电替代合成VO@EGaIn-PEG核心外纳米混合物用于过氧化酶模仿
Xiaojian Xu1, Yuhe Shen1, Ruizhe Xing2
1State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China.
ACS applied materials & interfaces
|April 16, 2024
概括
我们开发了新的生物相容纳米酶,使用液体金属 (LM) 和聚乙烯糖醇 (PEG) 来增强生物感知. 这些自我愈合的纳米酶提供可回收和具有成本效益的血清葡萄糖检测.
科学领域:
- 纳米材料科学 科学 纳米材料科学
- 生物医学工程 生物医学工程
- 分析化学 分析化学
背景情况:
- 高性能生物传感器至关重要,但受到纳米酶生物相容性和可回收性的限制.
- 由于降解和成本,现有的纳米酶在实际应用中面临挑战.
- 开发强大且可重复使用的纳米酶对于推进生物传感技术至关重要.
研究的目的:
- 创建生物相容和可回收纳米酶,以提高生物传感器性能.
- 为了利用液体金属 (LM) 的特性,增强催化活性和自我愈合能力.
- 开发一个智能手机集成的平台,用于敏感和定量葡萄糖检测.
主要方法:
- 通过电替代反应合成的核心外纳米混合体 (VOx@EGaIn-PEG).
- 使用的聚乙烯糖醇 (PEG) 用于生物相容性和液态金属 (LM) 用于催化活性.
- 将纳米酶与智能手机集成,用于对葡萄糖进行色度检测.
主要成果:
- VOx@EGaIn-PEG表现出极好的过氧化酶类活性 (Km = 490 μM,vmax = 1.206 μM/s) 和稳定性.
- 该LM组件提供了自我愈合和再生特性,降低了检测成本.
- 开发的平台以高灵敏度 (LOD = 2.35 μM) 和广泛的线性范围 (10-500 μM) 检测血清中的葡萄糖.
结论:
- 这种VOx@EGaIn-PEG纳米酶显示了对催化和生物医学应用的巨大潜力.
- 基于液体金属的纳米酶为克服生物相容性和可回收性的局限性提供了一个有希望的途径.
- 智能手机集成的平台为定量生物检测提供了一个方便而高效的工具.
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