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Surface plasmon resonance enhancement of photoluminescence intensity and bioimaging application of gold nanorod@CdSe/ZnS quantum dots.
- Source :
-
Beilstein journal of nanotechnology [Beilstein J Nanotechnol] 2019 Jan 03; Vol. 10, pp. 22-31. Date of Electronic Publication: 2019 Jan 03 (Print Publication: 2019). - Publication Year :
- 2019
-
Abstract
- Biological applications of core/shell near-infrared quantum dots (QDs) have attracted broad interest due to their unique optical and chemical properties. Additionally, the use of multifunctional nanomaterials with near-infrared QDs and plasmonic functional nanoparticles are promising for applications in electronics, bioimaging, energy, and environmental-related studies. In this work, we experimentally demonstrate how to construct a multifunctional nanoparticle comprised of CdSe/ZnS QDs and gold nanorods (GNRs) where the GNRs were applied to enhance the photoluminescence (PL) of the CdSe/ZnS QDs. In particular, we have obtained the scattering PL spectrum of a single CdSe/ZnS QD and GNR@CdSe/ZnS nanoparticle and comparison results show that the CdSe/ZnS QDs have an apparent PL enhancement of four-times after binding with GNRs. In addition, in vitro experimental results show that the biostability of the GNR@CdSe/ZnS nanoparticles can be improved by using folic acid. A bioimaging study has also been performed where GNR@CdSe/ZnS nanoparticles were used as an optical process for MCF-7 breast cancer cells.
Details
- Language :
- English
- ISSN :
- 2190-4286
- Volume :
- 10
- Database :
- MEDLINE
- Journal :
- Beilstein journal of nanotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 30680276
- Full Text :
- https://doi.org/10.3762/bjnano.10.3