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首页> 外文期刊>Catalysis science & technology >Real-time regulation of catalysis by remote-controlled enzyme-conjugated gold nanorod composites for aldol reaction-based applications
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Real-time regulation of catalysis by remote-controlled enzyme-conjugated gold nanorod composites for aldol reaction-based applications

机译：实时监管的催化作用遥控enzyme-conjugated金奈米棒醇醛reaction-based应用程序的复合材料

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摘要

Remote-controlled nanomaterials, used to regulate rapid conversion of light energy into internal energy, are an emerging technology for achieving real-time control of enzymatic and catalytic industrial processes. One means of achieving control is through alteration of the photothermal ability of plasmonic nanostructures to deliver internal energy to enzymes in order to regulate catalytic rates. Such smart systems design is applicable to fields of enzymology, biological engineering, and chemical synthesis. Here, we fabricate enzyme-conjugated gold nanorod composites (EGCs) via self-assembly to enhance enzymatic activity, reusability, and thermal stability of mesophilic, thermophilic, and hyperthermophilic enzymes. Using the photothermal effect of EGCs to convert near-infrared (NIR) laser irradiation to internal energy, rapid elevation of local temperature and enzyme activity and real-time control over the reaction are achieved. We also demonstrate that enzymes with higher optimal temperatures are especially suitable for use in the remote-controlled nanobiocatalytic system. Ultimately, the photothermal effect of EGCs exhibits excellent promiscuity, catalytic efficiency (8-fold higher), and yield (99%) and achieves aldol addition within 30 min. Thus, EGCs possess great potential benefits for industrial applications and can be incorporated into real-time enzyme catalysis systems that are regulated using remote-controlled nanobiocatalytic strategies.
机译：遥控纳米材料,用于调节快速光能量转化为内部能源,是一个新兴的技术实现酶和催化的实时控制工业过程。控制是通过改变光照电浆纳米结构的能力热力学能酶来调节催化率。适用于酶学、生物工程,化学合成。制造enzyme-conjugated金奈米棒通过自组装来增强复合材料(EGCs)酶活性、可重用性和热嗜中温的稳定性、高温和hyperthermophilic酶。EGCs转换的影响近红外(NIR)激光辐照内部能量,快速海拔的地方温度和酶活动和实时控制的反应是实现。与最优温度特别高适用于遥控nanobiocatalytic系统。光热光谱分析EGCs展览效果好滥交,催化效率(8倍高),收益率(99%)和实现醇醛除了在30分钟。因此,EGCs拥有伟大工业应用的潜在好处和可以被纳入实时酶催化系统,规范使用遥控nanobiocatalytic策略。

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