Boron and nitrogen co-doped carbon dots as a sensitive fluorescent probe for the detection of curcumin

Wei Bian*, Xuan Wang, Yakun Wang, Haifen Yang, Jialin Huang, Zongwei CAI, Martin M F CHOI

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

In this present study, a fluorescent probe was developed to detect curcumin, which is derived from the rhizomes of the turmeric. We used a simple and economical way to synthesize boron and nitrogen co-doped carbon dots (BNCDs) by microwave heating. The maximum emission wavelength of the BNCDs was 450 nm at an excitation wavelength of 360 nm. The as-prepared BNCDs were characterized by multiple analytical techniques such as transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and infrared spectroscopy. The synthesized carbon nanoparticles had an average particle diameter of 4.23 nm. The BNCDs exhibited high sensitivity to the detection of curcumin at ambient conditions. The changes of BNCDs fluorescent intensity show a good linear relationship with the curcumin concentrations in the range 0.2–12.5 μM. This proposed method has been successfully applied to detect the curcumin in urine samples with the recoveries of 96.5–105.5%.

Original languageEnglish
Pages (from-to)174-180
Number of pages7
JournalLuminescence
Volume33
Issue number1
DOIs
Publication statusPublished - Feb 2018

Scopus Subject Areas

  • Biophysics
  • Chemistry (miscellaneous)

User-Defined Keywords

  • boron and nitrogen co-doped carbon dots
  • curcumin
  • fluorescent probe

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