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一个纤维素多频段光探针用于快速检测pH和谷

Siyuan Xia¹, Yujie Duan¹, Shanshan Yu¹

¹School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, PR China.

Carbohydrate polymers

|February 22, 2024

概括

一个基于纤维素的新型探针快速检测细胞pH和谷氨 (GSH) 水平. 这种多频段光工具提供了对细胞微环境变化的视觉实时洞察.

科学领域:

生物医学工程生物医学工程
分析化学分析化学
材料科学材料科学材料科学

背景情况:

准确检测pH和谷氨 (GSH) 对于理解细胞微环境动态至关重要.
现有的同时检测方法可能很慢或缺乏视觉清晰度.

研究的目的:

开发一种快速的,可视的,多频段的比度光探测器,用于同时检测pH和GSH.
创建一个基于纤维素的平台,以提高探测器性能.

主要方法:

设计了一种基于纤维素的探针,其中包含了MnO2修饰的纤维素金纳米集群,光素异硫酸接种的CNC和原PX修饰的CNC.
在440nm,520nm和633nm使用不同的光辐射进行比度分析.
通过利用GSH诱导的MnO2降解来快速识别GSH.

主要成果:

探测器显示了pH敏感 (520 nm) 和GSH敏感 (440 nm) 的光,具有稳定的参考 (633 nm).
在4秒内实现了pH和GSH的同时检测,通过明显的颜色变化 (粉红色到蓝色,绿色到蓝色) 表示.
探测器有效地降解了MnO2作为对GSH的反应,使得分析物能够快速识别.

结论:

一个新的基于纤维素的多频段比度光探针成功开发,用于快速,同时检测pH和GSH.
探测器的设计为细胞微环境成像提供了视觉和高效的方法.
这一策略为创建用于多种分析物的先进光探针提供了一个框架.

关键词:

细胞成像细胞成像纤维素纳米晶体纤维素纳米晶体葡萄糖氨酸 (Glutathione) 是一种多频段光探测器多频段光探测器它们的pH值为pH.

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