Carbon Inks-Based Screen-Printed Electrodes for Qualitative Analysis of Amino Acids.

ABSTRACT: Due to the great significance of amino acids, a substantial number of research studies has been directed toward the development of effective and reliable platforms for their evaluation, detection, and identification. In order to support these studies, a new electrochemical platform based on PANI/ZnO nanowires' modified carbon inks screen-printed electrodes was developed for qualitative analysis of electroactive amino acids, with emphasis on tyrosine (Tyr) and tryptophan (Trp). A comparative investigation of the carbon ink before and after modification with the PANI/ZnO was performed by scanning electron microscopy and by Raman spectroscopy, confirming the presence of PANI and ZnO nanowires. Electrochemical investigations by cyclic voltammetry and electrochemical impedance spectroscopy have

SUBMITTER: Enache TA 

PROVIDER: S-EPMC9864027 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature