Effective functionalization of multiwalled carbon nanotube with amphiphilic poly(propyleneimine) dendrimer carrying silver nanoparticles for better dispersability and antimicrobial activity

► Functionalization of MWCNTs with amphiphilic poly(propyleneimine) dendrimer. ► Deposition of silver nanoparticles on MWCNTs-APPI. ► Dispersability of MWCNTs-APPI in aqueous and organic solvents without sonication. ► In vitro antimicrobial activity of MWCNTs-APPI and MWCNTs-APPI-AgNPs.