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The technical solution concerns an optical device for pH measurement, eg in biological samples, using a fiber-optic probe with immobilized fluorescent dye

The described element is intended to provide a substantial information about the protected document if stolen, and then tracked. Its major use is supposed for archives, galeries, museums, art collections etc. It contains a combination of specific elements from the periodic table with a distinctive XRF response. Ususally there are four elements in use. Their combinations when using their diffrent amounts, typically up to 5 levels for each, allow a high number of codes to be encrypted.

The system coprises a thin element for the visual monitoring of the exposition dose. Its application is expected in various practical fields, such as phototherapy, museums, skin protection, food safety, phramaceuticals safety, construction materials, etc. The time variable is calibrated via the colour change. It is based on the utilisation of different stabilites of many tested chemicals. Their light induced decomposition is manifested as decolorization. The decolorization is described kinetically, and then associated in a cumultaive form with a certain characteristic dose. The dose reflects the amount of absorbed light, and it has many practical consequences in the mentioned fields.

Solution relates to the preparation of new N-alkylamides of alginic acid of formula, in which are those the modification attending in the carboxylic acid groups by esterification followed by an amino-de-alkoxylation and by direct amidation or amino de alkoxylation of an ester to aid microwave heating. This modification results in attachment of various long chain alkyl (depending on the amine used) and the obtained compound obtained hydrophobic character. Of the amines used was selected n-butylamine, n-hexylamine, n-octylamine, n-dodecylamine and n-octadecylamine. Hydrophobic amidated derivatives containing n-alkyl (C4 to C18) are able to function as sorbents nonpolar compounds and thereby decrease the in vivo levels of neutral sterols and triglycerides. Alginates are extracted from brown algae (Phaeophyceae) and have a wide industrial application. This procedure is a modification extends the possibility of recovery.

The technical solution relates to a hydrolysate containing a mixture of amino acids, peptides and other biogenic substances prepared from a troublesome protein waste material containing keratin and fat, for example, from poultry feathers or animal hair. The hydrolysate, prepared in the presence of a weak carbonic acid containing no any extraneous substances, meet the raw material requirements for the preparation of complex nutrition mixtures applicable as animal feed and bio-stimulant or special fertilizers. The essence of the technical solution presented relates to the hydrolysate prepared in the presence of a weak carboxylic acid, e.g. malic acid at pressure below 1.0 MPa. and containing a mixture of amino acids, proteins, tri-acyl-glycerides, di-acyl-glycerides, mono-acyl-glycerides, aliphatic carboxylic acids, without any salts and low level of mineral ash forming components.

Technical solution concerns the composition of powdered additives in concrete, in contact safety additive photocatalytic self-cleaning and disinfection function.

The present invention is a device for the preparation of an asphalt mixture based on an eutectic mixture of plastics, particularly suitable for the additive of packaged mixtures for the construction of new pavements, the use of which can be solved by the above mentioned deficiencies, in particular by allowing the device to melt on the basis of microwave energy a mixture of waste plastics that subsequently binds themselves to create a final additive with a different softening temperature. Thus, the additive thus prepared is characterized by a different softening temperature, is bulk stable and sufficiently brittle to subsequently grind it. Additives prepared in this way are also suitable for mixtures containing recycled particles of old pavements as they increase their ratio in packed mixtures, thereby greatly reducing the cost of producing new pavements.

Beverage enriched with cane extract is prepared from grapevine juices or fruits juices and other beverages respectively to which an alcoholic extract of the grapevine cane containing trans-resveratrol and its oligomers, e.g., trans-epsilon-viniferin, is added. The resulting beverage has positive health effects.\n

Sorption materials based on amorphous alkaline titanates according to the technical solution are used mainly as highly effective sorbents of radionuclides from contaminated waters, from wastewater of nuclear power plants, etc. They can be used for remediation technologies in liquidation of environmental burdens or directly for liquidation of environmental accidents.