The proposed method of emulsive polymerization provides the possibility of modifying and obtaining insoluble forms of superoxide dismutase (SOD), glutathione reductase, and streptolysin-O preserving nanoobjects (conformationally active centers and antigenic determinants) in their native states. Apart from enzymatic and immunological properties, the samples acquired some new features: resistance to high temperature, resistance to 3 M KCNS solution and buffer solutions with high concentration of hydrogen ions, and resistance to preserving solutions. Magnetic properties provide the possibility of simplifying enzyme-linked immunosorbent and immunofluorescence assays. In addition, sensitivity of these assays was by an order of magnitude higher and the specificity fully preserved. Taking all the facts into account, we prepared agents for long-term and repeated use. Due to preserved enzymatic properties, insoluble forms of SOD and glutathione reductase can be considered as a tool for correction of peroxide-antioxidant balance and associated immunological abnormalities.
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http://dx.doi.org/10.1007/s10517-011-1244-9 | DOI Listing |
Sci Rep
January 2025
Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran.
Strawberry fruits are highly perishable and have a limited shelf life. Therefore, effective methods such as essential oils (EOs) and edible coatings are required to mitigate spoilage and maintain fruit quality during storage. In the current study, Echinophora platyloba EO was extracted and subsequently formulated into a nanoemulsion.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
Institute of Advanced Chemistry of Catalonia (IQAC), Consejo Superior de Investigaciones Científicas (CSIC), Jordi Girona, 18-26, 08034 Barcelona, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN, ISCIII), Jordi Girona, 18-26, 08034 Barcelona, Spain. Electronic address:
Langmuir
January 2025
National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, P. R. China.
To balance the stability and dissolution of polyacrylamide (PAM), emulsion drag reducers dominate the successful operation of volumetric fracturing. Herein, a pH-switchable four-tailed ionic liquid surfactant (OA/Cyclen) is synthesized by oleic acid (OA) and 1,4,7,10-tetraazacyclododecane (Cyclen). The four-tailed structure of OA/Cyclen enhances the stability of the emulsion polymerization reactor and supplies enough switchable sites for triggering the intensified release of the PAM emulsion.
View Article and Find Full Text PDFPolymers (Basel)
December 2024
Institute of Theoretical and Experimental Biophysics RAS, Pushchino 142290, Russia.
The physicochemical properties of emulsions based on poloxamers (triblock copolymers of a hydrophobic polyoxypropylene chain and two hydrophilic polyoxyethylene chains) depend on the composition and preparation method. This study examined the impact of poloxamer P188 concentration, autoclaving mode, heating, and salt presence on the viscosity, particle size distribution, and morphology of particles using viscometric analysis, dynamic light scattering (DLS), and atomic force microscopy (AFM). It was shown that sample preparation affects the particle size and morphology but not the chemical composition of P188.
View Article and Find Full Text PDFMolecules
January 2025
Department of Energy and Power Engineering, Shanxi Institute of Energy, Jinzhong 030600, China.
Anisotropic particles have a wide range of applications in materials science such as emulsion stabilization, oil-water separation, and catalysis due to their asymmetric structure and properties. Nevertheless, designing and synthesizing large quantities of anisotropic particles with controlled morphologies continue to present considerable challenges. In this study, we successfully synthesized anisotropic microspheres using a soap-free seed emulsion polymerization method.
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