Abstract
DNAzyme-templated CdTe quantum dots (DNAzyme-CdTe QDs) were synthesized through a facile one- step route and the obtained QDs were used to fabricate a novel ratiometric magnesium sensor. Crosslinking and surface modification process of QDs were not the necessary step in this synthesis. By catalyzing the DNAzyme sensing system, composed of DNAzyme- CdTe QDs and Cy5 labeled substrate strand, Mg2+ was detected. The fluorescent intensity ratio between CdTe QDs and Cy5 showed a good linear relationship with Mg2+concentration. The sensor displayed a wide range of linear response (0–20 nM), low detection limit (0.3 nM, (S/N = 3)), good reproducibility, stability and selectivity.
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.
