Electrospun polylactic acid non-woven mats incorporating silver nanoparticles

Vargas-Villagrán, H.; Romo-Uribe, Ángel; Teran-Salgado, Elvia; Domínguez-Díaz, Maraolina; Flores, A.

doi:10.1007/s00289-014-1200-8

Cited by 18 publications

(5 citation statements)

References 41 publications

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“…Thermograms of neat PLA and BC/PLA nanocomposites before and after incorporation of lipids are shown in Figure 5 . The observed glass transition ( T g ) and melting ( T m ) temperatures of electrospun PLA are in line to those reported by other authors [ 30 , 32 , 33 ]. Furthermore, an enthalpic endothermic relaxation can be observed at around 63 °C due to the rapid solidification rate during electrospinning, followed by a cold crystallization exothermic event at 94 °C.…”

Section: Resultssupporting

confidence: 92%

In Situ Self-Assembled Nanocomposites from Bacterial Cellulose Reinforced with Eletrospun Poly(lactic acid)/Lipids Nanofibers

Xiang

Acevedo

2017

Polymers

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Abstract:The goal of this study is to explore a new strategy to improve the mechanical and hydrophobic properties of bacterial cellulose (BC) mats. The present work is the first to report the preparation of in situ self-assembled BC nanocomposites using electrospun hydrophobic poly(lactic acid) (PLA) or PLA/lipids (PLA/Lip) nanofiber mats as foundation for BC nanofiber growth. Adding electrospun PLA mats to the BC culture media led to a two-fold increase in toughness with a 52% increase in elongation of the nanocomposites with regard to BC. The incorporation of electrospun PLA and PLA/Lip nanofiber mats lowered the moisture regain and water vapor transmission of BC nanocomposites relative to pure BC mats. The interfacial bonding between the individual components of a nanocomposite is a key factor for the improvement of composite strength, stiffness, and barrier properties; thus additional strategies to improve interaction between hydrophilic BC and hydrophobic PLA fibers need to be explored.

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Section: Resultssupporting

confidence: 92%

In Situ Self-Assembled Nanocomposites from Bacterial Cellulose Reinforced with Eletrospun Poly(lactic acid)/Lipids Nanofibers

Xiang

Acevedo

2017

Polymers

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“…Currently there is a trend to add AgNO3 as a precursor of nano-Ag since this salt is easily solubilized in polar solvents typically used for electrospinning, thus increasing the electrical conductivity. As expected, the presence of Ag + ions strongly affects the final morphology of fibers: at low concentration (< 8%) average fiber diameter is generally reduced, and on the contrary, at high concentration (> 8%) the agglomeration of Ag species promotes phase segregation, thus increasing the average fiber diameter [65][66][67][68].…”

Section: Metallic Nanoparticlesmentioning

confidence: 77%

Comprehensive review on electrospinning techniques as versatile approaches toward antimicrobial biopolymeric composite fibers

Rodríguez-Tobías¹,

Morales²,

Grande

2019

Materials Science and Engineering: C

155

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Electrospun (bio)polymeric fibers have attracted widespread interest as functional materials with suitable morphology and properties for their use as tissue engineering scaffolds and/or wound dressings. The fibrous/porous morphology of this type of materials promotes the adhesion and proliferation of tissue cells, but on the other hand, pathogenic microorganisms unfortunately can also be attached to the fibers, thus leading to serious infections and consequently to the immediate removal of the scaffolds or wound dressings, which may imply greater tissue damage. In this context, this review addresses the more recent approaches based on electrospinning and related techniques for developing composite (bio)polymeric fibers with tailored antimicrobial properties either by using mere electrospinning for the incorporation of well-defined antimicrobial nanoparticles (silver, gold, titanium dioxide, zinc oxide, copper oxide, etc.) or by resorting to the combination of electrospraying and electrospinning for the generation of nanoparticle-coated fibers, as well as coaxial electrospinning for obtaining fibers with nanoparticle-rich surface.

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“…It is known, as well, that enhanced hydrophilicity promotes better adsorption of certain proteins and osteoblastic differentiation and maturation of human bone mesenchymal stem cells [25], and the aim of the manuscript is to use the new deposited coating to switch adhesion controlling the chemical composition and structural roughness. To the best of our knowledge, our experimental conditions, characterization of the PLA coating and resulting data presented in this manuscript are different than other previously published articles about the produced effect of the PLA layer on contact angle [26], adhesion to metal oxides [27] and corrosion process [28]. Having in mind the present trends of development in using TiZr, a more performant alloy than other Ti systems, the subject is worthy of investigation and dissemination, especially compared to other TiZr treatments.…”

Section: Introductionmentioning

confidence: 60%

Characterization of Three Surface Treatments on TiZr—Coating Properies and Corrosion Behavior

et al. 2021

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Titanium implants remain a reliable treatment for patients in need of restorative orthopedic and oral cavity works due to their high flexibility in manufacturing. Multiple strategies for improving Ti implants have been successfully tested and employed including alloying and surface coatings. Polylactic acid (PLA) based nanofibers can be interesting due to their large surface-to-volume ratio and ability to interact with large volumes of other substances. This paper offers an in-depth characterization of a nanofibrous PLA coating obtained by electrospinning on TiZr oxide. Analyses include morphology characterization, investigation of forces present on the surface, and the observation of the evolution of the coatings immersed in two bioelectrolytes.

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Electrospun polylactic acid non-woven mats incorporating silver nanoparticles

Cited by 18 publications

References 41 publications

In Situ Self-Assembled Nanocomposites from Bacterial Cellulose Reinforced with Eletrospun Poly(lactic acid)/Lipids Nanofibers

In Situ Self-Assembled Nanocomposites from Bacterial Cellulose Reinforced with Eletrospun Poly(lactic acid)/Lipids Nanofibers

Comprehensive review on electrospinning techniques as versatile approaches toward antimicrobial biopolymeric composite fibers

Characterization of Three Surface Treatments on TiZr—Coating Properies and Corrosion Behavior

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