This paper proposes a very simple procedure for preparing a biocompatible sensor based on a protein (bovine serum albumin, BSA), enzyme and vinylferrocene (VF) composite membrane modified electrode. The membrane was prepared simply by first casting vinylferrocene and then coating it with BSA and glucose oxidase immobilised with glutaraldehyde. The sensor response was independent of dissolved oxygen concentration from 3 to 10 ppm and showed good stability for serum sample measurement, unlike the commonly used BSA/enzyme modified electrode. The sensor response was almost unchanged over the measurement time (>10 h) whereas the responses of a BSA and glucose oxidase modified platinum electrode and an osmium-polyvinylpyridine wired horseradish peroxidase modified electrode (Ohara et al., 1993) fell to 68% of their initial value in a serum sample containing 10mM glucose.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.bios.2004.02.018 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Differentiated Modulating the Electronic Structure of NiFe@Ni/Fe-MnOx via Phase Transformation Engineering to Synergy Promote Bifunctional Water Splitting Reactions.
Small
January 2025
Faculty of Materials Science and Engineering, Analysis and Testing Research Center, Kunming University of Science and Technology, Kunming, 650093, P. R. China.
Modulating electronic structure to balance the requirement of both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial for developing bifunctional catalysts. Herein, phase transformation engineering is utilized to separately regulate catalyst structure, and the designed NiFe@Ni/Fe-MnOOH schottky heterojunction exhibits remarkable bifunctional electrocatalytic activity with low overpotentials of 19 and 230 mV at 10 mA cm for HER and OER in 1M KOH, respectively. Meanwhile, an anion-exchange membrane water electrolyzer employing NiFe@Ni/Fe-MnOOH as electrodes shows low voltages of 1.
View Article and Find Full Text PDFElectro-polymerization of modified carbon paste sensor for detecting azithromycin.
Sci Rep
January 2025
Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
Azithromycin (AM) is one of the prescribed drugs in pandemic medication treatment which has paid great attention. We developed in this study a simply modified carbon paste electrode (CPE) to detect AM using poly-threonine (PT). PT or similar polymers are used as carriers to enhance the delivery and effectiveness of AM.
View Article and Find Full Text PDFRefining Stereotaxic Deep Brain Stimulation Surgery Procedures for Parkinson Disease in Pursuit of Zero Pneumocephalus: 2-Dimensional Operative Video.
Oper Neurosurg (Hagerstown)
January 2025
Department of Neurosurgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Pudong, Shanghai, China.
Background And Objectives: Deep brain stimulation (DBS) is a well-established intervention for alleviating both motor and nonmotor symptoms of Parkinson disease. However, a common complication of stereotaxic DBS surgery is pneumocephalus, which can compromise electrode accuracy, complicate postoperative assessments, and negatively affect the long-term outcomes of DBS surgery. This report proposes a comprehensive and robust set of recommendations aimed at optimizing DBS surgical protocols to achieve zero pneumocephalus outcomes.
View Article and Find Full Text PDFAddressing the pressing need to develop affordable and efficient catalysts is essential. In this study, we successfully synthesized CuBiS nanostructures with a modified morphology using three different nitrogen bases: DBN, DBU, and DABCO a hydrothermal technique. These nanostructures were used for the electrochemical detection of organic nitro groups, a previously unexplored application for this material.
View Article and Find Full Text PDFg-CN modified flower-like CuCoO array on nickel foam without binder for high-performance supercapacitors.
RSC Adv
January 2025
School of Physics and Electronic Engineering, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University Taiyuan 030006 China
This study investigates the impact of integrating g-CN into CuCoO electrodes on electrochemical performance working as binder-free electrodes. Flower-like CuCoO nanostructures on nickel foam are decorated with few-layer g-CN using a secondary hydrothermal process. The hierarchical g-CN/CuCoO nanoflower electrode demonstrates a specific capacity of 247.
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!