Layer-by-layer self-assembly of carbon nanotubes with polyelectrolytes for biomedical application

The layer-by-layer (LbL) self-assembly of carbon nanotube (CNT)/polyelectrolyte has been widely investigated for various applications. In this study, multi-walled carbon nanotube (MWCNT) was LbL assembled with three positively charged polyelectrolytes, which was PEI, chitosan and PDDA respectively. In order to investigate its potential application in biomedical field, cell biocompatibility was examined by examining the viability and morphologies of NIH-3T3 fibroblasts cultured on the glass coated with the MWCNT/polyelectrolyte assembly multi-layers. © (2013) Trans Tech Publications, Switzerland.