Collagen film as a new pervaporation membrane

Maser, F.; Ströher-Glowienka, C.; Kimmerle, Klaus; Gudernatsch, W.

doi:10.1016/0376-7388(91)80020-7

Cited by 19 publications

(4 citation statements)

References 3 publications

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“…Because the optical properties of human connective tissue are similar to those of collagen when fully hydrated, synthetic type I collagen films are useful phantoms for medical and biological research. [1][2][3] Many spectroscopic investigations of absorption, reflectance, scattering, and transmission properties of human tissue, which primarily contains collagen, have been reported. [4][5][6][7][8][9][10][11] However, few measurement results of the refractive index (n) of collagen are known.…”

Section: Introductionmentioning

confidence: 99%

Group refractive index measurement of dry and hydrated type I collagen films using optical low-coherence reflectometry

Wang

1996

J. Biomed. Opt.

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The group refractive index and physical thickness of dry and hydrated type I collagen films are measured using optical low-coherence reflectometry. The average value for the group refractive index of dry and fully hydrated collagen films at o = 850 nm is, respectively, 1.53 Ϯ 0.02, and 1.43 Ϯ 0.02. The physical thickness of type I collagen films nearly doubles when going from the dry (56 m) to hydrated (118 m) state. Keywords reflectometry; hydrated type I collagen films; group refractive index.

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Section: Introductionmentioning

confidence: 99%

Group refractive index measurement of dry and hydrated type I collagen films using optical low-coherence reflectometry

Wang

1996

J. Biomed. Opt.

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“…Collagen fibers and fibrils obtained from bovines have been used by Maser et al 242 to produce crosslinked hydrophilic membranes used in PV. The pervaporative performances of these membranes were evaluated for the dehydration of ethanol, isopropanol, ethylene glycol and acetone.…”

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confidence: 99%

Advances in biopolymer-based membrane preparation and applications

Galiano

Briceño

Marino

et al. 2018

Journal of Membrane Science

289

166

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“…125 Collagen-based membranes are widely studied in tissue engineering, because of low immune response, which can be used as a substrate or scaffold for cell attachment, proliferation, and differentiation. 126−128 Other collagen-based membrane applications include pervaporation 129,130 and oil/water separation, 125,131 but studies have been limited because collagen-based membranes biodegrade rapidly and are sensitive to extreme pH and high-temperature conditions. Moreover, collagen generally fails to achieve desired mechanical characteristics, since it is unable to retain its structural integrity and because of swelling in aqueous environments.…”

Section: Manufacturingmentioning

confidence: 99%

“…Other collagen-based membrane applications include pervaporation , and oil/water separation, , but studies have been limited because collagen-based membranes biodegrade rapidly and are sensitive to extreme pH and high-temperature conditions. Moreover, collagen generally fails to achieve desired mechanical characteristics, since it is unable to retain its structural integrity and because of swelling in aqueous environments …”

Section: Biobased Polymers For Membrane Manufacturingmentioning

confidence: 99%

Toward the Next Generation of Sustainable Membranes from Green Chemistry Principles

Xie

Tiraferri

et al. 2020

ACS Sustainable Chem. Eng.

130

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Large-scale membrane technology has been widely implemented and rapidly growing for roughly 40 years. However, considering its entire life cycle, there are aspects being characterized by low sustainability, and this industry certainly cannot be defined as green. In the membrane manufacturing process, raw materials mainly rely on nonbiodegradable petroleum-based polymers and hazardous solvents. These materials are thus associated with the energy crisis and with disposal burdens at the end of their lifetime, and they pose risks to workers and the environment. Therefore, biobased polymers and green solvents should be employed within the membrane preparation process and replace traditional ones. Moreover, the wastewater generated from membrane fabrication processes contains an important amount of organic solvents and should be efficiently treated or recycled before discharge. The application of artificial intelligence in membrane manufacturing and use processes can also improve efficiency significantly. Finally, a large number of spent membrane elements should also be reused and recovered, rather than landfilled. This review critically evaluates the recent advances in methods to improve the sustainability of membrane technology, specifically emphasizing the progresses made, with regard to the above aspects. This review thus analyzes the needs for membrane industry transformations in the light of circular economy.

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Collagen film as a new pervaporation membrane

Cited by 19 publications

References 3 publications

Group refractive index measurement of dry and hydrated type I collagen films using optical low-coherence reflectometry

Group refractive index measurement of dry and hydrated type I collagen films using optical low-coherence reflectometry

Advances in biopolymer-based membrane preparation and applications

Toward the Next Generation of Sustainable Membranes from Green Chemistry Principles

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