Intensely red-emitting luminescent upconversion nanoparticles for deep-tissue multimodal bioimaging

Copyright © 2018 Elsevier B.V. All rights reserved..

Nowadays, in order to improve the diagnostic accuracy of the disease, more and more contrast agents have been applied in the clinical imaging modalities. A combination of nanotechnology with optical, computed X-ray tomography (CT), and magnetic resonance imaging (MRI) has great potential to improve disease diagnosis and therapy. Herein, we developed a novel multimodal contrast agent for deep-tissue bioimaging based on PEGylated Mn2+ doped NaLuF4:Yb/Er nanoparticles (PEG-UCNPs). The multimodal nanoprobes have revealed the intensely red upconversion luminescence emission for deep-tissue upconversion luminescence (UCL) imaging. Moreover, Owing to the high longitudinal relaxivity, the PEG-UCNPs can be used as T1-weighted MRI contrast agents. Additionally, with the high X-ray mass absorption coefficient of Lu3+, the novel nanoprobes are appropriate for CT imaging. With integration the high paramagnetic property, superior X-ray mass absorption coefficient and excellent upconversion luminescence in one system, the multimodal nanoprobes can provide a unique opportunity for MRI, CT and UCL imaging. More importantly, modification with PEG endows the novel nanoprobes with high biocompatibility, which would bring more opportunities for the biomedical applications in clinic.

Medienart:

E-Artikel

Erscheinungsjahr:

2018

Erschienen:

2018

Enthalten in:

Zur Gesamtaufnahme - volume:184

Enthalten in:

Talanta - 184(2018) vom: 01. Juli, Seite 461-467

Sprache:

Englisch

Beteiligte Personen:

Deng, Hongling [VerfasserIn]
Huang, Sa [VerfasserIn]
Xu, Chen [VerfasserIn]

Links:

Volltext

Themen:

3WJQ0SDW1A
Deep tissue
Journal Article
Lanthanoid Series Elements
Multimodal bioimaging
Nanoprobes
Polyethylene Glycols
Red upconversion luminescence

Anmerkungen:

Date Completed 24.09.2018

Date Revised 02.12.2018

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.talanta.2018.03.018

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM283221178