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On the basis of the physical properties of magnetic fluids a new technique of whole-body hyperthermia is proposed. Subdomain dextran stabilized magnetite particles injected into the blood-stream can be efficiently heated using an external high-frequency magnetic field, which allows rapid and controllable delivery of heat to the patient's blood, which may be(More)
Polysaccharides represent the major part of the yeast cell wall dry weight and build the skeletal carcass defining cell wall stability and cell morphology (beta-D-glucans) or constitute amorphous matrix and cell surface fibrous material (mannans and mannoproteins). It is known that yeast cell wall beta-D-glucans reveal immunomodulating properties, which(More)
Human serum albumin labeled with technetium-99m was encapsulated together with magnetite particles into phosphatidylcholine/cholesterol liposomes. In order to investigate the stability of this complex and its ability to be used for magnetic drug targeting, the in-vivo distribution after intravenous administration in rats was estimated. For in-vivo targeting(More)
Magnetic nanoparticles for therapy and diagnosis are at the leading edge of the rapidly developing field of bionanotechnology. In this study, we have theoretically studied motion of magnetic nano- as well as micro-particles in the field of cylindrical Halbach array of permanent magnets. Magnetic flux density was modeled as magnetostatic problem by finite(More)
BACKGROUND Nanomaterials are at the leading edge of the rapidly developing field of nanotechnology. Magnetic nanoparticles for cancer therapy and diagnosis have been developed on the basis of their unique physico-chemical properties not present in other materials. Their versatility is widely exploited in such diverse techniques as cell and macromolecule(More)
Large unilamellar magnetoliposomes (MLs) with encapsulated doxorubicin (DOX) (anticancer drug) were prepared by reverse-phase evaporation. They were exposed to an alternating magnetic field with a frequency of 3.5 MHz and an induction of 1.5 mT produced in three-turn pancake coil. The results showed that magnetoliposomes could be specifically heated to 42(More)
We have evaluated heating capabilities of new magnetic nanoparticles. In in vitro experiments they were exposed to an alternating magnetic field with frequency 3.5 MHz and induction 1.5 mT produced in three turn pancake coil. In in vivo experiments rats with injected magnetic nanoparticles were also exposed to an ac field. An optimal increase of temperature(More)
A new method of cancer treatment is proposed, based on the unique magnetic properties of ferritin iron core which, in alternating magnetic field of frequency approximately 100 kHz, is easily heated to temperatures sufficiently high to destroy neoplastic cells containing an excess of this protein, without damaging the normal cells.
We have studied the calcium-induced aggregation of phosphatidylserine liposomes in the presence of various concentration of a high-molecular water-soluble polysaccharide dextran. It has been shown that threshold concentrations of calcium necessary to induce liposome aggregation in the presence of approximately 1 mM concentration of dextran is about one(More)
Antioxidative capabilities of carboxymethylated (1 --> 3)-beta-D-glucan from Saccharomyces cerevisiae cell wall, alpha-tocopherol, and mannitol against lipid peroxidation in phosphatidylcholine liposomes induced by OH. radicals produced with Fenton's reagent (H(2)O(2)/Fe(2+)) were studied using absorption ultraviolet-visible spectrophotometry. It was found(More)