4.7 Article

Platinum nanoflowers stabilized with aloe polysaccharides for detection of organophosphorus pesticides in food

出版社

ELSEVIER
DOI: 10.1016/j.ijbiomac.2023.126552

关键词

Aloe polysaccharide; Colorimetric assay; Organophosphorus pesticide

向作者/读者索取更多资源

This study demonstrates the application of AP-Ptn NFs extracted from aloe vera in the detection of organophosphorus pesticides. The colorimetric biosensor exhibits a wider detection range and good selectivity, showing potential for bioassay analysis.
Organophosphorus pesticides can inhibit the activity of acetylcholinesterase and cause neurological diseases. Therefore, it is crucial to establish an efficient and sensitive platform for organophosphorus pesticide detection. In this work, we extracted aloe polysaccharide (AP) from aloe vera with the number average molecular weight of 27760 Da and investigated its reducing property. We prepared aloe polysaccharide stabilized platinum nanoflowers (AP-Ptn NFs), their particle size ranges were 29.4-67.3 nm. Furthermore, AP-Ptn NFs exhibited excellent oxidase-like activity and the catalytic kinetics followed the typical Michaelis-Menten equation. They showed strong affinity for 3,3 ',5,5 '-tetramethylbenzidine substrates. More importantly, we developed a simple and effective strategy for the sensitive colorimetric detection of organophosphorus pesticides in food using biocompatible AP-Ptn NFs. The detection range was 0.5 mu g/L - 140 mg/L, which was wider than many previously reported nanozyme detection systems. This colorimetric biosensor had good selectivity and good promise for bioassay analysis.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据