| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-24 22:14 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
Electrochemical evaluation of histamine on screen printed electrodes modified with biopolymer-graphene layers
Authors:
Stefan Marian IORDACHE, Ana Maria IORDACHE, George ZARNESCU, Catalin CEAUS, Laurentiu POPOVICI, Valentin GARLEANU, Cristina SERBAN, Alexandra Isabel TREFILOV, Atanasios TILIAKOS, Adriana BALAN, Ana CUCU
Affiliation:
University of Bucharest, Faculty of Physics, 3Nano-SAE Research Center, Magurele, Ilfov, 077125, Romania
E-mail
stefan@3nanosae.org; istarom@3nanosae.org
Keywords:
sensor, electrochemistry, histamine, plasma polymerization
Abstract:
Detection of spoilage in raw food supplies is an important objective for health inspectors and consumers likewise, since 1 in 3 people has suffered from food poisoning. Spoiled foods are difficult to identify, especially if the consumer has no objective means of analysis. In this respect, we propose an electrochemical evaluation sensor, which measures the histamine level in raw meat. Several screen printed electrodes were modified with biopolymer-graphene layers. The sensitive layers were deposited via physico-chemical methods: electrochemical, dropcast, chemical bond and plasma polymerization. The as obtained sensors were investigated by electrochemical means to different concentrations of histamine. The plasma polymerization technique exhibited a more sensitive response due to the thin layer of sensitive material. All the sensors indicated a low detection limit and reproducible responses.
Acknowledgement:
S.-M. Iordache was supported by the strategic grant POSDRU/159/1.5/S/133652, ”Integrated system to improve the quality of doctoral and postdoctoral research in Romania and promotion of the role of science in society” cofinanced by the European Social Found within the Sectorial Operational Program Human Resources Development 2007–2013.
Authors acknowledge research support provided under UEFISCDI Grant ctr. 142/2014, 113/2012.
|
|
|
|