In vivo NIRF and MR dual-modality imaging using glycol chitosan nanoparticles

Author

• Jaehong Key, Birck Nanotechnology Center, Purdue UniversityFollow
• Christy L. Cooper, Birck Nanotechnology Center, Purdue UniversityFollow
• Ah Young Kim, Korea Institute of Science & Technology
• Deepika Dhawan, Purdue UniversityFollow
• Deborah W. Knapp, Purdue UniversityFollow
• Kwangmeyung Kim, Korea Institute of Science & Technology
• Jae Hyung Park, Sungkyunkwan University
• Kuiwon Choi, Korea Institute of Science & Technology
• Ick Chan Kwon, Korea Institute of Science & Technology
• Kinam Park, Purdue UniversityFollow
• James F. Leary, Birck Nanotechnology Center, Purdue UniversityFollow

Abstract

One difficulty of diagnosing and treating cancer is that it is very challenging to detect cancers in the early stages before metastasis occurs. A variety of imaging modalities needs to be used from non-invasive, moderate resolution modalities, such as magnetic resonance imaging (MRI) to very high-resolution (e.g. fluorescence) imaging that can help guide surgeons during a surgical operation. While MRI can have relatively high resolution and deep penetration to visualize soft tissues, low sensitivity of MRI frequently requires tumor imaging agents to enhance the MRI contrast at the tumor site. At the other end of the resolution spectrum, near infrared fluorescence (NIRF) imaging has very high sensitivity but frequently cannot be utilized for initial human in vivo imaging due to its very limited penetration depth. To combine the advantages of each imaging modality we have constructed MRI and NIRF dual-modality nanoparticles using glycol chitosan, Cy5.5, and superparamagnetic iron oxide nanoparticles (SPIOs). We have demonstrated these advantages for dual-modality, in vivo tumor imaging in mice. Our studies suggest the potential use of NIRF and MR dual modality imaging for human cancer diagnosis. (c) 2012 Elsevier B.V. All rights reserved.

Keywords

Cancer; MRI; NIRF imaging; Chitosan nanoparticle; Dual-modality imaging; MULTIFUNCTIONAL NANOPARTICLES; CONTRAST AGENTS; CANCER; DELIVERY; ERA

DOI

10.1016/j.jconrel.2012.07.038

Citation

Journal of Controlled Release Volume 163, Issue 2, 28 October 2012, Pages 249–255

Date of this Version

10-28-2012

Recommended Citation

Key, Jaehong; Cooper, Christy L.; Kim, Ah Young; Dhawan, Deepika; Knapp, Deborah W.; Kim, Kwangmeyung; Park, Jae Hyung; Choi, Kuiwon; Kwon, Ick Chan; Park, Kinam; and Leary, James F., "In vivo NIRF and MR dual-modality imaging using glycol chitosan nanoparticles" (2012). Birck and NCN Publications. Paper 1111.
http://dx.doi.org/10.1016/j.jconrel.2012.07.038