一种具有光标记的色聚合物-酶结合物,携带两种不同类型活性酶的多个副本
Andrea Grotzky1, Thomas Nauser, Huriye Erdogan
1Laboratory of Polymer Chemistry, Department of Materials, ETH Zürich, Wolfgang-Pauli-Strasse 10, 8093 Zürich, Switzerland.
Journal of the American Chemical Society
|June 30, 2012
概括
研究人员开发了一种新的聚合物结构,载有多种酶和光染料. 这种混合材料保持了酶活性,可以催化级联反应,显示了先进应用的潜力.
科学领域:
- 聚合物化学 聚合物化学
- 生物结合的生物结合
- 酶固定化 酶固定化
背景情况:
- 合成聚合物为生物分子结合提供了多功能平台.
- 酶固定对于提高稳定性和可重复使用性至关重要.
- 开发多功能混合材料是纳米技术的一个关键领域.
研究的目的:
- 为了合成一种混合结构,将合成的丹德罗化聚合物与超氧化物脱氧化酶,胡卜过氧化酶和光素结合起来.
- 建立一个UV/VIS可量化的附着化学物质,以精确控制分子负荷.
- 为了证明在级联反应中固定酶的保留活性.
主要方法:
- 合成了一种树化聚合物.
- 通过 bis-aryl hydrazone 键连接超氧化物脱酶,胡卜素过氧化酶和光素.
- 使用紫外线/紫外线光谱学量化结合的分子.
- 通过两步级联反应评估酶活性.
主要成果:
- 一个单一的聚合物链成功地携带了两个酶和一个光染料的多个副本.
- 对附着分子的数量实现了精确的控制 (例如,每链60个SOD,120个HRP,20个光素).
- 固定化的酶保留了全部的催化活性,并成功调解了两步级联反应.
结论:
- 成功合成了一种具有高酶负荷和保留活性的新型混合聚合物结构.
- 双烯酸连接提供了一种可量化的方法,用于将生物分子附着在聚合物上.
- 开发的材料显示了需要酶级联和多功能平台的应用的潜力.
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