Abstract: The present invention relates to supramolecular biomedical polymers comprising quadruple hydrogen bonding units and to a process for preparing such a supramolecular biomedical polymer and porous biomedical implants thereof. The supramolecular biomedical polymers are particularly suitable for the production of porous biomedical implants that need high strength, elasticity, durability, and slow biodegradation, e.g. medical implants for living tissue regeneration within a mammal, such as the treatment of cardio-vascular diseases, medical prolapses, and hernias.

Abstract: A method for crypting one or more data blocks comprising: providing a main table 100 comprising a circular array of K randomly distributed bits with a predetermined start point, generating a master key 504 based on a series expansion of a user key, generating a first set of tumblers 506 using the master key, wherein each element of the master key defines a unique bitwise rotation of the main table from the predetermined start point, performing an XOR operation on the first set of tumblers to form a mask of K bits 508; generating a block key 512 based on the mask; and crypting 514 the one or more data blocks with an XOR operation of the block key.

Abstract: A method for crypting one or more data blocks comprising: providing a main table 100 comprising a circular array of K randomly distributed bits with a predetermined start point, generating a master key 504 based on a series expansion of a user key, generating a first set of tumblers 506 using the master key, wherein each element of the master key defines a unique bitwise rotation of the main table from the predetermined start point, performing an XOR operation on the first set of tumblers to form a mask of K bits 508; generating a block key 512 based on the mask; and crypting 514 the one or more data blocks with an XOR operation of the block key.

Abstract: A method for producing Ac-225 is presented, wherein Ac-225 is produced by bombardment of Ra-226 with deuterons accelerated in a cyclotron. The deuterons preferably have an incident energy of between 15 and 22 MeV. The method, which allows production of Ac-225 at high yields and purity levels, is particularly interesting in view of Bi-213 generation.

Abstract: The invention relates to a method of loading a mother radionuclide into a radionuclide generator which comprises an cation exchange material, the said method comprising a preliminary step which consists in passing over said material a solution containing the mother radionuclide and a complexing agent for said radionuclide, said complexing agent being at an effective concentration so as to prevent the mother radionuclide from concentrating solely in one part of the volume of the cation exchange material, the cation exchange material being chosen in the group consisting of the macroporous resins and the resins having a crosslinking rate of from 1 to 12%. This method is applied to radioisotope generators which emit ? particles and are used in particular in the field of radiotherapy.

Abstract: This invention relates to a method and an apparatus for preparing Bi-213 to be integrated in a radioimmunocojugate for human therapeutic use. According to the invention the method comprises the sequence of steps as follows: a) an ampoule 5 containing colloid-free actinium-225, obtained from drying an actinium nitrate solution, is loaded into a container 20 provided with radiation panels 21; b) a dissolving medium is poured into the ampoule 5; c) the solution obtained in the ampoule is transferred into an ion exchange column 6; d) an elution medium is circulated through the column 6; e) the eluate containing eluted Bi-213 is pumped towards a vial 10 for quantification and quality control.

Abstract: This invention relates to an ex-corpore method of treating human blood cells incorporating tumour cells particularly in the frame of High-Dose Chemotherapy and/or Total Body Irradiation

Abstract: This invention refers to a method for producing Actinium-225, comprising the steps of preparing a target (1) containing Radium-226, of irradiating this target with protons in a cyclotron and of chemically separating Actinium from the irradiated target material thereafter. According to the invention the proton energy in the cyclotron is adjusted such that the energy incident on the Ra-226 is between 10 and 20 MeV, preferably between 9 14 and 17 MeV. By this means the yield of production of the desired isotope Ac-225 is enhanced with respect to other radioisotopes.