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Colorimetric and fluorescent probe assisted by smartphone app for monitoring fish freshness.
Food Chem
January 2025
College of Food Science and Engineering, College of Chemistry and Materials Engineering, Institute of Ocean, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Bohai University, Jinzhou 121013, PR China. Electronic address:
In this study, a novel "OFF-ON" fluorescent probe MPZ ((E)-5-((10-ethyl-2-methoxy-10H-phenothiazin-3-yl)methylene)thiazolidine-2,4-dione) based on phenothiazine is synthesized, which can rapidly (7 s) detect biogenic amines (BAs) through deprotonation, utilizing both colorimetric and fluorescent dual channels. An app for visual portable detection of fish freshness, named "Visual Evaluation", is independently developed. This app integrates several functions, including image capture, editable scanning of red, green, and blue (RGB) values, data analysis fitting, data storage, and verification.
View Article and Find Full Text PDFMOF scaffold for anchoring platinum-nickel nanoparticles with enhanced oxidase-like activity to improve lateral flow immunoassay diagnosis.
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School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China.
Noble metal nanoparticles have attracted tremendous attention as the promising signal reporters for catalytic-colorimetric lateral flow immunoassay (LFIA). However, it remains great challenges for improving their stability and catalytic activity. Herein, first, a kind of porphyrinic based metal-organic framework (MOF) was used as a carrier for loading platinum (Pt) nanoparticles to avoid its aggregation.
View Article and Find Full Text PDFEnhanced antimycotic activity of biomodified copper oxide nanoparticles from indigenous state flowers of Jharkhand: an and approach.
Nat Prod Res
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Department of Bioengineering and Biotechnology, Birla Institute of Technology, Ranchi, Jharkhand, India.
Current study investigates the medicinal applications of (Palash), the state flower of Jharkhand, India, focusing on synthesising biomodified copper oxide nanoparticles (CuO-NPs) and its antifungal properties. Flavonoid content in the flower extract was quantified by aluminium chloride colorimetric analysis. CuO-NPs were synthesised via co-precipitation method and then modified with methanolic flower extract.
View Article and Find Full Text PDFPhytochemical and Biological Investigations of Crude Extracts of .
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Department of Analytical Chemistry, Faculty of Pharmacy, Afyonkarahisar Health Sciences University, TR-03100 Afyonkarahisar, Turkey.
: L. is a genus of the Fabaceae family, encompassing over 3000 species globally, with 380 species found in Turkey. This is the inaugural examination of the phytochemical, antioxidant, antibacterial, and cytotoxic properties of .
View Article and Find Full Text PDFA Label-Free Colorimetric Aptasensor for Flavokavain B Detection.
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Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
Flavokavain B (FKB), a hepatotoxic chalcone from (kava), has raised safety concerns due to its role in disrupting redox homeostasis and inducing apoptosis in hepatocytes. Conventional chromatographic methods for FKB detection, while sensitive, are costly and impractical for field applications. In this work, DNA aptamers were selected using the library-immobilized method and high-throughput sequencing.
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