Research Highlights

Size Differentiation and Absolute Quantification of Gold Nanoparticles via Single Particle Detection with a Laboratory-Built High-Sensitivity Flow Cytometer

Publish Date:09.October 2010     Visted: Times       
 
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 132(35), pp 12176-12178, Publication Date: SEP 8 2010 
 
Author: Shaobin Zhu, Lingling Yang, Yao Long, Min Gao, Tianxun Huang, Wei Hang and Xiaomei Yan*
 
Abstract:
    Employing single nanoparticle detection with a laboratory-built high-sensitivity flow cytometer, we developed a simple and versatile platform that is capable of detecting the surface plasmon resonance scattering of gold nanoparticles (GNPs) as small as 24 nm, differentiating GNPs of different sizes, and providing accurate quantification of GNPs. Low-concentration samples (fM to pM) in small volumes (mu L) can be measured in minutes with an analysis rate of up to 100-200 GNPs per second. Among these features, absolute quantification provides a distinct advantage because it does not require standard samples.