The authors suggest an unsophisticated approach to laboratory diagnosis of spongiform encephalopathies induced by unconventional prion viruses, consisting in electron microscopic detection of abnormal helical Scrapie-associated fibrils. These fibrils are detectable in human and animal brain tissue samples and in cell cultures.
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Prep Biochem Biotechnol
January 2025
Xinjiang University, Xinjiang, China.
This study aimed to optimize the ultrasonic/microwave-assisted extraction (UAME) technique of polysaccharides (EAP-UM) by response surface methodology (RSM). The optimum conditions include: solid-liquid ratio of 1:23 g/mL, ultrasonic power of 252 W, microwave power of 417 W, and extraction time of 11 min. Under these conditions, the yield of polysaccharides reached 7.
View Article and Find Full Text PDFChemistry
January 2025
IIT Kharagpur: Indian Institute of Technology Kharagpur, Dept of Chemistry, IIT Kharagpur, 721302, Kharagpur, INDIA.
Although metal organic frameworks (MOFs) and covalent organic frameworks (COFs) have been extensively used as fluorescent-based antibiotic sensors, newly developed hydrogen-bonded organic frameworks (HOFs) are largely unexplored toward this direction. To realize this, the luminescent HOFs must be stable in water as the analytes are mostly found in water-based effluents in environments. In addition, HOFs should be equipped with specific recognition sites in order to direct the discrimination among the antibiotics.
View Article and Find Full Text PDFAnal Sci
January 2025
National Institute of Polar Research (NIPR), 10-3 Midori-Cho, Tachikawa, Tokyo, 190-8518, Japan.
Magnesium phosphate grains, minor accessory minerals found on the primitive meteorite Yamato 980115 (Y 980115), were investigated by Raman microspectroscopy. All magnesium phosphate grains found in the present study can be assigned to farringtonite, dehydrated magnesium phosphate Mg(PO)-I. Since the Mg(PO)-I is generally formed via the irreversible thermal transition from the polymorphs of Mg(PO)-II and -III at above 750-800 degree Celsius, we can infer that the parent body of the Y 980115 meteorites experienced thermal alteration with such a high temperature.
View Article and Find Full Text PDFActa Parasitol
January 2025
Laboratory of Parasitic Eco-Epidemiology and Population Genetics, Pasteur Institute of Algeria, Dely-Brahim, Algiers, Algeria.
Purpose: Aedes albopictus, known as the Asian tiger mosquito, is an extensively studied mosquito species recognized for its rapid global expansion and its capacity to transmit a range of viruses such as dengue, chikungunya, Zika, and yellow fever viruses. In 2010, Ae. albopictus was observed for the first time in Tizi-Ouzou, Algeria, and since then has colonized all the northern part of the country until the semi-arid areas.
View Article and Find Full Text PDFEnviron Monit Assess
January 2025
College of the Environment and Ecology, Xiamen University, Xiamen, 361102, Fujian, China.
Synthetic organic dye such as methylene blue (MB) is non-biodegradable and highly toxic, released from textile wastewater. This work investigates the applicability of Ni@ZnO polymer nanocomposite for MB removal from the wastewater. To understand their differences before and after MB adsorption, composites' surface morphology was characterized by various techniques including scanning electron microscope (SEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), Fourier transformation infrared (FT-IR) and UV-Vis spectrophotometer.
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