Witek, Rafal

A new contrast agent (SPION/HA-FA) is disclosed, consisting of superparamagnetic iron oxide nanoparticles (SPION) surface-stabilized with low-molecular weight hyaluronic acid (HA) with covalently bound folic acid (FA) and the process for the preparation thereof. The contrast agent of the invention is particularly suitable for the imaging of neoplastic tumors using the magnetic resonance imaging (MRI) technique.

Novel derivatives of 4,6-dimethylisothiazolo[5,4-b]pyridine conjugated with an N-acetylhydrazone moiety according to formula (1), suitable for use in the treatment or prevention of cancer, especially malignant melanoma, and a method for their preparation have been disclosed. <img class="EMIRef" id="36937f10-9862-4739-8924-1fda77dea345-ia01" />

The subject of the invention is an airtight connection of an element made of a first material with a second element made of a second material, wherein the second material is different than the first material, and the first element comprises a first part, which constitutes a bare end, extending from the second part, and the second element comprises a socket part on at least one of its ends, characterised in that the second element (B), in the socket part, has an outer flange (C) and an inner flange (D), and the first part (A1) of the first element (A) is connected by means of anchors (GW) with the inner flange (D) of the socket, and the second part (A2) of the first element (A) is connected by means of anchors (GZ) with the outer flange (C), wherein sealing layers (E) are located between the first part (A1) and the outer flange (C) and between the second part (A2) and the inner flange (D). The invention also relates to a method of constructing a shelter using the above connection, a shelter module, and a modular shelter.

A catalyst based on zeolite with a controlled distribution of aluminium atoms in the zeolite structure and with a specific location of divalent transition metal cations, such as iron and zinc cations, in the zeolite and a method for producing acetic acid and methyl acetate from carbon dioxide and methane using such a catalyst are disclosed. The structure of the zeolite is selected from CHA, FER, MOR and *BEA.

Disclosed is a method for limiting the activity of predatory fungi Zoophagus or Lecophagus that threaten Lecane rotifers capable of reducing the bulking of activated sludge in wastewater treatment plants, which involves the use of a glycerol solution in a concentration ranging from 0.005% to 0.1% in the aeration chamber of an activated sludge system, deactivating the predatory fungi without harming the rotifers.

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …