METHOD FOR PREPARING YTTRIUM-ALUMINOSILICATE GLASS MICROSPHERES FOR RADIATION THERAPY Russian patent published in 2014 - IPC C03B19/10 

FIELD: medicine.

SUBSTANCE: method for preparing yttrium-aluminosilicate glass microspheres for the radiation therapy involves glass melting from the agents Y₂O₃, Al(OH)₃ and SiO₂ at temperature 1600-1650°C and glass working by rolling through chill heat-resistatn metal rolls. The prepared microparticles are modified by etching in hydrochloric acid HCl at pH=1-3 and temperature 10-79°C.

EFFECT: preparing the microspheres for the radiation therapy a surface layer of which is low in yttrium oxide for the purpose of optimising the yttrium atom diffusion into the human body.

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