Fabricación de filamentos de PCL y PVA reforzados con HAp para ser usados en impresión 3D

Guillén-Girón, Teodolíto

doi:10.18845/tm.v31i2.3624

Cited by 2 publications

(3 citation statements)

References 19 publications

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“…The X‐ray diffractograms in Figure 7 allow us to evaluate the crystallinity of the films where amorphous and C crystalline zones in monolayer films, except for PLA films, show broad zones characteristic of amorphous polymers. The polymer with the highest crystallinity is PCL, with 25.45% and crystalline peaks of great intensity ty and very well defined at 21.66° and 24.1° at 2θ, values like those obtained by Guillén‐Girón (2018).…”

Section: Resultssupporting

confidence: 66%

Biodegradable monolayer film based on the collagen extracted from Oreochromis sp. processing byproducts blended with chitosan and assembled with PCL and PLA monolayers to form bilayers films

Navarro Arrieta,

Acevedo‐Puello,

Fuentes Ordoñez

et al. 2024

J Food Process Engineering

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The objective of the study is to develop and characterize biodegradable monolayer and bilayer films using collagen extracted from tilapia skin and scales (Oreochromis sp.) with chitosan in combination with biodegradable polyester; polylactic acid (PLA) or polycaprolactone (PCL). Collagen extraction was conducted with acetic acid (0.5 M). Monolayer films based on collagen and chitosan were formed by the casting process with a solution of chitosan (2% w/w) in 1.5% acetic acid, followed by the addition of skin collagen at concentrations of 0.5%, 1%, or 2% w/w, and dried at 45–50°C. The PLA and PCL films were made by compression molding. The films were characterized according to their appearance, structure, morphology, interaction with water, thermal stability, and mechanical and barrier properties. The results indicated that collagen from tilapia skin and scales yielded 36.5% and 2.57%, respectively. The results showed that adding chitosan increased the tensile strength but decreased the elongation of the films. An improvement in thermal stability was observed by increasing the proportion of collagen or chitosan, and it also influenced water solubility and water vapor permeability. Microscopy showed a crack‐free interface between collagen and chitosan. The color of the films varied depending on the composition, highlighting the influence of chitosan in yellow and reddish tones. The bilayers with PLA had lower water vapor permeability and higher gloss compared to those with PCL. Finally, the developed films showed promising properties for their application in food packaging and promote the use of fishery waste.Practical applicationsThe study aims to develop and characterize biodegradable monolayer and bilayer films using collagen extracted from tilapia skin and scales (Oreochromis sp.) combined with chitosan and biodegradable polyester such as polylactic acid or polycaprolactone. The practical applications of this research span a wide range of industrial fields. For instance, monolayer films could be used as sustainable food packaging, offering enhanced barrier properties and biodegradability, thus reducing the environmental impact of conventional packaging. Furthermore, bilayer films could find applications in the healthcare industry, such as controlled‐release drug patches or dressings leveraging the antimicrobial properties of chitosan. This research also provides valuable insights into improving the mechanical, thermal, and barrier properties of biodegradable films, potentially leading to the production of more efficient and versatile materials for a variety of industrial applications.

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Section: Resultssupporting

confidence: 66%

Biodegradable monolayer film based on the collagen extracted from Oreochromis sp. processing byproducts blended with chitosan and assembled with PCL and PLA monolayers to form bilayers films

Navarro Arrieta,

Acevedo‐Puello,

Fuentes Ordoñez

et al. 2024

J Food Process Engineering

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“…The infrared spectra corresponding to the PCL-based materials are shown in Figure , in this case normalized to the carbonyl stretching band at 1721 cm –1 . The asymmetric and symmetric C–H stretching vibrations of the methylene groups appear at 2942 and 2865 cm –1 , respectively, , together with the asymmetric and symmetric stretching of the C–O–C group, at 1242 and 1167 cm –1 , respectively. , …”

Section: Resultsmentioning

confidence: 98%

“…Regarding the presence of solvents in the blow spun PEO, neither the characteristic band at 665 The infrared spectra corresponding to the PCL-based materials are shown in Figure 3, in this case normalized to the carbonyl stretching band at 1721 cm −1 . The asymmetric and symmetric C−H stretching vibrations of the methylene groups appear at 2942 and 2865 cm −1 , respectively, 43,44 together with the asymmetric and symmetric stretching of the C−O−C group, at 1242 and 1167 cm −1 , respectively. 44,45 As in the case of PEO, the lack of significant changes in the position or relative intensities of the bands indicates that the rotational speed of the collector does not modify the conformation of the PCL chains and that the chloroform is fully evaporated during the formation of the fibers in the SBS process.…”

Section: Resultsmentioning

confidence: 99%

Solution Blow Spun Poly(ethylene oxide)/Poly-ε-caprolactone System: Properties and Dissolution in Water

Lorente

González‐Gaitano

Valero

et al. 2023

ACS Appl. Polym. Mater.

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In the present work, fibrous materials based on poly(ethylene oxide) (PEO), poly-ε-caprolactone (PCL), and a mixture of them (PEO/PCL) have been prepared by solution blow spinning (SBS). The rotation speed of the collector of the SBS device (500, 1000, 1500, 2000, 2500, and 3000 rpm) has been chosen as the processing variable to modify the materials’ morphologies. The structures of the polymer systems have been evaluated by attenuated total reflectance Fourier transformed infrared spectroscopy and X-ray diffraction, and the morphologies have been inspected by field emission scanning electron microscopy, while thermal and mechanical behaviors have been studied by differential scanning calorimetry and tensile tests, respectively. Dissolution in water has been monitored by optical microscopy and video recording. As a proof of concept, the capacities of the systems under study to release a model drug have been tested by loading the materials with silver(I) sulfadiazine (SSD) and then immersing them in a buffer solution and monitoring the process through the intrinsic fluorescence of SSD. Our results indicate that there are no changes at the molecular level, but there is a change in the morphology of the material as a function of the rotation speed of the collector. These morphological variations, together with the composition of the system, affect the mechanical behavior of the material, the dissolution process in water, and the drug release. These factors are relevant if the blow spun material is intended for biomedical applications in which an active agent has to be released in a controlled manner.

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Fabricación de filamentos de PCL y PVA reforzados con HAp para ser usados en impresión 3D

Cited by 2 publications

References 19 publications

Biodegradable monolayer film based on the collagen extracted from Oreochromis sp. processing byproducts blended with chitosan and assembled with PCL and PLA monolayers to form bilayers films

Biodegradable monolayer film based on the collagen extracted from Oreochromis sp. processing byproducts blended with chitosan and assembled with PCL and PLA monolayers to form bilayers films

Solution Blow Spun Poly(ethylene oxide)/Poly-ε-caprolactone System: Properties and Dissolution in Water

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