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一个手持的生物光度系统,用于在呼出的呼吸冷凝物中检测乙

Geng Zhang¹, Kenta Ichikawa², Kenta Iitani²

¹Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan. m.bdi@tmd.ac.jp.

|January 2, 2025

概括

一个新的手持生物传感器使用酶反应来检测呼吸中的乙,有助于糖尿病监测. 这种便携式设备为临床诊断和可穿戴应用提供了敏感和选择性的测量.

科学领域:

生物医学工程生物医学工程
分析化学分析化学
代谢监测代谢监测

背景情况:

乙是人类新陈代谢的关键标记物,对于监测脂质代谢和早期发现糖尿病至关重要.
目前的乙检测方法可能缺乏广泛临床使用所需的可移植性和灵敏性.

研究的目的:

开发一个紧的,电池驱动的手持生物传感器,用于使用光检测乙.
为了评估传感器的性能及其在分析呼出的气凝液中的适用性.

主要方法:

开发了一种度NADH检测系统,利用二次醇脱酶 (S-ADH) 与NADH的酶反应.
优化的工作条件和评估的传感器特征用于乙量化.
测量了健康受试者在休息和禁食后呼出的呼吸凝结物中的乙度.

主要成果:

手持生物传感器在1分钟内准确量化了510nM1mM范围内的乙.
在休息状态和禁食状态之间,在呼出的气凝液中检测到亚水平的显著差异 (p = 0.011).
该系统表现出高灵敏度,选择性和可移植性.

结论:

开发的电池驱动的乙生物传感器是临床诊断的敏感和选择性的工具.
它的手持便携性使其适合于可穿戴的生物化学传感器和护理点应用.
这项技术有望改善代谢监测和早期疾病检测.

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