Barium Titanate Nanocubes as a Dual Electrochemical Sensor for Detection of Dopamine and Acetaminophen

Abstract

We report on the development of a highly sensitive electrochemical sensor for the rapid detection of dopamine and acetaminophen molecules based on barium titanate nanocubes deposited on a glassy carbon electrode. The as-synthesized barium titanate nanocubes were characterized using X-ray diffraction measurements, field emission scanning electron microscopy, and UV–vis diffuse reflectance spectroscopy. The electrochemical performances of the as synthesised nanomaterials were investigated by cyclic voltammetry differential pulse voltammetry. A linear response was exhibited by the modified electrode for both dopamine, and acetaminophen in the range 10-100 μM, and the detection limit (S/N=3) was calculated to be 0.35 μM, 0.23 μM respectively. Under the optimised conditions, highly stable, sensitive, selective, and reproducible performances were exhibited by the electrochemical sensor. Furthermore, the as developed sensor also showed acceptable recoveries for the analysis of real samples.

Improved Photocatalytic Activity of Gold Nanoparticles Modified Barium Titanate Nanocubes Under Ultraviolet Light Irradiation

“…BaTiO3 nanocubes were synthesized using a method reported elsewhere with slight modifications. (Ali et al 2022) In brief 0.75 g of TiO2 was added in 35 mL ethanol and sonicated for 1 hr. 5.50 g of Ba(OH)2•8H2O were stirred in another solution constituting 25 mL DI water and 40 mL ethanol.…”

“…(Cai et al 2017, Chen et al 2020, Gaya &Abdullah 2008, Gusain et al 2019 Barium titanate is a ceramic materials which widely used in many industrial applications. (Buscaglia et al 2007, Wang et al 2013 The exceptional ferroelectric, magnetic, high dielectric and piezoelectric properties of BaTiO3 makes it an interesting candidate for applications in fields such as multilayer ceramic capacitors, memory devices, thermistors (Gao et al 2017), infrared detectors (Ertuğ 2013), actuators (Zhou et al 2013), electrooptic devices (Castera et al 2016) and other industrial applications (Ali et al 2022, Mao et al 2010). BaTiO3 also exhibit excellent piezoelectric and photocatalytic properties.…”

Nanoengineered β-MnO2/rGO nanobead-based bioconjugate interfaces for the electrochemical detection of dopamine for the potential to manage neurological diseases and depression

“…According to some previous results, the proposed nb morphology-based Tyr/nb-MnO 2 /rGO/ ITO bioelectrode has demonstrated unique and superior amperometric results, including high linearity, good sensitivity, a low limit of detection, high stability, and a quick response time, making it a prime candidate for electro-oxidation and the detection of DA. [41][42][43][44] In this work, the decoration of rGO with nb-b-MnO 2 is what causes the electrochemical response in the nb-b-MnO 2 /rGO nanocomposite interface to be effectively enhanced due to the reduced graphene oxide (rGO), and the oxygen-containing functional groups in the rGO interface electrostatically interact with the unique nb-b-MnO 2 , which is utilized as an electrode material for biosensing applications. and enzyme dihydroxy-phenylalanine (tyrosinase extract from mushroom) were purchased from Sigma-Aldrich, USA.…”

Fast, Cheap and Reliable Monitoring of Microalgae-Based Paracetamol Removal from Aquatic Environment Using Electrochemical Sensor Technology

“…[25][26][27][28] Therefore, there are countless electrochemical detection platforms, in other words electrochemical (bio)sensors, in the literature for the detection of PRL. [28][29][30] Carbon paste electrodes (CPE) [31][32][33][34][35] and glassy carbon electrodes (GCE) [36][37][38][39] were widely studied for the development of electrochemical PRL (bio)sensors. Manjunatha and coworkers 31 synthesized TiO 2 nanoparticles and modified CPE.…”

“…Although there are many reports in the literature about PRL removal [41][42][43][44][45][46][47][48][49][50][51] and electrochemical PRL detection, [31][32][33][34][35][36][37][38][39][40] there is no z E-mail: gulsah.congur@bilecik.edu.tr; gulsah.congur@hotmail.com report in the literature for the electrochemical monitoring of the removal of PRL. This study has hypotheses (i) to provide a simple, practical, time saving, and affordable but reliable method to close this gap of the literature and (ii) to combine microalgal biotechnology with electrochemistry area for one of the most challenging issues of today's world, water safety.…”