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How Do the Valency and Radii of Cations Affect the Rheological Properties of Aqueous Solutions of Zwitterionic and Anionic Surfactant Mixtures?
Langmuir
January 2025
Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, ul. Berdychowo 4, PL 60-965 Poznan, Poland.
Despite extensive research on the use of salts to enhance micellar growth, numerous questions remain regarding the impact of ionic exchange and molecular structure on charge neutralization. This study looks into how certain cations (Na, Ca, and Mg) affect the structure of a cocamidopropyl betaine CAPB and sodium dodecylbenzenesulfonate SDBS surfactant mixture, aiming toward applications in targeted delivery systems. The mixture consists of a zwitterionic surfactant, cocamidopropyl betaine (CAPB), and an anionic surfactant, sodium dodecylbenzenesulfonate (SDBS), combined in varying molar ratios at a total concentration of 200 mM.
View Article and Find Full Text PDFNavigating Bowel Preparation for Colonoscopy: A Comprehensive Overview.
J Clin Gastroenterol
December 2024
Department of Medicine.
Colorectal cancer (CRC) is the third most common cancer in the United States. Early detection through colonoscopy significantly improves survival rates. Detecting colon polyps depends on the quality of bowel preparation.
View Article and Find Full Text PDFMineral Scaling in 3D Interfacial Solar Evaporators─A Challenge for Brine Treatment and Lithium Recovery.
Environ Sci Technol
January 2025
Department of Civil and Environmental Engineering, University of California, Berkeley, Berkeley, California 94720, United States.
In this work, we analyzed the effects of mineral scaling on the performance of a 3D interfacial solar evaporator, with a focus on the cations relevant to lithium recovery from brackish water. The field has been rapidly moving toward resource recovery applications from brines with higher cation concentrations. However, the potential complications caused by common minerals in these brines other than NaCl have been largely overlooked.
View Article and Find Full Text PDFImpacts of long-term irrigation of municipally-treated wastewater to the soil microbial and nutrient properties.
Sci Total Environ
January 2025
School of the Environment, Florida A&M University, Tallahassee, FL, United States of America.
Reusing treated wastewater (TWW) for crop irrigation has shown to provide environmental and economic benefits as well as drawbacks. This study was conducted using soils collected from a wastewater reuse facility in Tallahassee, FL, mainly to elucidate the long-term impact(s) of TWW irrigation on soil microbiome and nutrient status. Approximately 890 ha of land have been spray-irrigated with TWW since the 1980's to grow fodder crops.
View Article and Find Full Text PDF[Single-Laboratory Validation Study of Simultaneous Determination Methodfor Five Organochlorine Unstable Pesticides in Agricultural Products by GC-MS/MS].
Shokuhin Eiseigaku Zasshi
December 2024
A method was developed for determining five organochlorine unstable pesticides (captan, chlorothalonil, dichlofluanid, folpet, and tolylfluanid) in agricultural products using GC-MS/MS. To prevent pesticide degradation, the food sample was maintained at -20℃ until the initiation of the extraction process. The sample underwent homogenization with acetonitrile and salting out using anhydrous magnesium sulfate and sodium chloride in the presence of citrate salts.
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