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Journal articles on the topic 'Microporous membrane'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Drioli, E., V. Calabro, and Y. Wu. "Microporous membranes in membrane distillation." Pure and Applied Chemistry 58, no. 12 (1986): 1657–62. http://dx.doi.org/10.1351/pac198658121657.

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2

Ozawa, K., K. Ohashi, T. Ide, and K. Sakai. "Technical Evaluation of Newly-Developed Inorganic Membranes for Plasma Fractionation." International Journal of Artificial Organs 12, no. 3 (1989): 195–99. http://dx.doi.org/10.1177/039139888901200311.

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Constant transmembrane pressure experiments were made by crossflow filtration to clarify sieving characteristics of microporous glass membranes for plasma fractionation. The distribution of pore diameters is more limited in the microporous glass membranes than in currently utilized synthetic polymer membranes. The filtration resistance of the concentration polarization layer is the dominant factor in plasma fractionation. Proteins are separated more sharply with a higher wall shear rate because of destruction of the concentration polarization layer formed on membrane surfaces. Plasma fractiona

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3

Nakamura, Shunichi, and Yukio Mizutani. "Microporous Polyolefine Sheets." membrane 19, no. 2 (1994): 141–43. http://dx.doi.org/10.5360/membrane.19.141.

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4

Chen, R. T., M. G. Jamieson, and R. Callahan. "SEM/FESEM imaging of lamellar structures in melt extruded polyethylene films." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1142–43. http://dx.doi.org/10.1017/s0424820100130341.

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“Row lamellar” structures have previously been observed when highly crystalline polymers are melt-extruded and recrystallized under high stress. With annealing to perfect the stacked lamellar superstructure and subsequent stretching in the machine (extrusion) direction, slit-like micropores form between the stacked lamellae. This process has been adopted to produce polymeric membranes on a commercial scale with controlled microporous structures. In order to produce the desired pore morphology, row lamellar structures must be established in the membrane precursors, i.e., as-extruded and anneale

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5

Chung, Tai-Shung. "A Review of Microporous Composite Polymeric Membrane Technology for Air-Separation." Engineering Plastics 4, no. 4 (1996): 147823919600400. http://dx.doi.org/10.1177/147823919600400407.

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A detailed review of the fabrication technology of microporous composite polymeric membranes has been conducted. We believe that this type of membrane has greater potential than the traditional asymmetric-composite membranes to be used for the development of the third generation of gas-separation membranes. However, there are four major challenges when preparing a high-performance microporous composite membrane: namely, eliminating pore intrusion, reducing coating thickness, improving interfacial adhesion and enhancing separation performance. In this article, we review and identify those appro

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6

Chung, Tai-Shung. "A Review of Microporous Composite Polymeric Membrane Technology for Air-Separation." Polymers and Polymer Composites 4, no. 4 (1996): 269–83. http://dx.doi.org/10.1177/096739119600400407.

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A detailed review of the fabrication technology of microporous composite polymeric membranes has been conducted. We believe that this type of membrane has greater potential than the traditional asymmetric-composite membranes to be used for the development of the third generation of gas-separation membranes. However, there are four major challenges when preparing a high-performance microporous composite membrane: namely, eliminating pore intrusion, reducing coating thickness, improving interfacial adhesion and enhancing separation performance. In this article, we review and identify those appro

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7

Liu, Cuijing, Daisuke Saeki, and Hideto Matsuyama. "A novel strategy to immobilize enzymes on microporous membranes via dicarboxylic acid halides." RSC Adv. 7, no. 76 (2017): 48199–207. http://dx.doi.org/10.1039/c7ra10012d.

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A simple and efficient enzyme immobilization strategy on microporous membrane surfaces using dicarboxylic acid halides as a spacer offers a tool to design membranes used in enzymatic membrane reactors.

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8

Verweij, Henk, Y. S. Lin, and Junhang Dong. "Microporous Silica and Zeolite Membranes for Hydrogen Purification." MRS Bulletin 31, no. 10 (2006): 756–64. http://dx.doi.org/10.1557/mrs2006.189.

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AbstractMicroporous amorphous silica and zeolite membranes are made as thin films on a multilayer porous support. The membranes have a network of connected micropores with ∼0.5–nm diameters. Net transport of small molecules on this network occurs under the driving force of a gradient in chemical potential. Favorable combinations of sorption selectivity and diffusion mobility in the membrane materials lead to high H2 fluxes and good selectivity with respect to other gases. The membranes show potential for application in H2 separation under harsh conditions. Amorphous silica membranes show very

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9

Anggarini, Ufafa, Liang Yu, Hiroki Nagasawa, Masakoto Kanezashi, and Toshinori Tsuru. "Metal-induced microporous aminosilica creates a highly permeable gas-separation membrane." Materials Chemistry Frontiers 5, no. 7 (2021): 3029–42. http://dx.doi.org/10.1039/d1qm00009h.

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Hybrid microporous aminosilica membranes have been successfully synthesized via doping with Ag-, Cu- and Ni-into dense bis[3-(trimethoxysilyl)propyl] amine (BTPA) membranes, which creates micropores via the crosslinking between donor pairs of electrons in the amine moiety and electron acceptors in the empty “d” orbital of a transition metal.

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10

Guo, Gui Zhen, You Yi Sun, Bin Hua Yang, and Ya Qing Liu. "Controlled Preparation of Microporous Polymer Membrane by Simple Biodegradation Method." Applied Mechanics and Materials 109 (October 2011): 110–13. http://dx.doi.org/10.4028/www.scientific.net/amm.109.110.

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A microporous poly(vinyl alcohol)/Starch composite polymer membrane was successfully synthesized by a biodegradation method. Effects of different poly(vinyl alcohol)/Starch compositions on the porous structures of the porous polymer membranes were further investigated in detail. The characteristic properties of PVA/ Starch composite polymer membranes were systematically studied by scanning electron microscopy (SEM), SL200B angle of contact instrument and Sturm test. The result shows the formation of 1μm-10μm microporous in the blend polymer membrane, which strongly depended on the content of s

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11

Zhang, Shijie, Qiuying Li, Yujin Liu, Chifei Wu, and Weihong Guo. "Polytetrafluoroethylene (PTFE)/carbon black (CB) microporous membranes produced from PTFE/CB composite particles prepared by heterocoagulation process." High Performance Polymers 29, no. 1 (2016): 104–12. http://dx.doi.org/10.1177/0954008316629724.

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Polytetrafluoroethylene (PTFE)/carbon black (CB) microporous membranes with excellent properties were successfully prepared via heterocoagulation process and mechanical stretching method. Heterocoagulation was achieved using PTFE emulsion with 26% solid content, an intermediate product of the commercial PTFE dispersions with 60% solid content, and CB dispersions to prepare PTFE/CB composite particles by mechanical stirring, which is the unique content in this article. Furthermore, in order to obtain uniform distribution of CB particles within the membrane matrix as well as improve color unifor

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12

Qu, Jia Le, and Quan Jie Wang. "Flame Retardant Polyurethane Microporous Membrane Preparation and the Performance Testing." Applied Mechanics and Materials 174-177 (May 2012): 852–59. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.852.

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Take liquid phase separation method to prepare polyurethane microporous membrane. In the preparation of microporous membrane process phosphorus add modification flame retardant agent in order to improve the polyurethane flame retardant properties. Experiments prove that the add of flame retardant can increase the flame retardant performance of polyurethane greatly. when phosphorus add quantity of flame retardant agent for 8 % polyurethane microporous membrane flame retardant was the best effect. And microporous membrane other performance also have no obvious effect. Because of flame retardant

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13

Nie, Xin Xin, Zi Nian Zhao, and Xiao Yan Cheng. "Effect of Additives on the Performance of PU/SiO₂ Hybrid Membrane." Advanced Materials Research 123-125 (August 2010): 39–42. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.39.

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By mixing PEG or LiCl respectively into the casting solution, the polyurethane (PU)/SiO2 hybrid membranes were prepared by means of immerged phase inversion process. The method of NMR relaxation time T1 value was used to determine effect of the segmental movement of PU macromolecule in the casting solution on the microporous structure of membrane. The membrane section photos of SEM and properties of the PU hybrid membranes were investigated respectively. The results showed that blending SiO2, and with LiCl or PEG into the PU solution system, the T1 value synchronistically decreased. That was r

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14

Prasad, R., and K. K. Sirkar. "Microporous Membrane Solvent Extraction." Separation Science and Technology 22, no. 2-3 (1987): 619–40. http://dx.doi.org/10.1080/01496398708068971.

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15

Wickramasinghe, S. R., B. Han, J. D. Garcia, and R. Specht. "Microporous membrane blood oxygenators." AIChE Journal 51, no. 2 (2005): 656–70. http://dx.doi.org/10.1002/aic.10327.

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16

Zhou, Wei, Lin Zhang, Pute Wu, Yaohui Cai, Xiao Zhao, and Chunping Yao. "Study on Permeability Stability of Sand-Based Microporous Ceramic Filter Membrane." Materials 12, no. 13 (2019): 2161. http://dx.doi.org/10.3390/ma12132161.

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The instability of diafiltration is a widespread problem in the practical application of microporous ceramic filtration membranes. In this paper, a series of microporous ceramic filter membranes were prepared using inexpensive standard sand and river sand as matrix materials. Semi-empirical formula for the effective permeability radius of ceramic membranes with respect to time was established from analysis of the response mechanism between water flow and material properties. Finally, on the basis of theoretical analysis, some measures were proposed to improve permeate flux. The experimental re

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17

Yan, Jiangyi, Lihong Nie, Guiliang Li, et al. "Axial Crystal Growth Evolution and Crystallization Characteristics of Bi-Continuous Polyamide 66 Membranes Prepared via the Cold Non-Solvent-Induced Phase Separation Technique." Polymers 14, no. 9 (2022): 1706. http://dx.doi.org/10.3390/polym14091706.

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Polyamide 66 microporous membranes were prepared by cold non-solvent-induced phase separation using polyamide 66-formic acid-propylene carbonate as a ternary membrane-forming system. The formed membranes exhibited a special bicontinuous structure consisting of interglued spherical crystals or interlocked bundles of microcrystalline aggregates. The variation of the microporous structure under the influence of preparation conditions, solvent, aging time, and polymer concentration affects the comprehensive performance of the membranes. For example, the cold-induced operation and the use of differ

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18

Wan Zulaisa Amira, Wan Jusoh, and Abdul Rahman Sunarti. "Development of Hydrophobic Microporous Isotactic Polypropylene Membrane for Membrane Contactor Application." Advanced Materials Research 1113 (July 2015): 36–42. http://dx.doi.org/10.4028/www.scientific.net/amr.1113.36.

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Membrane Contactor (MC) is a well-known membrane technology to provide significant advantages required by industries. For MC, a hydrophobic membrane required as a barrier so that liquid absorbent and flue gaseous do not disperse with one another. However, the major concern in hydrophobic membrane is getting swelling by liquid after a short operating period. To minimize the swelling, this study focused on the exploration on membrane fabrication by Thermally Induced Phase Separation (TIPS). As the immersion in solvents is one of the important step to extract the diluent from membranes pores, the

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19

Park, Jiyeong, Seok-Hong Min, Won-Hee Lee, No-Suk Park, Hyung-Soo Kim, and Jong-Oh Kim. "Properties and filtration performance of microporous metal membranes fabricated by rolling process." Journal of Water Reuse and Desalination 7, no. 1 (2016): 11–15. http://dx.doi.org/10.2166/wrd.2016.000.

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We evaluated the filtration performance of microporous metal membranes fabricated by the rolling process. Metal wire meshes were rolled with thickness reduction ratios of 10, 20, and 30%. The pore size of the metal wire mesh membrane decreased with increasing rolling ratio, whereas the removal efficiency of the suspended solids and turbidity showed a very slight increase compared to that of an unrolled mesh membrane. The metal powder was dispersed on the surface of the rolled metal wire mesh membrane and bound with polyvinyl alcohol, then dried at 100°C for 1 h, and finally sintered at 1,000°C

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20

Raveshiyan, Saba, Reza Yegani, Behzad Pourabbas, and Akram Tavakkoli. "Study on the Fabrication of Superhydrophobic Microporous Polypropylene Flat Membrane Using In Situ Synthesis of Modified Fluorinated Silica Nano Particles." Advanced Materials Research 829 (November 2013): 371–75. http://dx.doi.org/10.4028/www.scientific.net/amr.829.371.

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The wettability is the most important features of membrane, when it works as contactors. Although the membrane contactors offer many advantages over conventional contacting equipments, additional mass transfer resistance is introduced when micropores are filled with aqueous absorbents. Therefore, fabrication of superhydrophobic membrane which prevents diffusion of aqueous absorbent into membrane pores is a highly challenging task. In this work, superhydrophobic polypropylene (PP) membrane was fabricated using in situ synthesis of silica nano particles via thermally induced phase separation (TI

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21

Taib, Nur Umira, and Nurul Hayati Idris. "Microporous Chitosan-Succinonitrile Membrane for Lithium Rechargeable Batteries." Advanced Materials Research 1133 (January 2016): 8–12. http://dx.doi.org/10.4028/www.scientific.net/amr.1133.8.

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In this work, microporous chitosan-succinonitrile membranes were prepared by phase separation method. The membranes were characterized using electrochemical impedance spectroscopy and scanning electron microscope. It was found that the addition of succinonitrile increased the pore size, which in turn increased the ionic conductivity of the chitosan-succinonitrile membrane.

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22

Vijayakumar, G., S. N. Karthick, and A. Subramania. "A New Class of P(VdF-HFP)-CeO2-LiClO4-Based Composite Microporous Membrane Electrolytes for Li-Ion Batteries." International Journal of Electrochemistry 2011 (2011): 1–10. http://dx.doi.org/10.4061/2011/926383.

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Composite microporous membranes based on Poly (vinylidene fluoride–co-hexafluoro propylene) P(VdF-co-HFP)-CeO2were prepared by phase inversion and preferential polymer dissolution process. It was then immersed in 1M LiClO4-EC/DMC (v/v=1:1) electrolyte solution to obtain their corresponding composite microporous membrane electrolytes. For comparison, composite membrane electrolytes were also prepared by conventional phase inversion method. The surface morphology of composite membranes obtained by both methods was examined by FE-SEM analysis, and their thermal behaviour was investigated by DSC a

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23

Lee, Tsung-Han, Jong Baek, Liangdong Fan, Florencia Wiria, Pei-Chen Su, and Seong Lee. "SDC-Infiltrated Microporous Silver Membrane with Superior Resistance to Thermal Agglomeration for Cathode-Supported Solid Oxide Fuel Cells." Energies 11, no. 9 (2018): 2181. http://dx.doi.org/10.3390/en11092181.

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This work presents a microporous silver cathode membrane reinforced with infiltration of samarium-doped ceria (SDC). The ion-conducting SDC effectively confines the surface of a porous silver membrane to maintain microporous structure and prevents the electrode agglomeration. SDC precursor solution is fired together with silver membrane at 700 °C for 2 h and formed as a nanocrystalline SDC on the silver pore surface. The SDC-infiltrated microporous silver membrane shows superior resistance to agglomeration without noticeable change in microstructures even at 900 °C for 12 h, which makes it pro

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24

Kim, Eui Soon, Ju Hong Ko, Sang Moon Lee, Hae Jin Kim, and Seung Uk Son. "Microporous organic network@PET hybrid membranes: removal of minute organic pollutants dissolved in water." RSC Advances 6, no. 87 (2016): 83942–46. http://dx.doi.org/10.1039/c6ra13220k.

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Microporous organic networks (MONs) were incorporated into a polyethylene terephthalate (PET) membrane. The resultant MON@PET hybrid membranes showed promising filtration towards aromatic pollutants dissolved in water.

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25

Researcher. "A REVIEW: MEMBRANE DISTILLATION FOR ETHANOL SEPARATION FROM FERMENTATION BROTH." International Journal of Advanced Research in Engineering and Technology (IJARET) 15, no. 6 (2024): 1–19. https://doi.org/10.5281/zenodo.14088877.

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Fermentation of biomass is a well known technique used to produce the ethanol that can be used as an energy source to fulfill the energy demand of the rapidly expanding population and fuel demand of the transportation sector. Continuous ethanol separation from the fermentation broths can enhance the efficiency of the fermentation process. Membrane distillation in combination with the fermentation process may be the effective technique for ethanol separation. Membrane distillation is a separation process in which liquid mixture is vaporized by providing heat and vapour molecules are transferred

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26

Du, Wen Lin, Tie Wei Shen, Shi Jiang Wang, et al. "Poly(N,N-Dimethylaminoethyl Methacrylate) Gas Separation Membranes." Advanced Materials Research 781-784 (September 2013): 2565–68. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.2565.

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Composite membranes comprised of a thin poly (N,N-dimethylaminoethyl methacrylate) layer and a microporous polysulfone substrate were prepared by coating method. The effects of parameters involved in the membrane preparation procedure on the permselectivity of the resulting membrane were investigated by a factorial design. The permeability of the membrane to N2, CH4 and CO2 was tested and the membrane showed a high permselectivity to CO2.

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27

Li, Hang, Zhuonan Song, Xiaojie Zhang, et al. "Ultrathin, Molecular-Sieving Graphene Oxide Membranes for Selective Hydrogen Separation." Science 342, no. 6154 (2013): 95–98. http://dx.doi.org/10.1126/science.1236686.

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Ultrathin, molecular-sieving membranes have great potential to realize high-flux, high-selectivity mixture separation at low energy cost. Current microporous membranes [pore size < 1 nanometer (nm)], however, are usually relatively thick. With the use of current membrane materials and techniques, it is difficult to prepare microporous membranes thinner than 20 nm without introducing extra defects. Here, we report ultrathin graphene oxide (GO) membranes, with thickness approaching 1.8 nm, prepared by a facile filtration process. These membranes showed mixture separation selectivities as high

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28

Liu, Rong, Yan Wang, Jing Zhu, Zu Ming Hu, and Jun Rong Yu. "Effect of Modified NanoSiO₂ Agents on the Morphologies and Performances of UHMWPE Microporous Membrane via Thermally Induced Phase Separation." Materials Science Forum 848 (March 2016): 726–32. http://dx.doi.org/10.4028/www.scientific.net/msf.848.726.

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The effects of Modified NanoSiO2 Agents on the morphology and performance of ultra-high-molecular weight polyethylene (UHMWPE) microporous membranes via thermally induced phase separation were investigated in this work. The NanoSiO2 was surface modified by silane coupling agent KH570 (KH570-NanoSiO2). Differential scanning calorimetry (DSC) and X-Ray Diffraction (XRD) were performed to obtain crystallization of UHMWPE/white oil/ KH570-NanoSiO2 doped system. The morphology and performance of the prepared UHMWPE microporous membranes were characterized with scanning electron microscopy (SEM) and

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29

Pu, Wei Hua, Xiang Ming He, Li Wang, Chang Yin Jiang, Chun Rong Wan, and Shi Chao Zhang. "Poly(Acrylonitrile-Methyl Methacrylate) Based Microporous Gel Electrolyte for Li-Ion Battery." Key Engineering Materials 336-338 (April 2007): 533–36. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.533.

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Preparation and performance of poly(acrylonitrile-methylmethacrylate) based microporous gel electrolyte for Li-ion batteries were studied. The poly(acrylonitrile-methyl methacrylate (P(AMMA)) was synthesized by suspension polymerization, and poly(acrylonitrile-methyl methacrylate) microporous polymer membrane with 0.03~0.1mm was prepared by phase inversion technique. The gel electrolyte was obtained by putting the P(AMMA) microporous polymer membrane in a liquid electrolyte, which was a solution of 1.0 M LiPF6 dissolved in a 1:1 (v/v) mixture of ethylene carbonate (EC) and diethylene carbonate

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30

Cao, Guo Min, Li Hui Zhang, Mei Sheng, and Yong Di Liu. "Biological Denitrification of Groundwater by a Composite Membrane Bioreactor." Advanced Materials Research 864-867 (December 2013): 2083–89. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.2083.

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A composite membrane bioreactor (CMBR) integrating the immobilized cell technique and the membrane separation technology was developed for biological denitrification of groundwater. In CMBR the groundwater and external carbon source (ethanol solution) are separated by the composite membranes consisting of a microporous membrane facing the groundwater and a plate-like immobilized cell membrane facing the ethanol solution. Nitrate and ethanol molecules diffused from the respective frames into the plate-like immobilized cell membrane where nitrate was reduced to gaseous nitrogen by the denitrifyi

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31

Pan, Jian, Changfa Xiao, Qinglin Huang, Hailiang Liu, and John Hu. "ECTFE porous membranes with conveniently controlled microstructures for vacuum membrane distillation." Journal of Materials Chemistry A 3, no. 46 (2015): 23549–59. http://dx.doi.org/10.1039/c5ta07629c.

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Poly(ethylene chlorotrifluoroethylene) (ECTFE) microporous membranes were prepared via a thermally induced phase separation (TIPS) process using a mixed diluent of bis(2-ethylhexyl) adipate (DEHA) and diethyl phthalate (DEP).

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32

Nakahama, Seiichi. "Preparation of Microporous membranes with Functional Groups." membrane 16, no. 5 (1991): 300–305. http://dx.doi.org/10.5360/membrane.16.300.

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33

Fazullin, D. D., L. I. Fazullina, G. V. Mavrin, I. G. Shaikhiev, and V. O. Dryakhlov. "Composite membranes with cellulose acetate surface layer for water treatment." Perspektivnye Materialy 2 (2021): 32–40. http://dx.doi.org/10.30791/1028-978x-2021-2-32-40.

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Microporous composite membranes containing from one to three ultrathin layers were obtained by multistage immersion of a paper base in a solution of cellulose acetate in acetone. The physicochemical properties of membranes have been studied and the parameters of membrane separation of heavy metal ions from tap water have been determined. An increase in the particle size and a decrease in the absolute value of the ζ-potential with an increase in the concentration of cellulose acetate in acetone were revealed. It was found that the porosity of the membranes increased from 47 % to 51 % depending

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34

Nakashima, T., M. Shimizu, and M. Kukizaki. "Membrane Emulsification by Microporous Glass." Key Engineering Materials 61-62 (January 1992): 513–16. http://dx.doi.org/10.4028/www.scientific.net/kem.61-62.513.

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35

Maryudi, Maryudi, Dhias Cahya Hakika, and Amillia Amillia. "Morphology and selected properties of cellulose acetate membranes for environmental applications." Polimery 69, no. 5 (2024): 292–99. http://dx.doi.org/10.14314/polimery.2024.5.2.

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Microporous membranes were obtained by dry-wet phase inversion from a solution of cellulose acetate (CA) in acetone (13, 14 and 15 wt%). Polyethylene glycol was used as a blowing agent. The structure and mechanical properties were examined. FT-IR spectra show that the addition of polyethylene glycol improves the thermodynamics of the solution and increases the hydrophilicity of the membrane. The SEM method confirmed the microporous structure of membranes with an asymmetric structure and various pore sizes and porosities. Higher CA concentration resulted in better tensile properties.

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36

Bünger, Lucas, Tim Kurtz, Krassimir Garbev, Peter Stemmermann, and Dieter Stapf. "Mixed-Matrix Organo–Silica–Hydrotalcite Membrane for CO2 Separation Part 2: Permeation and Selectivity Study." Membranes 14, no. 7 (2024): 156. http://dx.doi.org/10.3390/membranes14070156.

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This study introduces an innovative approach to designing membranes capable of separating CO2 from industrial gas streams at higher temperatures. The novel membrane design seeks to leverage a well-researched, high-temperature CO2 adsorbent, hydrotalcite, by transforming it into a membrane. This was achieved by combining it with an amorphous organo-silica-based matrix, extending the polymer-based mixed-matrix membrane concept to inorganic compounds. Following the membrane material preparation and investigation of the individual membrane in Part 1 of this study, we examine its permeation and sel

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37

Tsapatsis, Michael, and George R. Gavalas. "Synthesis of Porous Inorganic Membranes." MRS Bulletin 24, no. 3 (1999): 30–35. http://dx.doi.org/10.1557/s0883769400051885.

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Here we will attempt a brief overview of recent synthetic efforts for micropore and lower-end mesopore membranes. We will not address the very important classes of nonporous membranes, such as dense metals and solid electrolytes with applications in H2 and O2 separations, or meso- and macroporous membranes, which find applications in food processing and water treatment. Microporous materials provide high permselectivities for molecules encountered in the chemical-processing industry but suffer from low intrinsic permeabilities. Therefore, in order to bring microporous membrane materials to com

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38

Düregger, Katharina, Sina Trik, Stefan Leonhardt, and Markus Eblenkamp. "Additive-manufactured microporous polymer membranes for biomedical in vitro applications." Journal of Biomaterials Applications 33, no. 1 (2018): 116–26. http://dx.doi.org/10.1177/0885328218780460.

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Microscale porous membranes are used in a wide range of technical and medical applications such as water treatment, dialysis and in vitro test systems. A promising approach to control membrane properties and overcome limitations of conventional fabrication techniques is given by additive manufacturing (AM). In this study, we designed and printed a microporous membrane via digital light processing and validated its use for biomedical in vitro applications based on the example of a cell culture insert. A multi-layer technique was developed, resulting in an eight-layer membrane with an average po

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39

Hou, Jin, Jun Sheng Yuan, and Ru Shang. "Surface-Modified Zeolite-Filled Poly(piperazine-amide)/Polysulfone Composite Membrane for Potassium Extraction." Key Engineering Materials 531-532 (December 2012): 186–89. http://dx.doi.org/10.4028/www.scientific.net/kem.531-532.186.

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Polysulfone (PS) hollow fiber microporous membrane was used as substrate, the micropores of which were filled with surface-modified zeolites suspension on the outer surface by vacuum method, and then zeolite-filled poly(piperazine-amide)/PS hollow fiber composite membrane was synthesized on the substrate by interfacial polymerization reaction with piperazine (PIP) aqueous solution and trimesoyl chloride (TMC) n-hexane solution. The substrate membrane and synthetic composite membrane were characterized by scanning electron microscopy (SEM). A thin poly(piperazine-amide) active skin layer was sy

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40

Iversen, S. B., V. K. Bhatia, K. Dam-Johansen, and G. Jonsson. "Characterization of microporous membranes for use in membrane contactors." Journal of Membrane Science 130, no. 1-2 (1997): 205–17. http://dx.doi.org/10.1016/s0376-7388(97)00026-4.

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41

Mao, Yanli, Minjia Meng, Li Yan, Fengquan Sun, Yongsheng Yan, and Shijuan Liu. "Fabrication of highly selective molecularly imprinted membranes for the selective adsorption of methyl salicylate from salicylic acid." RSC Advances 6, no. 94 (2016): 91659–68. http://dx.doi.org/10.1039/c6ra17955j.

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Highly selective molecularly imprinted membranes for methyl salicylate were synthesized with 4-vinylpyridine, acrylamide or methacrylic acid as the functional monomer based on the Al<sub>2</sub>O<sub>3</sub> microporous ceramic membrane.

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Levy, R. A., E. S. Ramos, L. N. Krasnoperov, A. Datta, and J. M. Grow. "Microporous SiO2/Vycor membranes for gas separation." Journal of Materials Research 11, no. 12 (1996): 3164–73. http://dx.doi.org/10.1557/jmr.1996.0402.

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In this study, porous Vycor tubes with 40 Å initial pore diameter were modified using low pressure chemical vapor deposition (LPCVD) of SiO2. Diethylsilane (DES) in conjunction with O2 or N2O were used as precursors to synthesize the SiO2 films. Both “single side” (reactants flowing on the same side of porous membrane) and “counterflow” (reactants flowing on both sides of porous membrane) reactant geometries have been investigated. The flow of H2, He, N2, Ar, and toluene (C7H8) was monitored in situ after each deposition period. Membranes modified by the “single side” reactants geometry exhibi

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Morooka, Shigeharu, and Katsuki Kusakabe. "Microporous Inorganic Membranes for Gas Separation." MRS Bulletin 24, no. 3 (1999): 25–29. http://dx.doi.org/10.1557/s0883769400051873.

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Microporous inorganic membranes are potentially useful in gas separation in emerging areas such as catalytic reactors, gasification of coal, molten-carbonate and solid-electrolyte fuel cells, and water decomposition by thermochemical reactions. If the feed or product gases can be separated at elevated temperatures specific to each process, the energy required for purification could be greatly reduced. Advances in the development of inorganic membranes have been quite rapid in recent years. For example, in 1991 the reported CO2/N2 selectivity at ambient temperature was less than 10, but by 1997

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Salerno, Simona, Maria Penelope De Santo, Enrico Drioli, and Loredana De Bartolo. "Nano- and Micro-Porous Chitosan Membranes for Human Epidermal Stratification and Differentiation." Membranes 11, no. 6 (2021): 394. http://dx.doi.org/10.3390/membranes11060394.

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The creation of partial or complete human epidermis represents a critical aspect and the major challenge of skin tissue engineering. This work was aimed at investigating the effect of nano- and micro-structured CHT membranes on human keratinocyte stratification and differentiation. To this end, nanoporous and microporous membranes of chitosan (CHT) were prepared by phase inversion technique tailoring the operational parameters in order to obtain nano- and micro-structured flat membranes with specific surface properties. Microporous structures with different mean pore diameters were created by

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Yoshioka, Tomohisa. "Gas Permeation Properties through Ultra Microporous Inorganic Membranes." MEMBRANE 30, no. 4 (2005): 210–18. http://dx.doi.org/10.5360/membrane.30.210.

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Bell, C. M., K. Guo, and H. P. Wendel. "Endotoxin Removal from Albumin and Saline Solutions." International Journal of Artificial Organs 30, no. 7 (2007): 589–93. http://dx.doi.org/10.1177/039139880703000706.

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Microporous membranes have been developed which can remove endotoxins selectively from electrolyte and albumin solutions by regioselective adsorption in the membrane matrix and outside surface of the membrane. The membranes were prepared in the form of hollow fibre membranes in a continuous process. By varying the membrane preparation parameters, different pore sizes and adsorption capacities could be realized, thus broadening applications for biological purification. Dynamic adsorption capacities for endotoxin from albumin and saline solution were determined and were found to be in the range

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Guan, Yulong, Xiaowei Su, Robert McCoach, Robert Wise, Allen Kunselman, and Akif Ündar. "Evaluation of Quadrox-i® Adult Hollow Fiber Oxygenator with Integrated Arterial Filter." Journal of ExtraCorporeal Technology 42, no. 2 (2010): 134–38. http://dx.doi.org/10.1051/ject/201042134.

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Gaseous microemboli (GME) remain a challenge for cardiopulmonary bypass procedures in adult as well as pediatric cardiac surgery patients. The present study tested the effectiveness of a new adult membrane oxygenator in models both with and without an integrated arterial filter to evaluate GME trapping capability and determine membrane pressure drops at various flow rates and temperatures. The experimental circuit included a RotaFlow centrifugal blood pump, Quadrox-i® (n = 8) or Quadrox® (n = 8) adult microporous membrane oxygenator, and Sorin adult tubing package. A Sorin Cardiovascular® VVR®

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K. Pabby, Anil, and Pallavi Mahajan-Tatpate. "Hollow Fiber Contactors with Improved Hydrophobicity for Acid Gas Removal: Progress and Recent Advances." Journal of Applied Membrane Science & Technology 28, no. 2 (2024): 49–84. http://dx.doi.org/10.11113/amst.v28n2.296.

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The gas–liquid membrane contactor technology, which integrates the absorption process with membranes, is a developing membrane technology that is especially pertinent to acid gas absorption. When it comes to removing acid gases from natural gas or after combustion, membrane technology has demonstrated potential as a substitute for conventional absorption columns. The membrane contactor offers exceptional operating flexibility and a high mass transfer area. In addition to summarizing the key elements of membrane materials, absorbents, and membrane contactor design, this paper presents the worki

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Yan, Jiangyi, Lihong Nie, Guiliang Li, et al. "Graphene Oxide Modified Polyamide 66 Ultrafiltration Membranes with Enhanced Anti-Fouling Performance." Membranes 12, no. 5 (2022): 458. http://dx.doi.org/10.3390/membranes12050458.

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Improving the contamination resistance of membranes is one of the most effective ways to address the short service life of membranes. While preparing the membrane system structure, doping nanoparticles into the polymer matrix is beneficial to the preparation of high-performance membranes. To develop a new structure for membrane contamination protection, in this study, a novel asymmetric polyamide 66 composite ultrafiltration (UF) membrane was fabricated by incorporating different masses (ranging from zero to 0.5 wt.%) of graphene oxide (GO) into the polyamide 66 microporous substrate, using fo

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Alessandro, Francesca, Francesca Macedonio, and Enrico Drioli. "New Materials and Phenomena in Membrane Distillation." Chemistry 5, no. 1 (2023): 65–84. http://dx.doi.org/10.3390/chemistry5010006.

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In recent decades, membrane-based processes have been extensively applied to a wide range of industrial processes, including gas separation, food industry, drug purification, and wastewater treatment. Membrane distillation is a thermally driven separation process, in which only vapour molecules transfer through a microporous hydrophobic membrane. At the operational level, the performance of membrane distillation is negatively affected by wetting and temperature polarization phenomena. In order to overcome these issues, advanced membranes have been developed in recent years. This review, which

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