5.2.6 Au Nanoparticle Plasmon Sensor for Terpene Detection

Bin Chen, Chuanjun Liu, Manami Ota & Kenshi Hayashi
This paper describes a method to generate films composed of Au nanoparticles (AuNPs) assembled in a stepwise manner entirely from solution. AuNPs in the films were linked by two kinds of dithiol: 1,4benzenedithiol and 1,10-decanedithiol which have different molecular length and molecular electrical conductivity. Through comparing their LSPR spectra characters, we obtain that the film structures are different, and the difference is caused by structural characters of linkers. Layer-by-layer structured AuNPs films were used to...