Papers by Author: Juan Tang

Abstract: An electrochemiluminescence (ECL) sensor for highly sensitive detection of diphenhydramine was developed by employing tris (2,2-bipyridyl) ruthenium (II) as the detector. The ECL sensor was fabricated by immobilizing ECL reagent Ru (bpy)₃²⁺ on the poly-(3,4-ethylene dioxythiophene) and polystyrene sulfonate composite film (PEDOT-PSS) modified indium tin oxides (ITO) electrode by electrostatic attraction strategy. The ECL sensor showed an increased ECL intensity in the presence of diphenhydramine. The increased ECL intensity was direct proportion to the concentration of diphenhydramine over a range from 5.0 ×10^-4 to 5.0 ×10^-6 mol/L. The detection limit for the detection of diphenhydramine was 1.0 ×10^-6 mol/L. Fabrication of the ECL sensor by this method is simple and easy, and hence has potential applications in the field of ECL analysis and detection.

Abstract: Study of the electrochmeical biosensor has become a new interdisciplinary frontier between biological detection and material science due to their excellent prospects for interfacing biological recognition events with electronic signal transduction. Nanomaterials provided a significant platform for designing a new generation of bioelectronic devices exhibiting novel functions due to their high surface-to-volume ratio, good stability, small dimension effect, good compatibility and strong adsorption ability. In this paper, we review the development of electrochemical biosensors fabricated with various nanoscale materials, also highlight the analytical applications in terms of biochemistry.

Abstract: Nanomaterials include nanometal, nanooxide, carbon nanotube, carbon nanotube composite and other types of nanomaterials. They provide a significant way for the manufacture of sensors due to their small size, larger specific surface area, surface atomic slots insufficiency and more active sites. The rapid development of electrochemical sensor fabricated with nanomaterials is of significant value. In this article, we address some of the main advances in this field over the past few years, discussing the research progress of electrochemical sensor fabricated with nanomaterials and their application.