Journal ArticleDOI
Fluorescent Turn-on Aptasensor of Staphylococcus aureus Based on the FRET Between Green Carbon Quantum Dot and Gold Nanoparticle
TLDR
In this paper, a novel strategy based on fluorescence energy transfer (FRET) with green synthesis of carbon quantum dots (CQDs) and gold nanoparticles (GNPs) was proposed for the detection of one of the most pathogenic bacteria, Staphylococcus aureus.Abstract:
This paper describes a novel strategy based on fluorescence energy transfer (FRET) with green synthesis of carbon quantum dots (CQDs) and gold nanoparticles (GNPs) for the detection of one of the most pathogenic bacteria, Staphylococcus aureus (S. aureus). Novel green CQDs with blue color emission and high quantum yield were synthesized from olive leaves via the hydrothermal method. The fluorescence of the CQDs was quenched in the presence of aptamers and GNPs. After addition of specific bacteria, the aptamer–target complex was formed and the emission of the free CQDs returned. The linear range of this aptasensor was 108 to 101 CFU/mL with a detection limit as low as 10 CFU/mL for S. aureus. The proposed aptasensing approach has been successfully used for the assay of S. aureus in human serum, milk, and orange juice. Due to its simplicity and effectiveness, this system exhibits great promise as a practical aptasensor for the detection of other bacteria and biomolecules.read more
Citations
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Journal ArticleDOI
Upconversion nanoparticles-based FRET system for sensitive detection of Staphylococcus aureus.
TL;DR: In this article, a rapid, sensitive and specific aptasensor based on upconversion fluorescence resonance energy transfer (FRET) was developed for S. aureus detection in food.
Journal ArticleDOI
Recent advances in optical biosensors for specific detection of E. coli bacteria in food and water
TL;DR: In this article , the authors have shown that these optical nanobiosensors have high sensitivity and low detection limits for E. coli detection in smartphone, paper-based, and portable devices are also considered.
Journal ArticleDOI
Recent progress in the optical detection of pathogenic bacteria based on noble metal nanoparticles.
TL;DR: In this paper, a review summarizes the recent development in this field and summarizes the subjective views on present limitations and some appropriate advice for future research directions, as well as a detailed analysis of optical detection methods in three distinct aspects.
Journal ArticleDOI
Sensitive detection of S. Aureus using aptamer- and vancomycin -copper nanoclusters as dual recognition strategy.
TL;DR: In this article, the aptamer-and antibiotic-based dual detection sensor, combines copper nanoclusters (CuNCs) as an effective approach for the recognition and quantification of Staphylococcus aureus (S.aureus) as a pathogenic bacteria.
Journal ArticleDOI
A fluorescence biosensor for Salmonella typhimurium detection in food based on the nano-self-assembly of alendronic acid modified upconversion and gold nanoparticles
Min Chen,Leiqing Pan,Kang Tu +2 more
TL;DR: A simple and quick-response fluorescent biosensor for Salmonella typhimurium detection based on the recognition of an aptamer coupled with alendronic acid (ADA)@upconversion nanoparticles and gold nanoparticles (AuNPs) has been developed as discussed by the authors.
References
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TL;DR: The progress in the research and development of CQDs is reviewed with an emphasis on their synthesis, functionalization and technical applications along with some discussion on challenges and perspectives in this exciting and promising field.
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Simple one-step synthesis of highly luminescent carbon dots from orange juice: application as excellent bio-imaging agents
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TL;DR: Several types of in vitro selection processes, including nitrocellulose membrane filtration, affinity chromatography, magnetic bead, and capillary electrophoresis-based selection methods, are explained in detail.
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Staphylococcus aureus and Staphylococcal Food-Borne Disease: An Ongoing Challenge in Public Health
TL;DR: An overview of Staphylococcal food-borne disease, contributing factors, risk that it imposes to the consumers, current research gaps, and preventive measures are provided.