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Ultrathin boron nanosheets as an emerging two-dimensional photoluminescence material for bioimagingElectronic supplementary information (ESI) available. See DOI: 10.1039/c9nh00698b
- Source :
- Nanoscale Horizons; 2020, Vol. 5 Issue: 4 p705-713, 9p
- Publication Year :
- 2020
-
Abstract
- Two-dimensional (2D) metal-free sheets with atomic thickness have been highly considered as promising candidates for fluorescent probes, due to their intriguing characteristics. In this work, 2D ultrathin boron nanosheets (B NSs) with a surface defect nanolayer can be effectively prepared by modified liquid phase exfoliation. The as-prepared ultrathin B NSs show blue fluorescence characteristics even with a quantum yield efficiency of up to 10.6%. Such luminescent behavior originates from the quantum confinement effect and the existence of a surface defect layer. In light of the advantages of being environmentally friendly, having high photostability and good biocompatibility, for the first time we have shown that ultrathin B NSs can be used as an emerging fluorescent probe for application in cellular bioimaging. It is believed that this work will open new avenues for ultrathin B NSs in biomedical fields, and it will also inspire the development of other elemental 2D nanomaterials.
Details
- Language :
- English
- ISSN :
- 20556756 and 20556764
- Volume :
- 5
- Issue :
- 4
- Database :
- Supplemental Index
- Journal :
- Nanoscale Horizons
- Publication Type :
- Periodical
- Accession number :
- ejs52799244
- Full Text :
- https://doi.org/10.1039/c9nh00698b