通过被动微共振器生物传感器在固体介质上实时检测酵母生长
Bo-Wen Shi1, Jun-Ming Zhao1, Yi-Ke Wang1
1School of Internet of Things Engineering, Institute of Advanced Technology, Jiangnan University, Wuxi 214122, China.
Biosensors
|May 24, 2024
概括
这项研究开发了一种集成的被动设备 (IPD) 生物传感器,用于实时监测微生物生长. 这种新型生物传感器通过检测电气参数的变化来准确跟踪酵母菌的繁殖.
科学领域:
- 生物传感器技术技术
- 微生物监测 微生物监测
- 集成被动设备 (IPD) 技术技术
背景情况:
- 实时测量微生物生长对于各种科学和工业应用至关重要.
- 现有的方法可能缺乏灵敏度,速度或连续监控能力.
- 集成被动设备 (IPD) 技术为新型传感器制造提供了一个平台.
研究的目的:
- 开发和验证一种使用IPD技术的新型生物传感器,用于实时测量微生物生长.
- 用酵母 (Pichia pastoris) 作为模型生物体来演示生物传感器的性能.
- 分析生物传感器电气参数与酵母生长动态之间的关系.
主要方法:
- 在IPD平台上使用数字间电容器和螺旋式感应结构制造生物传感器.
- 加入空中桥梁来增强电场强度.
- 在固体介质上以1.84 GHz的操作频率实时监测酵母生长.
- 分析与酵母菌群高度和繁殖相关的电容和共振振幅变化.
主要成果:
- 生物传感器检测到由酵母生长引起的电参数 (电容,共振振幅) 的变化.
- 响应振幅显示持续变化24至72小时,与酵母垂直生长相关 (最大变化0.21dB).
- 测量数据与戈珀茨曲线有很强的匹配,并且在24-72小时之间与时间 (R2=0.9844) 有线关系.
结论:
- 基于IPD的生物传感器是有效的实时监测微生物的增殖.
- 生物传感器证明适合跟踪酵母生长动态.
- 这项技术在微生物检测和分析方面的应用潜力很大.
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