthrene and Bibenzyls by

open access: yesNatural Product Communications, 2020
Microbial transformation of denthyrsinin ( 1 ), gigantol ( 2 ), and batatasin III ( 3 ), the major constituents of Dendrobium species (Orchidaceae), was performed using the filamentous fungus Mucor hiemalis KCTC 26779. Three glycosylated metabolites were
Bomi Nam, Ah-Reum Han, Ik-Soo Lee
doaj   +1 more source

BN-Phenanthrenes: Synthesis, Reactivity, and Optical Properties

open access: yes, 2019
Two series of BN-phenanthrenes, including the parental compounds, have been synthesized in an efficient manner from commercially available materials. Both parental BN-phenanthrenes are strongly fluorescent in solution.
Chao Sun (139686)   +9 more
core   +1 more source

Regioselective Synthesis of Substituted Cyclopenta[l]phenanthrenes

open access: yes, 2016
A simple and efficient synthesis of cyclopenta­[l]­phenanthrenes from substituted acetophenones provides access to polycyclic aromatics with a variety of substitution patterns.
David M. Connors (3068973)   +1 more
core   +1 more source

Color‐Pure Organic Luminophores: Characteristics, Definitions, Physical Basis and Fundamental Design Principles

open access: yesAngewandte Chemie International Edition, EarlyView.
Color‐pure all‐organic emitters, i.e., with narrow spectral characteristics, are intensively studied for high‐definition organic LEDs and multi‐color bioimaging. In order to guide targeted materials design, this educative review discusses spectral characteristics, proper definitions and units, and the physical basis of spectral broadening, to distill ...
Johannes Gierschner   +6 more
wiley   +1 more source

Construction of Lean Coal Molecular Structure Model Based on Spectroscopic Characterization

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The chemical structure of coal exerts a profound influence on its properties and utilization pathways. A comprehensive analysis of coal's molecular structure is crucial for mitigating environmental pollution arising from coal combustion and improving the efficiency of coal utilization.
Song Liu   +5 more
wiley   +1 more source

Regiospecific synthesis of disubstituted phenanthrenes [PDF]

open access: yes, 2014
Master's thesis in Biological chemistryAs the Norwegian oil fields mature, the wells produce more water. This produced water containing a diverse mixture of dissolved PAHs is eventually released to the environment.
Böhme, Thomas
core  

Catalytic Pyrolysis of Waste Polystyrene Over Fe–B Composite Catalyst for Enhanced Liquid Fuel Production

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Healthcare derived polystyrene waste represents a growing and under addressed fraction of plastic waste streams due to contamination risks and limited recyclability. This study aims to investigate the valorization of waste polystyrene foam through catalytic and noncatalytic pyrolysis pathways to evaluate product yield distribution and identify
Salman Khan   +4 more
wiley   +1 more source

CHEMICAL AND BIOLOGICAL INVESTIGATION OF Cattleya nobilior Rchb. F. (Orchidaceae): TARGETING ON PHENANTHRENE AND STILBENOID DERIVATIVES

open access: yesQuímica Nova
Orchidaceae family is a valuable source of bioactive compounds, particularly phenanthrenes and stilbenoids, which exhibit promising pharmacological properties. Cattleya nobilior Rchb. F.
Caroline de Moura Costa   +13 more
doaj   +1 more source

Immune modulatory effect of a novel 4,5-dihydroxy-3,3´,4´-trimethoxybibenzyl from Dendrobium lindleyi.

open access: yesPLoS ONE, 2020
Dendrobium bibenzyls and phenanthrenes such as chrysotoxine, cypripedin, gigantol and moscatilin have been reported to show promising inhibitory effects on lung cancer growth and metastasis in ex vivo human cell line models, suggesting their potential ...
Pichayatri Khoonrit   +7 more
doaj   +1 more source

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