Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/ijms22094556
Keywords
multifunctional niosomes; quantum dots; iron oxide nanoparticles; glioma imaging
Funding
- Niedersachsisches Ministerium fur Wissenschaft und Kultur through the Quantum- and Nano-Metrology (QUANOMET) initiative [ZN3245, NP-1]
- German Research Foundation
- Open Access Publication Funds of Technische Universitat Braunschweig
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This study developed transferrin-decorated niosomes containing integrated magnetic iron oxide nanoparticles and quantum dots for efficient imaging of glioma, with support from magnetic and active targeting. Flow cytometry and in vitro imaging studies confirmed the potential application of this system in dual-targeted imaging of glioma.
The development of multifunctional nanoscale systems that can mediate efficient tumor targeting, together with high cellular internalization, is crucial for the diagnosis of glioma. The combination of imaging agents into one platform provides dual imaging and allows further surface modification with targeting ligands for specific glioma detection. Herein, transferrin (Tf)-decorated niosomes with integrated magnetic iron oxide nanoparticles (MIONs) and quantum dots (QDs) were formulated (PEGNIO/QDs/MIONs/Tf) for efficient imaging of glioma, supported by magnetic and active targeting. Transmission electron microscopy confirmed the complete co-encapsulation of MIONs and QDs in the niosomes. Flow cytometry analysis demonstrated enhanced cellular uptake of the niosomal formulation by glioma cells. In vitro imaging studies showed that PEGNIO/QDs/MIONs/Tf produces an obvious negative-contrast enhancement effect on glioma cells by magnetic resonance imaging (MRI) and also improved fluorescence intensity under fluorescence microscopy. This novel platform represents the first niosome-based system which combines magnetic nanoparticles and QDs, and has application potential in dual-targeted imaging of glioma.
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