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Staphylococcus aureus was listed as the 2nd common food-borne pathogens, resulting in diseases such as pneumonia, pseudomembranous colitis, pericarditis and even sepsis. A rapid, simple and sensitive detection method is required to monitor food in cases of contamination by S. aureus. Hence, a novel immunochromatographic test strip (ICTS), based on the two-component reaction (i.e. digoxigenin and anti-digoxigenin,...
Our paper presents a new development of quantum dot (QD)-based semi-automatic system for the detection of pathogenic bacteria in drinking water. It combined QDs imaging technique (with advantages of higher fluorescence intensity and longer fluorescent signal, multiple color choices, tolerant to reaction environment, et al.) with a fast filtration system, and enabled the semi-automatic detection process...
Quantum dots (QDs) nanoparticles are increasingly being used for biomedical applications. Most QDs consist of heavy metal which may be potentially toxic to biological organisms. In this study, CdTe/ZnS core/shell QDs were evaluated for their harmful effects on Escherichia coli, which served as model for potential impact to microorganisms and microbial cell toxicity. Organic soluble CdTe and CdTe/ZnS...
We report in this article the microwave synthesis of relatively monodisperse, highly crystalline CdSe quantum dots (QDs) overcoated with Cd0.5Zn0.5S/ZnS multishells. The as-prepared QDs exhibited narrow photoluminescence bandwidth as the consequence of homogeneous size distribution and uniform crystallinity, which was confirmed by transmission electron microscopy. A high photoluminescence quantum...
Quantum dots (QDs) have received considerable attention due to their advantages that are suitable for biological studies, especially for multiplexed staining assays and immunological assays. Here we report an application of QDs for the detection of breast cancer cells. Breast cancer is the second most common type of cancer and the fifth most common cause of cancer deaths in the US and the world. The...
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