开发用氨酸合的MnO2量子点,用于对铜的光谱测量估计:在不同矩阵中的应用
Baher I Salman1, Ahmed I Hassan1, Roshdy E Saraya2
1Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt.
Analytical and bioanalytical chemistry
|July 11, 2023
概括
研究人员开发了新型光氨酸合二氧化量子点 (Cys@MnO2 QDs),用于检测食物和头发中的铜 (Cu). 这种方法提供了一种快速,经济和敏感的方法,用于在生物和食品样本中量化Cu.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 纳米技术 纳米技术
背景情况:
- 铜 (Cu) 对神经和免疫健康至关重要,缺乏铜与骨质疏松症有关.
- 准确确定食品和生物样本中的Cu含量对于健康监测至关重要.
研究的目的:
- 为了合成和表征新的绿色,光氨酸合二氧化量子点 (Cys@MnO2 QDs).
- 开发一种灵敏且经济的方法,使用Cys@MnO2 QDs量化食品和人类头发样本中的铜 (Cu).
主要方法:
- 通过简单的超声波方法合成3D光Cys@MnO2 QDs.
- 描述QD的形态和光学特性.
- 使用光灭Cys@MnO2 QDs在与Cu离子相互作用时进行检测.
主要成果:
- 合成的Cys@MnO2 QD在Cu离子存在时表现出光火,这归因于Cu-S结合.
- 该方法允许在0.06到7.00μg mL-1范围内量化Cu,检测极限为10.97 ng mL-1.1.
- 在,火,头鱼和人类头发样本中成功应用Cys@MnO2 QD方法来确定Cu.
结论:
- Cys@MnO2 QDs作为一个有希望的光纳米探测器,用于敏感和选择性的Cu检测.
- 开发的传感系统是快速的,简单的,经济的,适合在各种食品和生物基质中分析Cu.
- 这种技术有可能监测生物样本中的Cu水平,并了解其在健康中的作用.
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