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Use of IR-to-visible upconversion fluorescent nanoparticles for tracking of siRNA delivery

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

IR-to-visible upcoversion fluorescent nanoparticles (UCNs) were developed to track in vitro delivery of small interference RNA (siRNA) and meanwhile efficiently transfect siRNA to the cells. NaYF4 upconversion nanoparticles co-doped with Yb/Tm (NaYF4:Yb,Tm) were conjugated with GL3 siRNA through electrostatic attraction at the weight ratio of 8:3. Then, siRNA- conjugated UCNs were incubated with the cultured human breast cancer MCF-7 cells. After 24h-incubation the successful cellular uptake of siRNA was visualized through the emitted blue fluorescence of siRNA- conjugated UCNs under confocal laser scanning microscopy. After 48h-incubation the efficiency of delivered GL3 siRNA in the inhibition of luciferase gene was ~60% that was determined by luciferase assay. This article provided initial insights into the effectiveness and suitability of NaYF4:Yb,Tm upconversion nanoparticles as an easily detectable and self-tracking delivery vector of siRNA.
Original languageEnglish
Title of host publicationProceedings of the 6th IASTED International Conference on Biomedical Engineering, BioMED 2008
Pages368-371
Publication statusPublished - 2008
Externally publishedYes
Event6th IASTED International Conference on Biomedical Engineering, BioMED 2008 - Innsbruck, Austria
Duration: 13 Feb 200815 Feb 2008

Publication series

NameProceedings of the 6th IASTED International Conference on Biomedical Engineering, BioMED 2008

Conference

Conference6th IASTED International Conference on Biomedical Engineering, BioMED 2008
PlaceAustria
CityInnsbruck
Period13/02/0815/02/08

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Research Keywords

  • Biomaterials
  • Imaging
  • Sirna delivery
  • Upconversion nanoparticles

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