在有孔的结有机框架中封装酶
Weibin Liang1, Francesco Carraro2, Marcello B Solomon2
1Department of Chemistry and the Centre for Advanced Nanomaterials , The University of Adelaide , Adelaide , South Australia 5005 , Australia.
Journal of the American Chemical Society
|August 21, 2019
概括
一种新的有机框架 (HOF) 稳定生物分子抵御热量,化学物质和pH值变化. 这种无金属材料为生物催化和生物治疗提供了有希望的替代品.
科学领域:
- 生物技术
- 材料科学
- 生物化学
背景情况:
- 生物组件的保护对于生物技术应用至关重要,包括生物催化和生物治疗稳定中的酶耐用性.
- 目前的方法在保护生物分子免受高温,变质剂和极端pH值等恶劣条件的限制.
研究的目的:
- 开发和描述一种用于生物分子稳定的多孔有机框架 (HOF).
- 评估HOF对各种压力源的保护能力,并比较其性能与现有的材料,如热带化模酸框架 (ZIF).
主要方法:
- 使用水溶性四胺和四碳酸盐构成块合成多孔HOF.
- 在HOF结构中封装生物分子 (例如,催化酶,酒精氧化酶).
- 评估不同条件下的酶活性和稳定性 (温度,pH值,蛋白分解剂和变性剂).
主要成果:
- 它成功封装和稳定了生物分子,提高了它们对高温,蛋白质溶解和变性剂的抵抗力.
- 当被封装在HOF中时,catalase活性扩展到更广泛的可操作pH范围.
- 酒精氧化酶在ZIF中不活跃,在HOF中封装时保持活性,突出显示HOF的独特保护性质.
- 这种HOF框架很容易保留水,有助于生物分子的保护.
结论:
- 开发的HOF为生物分子提供了有效的保护和稳定,这对于生物技术应用至关重要.
- HOF是一种无金属,生物相容的ZIF替代品,在更广泛的,生物相关的pH范围内提供更大的孔径和稳定性.
- 这种HOF材料显著提高了酶和生物治疗药物的耐用性和适用性.
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