Abstract: Chlorotoxin derivatives containing amino acid sequence X0X1CMPCXS1XS2XS3DHXS4XS5ARRCX2X3CCGGYGX4CFGYQC LCX5X6X7X8 wherein (i) the N-terminal X0X1 cluster is AM, 0M, or 00; (ii) the solubility XS1XS2XS3XS4XS5 cluster is FTTQT, FTTES, SSSQT, SSSES, FSSQT, FSSES, or FSSQS; (iii) the internal X2X3X4 cluster is DKR, RDK, KDR, IKY, HKW, DRK, LKQ, KKK; and (iv) the C-terminal X5X6X7X8 cluster is N000, R000, NR00, NRG0, NRGY, NRRR, or RRRR; 0 denotes a position where no amino acid is present; the chlorotoxin derivative has a relative human MMP-2 binding that is at least 1.62 times higher than the wild-type chlorotoxin of SEQ ID NO: 1.

Abstract: A process for laser brazing of aluminum alloys, in which joints are coated with an agent which absorbs laser energy. Fluxes suitable for brazing aluminum, in particular potassium fluoroaluminate-containing fluxes, flux pastes or flux/metal powder mixtures, are used as the agents which absorb laser energy.

Abstract: The subject of the invention is method and device system for entering and retrieving information in the surface layer of objects made of solid matters. The information is entered with a (concentrated) beam directed to the surface and having a power density selected to induce permanent change at least in the surface layer of the material's structure in a way that the power density of the beam is smaller that the power density of the beam causing visible deformation, but bigger than that of the beam that causes (within the order of magnitude of the beam's diameter) inhomogeneities commensurable with the structural inhomogeneities generally present in the material. The invention can be used for all materials, the structure or internal stress of which can be modified with high energy density surface treatment (at the location of the treatment) (specially with the local laser treatment of ferromagnetic material).

Abstract: A method is provided for removing a solid phase from a liquid substance, which is kept in a continuous turbulent flow. The method is characterized by adding simultaneously at consecutive places in the flow direction of the liquid substance, cement, iron (III)-chloride-sulfate and an anion polyelectrolyte. Cement is added at a first place, iron (III)-chloride-sulfate at a second place and anion polyelectrolyte at a third place.