Advances in biopolymer-based membrane preparation and applications

Galiano, Francesco; Briceño, Kelly; Marino, Tiziana; Molino, Antonio; Christensen, Knud Villy; Figoli, Alberto

doi:10.1016/j.memsci.2018.07.059

Cited by 291 publications

(185 citation statements)

References 234 publications

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“…Biocompatible, biodegradable, and edible biomaterials like protein have received a great deal of attention in wound dressing, scaffolds, and the food industry recently [1,2]. Collagen, among the potential biomaterials, is an abundant fibrous protein, which accounts for 30% of all vertebrate bodies and provides structural integrity in connective tissues [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Application of a Dehydrothermal Treatment on the Structure and the Mechanical Properties of Collagen Film

Chen

Zhou

et al. 2020

Materials

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Dehydrothermal (DHT) treatment was used to improve the properties of collagen casings because of its non-cytotoxicity. Understanding the effects of DHT treatment on the structure and mechanical properties of collagen films is beneficial to developing satisfying collagen casings. Herein, DHT treatment with various temperatures (85–145 °C) and timescales (1–7 days) were investigated. It was clarified that the chemical crosslinking covalent bond between collagen molecules was formed after the DHT treatment. Crosslinking density increased with increasing DHT treatment temperatures, contributing to the increase of tensile strength up to over three times of that of the untreated collagen film. The increased crosslinking density was also found when increasing the DHT treatment time, and the maximum was obtained in 3 days. Further DHT treatment time did not change the crosslinking density. The damage in the triple helix structure and the self-assembly of collagen molecules were observed from IR and SAXS. The extent of denaturation increased with increasing DHT treatment temperature and time, although the effect of the DHT treatment time on the denaturation was more moderate. When the DHT treatment temperature was as high as 145 °C or the DHT treatment time exceeded 5 days, serious denaturation occurs, leading to the deterioration of mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Effect of the Application of a Dehydrothermal Treatment on the Structure and the Mechanical Properties of Collagen Film

Chen

Zhou

et al. 2020

Materials

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“…The potential of polymeric membranes applied in GS has attracted particular scientific interest . Among a huge number of polymers that have been studied, poly‐lactic acid (PLA) was recently proposed as a polymeric membrane material, although its common applications ranged from biomedical and pharmaceutical to the packaging industry . It is a renewable polymer coming from specifically starch‐enriched products like sugar beet, corn, and wheat .…”

Section: Introductionmentioning

confidence: 99%

“…5,8,9 Among a huge number of polymers that have been studied, poly-lactic acid (PLA) was recently proposed as a polymeric membrane material, 10 although its common applications ranged from biomedical and pharmaceutical to the packaging industry. [11][12][13] It is a renewable polymer coming from specifically starch-enriched products like sugar beet, corn, and wheat. 11 The advantages of PLA utilization in a polymeric membrane had already been demonstrated in organic / organic separation by pervaporation and other applications.…”

Section: Introductionmentioning

confidence: 99%

“…[11][12][13] It is a renewable polymer coming from specifically starch-enriched products like sugar beet, corn, and wheat. 11 The advantages of PLA utilization in a polymeric membrane had already been demonstrated in organic / organic separation by pervaporation and other applications. 11,14,15 More recently, a novel application of PLA membranes in the field of hydrogen separation from other gases at room temperature was noticed, and interesting results were reached in terms of H 2 /CO 2 selectivity versus H 2 permeability, overcoming the related Robeson's upper bound.…”

Section: Introductionmentioning

confidence: 99%

“…11 The advantages of PLA utilization in a polymeric membrane had already been demonstrated in organic / organic separation by pervaporation and other applications. 11,14,15 More recently, a novel application of PLA membranes in the field of hydrogen separation from other gases at room temperature was noticed, and interesting results were reached in terms of H 2 /CO 2 selectivity versus H 2 permeability, overcoming the related Robeson's upper bound. 10 In this work, a PLA-based polymer (PLA Easy Fil TM -White, a kind of modification of the PLA based polymer), usually applied as a component of 3D-printer filaments, was proposed for membrane preparation and utilization in gas separation.…”

Section: Introductionmentioning

confidence: 99%

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PLA Easy Fil – White‐based membranes for CO₂ separation

Iulianelli¹,

Russo²,

Galiano³

et al. 2019

Greenhouse Gases

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Polymeric membrane technology applied to gas separation is seen as a valuable alternative to conventional systems due to its ease integrability with existing plant, its lower energy consumption, and its flexibility when scaling up. It constitutes a cheaper solution because, in accordance with the principles of process intensification strategy, realized with a reduced number of stages process. In this work, for the first time, a modified polylactic acid‐based polymer (PLA Easy Fil™ – White) was used to synthesize polymeric membranes for use in CO2 separation. This has the further advantage of adopting a biodegradable and non‐toxic material and environmental friendly. Dense symmetric PLA Easy Fil™ – White membranes (average thickness ∼ 27 μm) were prepared and characterized in terms of differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and Fourier‐transform infrared (FTIR) analyses and in single gas permeation tests to determine their perm‐selectivity at room temperature in the particular field of CO2/CH4 separation as an example of CO2 removal from raw natural gas or biogas. A CO2/CH4 ideal selectivity equal to 285 (corresponding to a CO2 permeability of 70 barrer) was obtained, overcoming the related Robeson's upper bound. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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