Hydrolytic Degradation

Tsuji, Hideto

doi:10.1002/9781119767480.ch21

Cited by 4 publications

(4 citation statements)

References 388 publications

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“…All other fungi were responsible for mold growth, but only in the PLA sample and in the composites with untreated wood. The presence of filler and crystallinity degree were reported to affect the biodegradation process of PLA and its susceptibility to microorganisms [54][55][56], but in this study, it was caffeine treatment that affected antifungal properties.…”

Section: Antimicrobial Propertiesmentioning

confidence: 64%

Enhancing Sustainability and Antifungal Properties of Biodegradable Composites: Caffeine-Treated Wood as a Filler for Polylactide

Grząbka-Zasadzińska,

Woźniak,

Kaszubowska-Rzepka

et al. 2024

Materials

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This study investigates the suitability of using caffeine-treated and untreated black cherry (Prunus serotina Ehrh.) wood as a polylactide filler. Composites containing 10%, 20%, and 30% filler were investigated in terms of increasing the nucleating ability of polylactide, as well as enhancing its resistance to microorganisms. Differential scanning calorimetry studies showed that the addition of caffeine-treated wood significantly altered the crystallization behavior of the polymer matrix, increasing its crystallization temperature and degree of crystallinity. Polarized light microscopic observations revealed that only the caffeine-treated wood induced the formation of transcrystalline structures in the polylactide. Incorporation of the modified filler into the matrix was also responsible for changes in the thermal stability and decreased hydrophilicity of the material. Most importantly, the use of black cherry wood treated with caffeine imparted antifungal properties to the polylactide-based composite, effectively reducing growth of Fusarium oxysporum, Fusarium culmorum, Alternaria alternata, and Trichoderma viride. For the first time, it was reported that treatment of wood with a caffeine compound of natural origin alters the supermolecular structure, nucleating abilities, and imparts antifungal properties of polylactide/wood composites, providing promising insights into the structure-properties relationship of such composites.

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Section: Antimicrobial Propertiesmentioning

confidence: 64%

Enhancing Sustainability and Antifungal Properties of Biodegradable Composites: Caffeine-Treated Wood as a Filler for Polylactide

Grząbka-Zasadzińska,

Woźniak,

Kaszubowska-Rzepka

et al. 2024

Materials

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“…4). The influence of crystallinity on hydrolytic degradation can be observed in various polyesters such as poly(lactic acid) (PLA), 166 poly(glycolic acid) (PGA), 167 and PCL. 42 Another example of the influence of crystallinity on the hydrolytic degradation rate is the difference observed between poly(lactic- co -glycolic acid) (PLGA) copolymers with varying ratios of lactic acid to glycolic acid (L/G).…”

Section: Hydrolytic Degradation Of Biopolyestersmentioning

confidence: 99%

Harnessing the power of polyol-based polyesters for biomedical innovations: synthesis, properties, and biodegradation

Fakhri,

Su,

Tavakoli Dare

et al. 2023

J. Mater. Chem. B

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“…Poly(L-lactic acid) (PLLA) is a crucial material in bone regeneration applications for contemporary biomedical implants [4], owing to its exceptional mechanical stability, processability, cellular compatibility, and degradation properties that align with new bone formation. Furthermore, it degrades into non-toxic and metabolizable lactic acid [5].…”

Section: Introductionmentioning

confidence: 99%

Epoxidized Soybean Oleic Acid/Oligomeric Poly(lactic acid)-Grafted Nano-Hydroxyapatite and Its Role as a Filler in Poly(L-lactide) for Potential Bone Fixation Application

Huang,

Luo,

Chao

et al. 2024

Materials

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One of the most effective strategies for modifying the surface properties of nano-fillers and enhancing their composite characteristics is through polymer grafting. In this study, a coprecipitation method was employed to modify hydroxyapatite (HAP) with epoxidized soybean oleic acid (ESOA), resulting in ESOA-HAP. Subsequently, oligomeric poly(lactic acid) (OPLA) was grafted onto the surface of ESOA-HAP, yielding OPLA-ESOA-HAP. HAP, ESOA-HAP, and OPLA-ESOA-HAP were comprehensively characterized. The results demonstrate the progressive grafting of ESOA and OPLA onto the surface of HAP, resulting in enhanced hydrophobicity and improved dispersity in organic solvent for OPLA-ESOA-HAP compared to HAP. The vitality and adhesion of Wistar rat mesenchymal stem cells (MSCs) were assessed using HAP and modified HAP materials. Following culture with MSCs for 72 h, the OPLA-ESOA-HAP showed an inhibition rate lower than 23.0% at a relatively high concentration (1.0 mg/mL), which is three times lower compared to HAP under similar condition. The cell number for OPLA-ESOA-HAP was 4.5 times higher compared to HAP, indicating its superior biocompatibility. Furthermore, the mechanical properties of the OPLA-ESOA-HAP/PLLA composite almost remained unaltered ever after undergoing two stages of thermal processing involving melt extrusion and inject molding. The increase in the biocompatibility and relatively high mechanical properties render OPLA-ESOA-HAP/PLLA a potential material for the biodegradable fixation system.

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Hydrolytic Degradation

Cited by 4 publications

References 388 publications

Enhancing Sustainability and Antifungal Properties of Biodegradable Composites: Caffeine-Treated Wood as a Filler for Polylactide

Enhancing Sustainability and Antifungal Properties of Biodegradable Composites: Caffeine-Treated Wood as a Filler for Polylactide

Harnessing the power of polyol-based polyesters for biomedical innovations: synthesis, properties, and biodegradation

Epoxidized Soybean Oleic Acid/Oligomeric Poly(lactic acid)-Grafted Nano-Hydroxyapatite and Its Role as a Filler in Poly(L-lactide) for Potential Bone Fixation Application

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