Fabrication and application of amperometric glucose biosensor based on a novel PtPd bimetallic nanoparticle decorated multi-walled carbon nanotube catalyst

► Novel PtPd bimetallic nanoparticles decorated on multi-walled carbon nanotubes (PtPd-MWCNTs) catalyst was prepared by a modified Watanabe method. ► The resulting biosensor exhibited a good response to glucose with a wide linear range (0.062-14.07 mM) and a low detection limit 0.031 mM. ► The biosensor also showed a short response time (within 5 s), and a high sensitivity (112 μA mM−1 cm−2). ► The biosensor exhibited high reproducibility, good storage stability and satisfactory anti-interference ability.