Bacillus subtilis DNA fluorescent sensors based on hybrid MoS2 nanosheets.
Son Hai NguyenVan-Nhat NguyenMai Thi TranPublished in: PloS one (2024)
Although sensor technology has advanced with better materials, biomarkers, and fabrication and detection methods, creating a rapid, accurate, and affordable bacterial detection platform is still a major challenge. In this study, we present a combination of hybrid-MoS2 nanosheets and an amine-customized probe to develop a fast, sensitive biosensor for Bacillus subtilis DNA detection. Based on fluorescence measurements, the biosensor exhibits a detection range of 23.6-130 aM, achieves a detection limit of 18.7 aM, and was stable over four weeks. In addition, the high selectivity over Escherichia coli and Vibrio proteolyticus DNAs of the proposed Bacillus subtilis sensors is demonstrated by the fluorescence quenching effect at 558 nm. This research not only presents a powerful tool for B. subtilis DNA detection but also significantly contributes to the advancement of hybrid 2D nanomaterial-based biosensors, offering substantial promise for diverse applications in biomedical research and environmental monitoring.
Keyphrases
- bacillus subtilis
- label free
- loop mediated isothermal amplification
- quantum dots
- escherichia coli
- real time pcr
- sensitive detection
- circulating tumor
- reduced graphene oxide
- cell free
- gold nanoparticles
- photodynamic therapy
- highly efficient
- low cost
- energy transfer
- risk assessment
- multidrug resistant
- cystic fibrosis
- pseudomonas aeruginosa
- transition metal
- big data
- staphylococcus aureus
- mass spectrometry
- klebsiella pneumoniae
- candida albicans