A variety of new coumarin derivatives containing C-4 bridged 2,6-dicyanoanilines (4a-4d) were synthesized via multicomponent one pot approach. These novel sensors were characterized by spectral analysis and a series of pH sensing fluorescence studies were performed, the results indicating that the sensors are highly selective and more effective at various pH. The fluorescence colour changes at different pH could be directly detected by naked eyes.
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http://dx.doi.org/10.1007/s10895-017-2098-y | DOI Listing |
Sci Rep
January 2025
Department of Plant Pathology, Faculty of Agrisciences, Stellenbosch University, Matieland, 7602, South Africa.
The soilborne pathogen Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4) is currently devastating banana production worldwide.
View Article and Find Full Text PDFJ Nanobiotechnology
January 2025
Department of Laboratory Medicine Center, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou Medical University, Qingyuan, Guangdong, China.
Monitoring wound infection and providing appropriate treatment are crucial for achieving favorable outcomes. However, the time-consuming nature of laboratory culture tests may delay timely intervention. To tackle this challenge, a simple yet effective HDG hydrogel, composed of hydrogen peroxide (H₂O₂), dopamine, and GelMA polymer, is developed for the ultrafast detection and treatment of Staphylococcus aureus (SA) infections.
View Article and Find Full Text PDFJ Fluoresc
January 2025
Department of Basic Sciences, Sari University of Agricultural Sciences and Natural Resources, P.O.Box 578, Sari, Iran.
Among the various cations, the Fe ion is one of the most critical transition metal ions in living cells for many cellular functions and enzymatic activities. The decrease or overloading of Fe can lead to different disruptions in humans. Also, Fe, highly toxic, is very common in all industrial wastewater.
View Article and Find Full Text PDFACS Sens
January 2025
School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China.
Visual, sensitive, and selective detection of carcinogenic substances is highly desired in portable health protection and practical medicine production. However, achieving this goal presents significant challenges with the traditional single-mode sensors reported so far, as they have limited sensing mechanisms and provide only a single output signal. Here, we report an effective optical and electrical dual-mode sensor for the visual, sensitive, and selective detection of -nitrosodiethylamine (NDEA), a typical volatile carcinogenic substance, leveraging the synergy of ionic liquid-doped liquid crystals (IL-LC).
View Article and Find Full Text PDFRes Vet Sci
February 2025
Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand. Electronic address:
Staphylococcus pseudintermedius (S. pseudintermedius) is a significant cause of pyoderma, soft tissue, urinary tract, and ear infections in cats and dogs. Bacterial culture and biochemical phenotypic assays are the gold standards for clinical diagnosis of bacteria but molecular methods have now been developed to identify and differentiate S.
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