نتایج جستجو برای: phenol based ligand

تعداد نتایج: 3040141  

A. Hadjiakhoondi M. Khanavi N. Kahkeshani N. Maafi

Background and objectives: Dairy companies always try to increase the quantity and quality of milk production. According to the positive impact of different plants on milk production of cattle, this study was carried out to standardize a galactogogue herbal mixture based on its total phenol and flavonol contents and antioxidant activity.  Methods: A mixture of Galega officinalis L. and...

2002
Songqin Liu Jiuhong Yu Huangxian Ju

A novel renewable tyrosinase-based biosensor was developed for the detection of phenol by immobilizing tyrosinase on a colloidal gold modified carbon paste electrode. Anionic colloidal gold was beneficial to the immobilization of tyrosinase and to the retention of its bioactivity to a large extent. The biosensor showed a sensitive electrochemical response to the reduction of the oxidation produ...

Journal: :Applied and environmental microbiology 1998
P M van Schie L Y Young

Phenol is a man-made as well as a naturally occurring aromatic compound and an important intermediate in the biodegradation of natural and industrial aromatic compounds. Whereas many microorganisms that are capable of aerobic phenol degradation have been isolated, only a few phenol-degrading anaerobic organisms have been described to date. In this study, three novel nitrate-reducing microorgani...

Journal: :Free radical research communications 1991
V V Subrahmanyam P Kolachana M T Smith

Benzene, a known human myelotoxin and leukemogen is metabolized by liver cytochrome P-450 monooxygenase to phenol. Further hydroxylation of phenol by cytochrome P-450 monooxygenase results in the formation of mainly hydroquinone, which accumulates in the bone marrow. Bone marrow contains high levels of myeloperoxidase. Here we report that phenol hydroxylation to hydroquinone is also catalyzed b...

We have demonstrated a simple and efficient route for the synthesis of a novel imine based tridentate ligand and its Pd-complex to investigate the C-C cross-coupling reactions, that involve column chromatography purification in only one step. The catalytic activity of the newly synthesized catalyst was studied for the Suzuki, Sonogashira and, Heck cross-coupling reactions under mild conditions....

Journal: :Clinical chemistry 1991
L M Harrison J E Morrison P V Fennessey

Methods for detection and quantification of phenol have been developed primarily for use in environmental and industrial monitoring, given the widespread use of phenol as a disinfectant and antiseptic. Little information is available regarding concentrations of phenol in the blood of patients treated with phenol in regional nerve blocks (e.g., intrathecal) for temporary relief of pain or spasti...

2012
Ying Zhu Xiaoyong Zhang Jianhua Zhu Qunfen Zhao Yuguo Li Wenxin Li Chunhai Fan Qing Huang

To explore the novel properties of carbon nanoparticles (CNPs) in nanotoxicity assays, the adsorption of phenol red (a pH indicator for culture medium) by multi-walled carbon nanotubes (MWNTs) and three kinds of carbon blacks (CBs) with nanosize, and its effects on cytotoxicity were studied. Results indicated that the phenol red adsorbed and delivered into cells by CBs was responsible for the t...

Journal: :Physical chemistry chemical physics : PCCP 2016
Sergi Saureu Coen de Graaf

Two light-induced spin-crossover Fe(III) compounds have been studied with time-dependent density functional theory (TD-DFT) to investigate the deactivation mechanism and the role of the ligand-field states as intermediates in this process. The B3LYP* functional has previously shown its ability to accurately describe (light-induced) spin-crossover in Fe(II) complexes. Here, we establish its perf...

Journal: :Microbiology 1998
S Hino K Watanabe N Takahashi

Ralstonia eutropha strain E2 (previously Alcaligenes sp.) is a phenol-degrading bacterium expressing phenol-oxygenating activity with a low Ks (the apparent half-saturation constant in Haldane's equation) and an extremely high KSI (the apparent inhibition constant). To identify the molecular basis for these novel cellular kinetic properties, a 9.5 kb DNA fragment that allowed Pseudomonas aerugi...

Journal: :research in pharmaceutical sciences 0
ayyub mojaddami 1department of medicinal chemistry and pharmaceutical sciences research centre, school of pharmacy, shiraz university of medical sciences, shiraz, i.r. iran. amirhossein sakhteman 1department of medicinal chemistry and pharmaceutical sciences research centre, school of pharmacy, shiraz university of medical sciences, shiraz, i.r. iran. masood fereidoonnezhad 2department of medicinal chemistry, school of pharmacy, ahvaz jundishapur university of medical sciences, ahvaz, i.r. iran. zeinab faghih 1department of medicinal chemistry and pharmaceutical sciences research centre, school of pharmacy, shiraz university of medical sciences, shiraz, i.r. iran. atena najdian 3department of nuclear pharmacy, school of pharmacy, tehran university of medical sciences, tehran, i.r. iran. soghra khabnadideh 1department of medicinal chemistry and pharmaceutical sciences research centre, school of pharmacy, shiraz university of medical sciences, shiraz, i.r. iran.

aromatase inhibitors (ais) as effective candidates have been used in the treatment of hormone-dependent breast cancer. in this study, we have proposed 300 structures as potential ais and filtered them by lipinski’s rule of five using druglito software. subsequently, they were subjected to docking simulation studies to select the top 20 compounds based on their gibbs free energy changes and also...

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