Micro-structured and self-assembled patterns in PLA-cast films as a function of CTAB content, magnesium and substratum hydrophobicity

Gallardo-Moreno, Amparo M.; Luque-Agudo, Verónica; González-Martı́n, M.L.; Hierro-Oliva, Margarita

doi:10.1016/j.apsusc.2022.153676

Cited by 5 publications

(12 citation statements)

References 51 publications

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“…A recently published study carried out by our research group showed in great detail the topography that appears on PLA films depending on the amount of CTAB contained in the film, the substrate on which it was cast and whether or not it contained magnesium [41]. The present study also works with those films degraded for 1 month and adds a longer degradation time of 3 months.…”

Section: Topography Of Pla Filmsmentioning

confidence: 53%

“…We observed in the previous work [41] that the topography of films fabricated on silicone was not affected by the single addition of Mg, that it was affected when this Mg was combined with CTAB, or the films were subjected to degradation. This observation was also evidenced when comparing 0/5 3 and 3/5 3 where a more uniform hole-like distribution appeared in the presence of Mg.…”

Section: • Magnesium Effectmentioning

confidence: 84%

“…A material that is initially smooth and not prone to bacterial adhesion may become rough after degradation, thus favoring adhesion. The process can be even more complex when the materials are loaded with active compounds: the degradation of such biomaterials assists in the progressive release of antibacterial dopants from the matrix, altering the response of the biomaterial to bacterial and cell adhesion [41].…”

Section: Introductionmentioning

confidence: 99%

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Bacterial Response to the Surface Aging of PLA Matrices Loaded with Active Compounds

et al. 2022

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The use of active components in biomaterials improves the properties of existing ones and makes it possible to obtain new devices with antibacterial properties that prevent infections after implantation, thus guaranteeing the success of the implant. In this work, cetyltrimethylammonium bromide (CTAB) and magnesium particles were incorporated into polylactic acid (PLA) films to assess the extent to which progressive aging of the new surfaces resists bacterial colonization processes. For this purpose, the films’ surface was characterized by contact angle measurements, ToF-SIMS and AFM, and adhesion, viability and biofilm growth of Staphylococcus epidermidis bacteria on these films were also evaluated. The results show that the inclusion of Mg and CTAB in PLA films changes their surface properties both before and after aging and also modifies bacterial adhesion on the polymer. Complete bactericidal activity is exhibited on non-degraded films and films with CTAB. This antibacterial behavior is maintained after degradation for three months in the case of films containing a higher amount of CTAB.

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Section: Topography Of Pla Filmsmentioning

confidence: 53%

Section: • Magnesium Effectmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

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Bacterial Response to the Surface Aging of PLA Matrices Loaded with Active Compounds

et al. 2022

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“…14 Excellent characteristics of biocomposites are extremely attractive for an industrial and biomedical applications. 15,16 Because of their potential in environmental and financial benefits for a wide range of applications, the development of entirely biodegradable composites consisting of natural fibers and biodegradable polymers, such as poly(butylene succinate) (PBS), has increased. 17 PBS is a biobased and biodegradable polymer synthesized by condensation polymerization of 1,4-butanediol and succinic acid, which are derived from renewable resource.…”

Section: Introductionmentioning

confidence: 99%

“…Presently, polylactic acid (PLA), a biodegradable polymer and fibers are used to reinforce the polymer composites 14 . Excellent characteristics of biocomposites are extremely attractive for an industrial and biomedical applications 15,16 …”

Section: Introductionmentioning

confidence: 99%

Multilayer biocomposites of PLA woven fabric and PBS sheets using compression molding process

Preechawattanasakul,

Pivsa‐Art,

Boonyod

et al. 2023

Polymer Composites

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Biocomposite materials play an important role to replace the conventional polymer composites in the issue of serious environmental problems from the end‐used products. The relationship between the design and construction of biocomposites structure and their properties is an important factor to the composite application. In this study, the biocomposites of poly(butylene succinate) (PBS) reinforced with poly(lactic acid) (PLA) woven fabric to improve mechanical properties of PBS matrix was fabricated by compression molding process. The plain weave PLA woven fabrics showed higher tensile strength (28.9%) and modulus (21.5%) than the twill 2/2 weave pattern. However, the flexural strength and modulus of composites reinforced with multi‐layers PLA woven fabric are higher than the one‐layer reinforcement (57% and 31%, respectively). The impact and peel strength of PLA twill 2/2 weave biocomposite are higher than the plain weaving. The mechanical property of matrix reinforced with plain structure was found to increase on the vertical axis while the twill weaving showed the increase on horizontal axis adhesion between the reinforced PLA woven fabric and the PBS matrix.

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A surface grafting strategy for antifouling/bioadhesive properties on a Janus-type polymeric thin film

Han,

Zhang,

Rao

et al. 2024

Applied Surface Science

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Micro-structured and self-assembled patterns in PLA-cast films as a function of CTAB content, magnesium and substratum hydrophobicity

Cited by 5 publications

References 51 publications

Bacterial Response to the Surface Aging of PLA Matrices Loaded with Active Compounds

Bacterial Response to the Surface Aging of PLA Matrices Loaded with Active Compounds

Multilayer biocomposites of PLA woven fabric and PBS sheets using compression molding process

A surface grafting strategy for antifouling/bioadhesive properties on a Janus-type polymeric thin film

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