A Novel Electrochemical Sensor Based on MnO2/Sepiolite Nanocomposite for the Detection of Hydrogen Peroxide in Human Serum Samples
نویسندگان
چکیده
Background: The reliable and easy-to-operate detection of hydrogen peroxide (H2O2) has attracted extensive attention in the fields biomedicine, food security, environmental analysis. Objectives: In this work, a novel electrochemical method was proposed for H2O2 monitoring using carbon paste electrode (CPE) modified with MnO2/sepiolite nanocomposite. Methods: material characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), diffraction (XRD) technique. CPE employed amperometric human serum samples. Results: Electrochemical data showed that MnO2/sepiolite-CPE displays high peak current towards oxidation. A linear range from 5 to 700 μM low limit 0.8 were obtained sensor. Besides, depicted excellent reproducibility anti-interferant ability, promising applicability practical analyses. Conclusions: This work introduced new effective enzyme-less sensor based on nanocomposite CPE. suggested good sensitivity rapid wide satisfactory reproducibility, which made it analysis real
منابع مشابه
A nanocomposite-based electrochemical sensor for non-enzymatic detection of hydrogen peroxide
Hydrogen peroxide (H2O2) plays important signaling roles in normal physiology and disease. However, analyzing the actions of H2O2 is often impeded by the difficulty in detecting this molecule. Herein, we report a novel nanocomposite-based electrochemical sensor for non-enzymatic detection of H2O2. Graphene oxide (GO) was selected as the dopant for the synthesis of polyaniline (PANI), leading to...
متن کاملElectrochemical production of Graphene Oxide and its application as a novel Hydrogen Peroxide sensor
Herein, graphene oxide is produced by electrochemical oxidation method from graphite rod to examine its hydrogen peroxide sensing ability. The electrochemically produced graphene oxide is characterized by SEM and XRD. A few layers of Graphene Oxide(GO) sheets and corrugations in graphene sheets appeared intensely crumpled and folded into a typical wrinkled structure after electrochemical oxidat...
متن کاملAn Electrochemical Sensor Based on Novel Ion Imprinted Polymeric Nanoparticles for Selective Detection of Lead Ions
In this study, the novel surface ion-imprinted polymer (IIP) particles were prepared and applied as a electrode modifier in stripping voltammetric detection of lead(II) ion. A carbon paste electrode (CPE) modified with IIP nanoparticles and multi-walled carbon nanotubes (MWCNTs) was used for accumulation of toxic lead ions. Various factors that govern on electrochemical signals including carbon...
متن کاملA Novel Nonenzymatic Hydrogen Peroxide Sensor Based on a Polypyrrole Nanowire-Copper Nanocomposite Modified Gold Electrode
A novel nonenzymatic hydrogen peroxide (H2O2) sensor has been fabricated by dispersing copper nanoparticles onto polypyrrole (PPy) nanowires by cyclic voltammetry (CV) to form PPy-copper nanocomposites on gold electrodes. Scanning electron microscopy (SEM) was used to characterize the morphologies of the PPy nanowires and the PPy-copper nanocomposite. The reactivity of the PPy-copper nanocompos...
متن کاملA novel nonenzymatic hydrogen peroxide sensor based on MnO2/graphene oxide nanocomposite.
A new electrocatalyst, MnO(2)/graphene oxide hybrid nanostructure was successfully synthesized for the nonenzymatic detection of H(2)O(2). The morphological characterization was examined by scanning electron microscopy and transmission electron microscopy. The MnO(2)/graphene oxide based electrodes showed high electrochemical activity for the detection of H(2)O(2) in alkaline medium. The nonenz...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annals of military and health sciences research
سال: 2021
ISSN: ['2383-1960', '2383-1979']
DOI: https://doi.org/10.5812/amh.119100