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

. 2012 Aug;22(4):275–282. doi: 10.1089/nat.2012.0355

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

Copyright 2012, Mary Ann Liebert, Inc.

PMC Copyright notice

FIG. 1. — Live human breast adenocarcinoma (MCF7) cells treated with the AF546-labeled aptamer or 5′-biotinylated aptamer plus streptavidin-AF546. (A) merged fluorescence and differential interference contrast (DIC) microscopy; (B) shows only fluorescence microscopy of AF546-labeled aptamer cell membrane decoration within 5 minutes of aptamer addition. (C) and (D) live MCF7 cells treated with biotinylated aptamer followed by AF546-labeled streptavidin and demonstrating aptamer-dependent labeling of MCF7 cell membranes (C merged fluorescence and DIC; D, fluorescence only). Each image is a z-stack projection of ten 500-nm-thick optical sections.