A method is described for isolating lectins in pure form and quantitative yield in a single step by affinity chromatography on aminoethyl polyacrylamide gels containing reductively aminated disaccharide residues. The affinity columns were prepared in two steps: (a) direct reductive amination of the disaccharide and aminoethyl gel with sodium cyanoborohydride in aqueous solution at pH 9; (b) N-a...

the aims of the study were to investigate the effect of poly(ε -caprolactone) (pcl) and nano- sio2 within the thermoplastic starch (tps) blends on the rate and extent of starch enzymatic hydrolysis using enzymes α-amylase and amyloglucosidase. the results of this study have revealed that blends with nano-sio2 content at 6 wt% exhibited a significantly reduced rate and extent of starch hydrolysi...

monly used in pharmacotherapy in ophthalmology as far as convenience and safety are concerned. However, absorption of drugs after instillation is restricted because of the barrier properties of surface ocular tissues, such as the cornea and conjunctiva. Use of penetration enhancers is one means of improving such restrictions. From a safety point of view, it is important to maintain the viabilit...

Abstract This paper presents the results of wastewater treatment at a mining enterprise developing complex ore deposit in Murmansk region, Russia. The main pollutants are sulfate, manganese, and strontium. For this treatment, two-stage scheme was proposed tested using two sorbents (at pH 6): an aminated peat biosorbent to remove sulfate commercial sorbent based on mineral brucite metals. Optima...

We describe a detailed study on the possibility of analyzing aminated pesticides and metabolites using pre-column derivatization with fluorescein isothiocyanate (FITC) and their subsequent separation and detection by cyclodextrin capillary electrophoresis-laser-induced fluorescence (CE-LIF) detection. Different variables affecting the derivatization reaction (pH, FITC concentration, reaction ti...

Nanodiamonds functionalized with different organic moieties carrying terminal amino groups have been synthesized. These include conjugates generated by Diels-Alder reactions of ortho-quinodimethanes formed in situ from pyrazine and 5,6-dihydrocyclobuta[d]pyrimidine derivatives. For the quantification of primary amino groups a modified photometric assay based on the Kaiser test has been develope...