葡萄糖氧化酶,大卜过氧化酶和色素染料-共吸收碳基电压计流量生物传感器为葡萄糖
Zeting Jiao1, Lichuan Kuang1, Masahito Komori1
1Department of Life Science and Green Chemistry, Graduate School of Engineering, Saitama Institute of Technology, 1690 Fukaya, Saitama 369-0293, Japan. hasebe@sit.ac.jp.
Analytical methods : advancing methods and applications
|August 19, 2024
概括
开发了一种用于葡萄糖检测的新型电压计流动生物传感器,使用甲蓝 (MB) 来稳定碳 (CF) 上的葡萄糖氧化酶 (GOx). 这种生物传感器提供灵敏,选择性和稳定的葡萄糖测量,适合分析饮料和烈酒.
科学领域:
- 电化学 电化学 电化学
- 生物传感器是一种生物传感器.
- 分析化学 分析化学
背景情况:
- 葡萄糖氧化酶 (GOx) 活性对生物传感器性能至关重要.
- 在电极表面稳定酶是生物传感器发展的关键.
- 碳 (CF) 为酶固定提供了较高的表面积.
研究的目的:
- 开发一个稳定和灵敏的安培度流量生物传感器用于葡萄糖测定.
- 研究甲蓝 (MB) 对吸附葡萄糖氧化酶 (GOx) 的稳定作用.
- 为了提高性能,将GOx修改的酶反应器与HRP修改的探测器相结合.
主要方法:
- 通过超声波辅助吸附,将GOx和甲基蓝 (MB) 固定在碳 (CF) 上.
- 基于CF的H2O2探测器的研发,该探测器经过过氧化酶 (HRP) 修改.
- 优化运行条件,包括应用潜力,载体pH值和流量.
主要成果:
- MB显著增强了GOx在CF上的活动和稳定性.
- 开发的生物传感器显示出高灵敏度 (6.22 μA mM-1),线性范围为0.011 mM,检测极限低 (9.6 μM).
- 生物传感器表现出极好的选择性,可重复性和稳定性,样本吞吐量为每小时4696个样本.
结论:
- 稳定MB的GOx/CF电极有效地创建了一个强大的酶反应器.
- 电压流量生物传感器可以在实物样本 (如饮料和液体) 中准确地确定葡萄糖.
- 开发的生物传感器为葡萄糖分析的传统光谱法提供了一个有希望的替代方案.
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