Browsing by Author "Kadhem, Abbas J."
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artículo de publicación periódica.listelement.badge Enhancement of the fouling resistance of zwitterion coated ceramic membranes(2020) Storms, Max; Kadhem, Abbas J.; Xian, Shuting; Bernards, Matthew; Gentile, Guillermina J.; Fidalgo de Cortalezzi, María M.Ceramic membranes suffer from rapid permeability loss during filtration of organic matter due to their fouling propensity. To address this problem, iron oxide ultrafiltration membranes were coated with poly(sulfobetaine methacrylate) (polySBMA), a superhydrophilic zwitterionic polymer. The ceramic-organic hybrid membrane was characterized by scanning electron microscopy (SEM) and optical profilometry (OP). Membranes with and without polySBMA coating were subjected to fouling with bovine serum albumin solution. Hydraulic cleaning was significantly more effective for the coated membrane than for the non-coated one, as 56%, 66%, and 100% of the fouling was removed for the first, second, and third filtration cycle, respectively. Therefore, we can highlight the improved cleaning due to an increased fouling reversibility. Although some loss of polymer during operation was detected, it did not affect the improved behavior of the tested membranes.artículo de publicación periódica.listelement.badge Enhancement of the fouling resistance of zwitterion coated ceramic membranes(2020-08) Storms, Max; Kadhem, Abbas J.; Xiang, Shuting; Bernards, Matthew; Gentile, Guillermina José; Fidalgo de Cortalezzi, María Marta"Ceramic membranes suffer from rapid permeability loss during filtration of organic matter due to their fouling propensity. To address this problem, iron oxide ultrafiltration membranes were coated with poly(sulfobetaine methacrylate) (polySBMA), a superhydrophilic zwitterionic polymer. The ceramic-organic hybrid membrane was characterized by scanning electron microscopy (SEM) and optical profilometry (OP). Membranes with and without polySBMA coating were subjected to fouling with bovine serum albumin solution. Hydraulic cleaning was significantly more effective for the coated membrane than for the non-coated one, as 56%, 66%, and 100% of the fouling was removed for the first, second, and third filtration cycle, respectively. Therefore, we can highlight the improved cleaning due to an increased fouling reversibility. Although some loss of polymer during operation was detected, it did not affect the improved behavior of the tested membranes."artículo de publicación periódica.listelement.badge Molecularly imprinted polymers (MIPs) in sensors for environmental and biomedical applications : a review(2021) Kadhem, Abbas J.; Gentile, Guillermina J.; Fidalgo de Cortalezzi, María M.Molecular imprinted polymers are custom made materials with specific recognition sites for a target molecule. Their specificity and the variety of materials and physical shapes in which they can be fabricated make them ideal components for sensing platforms. Despite their excellent properties, MIP-based sensors have rarely left the academic laboratory environment. This work presents a comprehensive review of recent reports in the environmental and biomedical fields, with a focus on electrochemical and optical signaling mechanisms. The discussion aims to identify knowledge gaps that hinder the translation of MIP-based technology from research laboratories to commercialization.artículo de publicación periódica.listelement.badge Molecularly imprinted polymers (MIPs) in sensors for environmental and biomedical applications: a review(2021-10) Kadhem, Abbas J.; Gentile, Guillermina José; Fidalgo de Cortalezzi, María Marta"Molecular imprinted polymers are custom made materials with specific recognition sites for a target molecule. Their specificity and the variety of materials and physical shapes in which they can be fabricated make them ideal components for sensing platforms. Despite their excellent properties, MIP-based sensors have rarely left the academic laboratory environment. This work presents a comprehensive review of recent reports in the environmental and biomedical fields, with a focus on electrochemical and optical signaling mechanisms. The discussion aims to identify knowledge gaps that hinder the translation of MIP-based technology from research laboratories to commercialization."