Key, Jaehong Cooper, Christy Kim, Ah Young Dhawan, Deepika Knapp, Deborah W. Kim, Kwangmeyung Park, Jae Hyung Choi, Kuiwon Kwon, Ick Chan Park, Kinam Leary, James F. 2024-01-20T13:34:51Z 2024-01-20T13:34:51Z 2021-09-04 2012-10-28 0168-3659 https://pubs.kist.re.kr/handle/201004/128757 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. English ELSEVIER SCIENCE BV MULTIFUNCTIONAL NANOPARTICLES CONTRAST AGENTS CANCER DELIVERY ERA In vivo NIRF and MR dual-modality imaging using glycol chitosan nanoparticles Article 10.1016/j.jconrel.2012.07.038 1 JOURNAL OF CONTROLLED RELEASE, v.163, no.2, pp.249 - 255 JOURNAL OF CONTROLLED RELEASE 163 2 249 255 scie scopus 000311579200019 2-s2.0-84867632481 Chemistry, Multidisciplinary Pharmacology & Pharmacy Chemistry Pharmacology & Pharmacy Article MULTIFUNCTIONAL NANOPARTICLES CONTRAST AGENTS CANCER DELIVERY ERA Cancer MRI NIRF imaging Chitosan nanoparticle Dual-modality imaging