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Upconversion in Nanostructured Materials: From Optical Tuning to Biomedical Applications.
Tianying Sun1,2, Fujin Ai3,2, Guangyu Zhu3,2
1Department Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.
Chemistry, an Asian Journal
|December 30, 2017
Summary
Photon upconversion in nanostructured crystals offers enhanced optical tuning. These nanomaterials show promise for novel biomedical applications, though challenges remain for further development.
Area of Science:
- Materials Science
- Optics
- Nanotechnology
Background:
- Photon upconversion, a nonlinear luminescence process, has been studied in bulk materials for decades.
- Interest surged in 2000 with upconverted emission demonstrated in nanostructured crystals.
- Nanomaterials offer superior optical fine-tuning through compositional and structural engineering compared to bulk materials.
Purpose of the Study:
- To review recent advancements in upconversion materials via nanostructural design.
- To discuss emerging biomedical applications of nanostructured upconversion materials.
- To identify challenges hindering the progress of these nanomaterials.
Main Methods:
- Focus review of recent literature on nanostructured upconversion materials.
- Analysis of nanostructural design strategies for optical property tuning.
- Exploration of biomedical applications and their enabling nanotechnologies.
Main Results:
- Nanostructured materials enable flexible compositional integration and structural engineering for optical fine-tuning.
- High colloidal stability and surface functionalization of nanoparticles expand upconversion applications, particularly in life sciences.
- Emerging biomedical applications leverage the unique properties of nanostructured upconversion materials.
Conclusions:
- Nanostructural design significantly enhances photon upconversion properties.
- Nanoparticles offer versatile platforms for advanced upconversion applications in biology and medicine.
- Overcoming current challenges in nanomaterial development is crucial for realizing the full potential of upconversion processes.
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