Patwardhan, S V and Mukherjee, N and Clarson, S J (2001) The use of poly-L-lysine to form novel silica morphologies and the role of polypeptides in biosilicification. Journal of Inorganic and Organometallic Polymers, 11 (3). pp. 193-198. ISSN 1053-0495Full text not available in this repository. (Request a copy from the Strathclyde author)
Silicification at neutral pH and under ambient conditions in vitro is of great interest due to its relationship with silicification in vivo as well as for the benign conditions of the process. As it is important to know the exact group(s) or a particular site in the macromolecules that are responsible for the silicification under these conditions in vivo, poly-L-lysine (PLL) was chosen for this investigation in vitro. Here we report the use of tetramethoxysilane (TMOS) as a silica precursor and the utilization of poly-L-lysine (PLL) for silicification at neutral pH and under ambient conditions. We describe (1) the use of PLL to precipitate silica, (2) the effect of mixing of macromolecules PLL and poly(allylamine hydrochloride) (PAH) to control morphologies of the product, and (3) the formation of novel silica morphologies.
|Keywords:||silica, biosilicification, poly-L-lysine (PLL), poly(allylamine hydrochloride) (PAH), diatoms, Chemical engineering, Materials Chemistry, Polymers and Plastics|
|Subjects:||Technology > Chemical engineering|
|Department:||Faculty of Engineering > Chemical and Process Engineering|
|Depositing user:||Pure Administrator|
|Date Deposited:||15 Jun 2011 12:05|
|Last modified:||04 May 2016 18:47|