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A deep learning based model for diabetic retinopathy grading.
Sci Rep
January 2025
Department of Networks and Cybersecurity, Hourani Center for Applied Scientific Research, Al-Ahliyya Amman University, Amman, Jordan.
Diabetic retinopathy stands as a leading cause of blindness among people. Manual examination of DR images is labor-intensive and prone to error. Existing methods to detect this disease often rely on handcrafted features which limit the adaptability and classification accuracy.
View Article and Find Full Text PDFMalatya apricot gum: A source of natural gum and its physicochemical, functional and antioxidant properties.
Int J Biol Macromol
January 2025
Department of Food Physics, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran. Electronic address:
Gums are commonly used in the food industry for their functional properties. However, the growing demand for sustainable and alternative sources has drawn attention to the need for identifying and characterizing non-conventional gum sources with comparable or enhanced features. This study aimed to investigate the exudate gum from apricot trees (Prunus armeniaca) in Malatya as a potential alternative.
View Article and Find Full Text PDFDiscriminative ion detection of Hg and Cu and selective recognition of PO ions: Real time monitoring in food and water samples and molecular keypad lock integration.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, Mangalore, Karnataka 575 025, India.
A series of sensors, designated S3R1-S3R4, were designed and synthesized for the detection of PO ions and toxic metals, specifically Hg and Cu ions. The colorimetric detection of PO ions using these sensors exhibited a distinct visual color transition from yellow to purple in organo-aqueous media. The intrinsic cavity-like structure in the thiosemicarbazide-based derivative S3R4 significantly enhances the binding affinity for Hg and Cu ions in organic media.
View Article and Find Full Text PDFA highly sensitive and colorimetric fluorescent sensor for visualizing Zn in aqueous solution.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006 China. Electronic address:
A new colorimetric fluorescent sensor QPEBT was developed by merging the N,N-di(2-picolyl)ethane-1,2-diamine and 2,2'-bithiophene moieties into the quinolimide backbone. QPEBT could sensitively detect Zn through the remarkable fluorescence enhancement with distinct color changes from light orange to pink in visible light and from ginger to orange-yellow in 365 nm UV irradiation. The 1:1 stoichiometry between QPEBT and Zn was verified by the spectra titrations, Job's and HRMS analyses, and theoretical calculations.
View Article and Find Full Text PDFThe field of π-conjugated organic materials has seen significant advances in recent years. However, enhancing the functionality of well-established, mass-produced compounds remains a considerable challenge, despite being an intriguing strategy for designing high-value organic materials with low production costs. In this context, vat dyes, known for their wide range of colors and extensive use in the textile industry are particularly attractive.
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