These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Solid-state electrochemiluminescence sensor through the electrodeposition of Ru(bpy)3(2+)/AuNPs/chitosan composite film onto electrode.
    Author: Yun W, Xu Y, Dong P, Ma X, He P, Fang Y.
    Journal: Anal Chim Acta; 2009 Mar 02; 635(1):58-62. PubMed ID: 19200479.
    Abstract:
    Tris(2,2'-bipyridyl)ruthenium(II) (Ru(bpy)(3)(2+)) has been successfully immobilized onto electrode through the electrodeposition of Ru(bpy)(3)(2+)/AuNPs/chitosan composite film. In the experiments, chitosan solution was first mixed with Au nanoparticles (AuNPs) and Ru(bpy)(3)(2+). Then, during chronopotentiometry experiments in this mixed solution, a porous 3D network structured film containing Ru(bpy)(3)(2+), AuNPs and chitosan has been electrodeposited onto cathode due to the deposition of chitosan when pH value is over its pK(a) (6.3). The applied current density is crucial to the film thickness and the amount of the entrapped Ru(bpy)(3)(2+). Additionally, these doping Ru(bpy)(3)(2+) in the composite film maintained their intrinsic electrochemical and electrochemiluminescence activities. Consequently, this Ru(bpy)(3)(2+)/AuNPs/chitosan modified electrode has been used in ECL to detect tripropylamine, and the detection limit was 5x10(-10) M.
    [Abstract] [Full Text] [Related] [New Search]