Results 21 to 30 of about 3,594 (226)

Function of aromatic compounds as indicators in laboratory experiments of heavy oil with fire flooding

Shiyou shiyan dizhi, 2022
Identifying whether high-temperature oxidation is realized in fire flooding has become one of the technical difficulties in evaluating the effect of fire flooding for heavy oil reservoirs. In order to study how the chemical properties of crude oil varied
Hongxing YAN, Junyin YANG, Wenrui JIANG, Yanfang ZHANG, Peixin LI   +4 more
doaj   +1 more source

Opium trade and use during the Late Bronze Age: Organic residue analysis of ceramic vessels from the burials of Tel Yehud, Israel

Archaeometry, EarlyView., 2022
Abstract Organic residue analysis was conducted on various vessels from burials at Tel Yehud, Israel. The analyses led to new reliable evidence for the presence of opioid alkaloids and their decomposition products. This research revitalizes a decades‐old discussion on the presence and function of the opium trade across a cultural region of utmost ...
Vanessa Linares, Eriola Jakoel, Ron Be’eri, Oded Lipschits, Ronny Neumann, Yuval Gadot   +5 more
wiley   +1 more source

Biological evaluation, molecular modeling and dynamics simulation of phenanthrenes isolated from Bletilla striata as butyrylcholinesterase inhibitors

Scientific Reports, 2022
As part of our continuous studies on natural cholinesterase inhibitors from plant kingdom, the 95% ethanol extract from tubers of Bletilla striata showed promising butyrylcholinesterase (BChE) inhibition (IC50 = 8.6 μg/mL).
Yi Liu, Yanbei Tu, Yunyao Kang, Chao Zhu, Chuanhai Wu, Gang Chen, Zerong Liu, Yanfang Li   +7 more
doaj   +1 more source

Known or Never before Identified Phenanthrenes: Where It Is Possible to Isolate Them and Why

, 2022
: The secondary metabolites of plant origin belong to different and numerous classes of organic compounds. One of these is that of dimeric phenanthrenes, symmetrical or not, characterized by a series of interesting biological activities.
Di Fabio, Giovanni, Giovanni Di Fabio, Zarrelli, Armando, Armando Zarrelli   +3 more
core   +1 more source

Antiplatelet Aggregation Effects of Phenanthrenes from

Natural Product Communications, 2014
Three phenanthrenes (1–3) , four indole alkaloids (4–7) and one steroid (8) were isolated from the leaves of Calanthe arisanensis for the first time. In the antiplatelet aggregation assay, phenanthrenes 1 and 2 showed potential antiplatelet activity.
Chia-Lin Lee, Ming-Hon Yen, Fang-Rong Chang, Chin-Chung Wu, Yang-Chang Wu   +4 more
doaj   +1 more source

Sorption of Phenanthrene on Agricultural Soils [PDF]

Water, Air, & Soil Pollution, 2013
Polyaromatic hydrocarbon (PAH) sorption to soil is a key process deciding the transport and fate of PAH, and potential toxic impacts in the soil and groundwater ecosystems, for example in connection with atmospheric PAH deposition on soils. There are numerous studies on PAH sorption in relatively low organic porous media such as urban soils and ...
Soares, Antonio, Møldrup, Per, Minh, Luong Nhat, Vendelboe, Anders Lindblad, Schjønning, Per; id_orcid 0000-0002-9362-1003, de Jonge, Lis Wollesen   +5 more
openaire   +5 more sources

Synthesis and photophysical properties of new reactive fluorophenanthrenes

Comptes Rendus. Chimie, 2020
A series of six new suitably functionalized fluorophenanthrene derivatives were synthesized through a simple procedure, making use of inexpensive starting materials under mild conditions.
Hajri, Amira K., Albalawi, Marzough A., Elsayed, Nadia H., Aloui, Faouzi   +3 more
doaj   +1 more source

Source rock geochemistry of central and northwestern Niger Delta: Inference from aromatic hydrocarbons content

Energy Geoscience, 2023
The influence of origin, depositional environment and thermal maturity of organic matter on the occurrence of aromatic hydrocarbons in source rocks from the central and northwestern Niger Delta was investigated.
Akinsehinwa Akinlua, Olugbemiga Raphael Dada, Fuad Oluseyi Usman, Solomon Adeniyi Adekola   +3 more
doaj   +1 more source

Synthesis, Properties, and Reactivity of Bis-BN Phenanthrenes: Stepwise Bromination of the Main Scaffold

, 2020
Two bis-BN phenanthrenes have been synthesized. Their photophysical properties are different from those of the reported mono-BN phenanthrenes. Moreover, the stepwise bromination of bis-BN phenanthrene 8 gave a series of brominated bis-BN phenanthrenes ...
Lingjian Zi (8428803), Xuguang Liu (1397908), Chenglong Li (129885), Yi Qu (262233), Lei Zhang (38117), Jinyun Zhang (4557172), Bin Zhen (8428806)   +6 more
core   +1 more source

Polycyclic aromatic hydrocarbon (PAH) source identification and a maternal transfer case study in threatened killer whales (Orcinus orca) of British Columbia, Canada

Scientific Reports, 2023
The northeastern Pacific (NEP) Ocean spans the coast of British Columbia (Canada) and is impacted by anthropogenic activities including oil pipeline developments, maritime fossil fuel tanker traffic, industrial chemical effluents, agricultural and urban ...
Kiah Lee, Stephen Raverty, Paul Cottrell, Zeinab Zoveidadianpour, Brendan Cottrell, Dana Price, Juan José Alava   +6 more
doaj   +1 more source