Journal ArticleDOI
Electrochemical Sensors, a Bright Future in the Fabrication of Portable Kits in Analytical Systems
Reads0
Chats0
TLDR
The mechanism and different examples of DNA, enzymatic and electro-catalytic methods for electroanalytical determination of drug, food and environmental compounds are described.Abstract:
Analysis of food, pharmaceutical, and environmental compounds is an inevitable issue to evaluate quality of the compounds used in human life. Quality of drinking water, food products, and pharmaceutical compounds is directly associated with human health. Presence of forbidden additives in food products, toxic compounds in water samples and drugs with low quality lead to important problems for human health. Therefore, attention to analytical strategy for investigation of quality of food, pharmaceutical, and environmental compounds and monitoring presence of forbidden compounds in materials used by humans has increased in recent years. Analytical methods help to identify and quantify both permissible and unauthorized compounds present in the materials used in human daily life. Among analytical methods, electrochemical methods have been shown to have more advantages compared to other analytical methods due to their portability and low cost. Most of big companies have applied this type of analytical methods because of their fast and selective analysis. Due to simple operation and high diversity of electroanalytical sensors, these types of sensors are expected to be the future generation of analytical systems. Therefore, many scientists and researchers have focused on designing and fabrication of electroanalytical sensors with good selectivity and high sensitivity for different types of compounds such as drugs, food, and environmental pollutants. In this paper, we described the mechanism and different examples of DNA, enzymatic and electro-catalytic methods for electroanalytical determination of drug, food and environmental compounds.read more
Citations
More filters
Journal ArticleDOI
Interspace-controlled biosensing interface with enhanced charge transfer based on tripod DNA probes
Xin Jin,Liping Lu,Xiayan Wang +2 more
TL;DR: In this article, the hanging strand length of triple-helix DNA was used to form tripod probes immobilized via π-π interactions on a reduced graphene-oxide substrate, and the spacing between the probes was adjusted by controlling the lengths of the tripod "feet" on the substrate; that is, increased probe spacing occurred when foot size increased over the range of 6-12 bases.
Journal ArticleDOI
Synthesis and characterization of Schiff base ligand-mutliwalled carbon nanotubes as mercury-free electrochemical sensor for detecting toxic metals in aquatic treatment
Jayagopi Gayathri,Sri Sivakumar +1 more
TL;DR: In this paper , a mercury-free electrochemical sensor for the sensitive detection of toxic pollutant in environmental sources was developed, which contains hydroxyl and imine ions acting as active sites to detect the metal ions.
Journal ArticleDOI
An Efficient Electrochemical Biosensor to Determine 1,5-Anhydroglucitol with Persimmon-Tannin-Reduced Graphene Oxide-PtPd Nanocomposites
TL;DR: In this article , an electrochemical biosensor was designed to specifically detect 1,5-AG levels based on persimmon-tannin-reduced graphene oxide-PtPd nanocomposites, which were modified onto the surface of a screen-printed carbon electrode (SPCE).
Journal ArticleDOI
Plant based fabrication of CuO/NiO nanocomposite: a green approach for low-level quantification of vanillin in food samples
TL;DR: In this article , a green synthesis of metal oxide nanoparticles using Java plum leaves extract as reducing and capping source has been carried out by using advanced analytical tools viz XRD, FTIR and TEM.
References
More filters
Journal ArticleDOI
Multi-walled carbon nanotubes-ionic liquid-carbon paste electrode as a super selectivity sensor: application to potentiometric monitoring of mercury ion(II).
Hadi Khani,Mohammad Kazem Rofouei,Pezhman Arab,Vinod Kumar Gupta,Vinod Kumar Gupta,Zahra Vafaei +5 more
TL;DR: The proposed electrode was successfully used as an indicator for potentiometric determination of Hg(II) in dental amalgam and water samples and the electrode has a short response time and can be used for at least 55 days without any considerable divergence in potentials.
Journal ArticleDOI
Electrochemical DNA Hybridization Biosensors
TL;DR: The many different approaches in which electrochemical methods are used to detect DNA hybridization, as the basis of a DNA biosensors, are reviewed in this article, which can be divided into two broad classes, approaches where a redox active species is used as a label and those where changes in the DNA interface are monitored electrochemically without the use of any labels.
Journal ArticleDOI
Enzymatic glucose biosensor based on ZnO nanorod array grown by hydrothermal decomposition
TL;DR: In this paper, a glucose biosensor based on glucose oxidase (GOx) immobilized on ZnO nanorod array grown by hydrothermal decomposition was presented, which showed a linear range from 0.01to3.45mM and an experiment limit of detection of 0.1mM.
Journal ArticleDOI
A Novel DNA Biosensor Based on a Pencil Graphite Electrode Modified with Polypyrrole/Functionalized Multiwalled Carbon Nanotubes for Determination of 6-Mercaptopurine Anticancer Drug
Hassan Karimi-Maleh,Fahimeh Tahernejad-Javazmi,Necip Atar,Mehmet Lütfi Yola,Vinod Kumar Gupta,Vinod Kumar Gupta,Vinod Kumar Gupta,Ali A. Ensafi +7 more
TL;DR: In this paper, a pencil graphite electrode was modified with polypyrrole/functionalized multiwalled carbon nanotubes for the determination of 6-mercaptopurine (6-MP) is presented.
Journal ArticleDOI
Simultaneous voltammetric determination of acetaminophen, aspirin and caffeine using an in situ surfactant-modified multiwalled carbon nanotube paste electrode
TL;DR: In this paper, a carbon nanotube paste electrode modified in situ with Triton X 100 was developed for the individual and simultaneous determination of acetaminophen (ACOP), aspirin (ASA) and caffeine (CF).