Robust surface coating for a fast, facile fluorine-18 labeling of iron oxide nanoparticles for PET/MR dual-modality imaging
Abstract
Grafting a robust organic shell around inorganic nanoparticles can optimize their colloidal features to dramatically improve their physicochemical properties. Here, we have developed a polymer coating procedure for providing colloidal stability to the nanoparticles and, more importantly, for applying a fast, facile fluorine-18 labeling of iron oxide nanoparticles (IONPs) for positron emission tomography (PET)/magnetic resonance (MR) dual-modality imaging. The structure of the amphiphilic polymer is based on a backbone of polyacrylic acid, conjugated with multiple oleylamines to form a comb-like branched structure. The dense polymer shell provides high colloidal stability to the IONPs against harsh conditions such as high temperature, low pH value, and high ion strength. By incorporating a 1,4,7-triazacyclononane (NOTA) chelator to the comb-like amphiphilic polymer for the chelation of aluminum fluoride ions, we applied a one-step radiolabeling approach for a fast, facile radiofluorination of magnetic nanoparticles. The new strategy can significantly reduce the procedure time and radiation exposure. In conclusion, the PET/MR dual modality imaging was successfully achieved in living subjects by using 18F labeled magnetic nanoparticles.
- Authors:
-
- Huazhong Univ. of Science and Technology, Wuhan (China); Stanford Univ., Stanford, CA (United States)
- Stanford Univ., Stanford, CA (United States)
- Stanford Univ., Stanford, CA (United States); Affiliated Hospital of Qingdao Univ., Qingdao (China)
- Huazhong Univ. of Science and Technology, Wuhan (China)
- Publication Date:
- Research Org.:
- Huazhong Univ. of Science and Technology, Wuhan (China)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- OSTI Identifier:
- 1437936
- Grant/Contract Number:
- SC0008397
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nanoscale
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 47; Journal ID: ISSN 2040-3364
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY
Citation Formats
Sun, Ziyan, Cheng, Kai, Wu, Fengyu, Liu, Hongguang, Ma, Xiaowei, Su, Xinhui, Liu, Yang, Xia, Liming, and Cheng, Zhen. Robust surface coating for a fast, facile fluorine-18 labeling of iron oxide nanoparticles for PET/MR dual-modality imaging. United States: N. p., 2016.
Web. doi:10.1039/c6nr07298d.
Sun, Ziyan, Cheng, Kai, Wu, Fengyu, Liu, Hongguang, Ma, Xiaowei, Su, Xinhui, Liu, Yang, Xia, Liming, & Cheng, Zhen. Robust surface coating for a fast, facile fluorine-18 labeling of iron oxide nanoparticles for PET/MR dual-modality imaging. United States. https://doi.org/10.1039/c6nr07298d
Sun, Ziyan, Cheng, Kai, Wu, Fengyu, Liu, Hongguang, Ma, Xiaowei, Su, Xinhui, Liu, Yang, Xia, Liming, and Cheng, Zhen. Mon .
"Robust surface coating for a fast, facile fluorine-18 labeling of iron oxide nanoparticles for PET/MR dual-modality imaging". United States. https://doi.org/10.1039/c6nr07298d. https://www.osti.gov/servlets/purl/1437936.
@article{osti_1437936,
title = {Robust surface coating for a fast, facile fluorine-18 labeling of iron oxide nanoparticles for PET/MR dual-modality imaging},
author = {Sun, Ziyan and Cheng, Kai and Wu, Fengyu and Liu, Hongguang and Ma, Xiaowei and Su, Xinhui and Liu, Yang and Xia, Liming and Cheng, Zhen},
abstractNote = {Grafting a robust organic shell around inorganic nanoparticles can optimize their colloidal features to dramatically improve their physicochemical properties. Here, we have developed a polymer coating procedure for providing colloidal stability to the nanoparticles and, more importantly, for applying a fast, facile fluorine-18 labeling of iron oxide nanoparticles (IONPs) for positron emission tomography (PET)/magnetic resonance (MR) dual-modality imaging. The structure of the amphiphilic polymer is based on a backbone of polyacrylic acid, conjugated with multiple oleylamines to form a comb-like branched structure. The dense polymer shell provides high colloidal stability to the IONPs against harsh conditions such as high temperature, low pH value, and high ion strength. By incorporating a 1,4,7-triazacyclononane (NOTA) chelator to the comb-like amphiphilic polymer for the chelation of aluminum fluoride ions, we applied a one-step radiolabeling approach for a fast, facile radiofluorination of magnetic nanoparticles. The new strategy can significantly reduce the procedure time and radiation exposure. In conclusion, the PET/MR dual modality imaging was successfully achieved in living subjects by using 18F labeled magnetic nanoparticles.},
doi = {10.1039/c6nr07298d},
journal = {Nanoscale},
number = 47,
volume = 8,
place = {United States},
year = {Mon Oct 31 00:00:00 EDT 2016},
month = {Mon Oct 31 00:00:00 EDT 2016}
}
Web of Science
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