Results 91 to 100 of about 508 (167)

Derivatization-Assisted Sensitive Detection of Novichok Agents by Gas Chromatography–Mass Spectrometry for the Verification of Environmental and Biomedical Samples

Novichok agents are newly added chemical warfare agents in Schedule 1 of the Chemical Weapons Convention. Due to their poor chromatographic properties and the presence of relatively polar functional groups, the analytical response of Novichok agents in ...
Ajay Purohit, Avik Mazumder, Mahabul Shaik, Ashish Kumari, Chandrakant Waghmare, Manoj K. Sahoo, Meehir Palit, Subham Prasad Gupta   +7 more
core   +1 more source

Selection of varieties and heterotic hybrids of tomatoes suitable for re-cultivation

Растениевъдни науки, 2021
The article presents the results of the assessment of 35 varieties and heterotic hybrids of tomato in repeated cultivation by early maturity, harvest, growth rate, resistance to diseases, pests and extreme growing conditions.
Toshtemir Ostonakulov, Ozod Muratov
doaj  

The environmental fate of Novichok degradation products: application of in silico methods for the prediction of hydrolysis and biodegradation

Environment International
Novichoks are highly toxic organophosphorus nerve agents, and their environmental degradation products remain poorly understood. This study presents the first comprehensive in silico evaluation of hydrolysis and biodegradation potential for six ...
Maciej Noga, Kamil Jurowski, Kamil Kuca, Eugenie Nepovimová   +3 more
doaj   +1 more source

Determination of salt tolerance of tomato varieties in laboratory conditions [PDF]

BIO Web of Conferences
The aim of the study was to study the effect of salt solutions of different concentrations on seed germination in 7 tomato varieties and 3 hybrids in the Republic of Karakalpakstan. The following options were studied in the studies: dry seeds (control 1);
Madreimova Dilfuza, Urazbayev Kamil, Jalimbetov Musa, Orazymbetov Edilbek, Norbekova Gulrukh, Farsaxonova Dilafruz   +5 more
doaj   +1 more source

Vapor Pressure and Toxicity Prediction for Novichok Agent Candidates Using Machine Learning Model: Preparation for Unascertained Nerve Agents after Chemical Weapons Convention Schedule 1 Update

The recent terrorist attacks using Novichok agents and subsequent operations have necessitated an understanding of its physicochemical properties, such as vapor pressure and toxicity, as well as unascertained nerve agent structures.
Seung-Ryul Hwang (12278574), Dongwoo Kim (690147), Keunhong Jeong (2835539), Jin-Young Lee (295383), Seungmin Woo (12278568), Tae In Ryu (1683310), Woo-Hyeon Jeong (12278577), Yonggoon Jeon (12278571)   +7 more
core   +2 more sources

NOVICHOK (A-SERIES) NERVE AGENTS: CLASSIFICATION, CHEMISTRY, MODE OF ACTION, AND FORENSIC SIGNIFICANCE

Novichok nerve agents are classified as A-series organophosphorus compounds which represent one of the most potent and controversial categories of chemical warfare agents identified.
Mahesh Kumar, Shubham Yadav
core   +1 more source

The number of conformers explains the high toxicity of novichok agents

, 2019
In this work, molecular modelling, by semi-empirical (PM6) method is employed to study Novichok A-230 and Novichok A-234, in order to verify, by comparison of parameters, what is the reason (or reasons) for such much higher toxicity of novichok in comparison with VX. Taking into account the obtained results, is proposed that a higher polarity, combined
openaire   +1 more source

Analysis of degradation products of Novichok agents in human urine by hydrophilic interaction liquid chromatography-tandem mass spectrometry. [PDF]

Forensic Toxicol, 2023
Otsuka M, Yamaguchi A, Miyaguchi H.
europepmc   +1 more source

Verification of exposure to Novichok nerve agents utilizing a semitargeted human butyrylcholinesterase nonapeptide assay

, 2021
Novichok (NV) nerve agents were recently added to the list of Schedule 1 chemicals of the Chemical Weapons Convention. There is a well-accepted method for assessment of nerve agent exposure based on mass spectrometric analysis of a nonapeptide with the ...
Noort, D., Busker, R.W., Schans, M.J. van der, Fidder, A., Riet-van Oeveren, D. van der   +4 more
core  

In Silico Identification of Hit Compound to Counteract A-Series Nerve Agents Poisoning

Chemistry
Organophosphorus (OP) nerve agents inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) by phosphylating the catalytic serine. Oxime reactivators can restore enzymatic activity by a nucleophilic attack of the oximate anion on the ...
Nikola Maraković
doaj   +1 more source