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 language | English |
|---|---|
| Title of host publication | Proceedings of the 6th IASTED International Conference on Biomedical Engineering, BioMED 2008 |
| Pages | 368-371 |
| Publication status | Published - 2008 |
| Externally published | Yes |
| Event | 6th IASTED International Conference on Biomedical Engineering, BioMED 2008 - Innsbruck, Austria Duration: 13 Feb 2008 → 15 Feb 2008 |
Publication series
| Name | Proceedings of the 6th IASTED International Conference on Biomedical Engineering, BioMED 2008 |
|---|
Conference
| Conference | 6th IASTED International Conference on Biomedical Engineering, BioMED 2008 |
|---|---|
| Place | Austria |
| City | Innsbruck |
| Period | 13/02/08 → 15/02/08 |
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)
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SDG 3 Good Health and Well-being
Research Keywords
- Biomaterials
- Imaging
- Sirna delivery
- Upconversion nanoparticles
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