We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Ratiometric Fluorescence Probe Based on Deep-Red Emissive CdTe Quantum Dots and Eu 3+ Hybrid for Oxytetracycline Detection.
- Authors
Tan, Siyi; Wang, Qin; Tan, Qiuxia; Zhao, Shaojing; Huang, Lei; Wang, Benhua; Song, Xiangzhi; Lan, Minhuan
- Abstract
Oxytetracycline (OTC) is an environmental pollutant caused by the abuse of antibiotics, and its content in water is closely related to human health. Therefore, the development of a simple, rapid, and accurate method to detect OTC has become desirable. In this work, a ratiometric fluorescence probe based on deep red emissive CdTe quantum dots (QDs) modified by mercaptopropionic acid and Eu3+ is developed to accurately and rapidly detect OTC in water. After the addition of OTC, the photoluminescence intensity of CdTe QDs at 698 nm remains almost unchanged, while the peak at 617 nm intensifies within 40 s due to the coordination of Eu3+ with OTC. An excellent linear relationship is present between the photoluminescence intensity ratio of I617/I698 and the concentration of OTC. The limit of detection of the probe towards OCT is 5.4 nM. In addition, the probe shows good selectivity and anti-interference ability for OTC in the presence of other antibiotics, including other antibiotics, ions, and amino acids. The probe has been successfully applied to detect OTC in actual samples, demonstrating its potential for environmental application.
- Subjects
QUANTUM dots; OXYTETRACYCLINE; POLLUTANTS; FLUORESCENCE; PHOTOLUMINESCENCE; ANTIBIOTICS
- Publication
Chemosensors, 2023, Vol 11, Issue 1, p62
- ISSN
2227-9040
- Publication type
Article
- DOI
10.3390/chemosensors11010062