Preparation, Structure, and Properties of Track-Etched Membranes Based on Polylactic Acid

Иванова, Н. М.; Filippova, E. O.; Tverdokhlebov, S. I.; Levkovich, N. V.; Apel, P. Yu.

doi:10.1134/s2517751621050073

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…In the ion-track etching method, a membrane can be obtained by irradiating a film with heavy ions forming ion tracks and leading to pore formation [ 108 , 109 ]. The films used for irradiation have been made of polymers, such as polycarbonate (PC), polyethylene terephthalate (PET), polyimide (PI), polypropylene (PP), polyethylene naphthalate (PEN) and also biodegradable polymers, such as polylactic acid (PLA), which are used as a polymer matrix to create track-etched membranes [ 110 , 111 , 112 , 113 , 114 , 115 ]. Ivanova et al [ 115 ] reported the preparation of a biodegradable membrane based on PLA via the ion-track etching method.…”

Section: Biomedical Applications Of Membranesmentioning

confidence: 99%

“…The films used for irradiation have been made of polymers, such as polycarbonate (PC), polyethylene terephthalate (PET), polyimide (PI), polypropylene (PP), polyethylene naphthalate (PEN) and also biodegradable polymers, such as polylactic acid (PLA), which are used as a polymer matrix to create track-etched membranes [ 110 , 111 , 112 , 113 , 114 , 115 ]. Ivanova et al [ 115 ] reported the preparation of a biodegradable membrane based on PLA via the ion-track etching method. The pore size of the obtained biodegradable membrane was reported between 0.6 to 1.5 μm with a shape close to cylindrical.…”

Section: Biomedical Applications Of Membranesmentioning

confidence: 99%

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Polymeric Membranes for Biomedical Applications

2023

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Polymeric membranes are selective materials used in a wide range of applications that require separation processes, from water filtration and purification to industrial separations. Because of these materials’ remarkable properties, namely, selectivity, membranes are also used in a wide range of biomedical applications that require separations. Considering the fact that most organs (apart from the heart and brain) have separation processes associated with the physiological function (kidneys, lungs, intestines, stomach, etc.), technological solutions have been developed to replace the function of these organs with the help of polymer membranes. This review presents the main biomedical applications of polymer membranes, such as hemodialysis (for chronic kidney disease), membrane-based artificial oxygenators (for artificial lung), artificial liver, artificial pancreas, and membranes for osseointegration and drug delivery systems based on membranes.

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Section: Biomedical Applications Of Membranesmentioning

confidence: 99%

Section: Biomedical Applications Of Membranesmentioning

confidence: 99%

Polymeric Membranes for Biomedical Applications

2023

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Recent Developments and Perspectives of Recycled Poly(ethylene terephthalate)-Based Membranes: A Review

et al. 2022

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Post-consumer poly(ethylene terephthalate) (PET) waste disposal is an important task of modern industry, and the development of new PET-based value added products and methods for their production is one of the ways to solve it. Membranes for various purposes, in this regard are such products. The aim of the review, on the one hand, is to systematize the known methods of processing PET and copolyesters, highlighting their advantages and disadvantages and, on the other hand, to show what valuable membrane products could be obtained, and in what areas of the economy they can be used. Among the various approaches to the processing of PET waste, we single out chemical methods as having the greatest promise. They are divided into two large categories: (1) aimed at obtaining polyethylene terephthalate, similar in properties to the primary one, and (2) aimed at obtaining copolyesters. It is shown that among the former, glycolysis has the greatest potential, and among the latter, destruction followed by copolycondensation and interchain exchange with other polyesters, have the greatest prospects. Next, the key technologies for obtaining membranes, based on polyethylene terephthalate and copolyesters are considered: (1) ion track technology, (2) electrospinning, and (3) non-solvent induced phase separation. The methods for the additional modification of membranes to impart hydrophobicity, hydrophilicity, selective transmission of various substances, and other properties are also given. In each case, examples of the use are considered, including gas purification, water filtration, medical and food industry use, analytical and others. Promising directions for further research are highlighted, both in obtaining recycled PET-based materials, and in post-processing and modification methods.

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3D Printing of High-Porosity Membranes with Submicron Pores for Microfluidics

Hoskins,

Zou

2024

Nanomanufacturing

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In this study, we investigate the potential of two-photon lithography (2PL) as a solution to the challenges encountered in conventional membrane fabrication techniques, aiming to fabricate tailor-made membranes with high-resolution submicron pore structures suitable for advanced applications. This approach led to the development of fabrication techniques and printed membranes that can be adapted to various lab-on-a-chip (LOC) devices. Membranes were fabricated with pore diameters as small as 0.57 µm and porosities of 4.5%, as well as with larger pores of approximately 3.73 µm in diameter and very high porosities that reached up to 60%. Direct 3D printing of membranes offers a pathway for fabricating structures tailored to specific applications in microfluidics, enabling more efficient separation processes at miniature scales. This research represents a significant step towards bridging the gap between membrane technology and microfluidics, promising enhanced capabilities for a wide array of applications in biotechnology, chemical analysis, and beyond.

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Preparation, Structure, and Properties of Track-Etched Membranes Based on Polylactic Acid

Cited by 3 publications

References 22 publications

Polymeric Membranes for Biomedical Applications

Polymeric Membranes for Biomedical Applications

Recent Developments and Perspectives of Recycled Poly(ethylene terephthalate)-Based Membranes: A Review

3D Printing of High-Porosity Membranes with Submicron Pores for Microfluidics

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