Biosynthesis of uniform fluorescent-stable telluride quantum dots in Escherichia coli and its detection of Fe3+ in water

A novel fluorescent biosensor was constructed to detect Pb2+. Multifunctional magnetic beads modified with substrate sequence and Pb2+-specific DNAzyme were employed as recognition probes. The fluorescence of carbon dots synthesized from watermelon rind (W-CDs) was quenched by hemin. Hemin/W-CDs were employed as fluorescent signals. The presence of Pb2+ could target-trigger the biosensor, and generated G-quadruplex which could restore the fluorescence of hemin/W-CDs. The fluorescence change of biosensor depended on Pb2+ concentration from 1 to 20 nM.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Biosynthesis of uniform fluorescent-stable telluride quantum dots in Escherichia coli and its detection of Fe3+ in water

Cited by 2 publications

References 43 publications

Intracellular redox potential-driven live-cell synthesis of CdSe quantum dots in Staphylococcus aureus

Intracellular redox potential-driven live-cell synthesis of CdSe quantum dots in Staphylococcus aureus

A novel fluorescent biosensor for detection of Pb2+ based on Pb2+-specific DNAzyme and carbon dots prepared from watermelon rind

Contact Info

Product

Resources

About