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Multienzyme Immobilization on PVDF Membrane via One-Step Mussel-Inspired Method: Enhancing Fouling Resistance and Self-Cleaning Efficiency.
Membranes (Basel)
September 2024
Department of Food and Chemical Engineering, Universidade Regional Integrada do Alto Uruguai e das Missões (URI), 1621 Sete de Setembro Av., Centro, Erechim 99709-910, Brazil.
Immobilizing different enzymes on membranes can result in biocatalytic active membranes with a self-cleaning capacity toward a complex mixture of foulants. The membrane modification can reduce fouling and enhance filtration performance. Protease, lipase, and amylase were immobilized on poly(vinylidene fluoride) (PVDF) microfiltration membranes using a polydopamine coating in a one-step method.
View Article and Find Full Text PDFEfficacy of Self-assembling Peptide P11-4 in Remineralizing Caries-like Lesions in Primary Enamel Samples in Combination with Calcium Phosphate-based Remineralization Agents.
Int J Clin Pediatr Dent
May 2024
Department of Public Health Dentistry, JSS Dental College and Hospital, Mysuru, Karnataka, India.
Aims And Background: The efficacy of self-assembling peptide P11-4 in combination with calcium-phosphate-based remineralization agents in remineralizing caries-like lesions in primary enamel was evaluated using a 21-day pH cycling experiment by Vickers microhardness [Vickers hardness number (VHN)] and scanning electron microscopy (SEM).
Materials And Methods: A total of 120 primary enamel samples were made to undergo a demineralization cycle to produce caries-like lesions. They were divided into six groups, namely negative control (NC), positive control (P11-4), and four interventional groups in which each of the following calcium-phosphate-based agents were used in combination with P11-4-calcium sucrose phosphate (CSP), bioactive glass (BG), casein phosphopeptides, and casein phosphopeptides with fluoride.
Lattice matching enables construction of CaS@NaYF heterostructure with synergistically enhanced water resistance and luminescence for antibiotic detection.
Mikrochim Acta
July 2024
School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
Rare earth (RE)-doped CaS phosphors have been widely used as light-emitting components in various fields. Nevertheless, the application of nanosized CaS particles is still significantly limited by their poor water resistance and weak luminescence. Herein, a lattice-matching strategy is developed by growing an inert shell of cubic NaYF phase on the CaS luminescent core.
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