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Multilayered semiconducting polymer nanoparticles with enhanced NIR fluorescence for molecular imaging in cells, zebrafish and mice
Zhu H.1; Fang Y.2; Zhen X.1; Wei N.1; Gao Y.1; Luo K.Q.3; Xu C.1,4; Duan H.1; Ding D.2; Chen P.1; Pu K.1
2016
Source PublicationChemical Science
ISSN20416520
Volume7Issue:8Pages:5118
Abstract

Although organic semiconducting polymer nanoparticles (SPNs) have emerged as an important category of optical imaging agents, their application in molecular imaging is still in its infancy and faces many challenges. We herein report a straightforward one-pot synthetic approach to construct multilayered near-infrared (NIR) fluorescent SPNs with enhanced fluorescence and optimized biodistribution for in vivo molecular imaging. In addition to the SP core, the multilayered SPNs have a middle silica protection layer and an outer poly(ethylene glycol) (PEG) corona, which play crucial roles in enhancing the NIR fluorescence by up to ∼100 fold and reducing nonspecific interactions, respectively. Their proof-of-concept imaging applications are demonstrated in cells, zebrafish and living mice. The multilayered nanoarchitecture not only permits in vivo lymph node tracking with an ultrahigh signal-to-noise ratio (∼85), but also allows for more sensitive in vivo imaging of tumors with a fluorescence intensity ratio of tumor to liver that is ∼8-fold higher compared to that of the counterpart silica SPN. Thus, this study provides a simple yet effective nanoengineering approach to facilitate the application of SPNs in molecular imaging. © 2016 The Royal Society of Chemistry.

DOI10.1039/c6sc01251e
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000380893900039
The Source to ArticleScopus
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Cited Times [WOS]:82   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Health Sciences
Affiliation1.School of Chemical and Biomedical Engineering , Nanyang Technological University , Singapore 637457
2.State Key Laboratory of Medicinal Chemical Biology , Key Laboratory of Bioactive Materials , Ministry of Education , College of Life Sciences , Nankai University , China
3.Faculty of Health Sciences , University of Macau , Avenida da Universidade , Taipa , Macau , China
4.NTU-Northwestern Institute for Nanomedicine , Nanyang Technological University , 50 Nanyang Avenue , Singapore
Recommended Citation
GB/T 7714
Zhu H.,Fang Y.,Zhen X.,et al. Multilayered semiconducting polymer nanoparticles with enhanced NIR fluorescence for molecular imaging in cells, zebrafish and mice[J]. Chemical Science,2016,7(8):5118.
APA Zhu H..,Fang Y..,Zhen X..,Wei N..,Gao Y..,...&Pu K..(2016).Multilayered semiconducting polymer nanoparticles with enhanced NIR fluorescence for molecular imaging in cells, zebrafish and mice.Chemical Science,7(8),5118.
MLA Zhu H.,et al."Multilayered semiconducting polymer nanoparticles with enhanced NIR fluorescence for molecular imaging in cells, zebrafish and mice".Chemical Science 7.8(2016):5118.
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