The conversion of enzymes into water-insoluble products possessing specific catalytic activity is of interest, since such water-insoluble enzyme derivatives can readily be removed from the reaction mixture and can be used for the preparation of columns with enzymatic activity. When stable, they can be employed repeatedly to induce specific chemical changes in relatively large amounts of substra...

Our aim was to investigate the effects of Maillard reaction products (MRPs) from bread crust (BC) on bone composition and its mechanical properties, determining whether any such effects are related to the molecular weight of different MRPs. For 88 days after weaning rats were fed a control diet or diets containing BC, or its soluble low molecular weight (LMW), soluble high molecular weight (HMW...

The analysis of insoluble proteins represents a major technical challenge for the field of proteomics. For example, membrane proteins are often insoluble in common solvents and represent 20-30% of the proteins encoded by the human genome. Chemical analysis on an individual basis is often required and is laborious and time consuming. This review presents an overview of methods for purification o...

In this review, a new classification of elements based on behavior in hydrofluoric acid (HF) solution is presented for the precise quantitative analysis of each element by inductively coupled plasma mass spectrometry (ICP-MS). The elements are divided into 7 groups: (1) "fluorophile" elements; (2) insoluble fluoride-forming elements; (3) "bromophile" or "iodophile" elements; (4) "oxophile" elem...

Hybrid films composed of reduced graphene oxide (RG-O) and Cu nanowires (NWs) were prepared. Compared to Cu NW films, the RG-O/Cu NW hybrid films have improved electrical conductivity, oxidation resistance, substrate adhesion, and stability in harsh environments. The RG-O/Cu NW films were used as transparent electrodes in Prussian blue (PB)-based electrochromic devices where they performed sign...

In the article we intend to present some recent achievements in the chemistry and physics of 3d and f electron mixed valence systems based on the Prussian blue in the field of molecular magnetism. Prussian blue is sometimes considered as the first coordination compound and in the paper we would like to demonstrate how it is possible to obtain completely new results based on the old one compound.