Easy Synthesis and Imaging Applications of Cross-Linked Green Fluorescent Hollow Carbon Nanoparticles

We propose an ingenious method for synthesizing cross-linked hollow fluorescent carbon nanoparticles (HFCNs) with green emission by simply mixing acetic acid, water, and diphosphorus pentoxide. This is an automatic method without external heat treatment to rapidly produce large quantities of HFCNs,...

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Bibliographic Details
Published in:ACS nano 2012-01, Vol.6 (1), p.400-409
Main Authors: Fang, Youxing, Guo, Shaojun, Li, Dan, Zhu, Chengzhou, Ren, Wen, Dong, Shaojun, Wang, Erkang
Format: Article
Language:English
Subjects:
Automation
Cadmium tellurides
Carbon
Cell Tracking - methods
Contrast Media
Cross-Linking Reagents - chemistry
Crosslinking
Fluorescence
Fluorescent Dyes
Green aspects
Microscopy - methods
Microscopy, Fluorescence - methods
Molecular Imaging - methods
Nanoparticles
Nanostructure
Nanotubes, Carbon - chemistry
Toxicity
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Summary:We propose an ingenious method for synthesizing cross-linked hollow fluorescent carbon nanoparticles (HFCNs) with green emission by simply mixing acetic acid, water, and diphosphorus pentoxide. This is an automatic method without external heat treatment to rapidly produce large quantities of HFCNs, in contrast to other syntheses of fluorescent carbon nanoparticles that required high temperature, complicated operations, or long reaction times. Characterizations of HFCNs through high-resolution transmission electron microscopy, infrared/Raman spectroscopy, and X-ray diffraction indicate that abundant small oxygenous graphite domains existed and endowed the HFCNs with fluorescent properties. After simple post-treatments, the cross-linked HFCNs can be used for cell-imaging applications. Compared with traditional dyes and CdTe quantum dots, HFCNs are the superior fluorescent bioimaging agent according to their low toxicity, stability, and resistance to photobleaching. The HFCNs were also applied to watermark ink and fluorescent powder, showing their promising potentials for further wide usage.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn2046373