Xu et al, Anal. Methods, 2012, Advance Article
By Laura Ruvuna, Web Writer
Sensors don’t always require expensive equipment or complex attachment chemistries, and when possible a visual color change is enough. In this HOT article, Maotian Xu and colleagues from Shangqiu Normal University, China, have detected lysine effectively and cheaply using the colorimetric properties of gold nanoparticles during aggregation. The lysine content in food is important for growth and development, and using this assay it was detected in three different commercial food sources. In addition to the visual change, the UV-Vis spectra scaled linearly with lysine concentration. See more about this simple but sensitivity system below, it will be free to read for 2 weeks.
Colorimetric detection of lysine using gold nanoparticles aggregation
Yanli Zhou, Zhichong Yang and Maotian Xu
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25475A
