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A practical fluorometric and colorimetric dual-mode sensing platform based on two-dimensional porous organic nanosheets for rapid determination of trifluralin.
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January 2025
School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, PR China.
Trifluralin, a widely used dinitroaniline herbicide, poses significant toxic risks, necessitating the development of rapid detection methods for food safety. In this study, we prepared ultrathin two-dimensional triphenylamine porous organic nanosheets (TPA-PONs) through a facile liquid-phase exfoliation process. The TPA-PONs, characterized by their exceptional fluorescence properties and nanoscale thickness (1.
View Article and Find Full Text PDFComplex transcription regulation of acidic chitinase suggests fine-tuning of digestive processes in Drosera binata.
Planta
January 2025
Institute of Plant Genetics and Biotechnology, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Akademicka 2, P. O. Box 39A, 950 07, Nitra, Slovak Republic.
DbChitI-3, Drosera binata's acidic chitinase, peaks at pH 2.5 from 15 °C to 30 °C. Gene expression is stimulated by polysaccharides and suppressed by monosaccharide digestion, implying a feedback loop in its transcriptional regulation.
View Article and Find Full Text PDFA neoteric smartphone-assisted colorimetric and fluorometric dual-mode probe based on anthraquinone derived Schiff base for wide-range pH and Cu/S determination in bioimaging.
Biosens Bioelectron
March 2025
School of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, PR China. Electronic address:
The fluctuation of ion content has an important effect on human health and ecological environment. Herein, a novel colorimetric and fluorescent dual mode probe (DMHB) has been designed via the imine bond bridging of anthraquinone derivative dye and salicyl hydrazide. The DMHB displays significance wide-range pH dependent spectral behavior (pKa 5.
View Article and Find Full Text PDFHerein, we present a strategy to access a novel class of pH-responsive, dual-state emissive (DSE), highly fluorescent pyrrole-based chromophores diformylation of dipyrroethenes (DPE) followed by condensation with various aniline derivatives. The DPE-based chromophores exhibit a large Stokes shift and maintain good fluorescence quantum yields. Remarkably, these chromophores demonstrate reversible colourimetric changes and a fluorometric 'on-off-on' switch in response to pH variations.
View Article and Find Full Text PDFDiagnosis of atrial fibrillation as the source of cryptogenic retrieved clots by a novel thrombin secretion assay.
Heart Rhythm
December 2024
Department of Neurology, The Chaim Sheba Medical Center, Ramat Gan, Israel; Department of Neurology and Neurosurgery, Faculty of Medicine and Health Sciences, Tel Aviv University, Tel Aviv, Israel; The TELEM Rubin Excellence in Biomedical Research Program, The Chaim Sheba Medical Center, Ramat Gan, Israel. Electronic address:
Article Synopsis
- The study focused on improving the diagnosis of clot sources in acute ischemic stroke, particularly distinguishing between atrial fibrillation (AF) and atherosclerosis (AS).
- A new column-based assay for thrombin secretion was developed, which proved to be faster and more informative than previous methods.
- The assay demonstrated high sensitivity and specificity, correctly identifying a significant percentage of patients with AF, thereby enhancing the understanding of cryptogenic strokes and their potential causes.
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