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不同方法修饰玻璃表面制备蛋白质芯片的对比
引用本文:蒋犁,余章斌,张春秀,唐祖明,陆祖宏,蒋涛.不同方法修饰玻璃表面制备蛋白质芯片的对比[J].东南大学学报(自然科学版),2007,37(1):136-140.
作者姓名:蒋犁  余章斌  张春秀  唐祖明  陆祖宏  蒋涛
作者单位:1. 东南大学临床医学院,南京,210009
2. 东南大学临床医学院,南京,210009;南京市妇幼保健院,南京,210004
3. 东南大学生物电子学国家重点实验室,南京,210096
4. 南京市妇幼保健院,南京,210004
摘    要:分别采用3-氨基丙基-三甲氧基硅烷、戊二醛、多聚赖氨酸、聚丙烯酰胺、琼脂糖、硝化纤维修饰玻璃表面,对6种不同修饰表面制备的蛋白质芯片进行对比研究,探讨制备蛋白质芯片的合适玻璃表面修饰方法.利用原子力学显微镜对其表面进行表征,通过点样蛋白于修饰后的玻片表面制备蛋白质芯片,比较不同修饰表面对蛋白质的固定效率和固定效果.结果发现:氨基、醛基、聚赖氨酸修饰玻片为二维平面结构,琼脂糖、聚丙烯酰胺、硝化纤维修饰玻片其表面不仅有多孔结构,而且有一定厚度;琼脂糖修饰玻片所得的荧光强度最高,背景较低,是一种理想的制备蛋白质芯片的表面修饰方法.

关 键 词:蛋白质芯片  氨基修饰  戊二醛修饰  聚赖氨酸修饰  聚丙烯酰胺修饰  琼脂糖修饰
文章编号:1001-0505(2007)01-0136-05
修稿时间:2006-04-07

Comparison between different modificative strategies of glass surfaces to prepare protein microarrays
Jiang Li,Yu Zhangbin,Zhang Chunxiu,Tang Zuming,Lu Zuhong,Jiang Tao.Comparison between different modificative strategies of glass surfaces to prepare protein microarrays[J].Journal of Southeast University(Natural Science Edition),2007,37(1):136-140.
Authors:Jiang Li  Yu Zhangbin  Zhang Chunxiu  Tang Zuming  Lu Zuhong  Jiang Tao
Institution:1 School of Clinical Medicine, Southeast University, Nanjing 210009, China;2 State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China;3Nanjing Maternity and Child Health Hospital, Nanjing 210004, China
Abstract:Glass slides were modified with 3-aminopropyltriethoxysilane,glutaraldehyde,poly-L-lysine,polyacrylamide,agarose film,and nitrocellulose to prepare protein microarrays.Atomic force microscopy was used to obtain three-dimensional surface profiles of the modified glass surfaces.The efficiency and the effects of immobilized proteins on the glass were compared.The results indicate that aminosilane,glutaraldehyde,and poly-L-lysine coated glass slides show two-dimensional surfaces;while glass slides modified with polyacrylamide,agarose,and nitrocellulose possess more holes and greater thickness.Agarose film coated glass slides demonstrate highest immobilization capacity,and lowest background,which is more suitable for preparing protein microarray.
Keywords:protein microarray  aminosilane modification  glutaraldehyde modification  poly-L-lysine modification  polyacrylamide modification  agarose modification
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