Abstract
A simple, economical hydrothermal strategy for synthesizing nitrogen-doped carbon quantum dots (N-CQDs) was developed using Ginko leaves as a carbon source. These N-CQDs have strong blue fluorescence, excitation-relevant emissions, high monodispersity, good stability, good water solubility, and a 22.8% fluorescence quantum yield. They average 3 nm in size, and have maximum excitation and emission wavelengths of 350 and 436 nm, respectively. They are used as an effective fluorescent sensing platform for the label-free sensitive detection of salazosulfapyridine (SASP) due to the strong quenching effect of SASP. When SASP concentration is 0.1–80 μmol/L, there is a good linear relationship with a detection limit of 40 nmol/L. This method was successfully applied to detect SASP in mouse plasma. The results show that the SASP recovery range was 96%–101%. RSDs ranged from 2.6% to 3.1%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
