Abstract
A fluorescence assay for the sensitive determination of sodium dodecyl sulfate (SDS) based on polymer nanoparticles (PNPs) prepared by polyethyleneimine (PEI) and ascorbic acid (AA) is developed. SDS reacts with PNPs to form amide by aminolysis ester reaction, resulting in a strong fluorescence enhancement of PNPs. Notably, sodium dodecylbenzenesulphonate (SDBS) and sodium dodecyl sulfonate (SDSO) cannot interact with PNPs, so this way exhibits a special selectivity to SDS in the presence of SDBS and SDSO. Under the optimum conditions, this fluorescent nanosensor shows the linear range of SDS from 0.144 to 2.016μgmL−1 and the limit of detection is 0.051μgmL−1. Besides, on the basis of the reaction between SDS and proteins, the fluorescence of PNPs-SDS system quenches in the presence of biologically-relevant levels of myoglobin and thrombin, and displays good sensitivity and selectivity.
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.
