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无洗剂PET和可生物降解PBAT微型和纳米塑料的生产

Lukas Kogler¹, Sarah Stellnberger², Verena Schwingenschlögl-Maisetschläger²

¹Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna 1090, Austria; Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna, Vienna 1090, Austria; CBmed GmbH Center for Biomarker Research in Medicine, Graz 8010, Austria; Vienna Doctoral School of Pharmaceutical, Nutritional and Sport Sciences (VDS PhaNuSpo), Vienna 1090, Austria.

Journal of hazardous materials

|April 24, 2025

概括

研究人员开发了一种新方法来制造纯聚乙烯二甲 (PET) 和可生物降解的聚乙烯二甲-共二甲 (PBAT) 微型和纳米塑料颗粒 (MNP). 这为研究微塑料影响提供了可靠的,无添加剂的模型.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
毒理学毒理学毒理学

背景情况:

微塑料 (MP) 的性能各异,影响其环境和生物行为.
由于标准材料中的高度和添加剂,对MP毒性的现有研究受到质疑.
对于可靠的研究,需要纯粹的,具有良好的特征的MP模型.

研究的目的:

开发一种新的,无洗剂的协议,用于生产聚乙烯二甲 (PET) 和可生物降解的聚乙二甲联合二甲 (PBAT) 微型和纳米塑料颗粒 (MNP).
为环境和毒理学研究提供标准化,无添加剂的MP模型.
为MP研究评估洗剂的稳定性和无毒度范围.

主要方法:

溶解-沉方法使用三酸 (TFA) 用于PET和四水 (THF) /乙醇用于PBAT.
通过超声波进行颗粒大小的表征和调整.
MTT测定用于确定无毒洗剂度和粒子稳定性的Zeta电位测量.

主要成果:

从颗粒中生产高产量 (高达80%) 的PET MNPs (170-1000 nm).
成功地调整了生产可生物降解PBATMNP的协议.
在中性pH (Zeta电位为-45) 时,PET颗粒在含有或不含洗剂的水溶液中表现出稳定性.

结论:

建立了生产无添加剂PET和PBATMNP的新型高产量协议.
这些协议提供了真实的MP模型,对于推进微塑料研究至关重要.
这些发现解决了先前研究的局限性,为准确的体外和体外评估提供纯粹的MP材料.

关键词:

微塑料和纳米塑料的使用聚乙烯基酸 (PBBAT) 聚乙烯基酸 (PBBAT) 聚乙烯基酸 (PBBAT) 聚乙烯基酸 (PBAT) 聚乙烯基酸 (PBAT) 聚乙烯基酸 (PBAT)聚乙烯甲酸 (PET) 是一种聚乙烯甲酸.聚合物的聚合物.

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