Recent developments in faradaic bioelectrochemistry

Chemical and electrochemical approaches to the investigation of redox reactions of simple electron transfer metalloproteins

Graphite thick-film disposable electrodes which may be used for sensitive analytical determinations by the techniques of conventional and stripping voltammetry have been characterized by electron scanning microscopy, optical spectroscopy, and electrochemical methods. Studies on the reversible Cc + + e - ⇇ Cc (Cc is cobaltocene) reduction process in acetonitrile confirmed the inlaid and recessed disk microelectrode random array-type behavior expected at a rough surface on the basis of examination of the electrode surface by electron scanning microscopy. Anodic stripping voltammograms of copper, lead, and cadmium in 0.1 M HCl at an in situ mercury-plated disposable graphite electrode demonstrate the excellent analytical performance that may be achieved for trace analysis even at unusually fast scan rates in the volts per second range. The microelectrode array properties also mean that oxygen removal and stirring of the solution can be avoided when the electrodes are used for stripping voltammetry.

Characterization of thick-layer graphite disposable voltammetric electrodes

Electrochemical reduction of H2O2 at pyrolytic graphite disc electrodes of radius 2.5 mm occurs at readily accessible potentials (600 mV versus the standard hydrogen electrode) in the presence of yeast cytochrome c peroxidase. Introduction of the enzyme into the electrolyte solution initiates large changes in the ellipsometric angles measured for the electrode–solution interface, consistent with time-dependent enzyme adsorption. This process may be correlated with changes in electrochemical activity. Over the same time course, linear-sweep voltammograms are characterized by a transition from a sigmoidal to a peak-type waveform. It is proposed that the time-dependent behaviour may be rationalized by use of a microscopic model for substrate mass transport, in which the two-electron reduction of peroxide occurs at electrocatalytic sites consisting of adsorbed enzyme molecules. A voltammetric theory based on treating the adsorbed redox enzymes as an expanding array of microelectrodes is in excellent agreement with experiment.

Electrocatalytic reduction of hydrogen peroxide at a stationary pyrolytic graphite electrode surface in the presence of cytochrome c peroxidase: a description based on a microelectrode array model for adsorbed enzyme molecules

The application of electrochemical scanning probe microscopy to the interpretation of metalloprotein voltammetry

Robert Boyle anniversary lecture. New aspects of the electrochemistry of redox active metalloproteins and enzymes based on a microscopic model of electron transfer at the electrode–solution interface

Robert Boyle Valedictory Lecture. New understandings gained from chemical and electrochemical investigations of redox reactions of electron transfer metalloproteins and enzymes: relevance to voltammetric (amperometric) biosensors

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

A. M. Bond

Author Tools

Chat about Author

Papers

Robert Boyle anniversary lecture. New aspects of the electrochemistry of redox active metalloproteins and enzymes based on a microscopic model of electron transfer at the electrode–solution interface

Robert Boyle Valedictory Lecture. New understandings gained from chemical and electrochemical investigations of redox reactions of electron transfer metalloproteins and enzymes: relevance to voltammetric (amperometric) biosensors