Abstract
Herein, we demonstrate a high-accuracy H2O2 selective organic-inorganic 3D-heterointerface based on catalytically in-situ reduced Prussian-blue nanoparticles (PBNPs), Poly (3,4-ethylene dioxythiophene):poly (styrene sulfonic acid) (PEDOT:PSS) and water-soluble Silkworm protein (SWp). PBNPs were immobilized on an indium tin oxide-coated glass (ITO) electrode through the electrochemical polymerization process of PEDOT:PSS and the yielding intertwining composite was templated by the use of SWp, simultaneously. Since PSS and SWp act as poly-anionic and poly-cationic charge compensating elements, the sensing system's potential cycling and amperometric response stability have been significantly enhanced thanks to the arising physical blockage effect. Constructed sensing system showed a substantially high sensitivity (1031.7 μA mM−1 cm−2) and a low limit of detection value (LOD, 0.29 μM) between 1 and 130 μM H2O2. Eliminating the possible signal disruptions by common anion and cations in tap water, the (PEDOT:PSS:PB):SWp interface successfully selected H2O2 between the concentration of 10–40 μM with high recovery and relatively low RSDs oscillating between 94.2-110.9% and 2.9–5.1%, respectively. It is thought that the proposed heterointerface can be used in the field of sensor, biosensor and fuel cell systems run by H2O2 assay based on 3D scaffold-templated conductive polymer-PBNPs network.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.