Synthesis of nitrogen-doped graphene quantum dots (N-GQDs) from marigold for detection of Fe3+ ion and bioimaging

Ying-Peng Zhang; Ji-Mei Ma; Yun-Shang Yang; Jia-Xi Ru; Xiao-Yu Liu; Ying Ma; Hui-Chen Guo

doi:10.1016/j.saa.2019.03.044

Synthesis of nitrogen-doped graphene quantum dots (N-GQDs) from marigold for detection of Fe³⁺ ion and bioimaging

Spectrochim Acta A Mol Biomol Spectrosc. 2019 Jun 15:217:60-67. doi: 10.1016/j.saa.2019.03.044. Epub 2019 Mar 19.

Authors

Ying-Peng Zhang¹, Ji-Mei Ma², Yun-Shang Yang³, Jia-Xi Ru⁴, Xiao-Yu Liu², Ying Ma², Hui-Chen Guo⁴

Affiliations

¹ School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China. Electronic address: [email protected].
² School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
³ School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China. Electronic address: [email protected].
⁴ State Key Laboratory of Veterinary Etiological Biology and Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China.

PMID: 30927572
DOI: 10.1016/j.saa.2019.03.044

Abstract

Graphene quantum dots (GQDs) are synthesized by the method of high-temperature pyrolysis from marigold granules and subsequently nitrogen-doped graphene quantum dots (N-GQDs) are synthesized from ethylenediamine by hydrothermal treatment, which shows a strong blue emission with 7.84% quantum yield (QY). This will be used in detection of Fe³⁺ in water environments and the field of bioimaging.

Keywords: Bioimaging; Fe(3+); Nitrogen-doped graphene quantum dots.

MeSH terms

Biosensing Techniques / methods*
Graphite / chemistry*
Hydrogen-Ion Concentration
Iron / analysis*
Molecular Imaging / methods*
Nitrogen / chemistry*
Quantum Dots*
Spectrometry, Fluorescence

Substances

Graphite
Iron
Nitrogen