化学力显微镜对ω-巯基正十一胺自组装单分子膜的力滴定研究
Force Titration of ω-Mercapto-n-undecylamine Self-assembled Monolayers by Chemical Force Microscopy
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | Chinese (Simplified) |
|---|---|
| Pages (from-to) | 1738-1741 |
| Journal / Publication | 高等学校化学学报 |
| Volume | 21 |
| Issue number | 11 |
| Publication status | Published - Nov 2000 |
| Externally published | Yes |
Link(s)
Abstract
采用化学力显微术(CFM)研究了一种长链氨基自组装单分子膜的力滴定性质, 考察了表面基团性质不同的力探针对力滴定的影响; 测定了金包覆的Si3N 经— OH和— NH2 基功能化的金样品之间的粘滞力,得到了作为溶液pH值函数的粘滞力曲线(力滴定曲线) . 结果表明, — NH2 和— O H基功能化的表面pK1/2分别为8. 4和9. 0.
Chemical force microscopy (CFM) was used to measure the adhesion forces between Au-coated Si3N4 tip functionalized with - OH and - NH2 groups and gold sample functionalized with - NH2 groups. The curves of the adhesion force as the function of the solution pH values (force titration curve) was obtained. The pK1/2 of surface - NH2 groups estimated from the force titration curve is 8. 4 by - OH functionalized tip and 9. 0 by - NH2 functionalized tip.
Research Area(s)
- 原子力显微术, 化学力显微术, 力滴定, 自组装膜, 粘滞力, Atomic force microscopy, Chemical force microscopy, Force titration, Self-assembled monolayers, Adhesion force
