Mechanical, thermal, and morphological properties of natural rubber/45S5 Bioglass® fibrous mat with ribbon-like morphology produced by solution blow spinning

Sousa, Eliraldrin Amorin; Silva, Michael J.; Sanches, Adhemar; Soares, Viviane Oliveira; Job, Aldo Eloízo; Malmonge, José Antônio

doi:10.1016/j.eurpolymj.2019.07.002

Cited by 12 publications

(25 citation statements)

References 44 publications

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“…The mass loss below at 100°C can be attributed to water evaporation. The TGA profile of NR matrix reveals that a single main event of mass loss occurred in the 250 to 450°C temperature range corresponding to the structural decomposition of poly(cis‐isoprene) of NR molecules 34,64 . The mass loss due to this main event was about 90.3%.…”

Section: Resultsmentioning

confidence: 98%

“…The TGA profile of NR matrix reveals that a single main event of mass loss occurred in the 250 to 450 C temperature range corresponding to the structural decomposition of poly(cis-isoprene) of NR molecules. 34,64 The mass loss due to this main event was about 90.3%. Decomposition of non-rubber components, such as fatty acids, produces a small peak between 150 and 280 C, where 6.5% of the mass was lost.…”

Section: Thermal Analysismentioning

confidence: 92%

“…Among the natural polymers that have been used as supports for BGs particles, natural rubber (NR), cellulose nanowhiskers (CNWs), chitosan and polyhydroxybutyrate (PHB) can be highlighted 26–33 . Among natural polymers, NR deserves special attention for its excellent mechanical properties, thermal stability, and biomedical properties 34,35 . This high‐molecular‐weight biopolymer is extracted in the form of latex, mainly from rubber trees ( Hevea brasiliensis ) and it is composed of isomeric units of the cis‐1,4‐isoprene type 36,37 .…”

Section: Introductionmentioning

confidence: 99%

“…[26][27][28][29][30][31][32][33] Among natural polymers, NR deserves special attention for its excellent mechanical properties, thermal stability, and biomedical properties. 34,35 This high-molecular-weight biopolymer is extracted in the form of latex, mainly from rubber trees (Hevea brasiliensis) and it is composed of isomeric units of the cis-1,4-isoprene type. 36,37 Characteristics such as elasticity, flexibility, and resilience of NR make it one of the most used polymers in the world.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of tensile, thermal, and biological properties of natural rubber‐based biocomposite with biosilicate and 45S5‐K bioglass

Lima

Caetano

Soares

et al. 2023

J of Applied Polymer Sci

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The objective of this work was to develop new NR‐based biocomposite containing BioS and/or BL0 particles, which exhibit better tensile response, biocompatibility, and bioactivity for biomedical applications. Morphological, tensile, thermal, and biological tests were performed on the biocomposites to evaluate the influence of BioS and BL0 particles on the properties of the NR matrix. According to TG/DTG tests, the decomposition profiles of the NR/BioS and NR/BL0 biocomposites were similar to those of NR, whose main event could be seen in the 290–450°C temperature range, indicative of NR's structural degradation. Tensile analysis demonstrated that the addition of BioS or BL0 to the NR‐based biocomposite improved the elastic modulus and the tensile strength at break (σat break) in comparison to NR. The σat break value of the NR matrix increased from 0.99 ± 0.06 MPa to 1.84 ± 0.09 and 2.29 ± 0.04 MPa for the NR/BioS and NR/BL0 specimens with 30 wt%. Indirect cytotoxicity testing revealed that NR, NR/BL0, and NR/BioS biocomposite specimens promote the attachment of MSCs cell, that is, greater than 70% viability as defined in ISO 10993‐5:2009. The results indicate that BioS and BL0 particles have improved the tensile response and biological properties of the NR matrix, resulting in a range of potential biomedical applications.

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Section: Resultsmentioning

confidence: 98%

Section: Thermal Analysismentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of tensile, thermal, and biological properties of natural rubber‐based biocomposite with biosilicate and 45S5‐K bioglass

Lima

Caetano

Soares

et al. 2023

J of Applied Polymer Sci

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“…45S5 glass has been extensively studied in recent decades and is being processed with different dimensionalities and for various purposes. In the form of particles, it has been incorporated in glass ionomer cements, which has enhanced their mechanical and remineralizing properties [6], or it has been dispersed in natural rubber fibers, leading to hybrid membranes with good thermal and mechanical properties [7]. Deposited as coatings, 45S5 bioglass has increased the corrosion resistance of Ti6Al4V alloy [8], while, as scaffolds coated with dual Mg-Zn-loaded hydroxyapatite nanoparticles, it has shown enhanced biological performance [9].…”

Section: Introductionmentioning

confidence: 99%

Pulsed Laser Deposition Derived Bioactive Glass-Ceramic Coatings for Enhancing the Biocompatibility of Scaffolding Materials

et al. 2020

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The purpose of this work was to propose and evaluate a new composition for a bioactive glass-ceramic starting from the well-known 45S5 commercial product. Thus, we developed a modified version, including MgO, an oxide that turned out to induce superior mechanical properties and improved biological response. This had the following molar percentages: 46.1% SiO2, 2.6% P2O5, 16.9% CaO, 10.0% MgO, and 24.4% Na2O. The precursor alkoxides and nitrates were processed by a standard sol-gel technique, resulting in a glass-ceramic target, suitable for laser ablation experiments. Combeite (Na2Ca2Si3O9) was identified as a main crystalline phase within the calcined sol-gel powder, as well as in the case of the target sintered at 900 °C. The thin films were deposited on silicon substrates, at room temperature or 300 °C, being subsequently characterized from the material point of view, as well as in terms of bioactivity in simulated conditions and biocompatibility in relation to human fibroblast BJ cells. The investigations revealed the deposition of nanostructured glassy layers with a low proportion of crystalline domains; it was shown that a higher substrate temperature promoted the formation of surfaces with less irregularities, as a consequence of material arrangement into a shell with better morphological homogeneity. The complex elemental composition of the target was successfully transferred to the coatings, which ensured pronounced mineralization and a stimulating environment for the cell cultures. Thereby, both samples were covered with a thick layer of apatite after immersion in simulated body fluid for 28 days, and the one processed at room temperature was qualified to be the best in relation to the cells.

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Three‐phase bio‐nanocomposite natural‐rubber‐based microfibers reinforced with cellulose nanowhiskers and 45S5 bioglass obtained by solution blow spinning

Silva,

Dias,

Zaszczyńska

et al. 2023

J of Applied Polymer Sci

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Aiming at biomedical applications, the present work developed a new bio‐nanocomposite fibrous mat based on natural rubber (NR) reinforced with 45S5 bioglass particles (BG) and cellulose nanowhiskers (CNW), which reveals excellent mechanical properties, good biocompatibility and bioactivity properties. Analyses of the specimens were conducted by means of morphological observations (SEM) and thermal analysis (TG/DTG), as well as mechanical tests used to verify the effect of the incorporation of BG particles and CNW on the ultimate properties of these flexible NR‐CWN/BG fibrous membranes. An SEM analysis revealed that all filaments possessed a ribbon‐like morphology, with increasing diameters as the BG concentration increased. This likely results from an increased viscosity of the solution used for fiber blowing. In comparison with neat NR fibrous mats, the ultimate mechanical properties of bio‐nanocomposites were significantly improved due to the presence of CNW and BG particles dispersed in the NR matrix. According to the TG/DTG analysis, the specimens' thermal stability was unaffected by the high BG content, and the thermal profiles were similar, with isoprene chains decomposition of the NR occurring between 350 and 450°C. In‐vitro analysis on fibroblasts confirmed that the bio‐nanocomposite fibrous mats are noncytotoxic. It was found that fibrous mats enhanced cellular growth and hold great promise for tissue engineering applications.

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Mechanical, thermal, and morphological properties of natural rubber/45S5 Bioglass® fibrous mat with ribbon-like morphology produced by solution blow spinning

Cited by 12 publications

References 44 publications

Evaluation of tensile, thermal, and biological properties of natural rubber‐based biocomposite with biosilicate and 45S5‐K bioglass

Evaluation of tensile, thermal, and biological properties of natural rubber‐based biocomposite with biosilicate and 45S5‐K bioglass

Pulsed Laser Deposition Derived Bioactive Glass-Ceramic Coatings for Enhancing the Biocompatibility of Scaffolding Materials

Three‐phase bio‐nanocomposite natural‐rubber‐based microfibers reinforced with cellulose nanowhiskers and 45S5 bioglass obtained by solution blow spinning

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