Nanohybrid of antimonene@Ti3C2Tx-based electrochemical aptasensor for lead detection

Zhouxiang Zhang; Hassan Karimi-Maleh; Yangpin Wen; Rozhin Darabi; Tao Wu; Pardis Alostani; Masoumeh Ghalkhani

doi:10.1016/j.envres.2023.116355

Nanohybrid of antimonene@Ti₃C₂T_x-based electrochemical aptasensor for lead detection

Environ Res. 2023 Sep 15:233:116355. doi: 10.1016/j.envres.2023.116355. Epub 2023 Jun 15.

Authors

Zhouxiang Zhang¹, Hassan Karimi-Maleh², Yangpin Wen³, Rozhin Darabi¹, Tao Wu¹, Pardis Alostani⁴, Masoumeh Ghalkhani⁵

Affiliations

¹ School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, China.
² School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, China; Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, China; Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Islamic Republic of Iran. Electronic address: hassan@uestc.edu.cn.
³ Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang, 330045, China.
⁴ Department of Food Science and Technology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran.
⁵ Electrochemical Sensors Research Laboratory, Department of Chemistry, Faculty of Science, Shahid Rajaee Teacher Training University, Lavizan, P.O. Box 16785-163, Tehran, 167881-5811, Iran.

PMID: 37329944
DOI: 10.1016/j.envres.2023.116355

Abstract

Lead ions (Pb²⁺), as one of many common heavy metallic environmental pollutants, can cause serious side-effects and result in chronic poisoning to people's health, so it is highly significant to monitor Pb²⁺ efficiently and sensitively. Here, we proposed an antimonene@Ti₃C₂T_x nanohybrid-based electrochemical aptamer sensor (aptasensor) for high sensitive Pb²⁺ determination. The sensing platform of nanohybrid was synthesized by ultrasonication, possessing the advantages of both antimonene and Ti₃C₂T_x, which not only can vastly enlarge the sensing signal of the proposed aptasensor, but also greatly simplified its manufacturing flow, because antimonene can strongly interact with aptamer through noncovalently bound. The surface morphology and microarchitecture of the nanohybrid were perused by several methods such as scanning electron microscope (SEM), energy-dispersive X-ray mapping spectroscopy (EDS), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and atomic force microscope (AFM). Under optimal empirical conditions, the proposed aptasensor exhibited a wide linear correlation of the current signals with the logarithm of C_Pb²⁺ (Log C_Pb²⁺) over the span from 1 × 10^-12 to 1 × 10^-7 M and provided a trace discernment limit of 3.3 × 10^-13 M. Moreover, the constructed aptasensor displayed superior repeatability, great consistency, eminent selectivity, and beneficial reproducibility, implying its extreme potential application for water quality control and the environmental monitoring of Pb²⁺.

Keywords: Antimonene@Ti(3)C(2)T(x); Electrochemical aptasenor; Lead ion; Nanohybrid.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Aptamers, Nucleotide* / chemistry
Biosensing Techniques* / methods
Electrochemical Techniques
Humans
Lead
Limit of Detection
Reproducibility of Results
Titanium

Substances

Lead
Aptamers, Nucleotide
Titanium