Screen-printed electrodes modified with carbon nanotubes or graphene for simultaneous determination of melatonin and serotonin

FEDERICO JOSE VICENTE GOMEZ; AIDA MARTIN; MARIA FERNANDA SILVA; ALBERTO ESCARPA

MIKROCHIMICA ACTA

SPRINGER WIEN

Lugar: Viena; Año: 2015 vol. 182 p. 1925 - 1931

0026-3672

Single-walled carbon nanotubes (SWCNT), multiwalledcarbon nanotubes (MWCNT) and graphene havebeen tested as carbon allotropes for the modification of carbonscreen-printed electrodes (CSPEs) to simultaneously determinemelatonin (MT) and serotonin (5-HT). Two groupsof CSPEs, both 4 mm in diameter, were explored: The firstincludes commercial SWCNT, MWCNT and graphene, thesecond includes SWCNT, MWCNT, graphene oxidenanoribbons and reduced nanoribbons that were drop castedon the electrodes. The carbon nanomaterials enhanced theelectroactive area in the following order: CSPE