This document describes a protocol for size analysis of citrate stabilized gold nanoparticles of nominally 10 nm, 30 nm, and 60 nm sizes using electrospray differential mobility analysis (ES-DMA). Nanoparticles are centrifuged to remove excess citrate stabilizer and are re-suspended in ammonium acetate solution for ES-DMA analysis. A number average diameter is calculated from particle mobility measurements.
Citation: Nanocharacterization Laboratory website
Pub Weblink: http://ncl.cancer.gov/
Pub Type: Websites
Gold, nanoparticle, electrospray, differential mobility analysis