期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 9, 期 1, 页码 396-403出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2009.J055
关键词
Layer-by-Layers Deposition; Nanocoating; Suspensions; Polyelectrolyte Multilayers; Washless Coating
类别
资金
- ITRS [01613-2005-08]
- NSF-NIRT [0210298]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0210298] Funding Source: National Science Foundation
A none-washing technique for layer-by-layer deposition of polyelectrolyte on colloids based on careful monitoring of colloid recharging is elaborated. It allows applying the technique for colloid systems in larger scale than laboratory, and avoiding the expensive washing procedure with centrifugation or filtration. The colloidal aggregation process depends on the cycle of sequential polycation/polyanion deposition and molecular weight of the polyelectrolytes used. The aggregation can be reversed by the addition of the next polyelectrolyte layer.
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