Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 Oct 11;6:35186. doi: 10.1038/srep35186

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(A) UV-visible spectra of the aqueous solution of AuNPs (1) and aptamer-Au-Th bioconjugate (2). Inset (a) is a TEM image of AuNPs. (B) Nyquist plots of 10 mM [Fe(CN)₆]^3−/4− in 0.1 M KCl from 0.1 MHz to 0.1 Hz at ac amplitude of 5 mV under open-circuit potential conditions, obtained at the naked GC electrode (1), and the GC electrodes after the modification of carboxyl graphene (2), the activation of NHS/EDC (3), the immobilization of antibody (4), the recognition of Aβ oligomers (5), the blocking by BSA (6), and the binding of aptamer-Au-Th bioconjugate (7). Inset (b) is a SEM image of (2). Inset (c) is the magnified Nyquist plots for (1) and (2).