Chemical Sciences Journal

Department of Chemistry, University of Costa Rica, San Jose, Costa Rica

Publications

• Research Article   
  Metallic Nanoparticles Modification of Epinephrine Biosensor Improves its Amperometric Response
  Author(s): Miriam Barquero Quiros*
  
  Effect of metallic deposited nanoparticles on screen printed carbon with tetrathiafulvalene incorporated ink, was tested by three electrochemical procedures. First one electrodeposition at constant potential and two cyclic voltammetry procedures that applied changes in step potential, scan rate and delay time. X-rays Fluorescence (XRF), Scanning Electronic and Atomic Force Microscopy (SEM) and (AFM) respectively were performed and metallic nanoparticles deposits were characterized through their SEM images. XRF provide metal percentage deposited by electrochemical procedures. AFM parameters let to know electrodes modi ied surface characteristics. Nanoparticles electrochemically deposited electrodes were modi ied with superoxide dismutase enzyme and tested on epinephrine biosensor amperometric calibration curves. Platinum Nanoparticles (PtNPs) modi ied electrodes.. Read More»
  

  Abstract PDF