These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: One-pot synthesis of nitrogen and sulfur co-doped carbon dots and its application for sensor and multicolor cellular imaging.
    Author: Chen J, Liu J, Li J, Xu L, Qiao Y.
    Journal: J Colloid Interface Sci; 2017 Jan 01; 485():167-174. PubMed ID: 27662029.
    Abstract:
    Nitrogen and sulfur co-doped carbon dots (N, S/C-dots) were prepared via one-pot hydrothermal treatment of citric acid and cystamine dihydrochloride. The as-prepared N, S/C-dots exhibited excellent excitation-wavelength-independent photoluminescence property and higher fluorescence quantum yield (QY) of 39.7% compared to C,N-dots (QY=2.6%) prepared using citric acid and 1,6-diaminohexane dihydrochloride as the precursor. The N, S/C-dots were well-dispersed in aqueous solution and showed good photoluminescence stabilities in different pH and temperature without any surface modification. Additionally, the fluorescence of N, S/C-dots can be quenched based on inner filter effect (IFE) upon the addition of Cr(VI) and showed good selectivity and sensitivity to Cr(VI). The detection for Cr(VI) exhibited a good linear correlation ranging from 1 to 80μM with a detection limit of 0.86μM. What's more, in comparison with other quantum dots and organic dyes, these N, S/C-dots were much more eco-friendly and can be used for multicolor bioimaging.
    [Abstract] [Full Text] [Related] [New Search]