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Membranes, Volume 13, Issue 8

August 2023 - 58 articles

Cover Story: Intracellular domain dynamics of the TRPV1 channel, a multimodal receptor for capsaicin, protons, and heat, were analyzed using the diffracted X-ray tracking (DXT) technique. The DXT employs high-flux X-rays with wavelengths ranging from 0.01 nm to 0.1 nm, enabling positioning accuracy at the picometer level and measuring timescales from microseconds to milliseconds. Diffractions from gold nanocrystals bound to the antibodies track the motions of the N- and C-termini. By utilizing two different framing rates with a lifetime filtering technique, the intracellular motion of TRPV1 was successfully extracted across three timescales. Capsaicin increased C-terminal fluctuation as a high-speed motion component, while the N-terminal domain represented an intrinsic twisting movement. TRPV1 model, PDB 3J5P. View this paper
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Articles (58)

  • Article
  • Open Access
3 Citations
1,823 Views
14 Pages

Effect of Thermally Reduced Graphene on the Characteristics and Performance of Polysulfone Mixed Matrix Ultrafiltration Membranes

  • Omnya Abdala,
  • Ahmed Nabeeh,
  • Abdul Rehman,
  • Ahmed Abdel-Wahab,
  • Mohammad K. Hassan and
  • Ahmed Abdala

21 August 2023

Ultrafiltration (UF) polymeric membranes are widely used in water treatment and support desalination and gas separation membranes. In this article, we enhance the performance of Polysulfone (PSF) mixed matrix membranes (MMMs) by dispersing different...

  • Article
  • Open Access
4 Citations
4,231 Views
17 Pages

21 August 2023

Modernization of wastewater treatment plants is usually caused by their significant wear and changes in the flow rate and concentration of pollutants. If there is no initial data on the flow or pollution, their determination by calculation is require...

  • Article
  • Open Access
6 Citations
2,365 Views
14 Pages

Theoretical Model for the Prediction of Water Flux during the Concentration of an Olive Mill Wastewater Model Solution by Means of Forward Osmosis

  • Magdalena Cifuentes-Cabezas,
  • Silvia Álvarez-Blanco,
  • José Antonio Mendoza-Roca,
  • María Cinta Vincent-Vela and
  • José M. Gozálvez-Zafrilla

21 August 2023

Currently, understanding the dynamics of the interaction between the agents in a process is one of the most important factors regarding its operation and design. Membrane processes for industrial wastewater management are not strangers to this topic....

  • Article
  • Open Access
8 Citations
2,157 Views
21 Pages

21 August 2023

In this study, polyethersulfone (PES) ultrafiltration (UF) membranes were modified with GO, Ag, ZnO, Ag-GO and ZnO-GO nanoparticles to improve carbamazepine removal and fouling prevention by making membrane surfaces more hydrophilic. The fabricated m...

  • Article
  • Open Access
21 Citations
4,139 Views
16 Pages

Ultrafiltration and Nanofiltration for the Removal of Pharmaceutically Active Compounds from Water: The Effect of Operating Pressure on Electrostatic Solute—Membrane Interactions

  • Alexandre Giacobbo,
  • Isabella Franco Pasqualotto,
  • Rafael Cabeleira de Coronel Machado Filho,
  • Miguel Minhalma,
  • Andréa Moura Bernardes and
  • Maria Norberta de Pinho

19 August 2023

The present work investigates nanofiltration (NF) and ultrafiltration (UF) for the removal of three widely used pharmaceutically active compounds (PhACs), namely atenolol, sulfamethoxazole, and rosuvastatin. Four membranes, two polyamide NF membranes...

  • Article
  • Open Access
6 Citations
2,152 Views
16 Pages

18 August 2023

An experimental laboratory set of samples of composite heterogeneous anion-exchange membranes was obtained by us for the development of our original method of polycondensation filling. Anion-exchange membranes were prepared on plasma-treated and non-...

  • Article
  • Open Access
2,989 Views
19 Pages

Incorporation of an Intermediate Polyelectrolyte Layer for Improved Interfacial Polymerization on PAI Hollow Fiber Membranes

  • Maria A. Restrepo,
  • Mehrdad Mohammadifakhr,
  • Johannes Kamp,
  • Krzysztof Trzaskus,
  • Antoine J. B. Kemperman,
  • Joris de Grooth,
  • Hendrik D. W. Roesink,
  • Hannah Roth and
  • Matthias Wessling

18 August 2023

In a single-step spinning process, we create a thin-walled, robust hollow fiber support made of Torlon® polyamide-imide featuring an intermediate polyethyleneimine (PEI) lumen layer to facilitate the integration and covalent attachment of a dense sel...

  • Article
  • Open Access
3 Citations
2,284 Views
21 Pages

MID-FTIR-PLS Chemometric Analysis of Cr(VI) from Aqueous Solutions Using a Polymer Inclusion Membrane-Based Sensor

  • Armando Martínez de la Peña,
  • Eduardo Rodríguez de San Miguel and
  • Josefina de Gyves

18 August 2023

A partial least squares (PLS) quantitative chemometric method based on the analysis of the mid-Fourier transform infrared spectroscopy (MID-FTIR) spectrum of polymer inclusion membranes (PIMs) used for the extraction of Cr(VI) from aqueous media is d...

  • Article
  • Open Access
2 Citations
2,864 Views
17 Pages

17 August 2023

Electrochemical characterization of positively and negatively charged membranes is performed by analyzing membrane potential values on the basis of the Teorell–Meyer–Sievers (TMS) model. This analysis allows the separate estimation of Don...

  • Review
  • Open Access
3 Citations
3,442 Views
30 Pages

Recovery of Homogeneous Platinoid Catalysts from Pharmaceutical Media: Review on the Existing Treatments and the Perspectives of Membrane Processes

  • Adrien Magne,
  • Emilie Carretier,
  • Lilivet Ubiera Ruiz,
  • Thomas Clair,
  • Morgane Le Hir and
  • Philippe Moulin

17 August 2023

Catalyst recovery is a major challenge for reaching the objectives of green chemistry for industry. Indeed, catalysts enable quick and selective syntheses with high reaction yields. This is especially the case for homogeneous platinoid catalysts whic...

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Membranes - ISSN 2077-0375