J 2020

Inkjet-printed electrochemically reduced graphene oxide microelectrode as a platform for HT-2 mycotoxin immunoenzymatic biosensing

KUDR, J., L. ZHAO, E.P. NGUYEN, H. AROLA, T.K. NEVANEN et. al.

Základní údaje

Originální název

Inkjet-printed electrochemically reduced graphene oxide microelectrode as a platform for HT-2 mycotoxin immunoenzymatic biosensing

Autoři

KUDR, J., L. ZHAO, E.P. NGUYEN, H. AROLA, T.K. NEVANEN, V. ADAM, O. ZITKA a A. MERKOCI

Vydání

BIOSENSORS & BIOELECTRONICS, OXFORD, ELSEVIER ADVANCED TECHNOLOGY, 2020, 0956-5663

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10403 Physical chemistry

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 10.618

Kód RIV

RIV/00216224:14740/20:00121453

Organizační jednotka

Středoevropský technologický institut

UT WoS

000523557300005

Klíčová slova anglicky

2D material; Antibody; Biosensor; Electrochemistry; Graphene oxide

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 29. 4. 2021 12:23, Mgr. Pavla Foltynová, Ph.D.

Anotace

V originále

The design and application of an inkjet-printed electrochemically reduced graphene oxide microelectrode for HT-2 mycotoxin immunoenzymatic biosensing is reported. A water-based graphene oxide ink was first formulated and single-drop line working microelectrodes were inkjet-printed onto poly(ethylene 2,6-naphthalate) substrates, with dimensions of 78 mu m in width and 30 nm in height after solvent evaporation. The printed graphene oxide microelectmdes were electrochemically reduced and characterized by Raman and X-ray photoelectron spectroscopies in addition to microscopies. Through optimization of the electrochemical reduction parameters, differential pulse voltammetry were performed to examine the sensing of 1-naphthol (1-N), where it was revealed that reduction times had significant effects on electrode performance. The developed microelectrodes were then used as an immunoenzymatic biosensor for the detection of HT-2 mycotoxin based on carbodiimide linking of the microelectmde surface and HT-2 toxin antigen binding fragment of antibody (anti-HT2 (10) Fab). The HT-2 toxin and anti-HT2 (10) Fab reaction was reported by anti-HT2 immune complex single-chain variable fragment of antibody fused with alkaline phosphatase (anti-IC-HT2 scFv-ALP) which is able to produce an electmactive reporter - 1-N. The biosensor showed detection limit of 1.6 ng . mL(-1) and a linear dynamic range of 6.3 - 100.0 ng . mL(-1) within a 5 min incubation with 1-naphthyl phosphate (1-NP) substrate.

Návaznosti

90043, velká výzkumná infrastruktura
Název: CIISB