Strongly polarized light from highly aligned electrospun luminescent natural rubber fibers

Faita, Fabrício Luiz; Tuzimoto, Patricia; Farias, Giliandro; Andrade, Karina Luzia; Agostini, Deuber Lincon da Silva; Job, Aldo Eloízo; Vieira, André A.; Gallardo, Hugo; Canejo, João P.; Godinho, M. H.; Bechtold, Ivan H.

doi:10.1016/j.jlumin.2021.118498

Cited by 3 publications

(2 citation statements)

References 45 publications

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“…In Figure 9, fluorescent microscopy (FM) of the specimens indicates that the fibroblast cells are spread nicely and have proliferated on the top of the fibrous structure. A similar cell proliferation in fibrous structures was observed by Dias et al 11 and Bayan et al 102 The use of fluorescent microscopy can be quite challenging in biomaterials, especially in NR, due to its intrinsic property of high bioluminescence 103 . Despite that, observing the difference between the specimens and TCP, one can determine that as the BG loading increases, there seems to be a slightly lower cell count.…”

Section: Resultssupporting

confidence: 74%

“…A similar cell proliferation in fibrous structures was observed by Dias et al 11 and Bayan et al 102 The use of fluorescent microscopy can be quite challenging in biomaterials, especially in NR, due to its intrinsic property of high bioluminescence. 103 Despite that, observing the difference between the specimens and TCP, one can determine that as the BG loading increases, there seems to be a slightly lower cell count. A possible explanation of this fact is in a large release of ions from the BG particles, compromising the cell culture, as discussed in Vergnol et al 104 Additionally, it was reported that roughness gradients, in this case related to BG additive, determined fibroblasts proliferation and decrease rate was observed with increasing roughness.…”

Section: Biocompatibility Testmentioning

confidence: 98%

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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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Section: Resultssupporting

confidence: 74%