Loading...
Please wait, while we are loading the content...
Similar Documents
Membrane techniques for the preparation of nanomaterials: nanotubes, nanowires and nanoparticles
| Content Provider | Semantic Scholar |
|---|---|
| Author | Charcosset, Catherine Bernard, Samuel Fiaty, K. Bechelany, Mikhael Cornu, David Miele, Philippe |
| Copyright Year | 2007 |
| Abstract | The large interest in nanostructures results from their numerous potential applications in various areas such as biomedical sciences, composite materials, electronic, optic, magnetism, energy storage, and electrochemistry. The present review deals with the preparation of nanomaterials including nanotubes, nanowires and nanoparticles on the basis of two processes using membranes as shaping tools: the membrane template method and the membrane contactor. This report is focused on a description of the type of membranes and of the synthesis techniques which are used to produce a large variety of nanomaterials in terms of morphology and chemical composition. In the membrane template method, a nanoporous membrane with oriented nanochannels is used as mould (hard template) and filled with the desired material or precursors. Subsequently, the membrane is removed to generate a panel of desired nanostructures (nanotubes or nanowires) with a size-replication effect. The spatial distribution of the ensuing nanoobjects is governed by the pore distribution in the starting membrane. In the second process, the membrane contactor, a first solution flows tangentially to the membrane surface and then mixes/reacts with a second solution coming from the membrane pores. Using this technique, polymeric nanoparticles, solid lipid nanoparticles, and nanocrystals have been prepared. Selected examples will be presented. _____________________________________________________________________________________________________________ |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.globalsciencebooks.info/Online/GSBOnline/images/0706/DBPBMB_1(1)/DBPBMB_1(1)15-23o.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |