A dual-signal fluorescent sensor based on MoS2 and CdTe quantum dots for tetracycline detection in milk

Liang, Nini; Hu, Xuetao; Li, Wenting; Wang, Yueying; Guo, Ziang; Huang, Xiaowei; Li, Zhihua; Zhang, Xinai; Zhang, Jiukai; Xiao, Jianbo; Zhang, Xiaobo; Shi, Jiyong

doi:10.1016/j.foodchem.2022.132076

Cited by 57 publications

(23 citation statements)

References 41 publications

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“…Using MoS 2 QDs (blue fluorescence) and CdTe QDs (yellow fluorescence) as modification materials, Liang et al developed a dual-signal fluorescence sensor for the detection of tetracycline in milk (Figure 12E). [207] The detection result of dual signal sensor was more accurate and reliable.…”

Section: Fluorescent Biosensorsmentioning

confidence: 94%

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Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS₂

Gao

Wang

et al. 2022

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The disulfide compounds of molybdenum (MoS 2 ) are layered van der Waals materials that exhibit a rich array of polymorphic structures. MoS 2 can be roughly divided into semiconductive phase and metallic phase according to the difference in electron filling state of the 4d orbital of Mo atom. The two phases show completely different properties, leading to their diverse applications in biosensors. But to some extent, they compensate for each other. This review first introduces the relationship between phase state and the chemical/physical structures and properties of MoS 2 . Furthermore, the synthetic methods are summarized and the preparation strategies for metastable phases are highlighted. In addition, examples of electronic and chemical property designs of MoS 2 by means of doping and surface modification are outlined. Finally, studies on biosensors based on MoS 2 in recent years are presented and classified, and the roles of MoS 2 with different phases are highlighted. This review offers references for the selection of materials to construct different types of biosensors based on MoS 2 , and provides inspiration for sensing performance enhancement.

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Section: Fluorescent Biosensorsmentioning

confidence: 94%

mentioning

confidence: 99%

Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS₂

Gao

Wang

et al. 2022

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“…We used MoS 2 QDs and CdTe QDs to construct a fluorescent sensor with dual signals at 433 nm and 573 nm. MoS 2 / CdTe-based sensors show a lower fluorescence intensity as tetracycline concentration is increased, and 573 nm is quenched more apparent than 433 nm as tetracycline concentrations are increased [24].…”

Section: Overview Of Qds-based Biosensorsmentioning

confidence: 97%

Recent Advances in Quantum Dots-Based Biosensors

Safari¹

2023

Quantum Dots - Recent Advances, New Perspectives and Contemporary Applications

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Biosensors can be developed using quantum dots (QDs). An inorganic nucleus with organic molecules attached to its surface is referred to as a QD, and they are a type of new fluorescent nanomaterial. QDs possess unique excellent optical properties and chemical properties, including broad excitation spectra, adjustable particle sizes, confined emission spectra, emission of multiple fluorescence colors, superior signal brightness, and extended fluorescence lifetime. QDs have abundant functional groups, which make it easy to form hybrid nanomaterials that perform analytically well. With functionalized sensing systems, we can detect metal ions, biomarkers, and antibiotics sensitively and selectively through the hybridization of QDs with nanomaterials. In this chapter, we first introduce the research trends in the application of QDs and then discuss their surface modification for biological applications.

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“…At present, a number of detection techniques have been developed for TET detection to ensure environment and food safety such as liquid chromatography–mass spectrometry (LC-MS), enzyme-linked immunosorbent assay (ELIMA), and capillary electrophoresis (GE) . In addition, biosensors such as fluorescence, , surface-enhanced Raman, and electrochemical biosensors have attracted much attention and become important methods for monitoring hazardous substances in the last decade. Among these biosensors, electrochemical sensors have aroused burgeoning interest in detection because of advantages such as simple operation, rapid response, high sensitivity, and excellent selectivity. , …”

Section: Introductionmentioning

confidence: 99%

Ratiometric Sensing for Ultratrace Tetracycline Using Electrochemically Active Metal–Organic Frameworks as Response Signals

Liang

Zhang

et al. 2023

J. Agric. Food Chem.

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single-stranded DNA (ssDNA), and complex system (Apt@NH 2 -UiO-66) of aptamer (Apt) and NH 2 -UiO-66 were sequentially immobilized on the electrode. With the addition of TET, Apt was hybridized with TET and Apt@NH 2 -UiO-66 was detached from the electrode, resulting in an increase in the current at −1.06 V and a decrease in the current at 0.724 V. Through this strategy, the sensor achieved a wide linear range (0.1−10000 nM) and a low limit of detection (0.009792 nM) for TET. Moreover, the ratiometric sensor exhibited better sensitivity, reproducibility, and stability than a singlesignal sensor. Furthermore, the constructed sensor was successfully applied to detect TET in milk samples, suggesting excellent application prospects.

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A dual-signal fluorescent sensor based on MoS2 and CdTe quantum dots for tetracycline detection in milk

Cited by 57 publications

References 41 publications

Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS₂

Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS₂

Recent Advances in Quantum Dots-Based Biosensors

Ratiometric Sensing for Ultratrace Tetracycline Using Electrochemically Active Metal–Organic Frameworks as Response Signals

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A dual-signal fluorescent sensor based on MoS2 and CdTe quantum dots for tetracycline detection in milk

Cited by 57 publications

References 41 publications

Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS2

Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS2

Recent Advances in Quantum Dots-Based Biosensors

Ratiometric Sensing for Ultratrace Tetracycline Using Electrochemically Active Metal–Organic Frameworks as Response Signals

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Product

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Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS₂

Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS₂