Study of Al_2O_3/PEG Sol-gel Complex Materials and Tyrosinase Immobilization;

The preparation of PEG column and its application in the determination of the contents of ethyl caproate and ethyl lactate in Luzhou-flavor liquors had proved its superiorities including comparatively better separation effects,rapid determination operation,accurate determination results and economic durability.

Previous attempts to establish satisfactory long-acting and sustained release system loaded with GM-CSF include PEGylation,liposomal carriers,polymer microspberes and matrix etc.

AIM:To study the methods of the pegylation of poly beta peptide and its anti-metastasis effect.

PEGylation,so called polyethylene glycol modification or chemical modifcation,is one of the most important technologies in molecular allosteric chemistry.