期刊
JOURNAL OF BIOMEDICAL NANOTECHNOLOGY
卷 16, 期 4, 页码 548-552出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jbn.2020.2909
关键词
Two-Dimensional Layered Material; Black Phosphorus; Tween 20; Liquid Exfoliation
资金
- NSF of China [61871180, 61901168]
- Hunan Provincial Innovation Foundation for Postgraduate [CX2018B745]
- Natural Science Foundation of Hunan Province of China [2020JJ5127, 2019JJ50122]
As an emerging two-dimensional layered material, black phosphorus nanosheets show unparalleled optical and electronic properties. Although black phosphorus nanosheets have attracted much attention in the photoelectric field, their appli-cations in biomedical field were still limited due to their poor biocompatibility of current synthesis strategies. Herein, we propose a novel synthetic strategy for black phosphorus nanosheets that rely on Tween 20-assisted liquid exfoliation and post-processing in deoxygenated water. Microscopic and spectroscopic analysis suggested that the produced black phos-phorus nanosheets dispersions exhibited good stability and higher yield compared with other currently prepared methods. Because of their ultrahigh exfoliation efficiency, the black phosphorus flakes present few-layer and even monolayer, which are thinner than the most dispersions of black phosphorus. Thus, this method enables mass-production of high-quality few-layer black phosphorus with high biocompatibility, and has the potential to be directly used in the biological field.
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