Nowadays, modified electrodes with metal nanoparticles have appeared as an alternative for the electroanalysis of various compounds. In this study, gold nanoparticles (GNPs) were chosen as interesting metal nanoparticles for modifying of carbon paste electrode (CPE). GNPs and the gold nanoparticles-modified carbon paste electrode (GNPs/CPE) were characterized by UV-Vis spectroscopy, transmissio...

Advances in design of selective interfaces and printed technology have mighty contributed to the expansion of the electroanalysis fame. The real advantage in electroanalytical field is the possibility to manufacture and customize plenty of different sensing platforms, thus avoiding expensive equipment, hiring skilled personnel, and expending economic effort. Growing developments in polymer scie...

A simple but effective method has been developed to controllably extract carbon nanotubes (CNTs) from their vertically aligned arrays on growth substrates. The intrinsic micron-scale roughness of the CNT surface enables the protruding nanotubes to make good contact with an adhesive layer which can then remove them from the array on the growth substrate. This approach allows us to manage and tai...

Porous diamond-like carbon (DLC) electrodes have been prepared, and their electrochemical performance was explored. For electrode preparation, a thin DLC film was deposited onto a densely packed forest of highly porous, vertically aligned multiwalled carbon nanotubes (VACNT). DLC deposition caused the tips of the carbon nanotubes to clump together to form a microstructured surface with an enlar...

Carbon film disk electrodes with Nafion coatings have been characterized by electrochemical impedance spectroscopy (EIS) with a view to a better understanding of their advantages and limitations in electroanalysis, particularly in anodic stripping voltammetry of metal ions. After initial examination by cyclic voltammetry, spectra were recorded over the full potential range in acetate buffer sol...

23 New electrode materials based on composite inorganic redox material–organic conducting polymer for 24 electroanalysis of dopamine were developed. The composite inorganic–organic coatings based on Prus25 sian blue (PB) and poly(3,4-ethylenedioxythiophene) (PEDOT) have been prepared by electrochemical 26 methods onto gold disk microelectrode arrays. Both insoluble and soluble forms of PB were ...

Benzalkonium chloride (BAK) is a mixture of alkyl benzyl dimethyl ammonium chlorides, which used primarily as biocide, surfactant, preservative, and antimicrobial agent in the pharmaceutical industry, particular ophthalmologic nasal solutions. However, BAK may cause harmful consequences on eye structures anterior segment. Control identity content necessary by applying sensitive detection method...