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Subgram-Scale Synthesis of Biomass Waste-Derived Fluorescent Carbon Dots in Subcritical Water for Bioimaging, Sensing, and Solid-State Patterning
- Source :
- ACS Omega, Vol 3, Iss 10, Pp 13211-13218 (2018), ACS Omega
- Publication Year :
- 2018
- Publisher :
- American Chemical Society, 2018.
-
Abstract
- Fluorescent carbon dots (FCDs) have received considerable attention because of the great potential for a wide range of applications, from bioimaging to optoelectronic devices. In this work, we reported the synthesis of nitrogen-doped FCDs with an average size of 2 nm in a subcritical water apparatus by using biomass waste (i.e., expired milk) as the precursor. The obtained FCDs were highly dispersed in aqueous solution because of the presence of O-containing functional groups on their surfaces. Under the excitation of ultraviolet and blue light, the FCDs exhibited excitation wavelength-dependent fluorescence in the emission range of 400–550 nm. The FCDs could be easily taken up by HeLa cells without additional surface functionalization, serving as fluorescent nanoprobes for bioimaging. The applications of FCDs as sensing agents for the detection of Fe3+, solid-state fluorescent patterning, and transparent hybrid films were also performed, demonstrating their potential for solid-state fluorescent sensing, security labeling, and wearable optoelectronics.
- Subjects :
- Materials science
Aqueous solution
General Chemical Engineering
Solid-state
chemistry.chemical_element
Biomass
Nanotechnology
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
medicine.disease_cause
01 natural sciences
Fluorescence
Article
0104 chemical sciences
lcsh:Chemistry
chemistry
lcsh:QD1-999
medicine
Surface modification
0210 nano-technology
Carbon
Ultraviolet
Blue light
Subjects
Details
- Language :
- English
- ISSN :
- 24701343
- Volume :
- 3
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- ACS Omega
- Accession number :
- edsair.doi.dedup.....c04834db940bfd2d00eb5cff63f4cc91