Biological chemistry of copper compounds

1998 ◽  
pp. 19-46 ◽  
Author(s):  
L.-O. Klotz ◽  
U. Weser
Keyword(s):  
Biological Chemistry ◽  
Copper Compounds

Combast with SARS-COV-2 Virus, COVUID-19 Pandemic

2020 ◽  
Vol 5 ◽  
Keyword(s):  
Health Facilities ◽  
Political Capital ◽  
Economic Power ◽  
Biological Chemistry ◽  
The World

Department of Biological Chemistry, Ariel University, 40700 Ariel, Israel. The currently roaring corona pandemic can be seen as a leading event in the deadly outbreak controlling the various health facilities and hospitals for years. The nosocomial microbial epidemic kills thousands of people every year in Israel around the world. Hygiene is the culprit for these fatal diseases [1]. And now it seems that the politicians, in macup to take care of the eradication of the disease-causing microbe, are taking advantage of the situation for the purpose of accumulating political capital and additional economic power. There is no escape from fighting the virus and tanning that bring about its reproduction, strengthening and transformation.

Effect of a protectant copper application on Psa infection of kiwifruit trap plants

2017 ◽  
Vol 70 ◽  
pp. 310-314
Author(s):  
J.L. Tyson ◽  
S.J. Dobson ◽  
M.A. Manning
Keyword(s):  
New Zealand ◽  
Disease Control ◽  
Pseudomonas Syringae ◽  
Low Risk ◽  
Bacterial Canker ◽  
Complete Protection ◽  
Leaf Spots ◽  
Copper Compounds ◽  
Trap Plants

Pseudomonas syringae pv. actinidiae (Psa) causes bacterial canker of kiwifruit, which is an ongoing threat to New Zealand kiwifruit production. Disease control depends on orchard practices such as removal of visibly diseased material, pruning during low-risk periods, and the application of foliar bactericides. Although the use of copper compounds on Actinidia species (kiwifruit) can cause phytotoxicity, copper-based formulations remain a key component of Psa control in New Zealand. The effect of single copper applications on Psa infection of ‘Hort16A’ trap plants was studied over the Spring of 2014 (Sept—Nov). Psa leaf spots were observed at the beginning of October, appearing first on the untreated plants. Although the copper sprays did not achieve complete protection, particularly as the inoculum built up during November, the copper-sprayed plants always had less disease than the untreated plants.

scholarly journals Anaerobic Degradation of Environmentally Hazardous Aquatic Plant Pistia stratiotes and Soluble Cu(II) Detoxification by Methanogenic Granular Microbial Preparation

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3849
Author(s):  
Olesia Havryliuk ◽  
Vira Hovorukha ◽  
Oleksandr Savitsky ◽  
Volodymyr Trilis ◽  
Antonina Kalinichenko ◽  
...  
Keyword(s):  
Aquatic Plants ◽  
Anaerobic Degradation ◽  
Aquatic Plant ◽  
High Efficiency ◽  
Pistia Stratiotes ◽  
Copper Compounds ◽  
Mechanical Removal ◽  
Microbial Preparation ◽  
Copper Contaminated ◽  
Potential Parameters

The aquatic plant Pistia stratiotes L. is environmentally hazardous and requires effective methods for its utilization. The harmfulness of these plants is determined by their excessive growth in water bodies and degradation of local aquatic ecosystems. Mechanical removal of these plants is widespread but requires fairly resource-intensive technology. However, these aquatic plants are polymer-containing substrates and have a great potential for conversion into bioenergy. The aim of the work was to determine the main patterns of Pistia stratiotes L. degradation via granular microbial preparation (GMP) to obtain biomethane gas while simultaneously detoxifying toxic copper compounds. The composition of the gas phase was determined via gas chromatography. The pH and redox potential parameters were determined potentiometrically, and Cu(II) concentration photocolorimetrically. Applying the preparation, high efficiency of biomethane fermentation of aquatic plants and Cu(II) detoxification were achieved. Biomethane yield reached 68.0 ± 11.1 L/kg VS of Pistia stratiotes L. biomass. The plants’ weight was decreased by 9 times. The Cu(II) was completely removed after 3 and 10 days of fermentation from initial concentrations of 100 ppm and 200 ppm, respectively. The result confirms the possibility of using the GMP to obtain biomethane from environmentally hazardous substrates and detoxify copper-contaminated fluids.

Chiral imidazolidinones: A class of priviliged organocatalysts in stereoselective organic synthesis

2020 ◽  
Vol 5 (5) ◽  
Author(s):  
Laura Raimondi ◽  
Chiara Faverio ◽  
Monica Fiorenza Boselli
Keyword(s):  
Pharmaceutical Industry ◽  
Green Chemistry ◽  
Organic Synthesis ◽  
Catalytic Synthesis ◽  
Biological Chemistry ◽  
Chiral Molecules ◽  
Catalytic Systems ◽  
Drug Synthesis ◽  
Industry Needs

AbstractChiral molecules hold a mail position in Organic and Biological Chemistry, so pharmaceutical industry needs suitable strategies for drug synthesis. Moreover, Green Chemistry procedures are increasingly required in order to avoid environment deterioration. Catalytic synthesis, in particular organocatalysis, in thus a continuously expanding field. A survey of more recent researches involving chiral imidazolidinones is here presented, with a particular focus on immobilized catalytic systems.

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