This review (with (318) refs) describes progress made in the design and synthesis of morphologically different metal oxide nanoparticles made from iron, manganese, titanium, copper, zinc, zirconium, cobalt, nickel, tungsten, silver, and vanadium. It also covers respective composites and their function and application in the field of electrochemical and photoelectrochemical sensing of chemical and biochemical species. The proper incorporation of chemical functionalities into these nanomaterials warrants effective detection of target molecules including DNA hybridization and sensing of DNA or the formation of antigen/antibody complexes. Significant data are summarized in tables. The review concludes with a discussion or current challenge and future perspectives.

Metal oxide nanoparticles in electrochemical sensing and biosensing: a review

Recently, combination of molecularly imprinted polymers (MIPs) with additional features, e.g. magnetic properties, has led to good results. Compared with conventional MIPs, magnetic molecularly imprinted polymers (MMIPs) have attracted considerable attentions attributing to the fact that they not only exhibit outstanding magnetism but also have speciﬁc selective binding for template molecules. However, use of MMIPs still faces challenges such as slow mass transfer, low binding capacity, and template leakage. In this article, we review several novel applications of MMIP-based approaches that were applied to food and environmental sample analysis and can overcome these problems. We discuss on brief descriptions of advantages/disadvantages and how these methods could improve the extraction and absorption process for a variety of analytes. Also, we compare each novel magnetic extraction technique with earlier studies in analytical parameters. Finally, some of the future MMIPs-based perspectives will be given.

Application of magnetic molecularly imprinted polymer as a versatile and highly selective tool in food and environmental analysis: Recent developments and trends

This review article portrays the progress in developing novel electrochemical sensors using morphologically varied transition metal oxides. The role and applications of transition metal oxide nanoparticles of iron, titanium, manganese, zirconium, cobalt, nickel and their composites in the field of electrochemical and bio sensing are conferred in detail. Appropriate chemical functionalization of these nanomaterials guarantees the selective and sensitive determination of target molecules including DNA or creating antigen/antibody complexes. Substantial data is summed up in the tables. This review article highlights the significance of transition metal oxide nanoparticles as promising electrode modifiers for fabrication of sensors. The review ends up with a relevant discussion, existing challenges and future scopes.

Transition metal oxides in electrochemical and bio sensing: A state-of-art review

We have developed a sensitive electrochemical sensor for Organophosphorus pesticide methyl parathion (MP) using silver particles supported graphene nanoribbons (Ag@GNRs). The Ag@GNRs nanocomposite was prepared through facile wet chemical strategy and characterized by TEM, EDX, XRD, Raman, UV-visible, electrochemical and impedance spectroscopies. The Ag@GNRs film modified screen printed carbon electrode (SPCE) delivers excellent electrocatalytic ability to the reduction of MP. The Ag@GNRs/SPCE detects sub-nanomolar concentrations of MP with excellent selectivity. The synergic effects between special electrocatalytic ability of Ag and excellent physicochemical properties of GNRs (large surface area, high conductivity, high area-normalized edge-plane structures and abundant catalytic sites) make the composite highly suitable for MP sensing. Most importantly, the method is successfully demonstrated in vegetables and fruits which revealed its potential real-time applicability in food analysis.

Methyl parathion detection in vegetables and fruits using silver@graphene nanoribbons nanocomposite modified screen printed electrode

Non-enzymatic electrochemical platform for parathion pesticide sensing based on nanometer-sized nickel oxide modified screen-printed electrodes.

A simple and mild strategy was proposed to develop a novel electrochemical sensor based on zirconia/ordered macroporous polyaniline (ZrO2/OMP) and further used for the detection of methyl parathion (MP), one of the organophosphate pesticides (OPPs). Due to the strong affinity of phosphate groups with ZrO2 and the advantages of OMP such as high catalytic activity and good conductivity, the developed sensor showed a limit of detection as low as 2.28 × 10−10 mol L−1 (S/N = 3) by square-wave voltammograms, and good selectivity, acceptable reproducibility and stability. Most importantly, this novel sensor was successfully applied to detect MP in real samples of apple and cabbage. It is expected that this method has potential applications in electrochemical sensing platforms with simple, sensitive, selective and fast analysis.

A novel electrochemical sensor based on zirconia/ordered macroporous polyaniline for ultrasensitive detection of pesticides

An electrochemical sensor based on the three-dimensional functionalized graphene for simultaneous determination of hydroquinone and catechol

Activity prediction of hepatitis C virus NS5B polymerase inhibitors of pyridazinone derivatives

The invention discloses a preparation method of a zirconium dioxide/porous polyaniline modified electrode. The preparation method comprises the following steps: (1) dispensing a silicon dioxide microsphere layer on a glass carbon electrode subjected to cleaning treatment and airing at the room temperature; (2) soaking the electrode modified in the step (1) in a 0.25M phenylamine and 0.6M sulfuric acid solution and performing electropolymerization to form a polyaniline film layer; (3) soaking the electrode modified in the step (2) in an HF solution for etching for 45min, and washing with a great amount of water; and (4) soaking the electrode modified in the step (3) in a 5mM ZrOCl2 solution containing 0.1M KCl, performing electro-deposition to form a ZrO2 nano particle layer, and washing with the water to obtain the zirconium dioxide/porous polyaniline modified electrode. The zirconium dioxide/porous polyaniline modified electrode is prepared by the electropolymerization and the electro-deposition, and compared with the other methods, the method for preparing the zirconium dioxide/porous polyaniline modified electrode is simple, rapid, economic and effective.

Preparation method and application of zirconium dioxide/porous polyaniline modified electrode

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.

Linlin Ma

Author Tools

Chat about Author

Papers

A novel electrochemical sensor based on zirconia/ordered macroporous polyaniline for ultrasensitive detection of pesticides

An electrochemical sensor based on the three-dimensional functionalized graphene for simultaneous determination of hydroquinone and catechol

Activity prediction of hepatitis C virus NS5B polymerase inhibitors of pyridazinone derivatives

Preparation method and application of zirconium dioxide/porous polyaniline modified electrode