Anaerobic ammonium-oxidizing (anammox) bacteria convert ammonium and nitrite into N2 in a chemolithoautotrophic way, meaning that they utilize CO2/HCO3 solely as their carbon sources. Such autotrophic behavior limits their competitiveness with heterotrophic microorganisms in both natural environ...

One-third of the CO2 released in the atmosphere by anthropogenic activities is absorbed by the oceans determining a dramatic change in seawater chemistry. In fact, CO2 reacts with water to form carbonic acid (H2CO3), which being unstable dissociates into hydrogen ions (H+) and bicarbonate (HCO3−...

Blue shifts in the spectral maxima of the 2-methyl 8-quinolinolates relative to the 8-quinolinolates of gallium, indium and thallium (III) appear to be due to steric hindrance and vary in the expected inverse relationship with respect to the size of the metal ion. In the absence of steric hindra...

Fluorescence lifetimes of aluminium, gallium, indium, magnesium, zinc, and cadmium 5-sulfo-8-quinolinolates are reported. A method for the simultaneous determination of two components based on the difference in their fluorescence lifetimes is given. The method is applied to determinations of alu...

Conditions for the simple, rapid and sensitive determination of magnesium in biological samples have been determined. Commercially available solvents and reagents are used without further purification. Magnesium is separated and converted to a form which may be measured spectrophotometrically in...

2,2′-Diamino-6,6′-dimethylbiphenyl was found to be an efficient ligand in the palladium-catalyzed Suzuki–Miyaura coupling reactions of aryl iodides, bromides, and chlorides and Mizoroki–Heck reactions of aryl iodides and bromides. Under appropriate conditions, all reactions gave the desired ...

The protective effects of cholecystokinin (CCK) against glutamate-induced cytotoxicity were examined using cultured neurons obtained from the rat cerebral cortex. Cell viabiilty was significantly reduced when the cultures were briefly exposed to glutamate or N-methyl-d-aspartate (NMDA) and then ...

The increasing use of sterilization as a means of permanent contraception prompts the search for simpler, safer methods. Methyl 2-cyanoacrylate 0.6 ml was administered to the uterocornual tubal junction with the use of the FEMCEPT transcervical delivery system in 35 healthy parous women aged 30 ...

The structure of the abundant C30 4-methyl steranes of ancient freshwater lacustrine sediments and derived oils is of interest as their precursors, the 4-methyl and, in particular, 4α,23,24-trimethyl, sterols (dinosterols) are reported to be specific to dinoflagellates. This study employs a nov...

Easily accessible bis(diisopropylamino)alkylphosphines (alkyl is methyl, n-butyl or n-octyl) are convenient reagents for the synthesis of DNA fragments having an alkylphosphonate or alkylphosphonothioate linkage at a predetermined site in solution and on solid support.

Regioselective complexation of the dimethoxy arene ring of canadine to the Cr(CO)2 moiety gives two diastereoisomers which are separated by flash chromatography. Deprotonatlon of either diastereoisomer with n-butyllithium followed by addition of methyl iodide or trimethylsilyl chloride gives C11...

The synthesis of 7-oxy-3-(3,4,5-trimethoxyphenyl)coumarin tetra-substituted indium(III) phthalocyanine complexes have been performed for the first time in this study. The new compounds were characterized by IR, 1H NMR, electronic spectroscopy and mass spectra. The photochemical properties such a...

In the present work, the investigation of gold(III) phthalocyanine chloride (AuClPc) which received very little attention before is progressed further using a range of optical spectroscopic techniques. Thin films of gold(III) phthalocyanine chloride were produced by organic molecular beam deposi...

This work reports on the synthesis of glutathione functionalised Ag3Au1 (Ag rich alloy, denoted as AgAu) and Ag1Au3 (Au rich alloy – denoted as AuAg) nano alloys as well as aminopropyl triethoxylsilane capped Ag1Au3 doped silica nanoparticles (NPs). The NPs were covalently linked to indium(III)...

The new phthalonitriles (1 and 2) and zinc, indium, magnesium metalled tetrasubstituted phthalocyanines bearing 7-oxy-4-(pyridine-3-yl)coumarin substituents in the peripheral (1a-c)/non-peripheral (2a-c) positions were prepared for the develop novel water-soluble phthalocyanines. Newly synthesiz...

This study reports on novel phthalocyanines having benzimidazole units which are known to have biological properties. 4-(4-(5-chloro-1H-benzo[d]imidazol-2-yl) substituted metal-free, Zn(II), In(III) and Ga(III) phthalocyanines were synthesized, these newly synthesized molecules that were substit...

This work reports on the synthesis and characterization of phthalocyanines (M = Ga(III) and In(III)) which is peripherally tetra-substituted with 4-(4-hydroxyphenyl)butan-2-one and also with 1-(4-hydroxyphenyl)propan-1-one. Confirmation of the synthesized phthalocyanine structures performed with...

Three chloroindium(III) phthalocyanine derivatives bearing four aromatic (naphthalene or pyrene) or aliphatic (hexylthio) groups were prepared from corresponding phthalonitrile compounds. The indium(III) phthalocyanine derivatives were characterized with elemental analyses, mass, proton nuclear ...

In this study, 7-(diethyl 2-methylmalonatoxy)-3-[p-(3,4-dicyanophenoxy)phenyl]coumarin (3), 7-(diethyl 2-methylmalonatoxy)-3-[p-(2,3-dicyanophenoxy)phenyl]coumarin (4) and their related peripheral and non-peripheral tetra substituted zinc(II) (3a and 4a) and indium(III)chloride (3b and 4b) phtha...

A novel class of natural PPAR agonists, 2,4-dimethyl-4-hydroxy-16-phenylhexadecanoic acid 1,4-lactone (1), were discovered in marine natural product libraries. The synthesis of 1 was accomplished starting from vinylmethyl ketone. Ring formation of the α,γ dialkyl γ-lactone was achieved via th...