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Swelling Studies on Hydrogel Blend Used in Biomedical Applications
Published in Anandhan Srinivasan, Selvakumar Murugesan, Arunjunai Raj Mahendran, Progress in Polymer Research for Biomedical, Energy and Specialty Applications, 2023
Shreyas Devanathan, Sheila Devasahayam, Sri Bandyopadhyay
Artificial membranes are used to treat a broad variety of therapeutic purposes, as permselective barriers to permit transport of selected solutes to/from the blood, and to regulate the rate at which solutes are transferred across the membrane to maintain homeostasis (Catapano et al., 2008). Synthetic membranes are solid in nature and can be composed of ceramics, metals, polymers, or combinations thereof (Abetz, Brinkmann & Sözbilir, 2021). It is reported the transport properties of polymer system e.g., proton transfer rates, are similar to biomembranes. Design and scalability of the polymer-based materials pave the way for the design of novel materials that mimic biological materials for a range of other applications (Xu, 2021). Thermoplastic synthetic polymers are used for preparing semipermeable medical membranes owing to their good mechanical resistance and low density. They include acrylic polymers, polyamides, polycarbonates, polyolephines and polysulfones.
Sustainable Eco-Friendly Polymer-Based Membranes Used in Water Depollution for Life-Quality Improvement
Published in Neha Kanwar Rawat, Iuliana Stoica, A. K. Haghi, Green Polymer Chemistry and Composites, 2021
Adina Maria Dobos, Mihaela Dorina Onofrei, Anca Filimon
Over the past decade, numerous trials have been devoted to the manufacture of synthetic membranes for particular applications, having appropriate features, such as permeability, selectivity, and specific chemical and physical properties. To reach this target, various techniques have been performed, namely track-etching, stretching, sintering, phase inversion, electrospinning, and interfacial polymerization.21,22 Thus, the development of novel membrane modules and operating procedures has provided a key stimulus for the membranes industry growth. Because of their energy efficiency, the membranes will gain more importance compared to other technologies. This, in combination with the need for water purification, represents an opportunity for the membrane technology development. Better membranes are needed to meet these challenges. As the membranes of major interest are the polymeric ones, this also represents an opportunity for polymer science development.
Membrane Technology
Published in Chandan Das, Kibrom Alebel Gebru, Polymeric Membrane Synthesis, Modification, and Applications, 2018
Chandan Das, Kibrom Alebel Gebru
A synthetic membrane is a synthetically created membrane usually intended for separation purposes in a laboratory or industry. Synthetic membranes have been successfully used for small and large-scale industrial processes since the middle of the 20th century. A wide variety of synthetic membranes are known. They can be produced from organic materials such as polymers and liquids as well as inorganic materials. Most commercially used synthetic membranes in separation industry are made of polymeric structures. A schematic diagram of the membrane types is presented in Figure 1.2.
Transdermal delivery of acemetacin loaded microemulsions: preparation, characterization, in vitro – ex vivo evaluation and in vivo analgesic and anti-inflammatory efficacy
Published in Journal of Dispersion Science and Technology, 2023
Emre Şefik Çağlar, Mehmet Evren Okur, Buket Aksu, Neslihan Üstündağ Okur
1 g of microemulsions were placed in a dialysis bag. A synthetic membrane (Spectra/por Dialysis Membrane, molecular weight 12–14 kDa) was used to make the dialysis bag. To establish the sink condition, the receiver compartment (100 mL) was filled with EtOH and PBS pH 7.4 (in a 30:70 ratio). The release medium was regularly stirred with a magnetic bar (150 rpm) and covered with parafilm to minimize evaporation while the receptor compartment was kept at 32 °C. Samples were taken from the release medium at 0, 0.5, 1, 2, 4, 6, 8, 10, 12, and 24 hours. According to the methodology, the samples were analyzed using HPLC.[12]