Citation: Ding-Geng He, Xiao-Xiao He, Ke-Min Wang, Ying-Xiang Zhao. A facile route for shape-selective synthesis of silica nanostructures using poly-L-lysine as template[J]. Chinese Chemical Letters, ;2013, 24(2): 99-102. shu

A facile route for shape-selective synthesis of silica nanostructures using poly-L-lysine as template

1.
a State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China;
2.
b Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, College of Biology, Hunan University, Changsha 410082, China

Corresponding author: Xiao-Xiao He, Ke-Min Wang,
Received Date: 12 December 2012
Available Online: 9 January 2013
Fund Project: project supported by Hunan Provincial Natural Science Foundation and Hunan Provincial Science and Technology Plan of China (Nos. 10JJ7002, 2011FJ2001, 2012TT1003). (No. 20110161110016)

A facile method for the shape-selective synthesis of silica nanostructures using a reversemicroemulsion-mediated template (RMMT) technique is reported. In this method, positive poly-Llysine (PLL) is selected as template due to its configuration diversity. By adjusting pH and concentration, PLL demonstrates various secondary structures containing random coil, α-helix and β-sheet, which result in the formation of silica nanorods, silica nanospheres and silica nanotubes in the reversemicroemulsion system, respectively. Thus, the shape-selective synthesis of silica nanostructures might be achieved by using PLL as structural template in the reverse-microemulsion system.
- Poly-L-lysine,
- Reverse microemulsion,
- Silica nanostructure,
- TEOS
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沈阳化工大学材料科学与工程学院沈阳 110142