Pea histones H2a, H2b, H3, and H 4 have been isolated and their interactions studied by fluorescence anisotropy, light scatter, and circular dichroism. Histones H3 and H 4 are almost identical in plants and animals, but plant histones H2a and H2b differ markedly from their mammalian counterparts. Pea H2b has a molecular weight approximately 20% greater than that of calf thymus H2b; the amino ac...

Ethylenediaminetetraacetic (EDTA), cyclohexane-1,2-diaminetetraacetic (CDTA) and diethylenetriaminepentaacetic (DTPA) acids were investigated and compared as complexing agents for the speciation of chromium(VI/III), vanadium(V/IV) and iron(III/II) ions by capillary electrophoresis. The chromium(III) was selectively chelated with DTPA in order to impart a negative charge and similar mobility to ...

It was reported in previous studies that inhibitory concentrations of certain chelating or complexing agents did not inhibit several microorganisms when these agents were tested simultaneously (Feeney, 1951; Feeney and Nagy, 1952). Amounts of the metal-binding agents which were strongly inhibitory when tested alone were necessary in order to obtain these mutual preventions of inhibitory action....

a method for the controllable synthesis of silver nanoparticles based on a complexing agent method was developed. citric acid was used as a complexing agent. the effect of ph (1.6 to 5.17) on the size and net height (as obtained from xrd analyses) of silver nanoparticles was investigated. the nanoparticles (10 to 40 nm) were characterized using xrd, tem, sem, edx, uv-vis spectroscopy and tg/dtg...

A method for the controllable synthesis of silver nanoparticles based on a complexing agent method was developed. Citric acid was used as a complexing agent. The effect of pH (1.6 to 5.17) on the size and net height (as obtained from XRD analyses) of silver nanoparticles was investigated. The nanoparticles (10 to 40 nm) were characterized using XRD, TEM, SEM, EDX, UV-Vis spectrosco...

ABSTRACT The copolymerizations of vinyl chloride with o-olefin or acrylic compounds were investigated with organometallic compounds as catalysts. In general, organoaluminium compounds need to be treated with a complexing agent such as tetrahydrofuran prior to use. Otherwise the former reacts with polyvinyl chloride and loses its activity. The copolymer of vinyl chloride and propylene was thus o...