甲基粉作为一个交叉连接剂修改鱼类原蛋白膜的特性
Patrycja Brudzyńska1, Karolina Kulka-Kamińska1, Łukasz Piwowarski2
1Department of Biomaterials and Cosmetic Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7, 87-100 Torun, Poland.
Materials (Basel, Switzerland)
|April 13, 2024
概括
甲基粉 (DAS) 有效地修改鱼类原膜,增强机械强度和热稳定性. 这种交叉链接过程减少了水友性和胀,显示了鱼类衍生原材料更广泛应用的潜力.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 材料工程 材料工程 材料工程
背景情况:
- 鱼类原蛋白是一种有价值的生物聚合物,在各种领域都有潜在的应用.
- 修改原膜可以改善它们的特定用途的特性.
- 交叉连接是提高生物聚合物薄膜稳定性和性能的一种常见方法.
研究的目的:
- 为了研究二甲基粉 (DAS) 作为交联剂对鱼类原膜的影响.
- 描述改性原膜的机械,热,膨胀和表面性能的变化.
- 评估DAS在提高鱼类原蛋白薄膜适用性方面的潜力.
主要方法:
- 准备了鱼类原蛋白薄膜,并与不同度的二甲基粉 (DAS) 进行了交叉链接.
- 福里埃变换红外光谱法 (FTIR) 和原子力显微镜 (AFM) 用于材料表征.
- 进行了机械测试 (Young's Modulus,断裂力,断裂时延长,拉伸强度),热分析,膨胀测试和接触角测量.
主要成果:
- 与DAS交叉连接增加了断裂力,断裂时的延长和拉伸强度,同时减少了Young的模块.
- 接触角测量表明,DAS修饰的薄膜中水友性降低.
- 修改过的膜在PBS中显示出较低的胀度,其中1%的DAS样本显示出最高的胀.
- AFM分析显示,DAS影响了表面形态,观察到的最低粗度 (Rq) 在2%Coll_2%DAS.
- 与纯原蛋白样本相比,交叉链接的原蛋白薄膜显示出更好的热稳定性.
结论:
- 二甲基粉 (DAS) 是鱼类原膜的一个有前途的交叉链接剂.
- DAS修改增强了机械性能和热稳定性,同时减少了水友性和胀.
- 该研究表明,DAS可以提高鱼皮衍生原蛋白在生物材料应用中的适用性.
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