Carbon dots based turn-on fluorescent probes for oxytetracycline hydrochloride sensing

An, Xuting; Zhuo, Shujuan; Zhang, Ping; Zhu, Changqing

doi:10.1039/c4ra16456c

Cited by 53 publications

(24 citation statements)

References 34 publications

(31 reference statements)

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“…Besides, it can be used to establish the sensors to detect metal ions (including Cu(II), Hg(II), Cr(VI), etc. ), dopamine, Cysteine, antibiotics (including tetracycline, oxytetracycline) and so on. Up to now, red, green and blue luminescent CDs have been synthesized using the solvothermal method, where o‐phenylenediamine, m‐phenylenediamine and p‐phenylenediamine are taken as the source of carbon …”

Section: Introductionmentioning

confidence: 86%

Carbon Dots Synthesized and its Applications in the Detection of Chlortetracycline and Water Based on the Aggregation‐Induced Emission

Hou

Yuan

et al. 2020

ChemistrySelect

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In recent years, carbon dots (CDs) have attracted widespread attention for their unique structure and excellent optical properties. In this study, orange‐red emission CDs were prepared using the one‐pot solvothermal carbonization method in ethanol medium. The fluorescence of the CDs was enhanced significantly in the presence of chlortetracycline (CTC), which was accompanied by the blue shift of emission wavelength in ethanol medium, and the enhancement of fluorescence intensity was proportional to CTC concentration in the range of 1.00×10−8 to 5.00×10−6 mol/L with the detection limit of 3.30 nmol/L. As revealed by the mechanism study, the enhanced fluorescence of the CDs by CTC was attributed to the aggregation‐induced emission (AIE). Besides, the AIE effect on the mixture of CDs and CTC was down‐regulated significantly in the presence of water, while the down‐regulated fluorescence intensity was proportional to water concentration in the range between 2.21×10−4 and 1.35×10−3 mol/L with the detection limit of 3.29×10−5 mol/L. Based on the above‐mentioned fact, a simple method for dual response to CTC and trace water was developed, and it exhibited excellent sensitivity and selectivity.

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Section: Introductionmentioning

confidence: 86%

Carbon Dots Synthesized and its Applications in the Detection of Chlortetracycline and Water Based on the Aggregation‐Induced Emission

Hou

Yuan

et al. 2020

ChemistrySelect

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“…In Israel, fish food in fish ponds is usually supplemented with one of the following antimicrobial compounds: oxytetracycline hydrochloride, sulfadiazine trimethoprim, and florfenicol. When transferring juvenile fish (weighing up to 100 g) between pools, the water is supplemented with oxytetracycline hydrochloride that is an analog of tetracycline (doxycycline) and is also used in humans ( An et al, 2015 ). Indeed, the MIC 90 of doxycycline in the fish isolates was the highest compared to the isolates from the other environmental reservoirs tested in the current study ( Table 1 ).…”

Section: Discussionmentioning

confidence: 99%

Antimicrobial Susceptibility of Environmental Non-O1/Non-O139 Vibrio cholerae Isolates

et al. 2018

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Vibrio cholerae serogroups O1 and O139 are the causative agents of cholera disease. There are more than 200 serogroups in this species that are termed V. cholerae non-O1/non-O139. Non-O1/non-O139 strains can cause gastroenteritis and cholera like diarrhea, wound infections, external otitis, and bacteraemia that may lead to mortality. Previous antimicrobial susceptibility studies were conducted mainly on O1/O139 serogroups and on clinical isolates. Our aim was to study and compare the antimicrobial susceptibilities of non-O1/non-O139 environmental strains isolated from chironomids, fish, and waterfowl. Significant differences were found in the antimicrobial susceptibilities between the environmental strains that were isolated from three different reservoir habitats. Significant increase in minimum inhibitory concentrations (MICs) of ampicillin and chloramphenicol was found in chironomid isolates from 2009 compared to those from 2005. V. cholerae isolates from different waterfowl species displayed the highest MIC values to chloramphenicol and trimethoprim-sulfamethoxazole (SXT), while chironomid isolates demonstrated the highest MIC values toward ampicillin. Isolates from fish and waterfowl showed high MIC values toward doxycycline. No significant differences were found between the MICs of isolates from the different waterfowl species. The percentage of antimicrobial resistance among V. cholerae isolates from waterfowl was the highest compared to the abundance of antimicrobial resistant isolates from chironomids or fish. The antimicrobial resistance genes can be carried on mobile genetic elements, thus, waterfowl may act as reservoirs for these elements and may spread them all over the globe. Data regarding treatment with antimicrobial agents toward V. cholerae non-O1/non-O139 serogroups is lacking and therefore further studies are needed.

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“…Table 1 shows the comparison of aptamer-AgNCs with other biosensors with regard to the biosensor performance for the detection of OTC. Limits of detection (LOD) and linear dynamic range of the biosensors were obtained from the literature (25)(26)(27)(28)(29)(30). The linear range of aptamer-AgNCs was 1-100 nM.…”

Section: Selectivitymentioning

confidence: 99%

A fluorescent aptasensor for sensitive analysis oxytetracycline based on silver nanoclusters

et al. 2016

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A fluorescent aptasensor for detection of oxytetracycline (OTC) was presented based on fluorescence quenching of DNA aptamer-templated silver nanoclusters (AgNCs). The specific DNA scaffolds with two different nucleotides fragments were used: one was enriched with a cytosine sequence fragment (C12) that could produce DNA-AgNCs via a chemical reduction method, and another was the OTC aptamer fragment that could selectively bind to the OTC antibiotic. Thus, the as-prepared AgNCs could exhibit quenched fluorescence after binding to the target OTC. The fluorescence ratio of the DNA-AgNCs was quenched in a linearly proportional manner to the concentration of the target in the range of 0.5 nM to 100 nM with a detection limit of 0.1 nM. This proposed nanobiosensor was demonstrated to be sensitive, selective, and simple, introducing a viable alternative for rapid determination of toxin OTC in honey and water samples. Copyright © 2016 John Wiley & Sons, Ltd.

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Carbon dots based turn-on fluorescent probes for oxytetracycline hydrochloride sensing

Abstract: A well-designed turn-on sensor has been constructed and used for the assay of oxytetracycline hydrochloride in real milk samples.

Cited by 53 publications

References 34 publications

Carbon Dots Synthesized and its Applications in the Detection of Chlortetracycline and Water Based on the Aggregation‐Induced Emission

Carbon Dots Synthesized and its Applications in the Detection of Chlortetracycline and Water Based on the Aggregation‐Induced Emission

Antimicrobial Susceptibility of Environmental Non-O1/Non-O139 Vibrio cholerae Isolates

A fluorescent aptasensor for sensitive analysis oxytetracycline based on silver nanoclusters

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