基于CuFe2O4磁性颗粒的氧化酶类活性的外部空白矩阵无光感应平台,用于检测素光
Kaixin Liu1, Hongxuan Zhang1, Zhihong Guan1
1Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science & Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, School of Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China.
Food chemistry
|February 10, 2026
概括
开发了一种新的光传感平台,用于检测素 (CPP). 这种方法提供了快速,准确和现场分析CPP,这对于婴儿配方奶粉和骨健康至关重要.
科学领域:
- 分析化学 分析化学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 素 (CPP) 对于的吸收和骨矿化至关重要,通常用于婴儿配方奶粉.
- 准确和快速检测CPP对于质量控制至关重要,但仍然是一个挑战.
研究的目的:
- 开发第一个外部空白矩阵免费的现场光传感平台,用于CPP检测.
- 克服现有的CPP检测方法的局限性.
主要方法:
- 使用双磁粒子系统:具有氧化酶类活性的CuFe2O4MP和用于选择性吸附的TiO2@PDA@Fe3O4MP.
- CPP抑制了CuFe2O4催化的o-phenylenediamine (OPD) 的氧化,导致光变化.
- TiO2@PDA@Fe3O4 MPs预处理样本以减少矩阵干扰.
主要成果:
- 该平台在CPP检测方面表现出了出色的选择性,灵敏性和准确性.
- 达到1.04μg mL-1的检测极限,线性范围为5-100μg mL-1.
- 康复率在96.2-108.5%之间,相对标准偏差<4.6%.
结论:
- 开发的平台可以在现场可靠地检测CPP.
- 为实用,实时的CPP分析而构建了一个便携式设备.
- 这项创新支持加强婴儿营养和相关领域的质量控制.
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