Marcelo Firmino de Oliveira

• Abstract

  Considering the importance of herbal medicines based on Cannabis Sativa extract, as well as the growing demand for this type of treatment, this project aims at the development of low-cost disposable voltammetric sensor devices (electronic tongues) for the analysis of substances of pharmacological interest. Both samples and standard solutions of the analytes investigated should be diluted …

  Development of disposable voltammetric sensors for analysis of cannabinoids in samples of pharmaceutical interest, AP.R

• Abstract

  This project aims to develop alternative voltammetric methodologies for the analysis of trace elements of cocaine and D-9-THC (the most potent active principle of marijuana) through printed electrodes, for use in forensic laboratories and crime scenes. The aforementioned substances should be inserted on the electrode surfaces of printed electrodes and the electrochemical behavior of the a…

  Development of voltammetric sensors for determination of cocaine and delta-9-tetrahydrocannabinol in samples seized by the police, AP.R

• Abstract

  This project aims the research and development of transducers for the voltammetric determination of cocaine, MDMA (the main psychoactive component of ecstasy), LSD and D-9-tetrahydrocannabinol (the main psychoactive component of marijuana) in samples of narcotics seized by the police. Considering the fact that all these species show electrochemical response by chemical oxidation or reduct…

  Development of chemically modified electrodes for the voltammetric determination of cocaine, MDMA, LSD, and D-9-tetrahydrocannabinol in samples of forensic interest, AP.R

(Only some records are available in English at this moment)

• Abstract

  According to ONU reports, the use of illicit drugs has increased, as well as the need for sensitive instrumental analytical techniques for the detection of these substances. Therefore, the present research project aims to study the oxidation-reduction of MDMA and its derivates on the surface of chemically carbon paste electrodes modified with 4 Schiff-type complexes: [Co (salen)], [Cu (sa…

  Study of the redox process of the molecules of MDMA, MDA and MDEA on surface of a chemically modify electrode with Schiff Bases: development of a voltammetric sensor for forensic interest, BP.IC

• Abstract

  This project is proposed the development of voltammetry sensors for the determination of cocaine police seized samples. Therefore, it is proposed to develop microfluidic devices (papertrodos) and the study in printed carbon electrode and conventional glassy carbon electrode. The voltammetry cocaine study will be conducted in unmodified electrode, and their surfaces modified with vanadium …

  Development of voltammetric sensors to determine cocaine seized samples, BP.IC

• Abstract

  In view of the continued presence in the news about the seizure of drugs in various places such as airports, highways, etc., and according to the reports of recent years made by the UN, where they present significant increase in the consumption of drugs in everyone, this research project proposes to study the voltammetric determination of cocaine using working electrodes, platinum Metrohm…

  Development of chemically modified electrodes (NDEs) with complexes of Schiff base for determination of cocaine: voltammetric studies and application of density functional theory (DFT), BP.IC

(Only some records are available in English at this moment)

• Abstract

  Indirect fentanyl consumption by ingestion of MDMA samples has been causing deaths due to overdose. This research project aims to apply modified sensors and screen-printed electrodes to detect fentanyl. The use of Surface Enhanced Raman Spectroscopy (SERS) will make the project even more robust. The ultimate goal is to construct an electrode that can be employed as a commercial sensor, th…

  Fentanyl analysis at carbon paste electrodes modified with Schiff base complexes and screen-printed electrodes coupled to characterization of seized amphetamine samples employing SERS: contributions to public healthcare policies, BE.EP.IC

• Abstract

  This project aims the research and development of transducers for the voltammetric determination of cocaine and LSD in samples of narcotics seized by the police. Considering the fact that all these species show electrochemical response by chemical oxidation or reduction in conventional electrode surface, this project proposes the chemical modification of electrode surface by thin films, u…

  Development of screen printed chemically modified electrodes for the voltammetric determination of cocaine and LSD in samples of forensic interest, BE.PQ