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Zastosowanie nanotechnologii i materiałów nanostrukturalnych w produktach konsumenckich i przemyśle stale rośnie, a wraz z nim rośnie zawartość nanocząstek w środowisku. Jednym z priorytetów międzynarodowych programów badań naukowych jest opracowanie odpowiednich metod badania i oznaczania nanocząstek. Ogromnym problemem jest analiza jakościowa i ilościowa nanocząstek w próbach środowiskowych ze względu...
In this paper, use of electron spin resonance methods in biological investigations and trends in their development are presented. The first method, spin trapping technique consists in using of spin traps, i.e. compounds that form a stable free radical by reacting with an unstable free radical. Hydroxyl radical generation by living human granulocytes stimulated by dihydralazine was determined by ESR...
Precise and cheap methods for fast detection of drugs for the purposes of administration of appropriate medication are of paramount importance in clinical practice. Nowadays, many pharmaceutics with a high toxicity and narrow margin of safety are applied, so they should be delivered very precisely. Electrochemical methods have been used to determine the concentration of benzodiazepines, phenothiazines...
Chlorpromazyna (Chlorpromazine*) jest neuroleptykiem z grupy fenotiazyn, wykazującym działanie uspokajające, stosowanym w zespołach urojeniowych, psychozach oraz jako środek przeciwwymiotny. Czujnik amperometryczny, zaprojektowany jako układ trójelektrodowy z pracującą elektrodą węglową, został wykonany metodą sitodruku na folii. Tak otrzymane czujniki są tanie, łatwe w użytkowaniu, nadają się do...
In this paper a method of obtaining of the urea biosensor, based on detection of ammonium ions is presented. The preliminary experimental results concerning detection of urea in human plasma are given. Methods of selection of solution for conditioning and storing of urea biosensors are described. Additionally, the results concerning influence of EDTA and Na5P3O10, as additions for tris/HCL buffer,...
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