An electrochemical sensor based on molecularly imprinted poly(o-phenylenediamine) for the detection of thymol

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-05-01 DOI:10.1016/j.ab.2024.115551

Jieming Dong , Hongyu Zhang , Zhixiang Ding , Junyao Li , Laidi Xu , Yong Kong , Guojun Zheng

{"title":"An electrochemical sensor based on molecularly imprinted poly(o-phenylenediamine) for the detection of thymol","authors":"Jieming Dong , Hongyu Zhang , Zhixiang Ding , Junyao Li , Laidi Xu , Yong Kong , Guojun Zheng","doi":"10.1016/j.ab.2024.115551","DOIUrl":null,"url":null,"abstract":"<div><p>A molecularly imprinted electrochemical sensor was facilely fabricated for the detection of thymol (THY). <em>o</em>-Phenylenediamine (oPD) was used as the functional monomer and electropolymerized on the surface of the glassy carbon electrode (GCE) by using THY as the templates. After the THY templates were removed with 50 % (v/v) ethanol, imprinted cavities complementary to the templates were formed within the poly(<em>o</em>-phenylenediamine) (PoPD) films. The resultant molecularly imprinted PoPD/GCE (MI-PoPD/GCE) was used for the detection of THY, and a wide linear range from 0.5 to 100 μM with a low limit of detection (LOD) of 0.084 μM were obtained under the optimal conditions. The developed MI-PoPD/GCE also displays high selectivity, reproducibility and stability for THY detection. Finally, the content of THY in the real samples was accurately determined by the as-fabricated MI-PoPD/GCE, demonstrating its high practicability and reliability.</p></div>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0003269724000952","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}

引用次数: 0

Abstract

A molecularly imprinted electrochemical sensor was facilely fabricated for the detection of thymol (THY). o-Phenylenediamine (oPD) was used as the functional monomer and electropolymerized on the surface of the glassy carbon electrode (GCE) by using THY as the templates. After the THY templates were removed with 50 % (v/v) ethanol, imprinted cavities complementary to the templates were formed within the poly(o-phenylenediamine) (PoPD) films. The resultant molecularly imprinted PoPD/GCE (MI-PoPD/GCE) was used for the detection of THY, and a wide linear range from 0.5 to 100 μM with a low limit of detection (LOD) of 0.084 μM were obtained under the optimal conditions. The developed MI-PoPD/GCE also displays high selectivity, reproducibility and stability for THY detection. Finally, the content of THY in the real samples was accurately determined by the as-fabricated MI-PoPD/GCE, demonstrating its high practicability and reliability.

Abstract Image

查看原文本刊更多论文

基于分子印迹聚（邻苯二胺）的电化学传感器用于检测百里酚

以邻苯二胺（oPD）为功能单体，以百里酚（THY）为模板在玻璃碳电极（GCE）表面进行电聚合。用 50% (v/v) 乙醇去除 THY 模板后，在聚（邻苯二胺）（PoPD）薄膜内形成了与模板互补的印迹空腔。由此产生的分子印迹 PoPD/GCE （MI-PoPD/GCE）被用于检测 THY，在最佳条件下获得了 0.5 至 100 μM 的宽线性范围和 0.084 μM 的低检测限 (LOD)。所开发的 MI-PoPD/GCE 在检测 THY 方面还具有高选择性、可重复性和稳定性。最后，所制备的 MI-PoPD/GCE 还能准确测定实际样品中 THY 的含量，证明了其高度的实用性和可靠性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464