Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 21, Pages 18480-18488Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am505633g
Keywords
nanocomposite Ag@SiO2@Lu2O3:Gd/Yb/Er; enhancement upconversion luminescence; synthesis; core-shell structure; cell imaging
Funding
- National 973 Program [2010CB933901]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT 13078]
Ask authors/readers for more resources
Upconversion nanocrystals have many advantages over other fluorescent materials. However, their upconversion luminescence intensities are not desirable, limiting their applications for highly sensitive detection. Therefore, it is really important to enhance upconversion luminescent intensities of upconversion nanocrystals. In the present study, a novel Ag core and upconversion nanocrystal shell based nanocomposite Ag@SiO2@Lu2O3:Gd/Yb/Er for metal-enhanced upconversion luminescence was fabricated successfully, and its morphology, crystalline phase, composition, optical property, and cell imaging application were investigated. It was found that a maximum upconversion luminescence enhancement of 30-fold was obtained in comparison with the control without a silver core, and the nanocomposite exhibited bright upconversion luminescence when it was used for imaging with He La cells. This enhancement potentially increases the overall upconversion nanocrystal detectability, endowing the nanocomposite with a potential capability for highly sensitive biological, medical, and optical detection.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available