PEGylated gold nanoprisms for photothermal therapy at low laser power density

This paper developed small-sized PEGylated gold nanoprisms (GNPs) to induce photothermal therapy at low laser power density. Upon irradiation of the laser at low power density (2 W cm(-2)), these PEGylated GNPs showed ultrahigh photothermal conversion efficacy (eta approximate to 70%) and produced enough heat to kill human breast cancer cells.