Back to Journals » International Journal of Nanomedicine » Volume 4

Near infrared planar tumor imaging and quantification using nanosized Alexa 750-labeled phospholipid micelles

Authors Aristarchos Papagiannaros, Amit Kale, Tatyana S Levchenko, Dmitry Mongayt, et al.

Published 19 May 2009 Volume 2009:4 Pages 123—131

DOI https://doi.org/10.2147/IJN.S5520

Review by Single-blind

Peer reviewer comments 6

Aristarchos Papagiannaros, Amit Kale, Tatyana S Levchenko, Dmitry Mongayt, William C Hartner, Vladimir P Torchilin

Department of Pharmaceutical Sciences and Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA, USA

Abstract: A novel highly biocompatible near infrared nanosized contrast agent was developed and used for rapid tumor detection and quantification using planar optical imaging and analysis. With this in mind, the near infrared fluorescent dye Alexa 750 was covalently attached to polyethylene glycol-phosphatidylethanolamine (PEG-PE) conjugate, and double labeled (with Alexa and rhodamine) PEG-PE micelles were injected into mice and observed using planar optical imaging. Pixel intensity data from the tumor site were normalized versus the autofluorescence of the animal at the same time point and normalized as signal to noise over the scattered light from the various tissues of the mice. The detected signal from the tumor was higher than the background noise allowing for rapid detection of the tumor. The tumor was clearly visible within one hour. Some signal was also detected from the abdomen of the mice. As determined by microscopy analysis, other organs of accumulation were the liver and kidney, which corresponded well to the data from the whole body imaging animal studies.

Keywords: nanotechnology, nanomedicine, cancer imaging agents, near infrared imaging, micelles

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF] 

 

Readers of this article also read:

Current perspectives in stem cell research for knee cartilage repair

Orth P, Rey-Rico A, Venkatesan JK, Madry H, Cucchiarini M

Stem Cells and Cloning: Advances and Applications 2014, 7:1-17

Published Date: 16 January 2014

Methacrylic-based nanogels for the pH-sensitive delivery of 5-Fluorouracil in the colon

Ashwanikumar N, Kumar NA, Nair SA, Kumar GS

International Journal of Nanomedicine 2012, 7:5769-5779

Published Date: 15 November 2012

Cross-linked acrylic hydrogel for the controlled delivery of hydrophobic drugs in cancer therapy

Deepa G, Thulasidasan AK, Anto RJ, Pillai JJ, Kumar GS

International Journal of Nanomedicine 2012, 7:4077-4088

Published Date: 27 July 2012

Topical diclofenac in the treatment of osteoarthritis of the knee

Niklas Schuelert, Fiona A Russell, Jason J McDougall

Orthopedic Research and Reviews 2011, 3:1-8

Published Date: 6 February 2011