Latest Scientific Discoveries in Polymer Membranes

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Polymeric Membranes".

Deadline for manuscript submissions: closed (20 May 2023) | Viewed by 3175

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Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Bucharest, Romania
Interests: polymers; biopolymers; membranes; wastewater; pollutants; hybrid films; electrochemistry; corrosion; membrane separation processes
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Special Issue Information

Dear Colleagues,

We are pleased to invite you to submit your work to this Special Issue on “Latest Scientific Discoveries in Polymer Membranes”. The synthesis and applications of various polymeric membranes have grate attention in recent years due to some advantages such as high separation efficiency, high selectivity, feasibility, the ability to remove different contaminants or pollutants from water and wastewater, high flow at low pressures, fouling resistance, good mechanical and chemical stability.

This Special Issue of Membranes aims to cover recent advances in synthesis, characterization and applications of polymer membranes. The most used polymer membranes synthesis includes phase inversion, non-solvent induced phase separation, vapor-induced phase separation, electrospinning and sintering. The aim of this Special Issue is to open for a range of subjects: materials synthesis to the design and characterization of polymer membranes, the development of resistant, high conductive and selective polymer membranes, polymer membrane processes, and technologies with novel polymers integration. The establishing a relationship between the cleaning procedures and the changes in the mechanical, physicochemical properties of the polymer membranes, and their associated beneficial properties for various applications based on polymer membranes (e.g., electrodialysis, ultrafiltration, nanofiltration, microfiltration, osmosis, reverse osmosis, desalination of brackish or saline waters), will be gladly considered.

In this Special Issue, original research articles, full papers, communications and reviews that have not yet been published or that are not currently under review by other journals are invited.

Topics include but are not limited to:

  • Advances in synthesis and preparation
  • Membrane processes and technologies
  • Selective separations
  • Polymeric membranes in water and wastewater treatment
  • Structure-property relationships of polymer membranes/membrane materials
  • Characterization of materials by various techniques (e.g., FTIR, SEM, TEM, water contact angle, surface free energy, electrochemical impedance spectroscopy (EIS))

Dr. Simona Căprărescu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • polymer membranes
  • membrane processes
  • characterization
  • membrane performances
  • functional membranes
  • smart polymers
  • selective separations

Published Papers (2 papers)

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Research

16 pages, 5118 KiB  
Article
Fabrication of Colored Polymeric Membrane Using Clay-Based Nano Pigments of Safranin O (SO) Dye
by Chandra Mohan, Priyanka Kumari, Neeraj Kumari and Arvind Negi
Membranes 2023, 13(7), 619; https://doi.org/10.3390/membranes13070619 - 24 Jun 2023
Cited by 1 | Viewed by 1014
Abstract
In the present work, a novel methodology was developed for the fabrication of clay-based nano pigments with enhanced thermal stability and used further as a colorant to prepare polymeric membranes. Initially, the batch extraction studies were performed to analyze the maximum adsorption of [...] Read more.
In the present work, a novel methodology was developed for the fabrication of clay-based nano pigments with enhanced thermal stability and used further as a colorant to prepare polymeric membranes. Initially, the batch extraction studies were performed to analyze the maximum adsorption of Safranin O (SO) dye onto pristine montmorillonite (Mt) and organo montmorillonite (OMt) by varying different parameters like pH, contact time, and concentration. It was confirmed from batch extraction studies that the adsorption efficacy of pristine Mt for SO was found to be more than OMt due to their negatively charged surface. Clay-based nano pigments were fabricated by considering the optimized condition where the maximum uptake of SO was observed and further characterized by XRD, FTIR, TGA, and SEM techniques. XRD studies confirmed the intercalation of SO dye while FTIR spectra revealed surface interaction of the dye with Mt/OMt. TGA studies showed that the clay-based nano pigments had more thermal stability than pure SO. Nano pigments were used as colorants to prepare thin, transparent, and homogeneously dispersed polymeric membranes through the solvent casting method. XRD studies of the polymeric membrane confirmed that the intercalation of poly methylmethacrylate (PMMA) into the interlayer of clay increases interlayer spacing, which was further confirmed by the TEM analysis. The mechanical properties of the PMMA polymeric membrane were also enhanced after the dispersion of clay-based nano pigments. Full article
(This article belongs to the Special Issue Latest Scientific Discoveries in Polymer Membranes)
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16 pages, 3806 KiB  
Article
A Novel In Vitro Wound Healing Assay Using Free-Standing, Ultra-Thin PDMS Membranes
by Karya Uysal, Ipek Seda Firat, Till Creutz, Inci Cansu Aydin, Gerhard M. Artmann, Nicole Teusch and Aysegül Temiz Artmann
Membranes 2023, 13(1), 22; https://doi.org/10.3390/membranes13010022 - 24 Dec 2022
Viewed by 1757
Abstract
Advances in polymer science have significantly increased polymer applications in life sciences. We report the use of free-standing, ultra-thin polydimethylsiloxane (PDMS) membranes, called CellDrum, as cell culture substrates for an in vitro wound model. Dermal fibroblast monolayers from 28- and 88-year-old donors were [...] Read more.
Advances in polymer science have significantly increased polymer applications in life sciences. We report the use of free-standing, ultra-thin polydimethylsiloxane (PDMS) membranes, called CellDrum, as cell culture substrates for an in vitro wound model. Dermal fibroblast monolayers from 28- and 88-year-old donors were cultured on CellDrums. By using stainless steel balls, circular cell-free areas were created in the cell layer (wounding). Sinusoidal strain of 1 Hz, 5% strain, was applied to membranes for 30 min in 4 sessions. The gap circumference and closure rate of un-stretched samples (controls) and stretched samples were monitored over 4 days to investigate the effects of donor age and mechanical strain on wound closure. A significant decrease in gap circumference and an increase in gap closure rate were observed in trained samples from younger donors and control samples from older donors. In contrast, a significant decrease in gap closure rate and an increase in wound circumference were observed in the trained samples from older donors. Through these results, we propose the model of a cell monolayer on stretchable CellDrums as a practical tool for wound healing research. The combination of biomechanical cell loading in conjunction with analyses such as gene/protein expression seems promising beyond the scope published here. Full article
(This article belongs to the Special Issue Latest Scientific Discoveries in Polymer Membranes)
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