• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Liu, Z.-H. (Liu, Z.-H..) [1] | Zhang, G.-F. (Zhang, G.-F..) [2] | Chen, Z. (Chen, Z..) [3] | Qiu, B. (Qiu, B..) [4] | Tang, D. (Tang, D..) [5]

Indexed by:

Scopus

Abstract:

We report on a new enzyme-free electrochemical immunoassay for the sensitive detection of the p53 protein (p53; a model analyte) by using a screen-printed carbon electrode modified with monoclonal mouse anti-human p53 antibody tagged with gold nanoparticles. First, nanogold microspheres doped with Prussian Blue were synthesized by a reverse micelle method. The resulting microspheres were used to label polyclonal anti-p53 antibody which then was applied in a sandwich immunoassay in pH 6.5 buffer solution using the Prussian Blue in the particles as the redox-active reporter. The electrochemical signal of the immunosensor is shown to increase with the concentration of the analyte (p53 protein) in the range from 0.5 to 80 U mL-1, with a detection limit of 0.1 U mL-1. No non-specific adsorption was observed. Coefficients of variation for intra-assay and inter-assay were below 8.5 % and 11.5 %, respectively. In addition, the method was applied to the analysis of 15 human serum samples, and a good relationship was found between the new immunoassay and the referenced electro-chemiluminescence method. [Figure not available: see fulltext.] © 2014 Springer-Verlag Wien.

Keyword:

Electrochemical immunoassay; Enzyme-free; p53 protein; Prussian blue-gold microspheres; Redox-active tag

Community:

  • [ 1 ] [Liu, Z.-H.]Department of Medical Oncology, Fujian Provincial Clinical College Affiliated with Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, China
  • [ 2 ] [Zhang, G.-F.]Department of Medical Oncology, Fujian Provincial Clinical College Affiliated with Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, China
  • [ 3 ] [Chen, Z.]Department of Medical Oncology, Fujian Provincial Clinical College Affiliated with Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, China
  • [ 4 ] [Qiu, B.]Department of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Tang, D.]Department of Chemistry, Fuzhou University, Fuzhou, 350108, China

Reprint 's Address:

  • [Liu, Z.-H.]Department of Medical Oncology, Fujian Provincial Clinical College Affiliated with Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, China

Show more details

Related Keywords:

Related Article:

Source :

Microchimica Acta

ISSN: 0026-3672

Year: 2014

Issue: 5-6

Volume: 181

Page: 581-588

3 . 7 4 1

JCR@2014

5 . 4 0 0

JCR@2023

ESI HC Threshold:268

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

Affiliated Colleges:

Online/Total:119/10011851
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1