Date of download: 10/9/2017 Copyright © ASME. All rights reserved. From: Peptide- and Aptamer-Functionalized Nanovectors for Targeted Delivery of Therapeutics J Biomech Eng. 2009;131(7):074005-074005-20. doi:10.1115/1.3160763 Figure Legend: Light microscopy of frozen tissue sections from Lewis lung carcinoma tumors in mice demonstrates transfection with TAT-liposome-DNA complexes in vivo. Section from a nontreated tumor ((a) and (b)), from a tumor injected with liposome-DNA complexes without TAT ((c) and (d)), and from a tumor injected with TAT-liposome-DNA complexes ((e) and (f)). Bright field light microscopy after hematoxylin/eosin staining ((a), (c), and (e)), and epiflourescence microscopy of green fluorescent protein present as a result of transfection ((b), (d), and (f)). Reprinted with permission from Ref. . Copyright 2003 National Academy of Sciences, USA.