In chemical-enhanced oil recovery (cEOR), surfactants are widely used but face significant stability challenges in high-salinity brine, where they often degrade or precipitate. Existing methods, such as adding cosurfactants, offer limited compatibility with anionic surfactants and raise economic concerns, creating a need for more robust solutions. This study introduces a novel approach to enhance the stability of anionic surfactants in extreme salinity conditions by incorporating silicon dioxide (SiO) nanoparticles (NPs).
View Article and Find Full Text PDFBackground: Missed abortion in the first trimester is characterized by the cessation of embryonic or fetal development while the cervix remains closed, often resulting in little to no bleeding. Ultrasound examinations typically reveal an empty gestational sac or an embryo/fetus that lacks cardiac activity. Misoprostol is the primary medication used to manage early pregnancy loss.
View Article and Find Full Text PDFThis study examined the effect of triple-frequency ultrasound treatment (TFUT)-assisted lactic acid bacteria (LAB-L. plantarum and L. helveticus fermentation for 24-h and 48-h) on the chemical, structural, morphological, metabolic, and sensory properties of rice lees (RL).
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