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聚乙烯 (PDA) 涂层的基于纸张的光传感器用于检测和量化双二

Gayathri Loganathan¹, Shubham Gurav², Khaja Moinuddin Shaik¹

¹Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Sector 67, S.A.S. Nagar, Punjab 160062, India. sukhendu@niper.ac.in.

|February 24, 2026

概括

一个新的基于纸张的传感器使用可改变颜色的染料检测到双A (BPA). 这种便携,具有成本效益的方法使环境和医学样本中的BPA在现场快速监测成为可能.

科学领域:

环境科学环境科学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

双A (BPA) 是一种在各种环境和生物样本中发现的内分泌干扰污染物.
BPA对雌激素受体的干扰引发了重大的公共卫生问题.
现有的BPA检测方法可能是复杂和昂贵的.

研究的目的:

开发一种新的,便携式传感器,用于快速和灵敏地检测双A.
使用聚乙烯 (PDA) 染料进行基于色度和光的BPA量化.
允许在环境和医疗应用中对BPA进行现场监测.

主要方法:

一个基于纸张的传感器是通过涂上聚乙烯 (PDA) 染料的过纸来制造的.
通过FT-IR,拉曼光谱和显微镜来表征传感器对BPA的反应.
使用数字图像分析和光强度测量,测色和光变化与BPA度相关.

主要成果:

PDA涂层传感器在暴露于BPA时呈现出明显的,依赖度的颜色变化,从蓝色变为红色.
在BPA的基团和PDA的碳酸基团之间的键驱动了观察到的反应.
实现了高度线性校准曲线 (R2 = 0.99),使双模式 (色度和光) 检测成为可能.

结论:

开发的传感器为BPA检测提供了一种快速,具有成本效益和敏感的方法.
这种便携式传感器克服了在现场监测BPA的传统测试的局限性.
该技术为加强对BPA暴露的公共卫生保护提供了一个有前途的工具.

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