Diatoms are known to produce a variety of halogenated compounds, which were recently shown to have a role in allelopathic interactions between competing species. The production of these compounds is linked to haloperoxidase activity. This research, has shown that this system may also be involved in diatom-bacteria interactions via the H2O2 dependent inactivation of a type of quorum sensing (QS)...

A study on the degradation of both halogenated and non-halogenated polymers has been made by x-ray photoelectron spectroscopy two different types common place spectrometer. The results herein are compared with index Beamson Briggs, a notable difference was observed. effects neutraliser spot size kinetics explored lead to simple recommendations for successful analysis damage-susceptible polymers.

CONTEXT Anesthetic drugs including halogenated anesthetics have been common for many years. Consequent hepatic injury has been reported in the literature. The mechanism of injury is immunoallergic. The first generation drug was halothane; it had the most toxicity when compared to other drugs. The issue becomes more important when the patient has an underlying hepatic dysfunction. EVIDENCE ACQ...

Marine algae produce a cocktail of halogenated metabolites with potential commercial value. Structures exhibited by these compounds go from acyclic entities with a linear chain to complex polycyclic molecules. Their medical and pharmaceutical application has been investigated for a few decades, however other properties, such as antifouling, are not to be discarded. Many compounds were discovere...

CONTEXT Halogenated inhalational anesthetics are currently the most common drugs used for the induction and maintenance of general anesthesia. Postoperative hepatic injury has been reported after exposure to these agents. Based on much evidence, mechanism of liver toxicity is more likely to be immunoallergic. The objective of this review study was to assess available studies on hepatotoxicity o...

This article reports an efficient CH activation process for regioselective halogenation of 1,4-benzodiazepinones. Direct halogenation with NXS (X = Br, I) affords halogenated benzodiazepinones on the central aromatic ring whereas catalyst (Pd(OAc)2) controlled CH activation furnishes regioselectively ortho halogenated benzodiazepinones on the phenyl side chain.

Macrocyclic compounds like crown ethers, calixarenes, etc. are well explored in the literature as receptors for alkali metal ions. In most of these studies, the size of the macrocyclic cavity has evolved as the prominent determining criterion for the selective binding of various ions. However, approaches to systematically tailor the ion transport properties via the interplay of topological as w...

This paper presents the results of a study random copolyethersulfone sulfides based on 4,4-dichlorodiphenylsulfone, 1,1-dichloro-2,2-di(4-hydroxyphenyl)ethylene, and sodium sulfide. The synthesis with different ratios polyethersulfone polyphenylenesulfone sulfide units was carried out by high-temperature polycondensation reaction nucleophilic substitution in N,N-dimethylacetamide medium using p...

Non-halogenated “all-in-one” flame retardant HDPE.

A new processing protocol based on non-halogenated solvent and additive is developed to produce polymer solar cells with power conversion efficiencies better than those processed from commonly used halogenated solvent-additive pair. Morphology studies show that good performance correlates with a finely distributed nanomorphology with a well-defined polymer fibril network structure, which leads ...