In this study, a novel and simple electrochemical sensor (ECS) was fabricated based on super pure single-walled carbon nanotubes (spSWCNTs) modified electrode. The ECS exhibited superior catalytic performance on the electrochemical reduction of olaquindox. A series of experimental parameters were systematically optimized to achieve optimal ECS performance. Compared with the bare gold electrode, the peak current increased 1700 times under the optimal experimental conditions. The ECS exhibited excellent sensitivity for the determination of trace olaquindox. The current response of the modified electrode was linear to the olaquindox concentration in the range of 0.1-500 nM with a detection limit of 30.0 pM (S/N = 3). The ECS was successfully applied for electrochemical recognition of olaquindox in real samples. In addition, the spSWCNTs modified electrode also exhibited remarkable electrocatalytic property in a wide potential range, so it had great potential for sensitive detection of various electroactive compounds.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.aca.2018.10.024 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Biomimetic Localized Gel Electrolyte for Practical Zinc Anode.
Angew Chem Int Ed Engl
March 2025
Beijing University of Chemical Technology, State Key Laboratory of Chemical Resource Engineering, CHINA.
Incompatible electrode/electrolyte interface often leads to dendrite growth, parasitic reactions and corrosion, posing significant challenges to the application of Zn anodes. Herein, we introduce a biomimetic antifreeze protein localized gel electrolyte (ALGE) with multifunctional capabilities to address these issues by combining electrolyte modification with interface optimization. ALGE modifies the Zn2+ solvation structure and the hydrogen-bond network adjacent to zinc anode, effectively suppressing hydrogen evolution.
View Article and Find Full Text PDFMicroenvironment Tailoring for Electrocatalytic CO Reduction: Effects of Interfacial Structure on Controlling Activity and Selectivity.
J Am Chem Soc
March 2025
Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore.
The performance of the electrocatalytic CO reduction reaction (CORR) is highly dependent on the microenvironment around the cathode. Despite efforts to optimize the microenvironment by modifying nanostructured catalysts or microporous gas diffusion electrodes, their inherent disorder presents a significant challenge to understanding how interfacial structure arrangement within the electrode governs the microenvironment for CORR. This knowledge gap limits fundamental understanding of CORR while also hindering efforts to enhance CORR selectivity and activity.
View Article and Find Full Text PDFrecording and stimulation performance of multi-electrode arrays passivated with plasma-enhanced atomic layer-deposited metal oxides.
Nanoscale
March 2025
CybreBrain Research Section, Electronics and Telecommunications Research Institute, 218 Gajeong-ro, Yuseong-gu, Daejeon 305-700, Republic of Korea.
To achieve an intimate contact between neuronal cells and the electrode in non-invasive platforms intended for neurological research, in this study, we fabricated a raised-type Au multi-electrode array (MEA) by employing nanoscale-thick indium-tin oxide (ITO; 50 nm) as a track layer and plasma-enhanced atomic layer-deposited (PEALD) AlO (30-60 nm) and HfO (20 nm) as passivation layers. The PEALD AlO-passivated Au MEA was subsequently modified with electrodeposited AuPt nanoparticles (NPs) and IrO to demonstrate the passivation capability and chemical resistance of AlO to Au-, Pt-, and IrO NP-containing electrolytes. AlO-passivated and IrO/AuPt-modified MEAs could resolve optogenetically activated spikes and spontaneous activities with a root-mean-square noise level of 2.
View Article and Find Full Text PDFOptimized Porous KTi(PO)@N-Doped Carbon Electrode for Enhanced Sodium/Potassium-Storage and Accelerated Activation Process.
ACS Appl Mater Interfaces
March 2025
Northwest Institute for Nonferrous Metal Research, Xi'an, Shannxi 710016, China.
Porous KTi(PO) nanoparticles are synthesized via a solvothermal method and subsequently modified with nitrogen-doped carbon layers by using polydopamine as the carbon source. The resultant KTi(PO)@N-doped carbon composite (KTP@NC) exhibits a preserved porous structure with abundant pores, facilitating ion diffusion and electrolyte infiltration. Various characterizations, including X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy, reveal the successful formation of an interconnected nitrogen-doped carbon network.
View Article and Find Full Text PDFStudy on Vacuum Breakdown Properties of Surface-Modified 304 Stainless Steel Electrodes Based on Fractal Theory.
Nanomaterials (Basel)
February 2025
School of Materials Science and Engineering, Chang'an University, Xi'an 710061, China.
This paper reports on the effect of the micro-morphological characteristics of stainless steel electrodes on vacuum breakdown properties under the action of a strong electric field generated by high-power electric pulses. Using chemical passivation modification and atomic layer deposition (ALD) technology, alumina composite films were prepared on the surface of the stainless steel electrodes to reshape the surface microstructure of the electrodes. The surface morphology features of the electrodes were characterized in detail.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!