Catalytic activity of acetylcholinesterase immobilized on mesoporous molecular sieves

详细信息    查看全文

• 作者：M.C. Rosales-Herná ; ndez ; J.E. Mendieta-Wejebe ; J. Correa-Basurto ; J.I. Vá ; zquez-Alcá ; ntara ; E. Terres-Rojas ; J. Trujillo-Ferrara
• 关键词：MCM-41 ; FSM-16 ; Immobilization ; AChE ; Catalytic activity
• 刊名：International Journal of Biological Macromolecules
• 出版年：2007
• 出版时间：10 April 2007
• 年：2007
• 卷：40
• 期：5
• 页码：444-448
• 全文大小：509 K

文摘

MCM-41 and FSM-16 were used for enzyme immobilization on account of their good physical and chemical properties. In this work, the catalytic activity of acetylcholinesterase (AChE) immobilized on these materials was investigated, using neostigmina as AChE inhibitor. The results show that AChE was adsorbed on MCM-41 and on FSM-16-TIPB. AChE immobilized on the latter material maintained 70 % of its activity and the material did not hydrolyze ACh (as MCM-41) by itself. Therefore, FSM-16-TIPB was the best material, considering also that when neostigmine was applied to AChE immobilized on FSM-16-TIPB, the activity of AChE decreased as occurs in its free from. Hence, this model could be useful in the evaluation of different kinds of AChE inhibitors, allowing the recycling of enzymes and making possible several assays and thereby, lowering cost.