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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F11%3A43892065%21RIV12-MSM-22310___
rdf:type
skos:Concept n9:Vysledek
dcterms:description
We studied the electroanalytical performances of chemically-modified graphenes (CMGs) containing different defect densities and amounts of oxygen-containing groups, namely graphite oxide (GPO), graphene oxide (GO), thermally reduced graphene oxide (TR-GO) and electrochemically reduced graphene oxide (ER-GO) by comparing the sensitivity, selectivity, linearity and repeatability towards the oxidation of DNA bases. We have observed that for differential pulse voltammetric (DPV) detection of adenine and cytosine, all CMGs showed enhanced sensitivity to oxidation, while for guanine and thymine, ER-GO and TR-GO exhibited much improved sensitivity over bare glassy carbon (GC) as well as over GPO and GO. There is also significant selectivity enhancement when using GPO for adenine and TR-GO for thymine. Our results have uncovered that the differences in surface functionalities, structure and defects of various CMGs largely influence their electrochemical behaviour in detecting the oxidation of DNA bases. We studied the electroanalytical performances of chemically-modified graphenes (CMGs) containing different defect densities and amounts of oxygen-containing groups, namely graphite oxide (GPO), graphene oxide (GO), thermally reduced graphene oxide (TR-GO) and electrochemically reduced graphene oxide (ER-GO) by comparing the sensitivity, selectivity, linearity and repeatability towards the oxidation of DNA bases. We have observed that for differential pulse voltammetric (DPV) detection of adenine and cytosine, all CMGs showed enhanced sensitivity to oxidation, while for guanine and thymine, ER-GO and TR-GO exhibited much improved sensitivity over bare glassy carbon (GC) as well as over GPO and GO. There is also significant selectivity enhancement when using GPO for adenine and TR-GO for thymine. Our results have uncovered that the differences in surface functionalities, structure and defects of various CMGs largely influence their electrochemical behaviour in detecting the oxidation of DNA bases.
dcterms:title
Chemically Modified Graphenes for Oxidation of DNA bases: Analytical Parameters Chemically Modified Graphenes for Oxidation of DNA bases: Analytical Parameters
skos:prefLabel
Chemically Modified Graphenes for Oxidation of DNA bases: Analytical Parameters Chemically Modified Graphenes for Oxidation of DNA bases: Analytical Parameters
skos:notation
RIV/60461373:22310/11:43892065!RIV12-MSM-22310___
n9:predkladatel
n18:orjk%3A22310
n4:aktivita
n13:Z n13:P
n4:aktivity
P(GA104/09/0621), Z(MSM6046137302)
n4:cisloPeriodika
22
n4:dodaniDat
n8:2012
n4:domaciTvurceVysledku
n12:3148262
n4:druhVysledku
n14:J
n4:duvernostUdaju
n10:S
n4:entitaPredkladatele
n7:predkladatel
n4:idSjednocenehoVysledku
190128
n4:idVysledku
RIV/60461373:22310/11:43892065
n4:jazykVysledku
n16:eng
n4:klicovaSlova
SHEETS; MECHANISM; REDUCTION; NANOSHEETS; ELECTRODES; DISPERSIONS; ADENINE; ADSORPTION; GRAPHITE OXIDE; ELECTROCHEMICAL OXIDATION
n4:klicoveSlovo
n6:SHEETS n6:MECHANISM n6:NANOSHEETS n6:ELECTROCHEMICAL%20OXIDATION n6:ELECTRODES n6:REDUCTION n6:GRAPHITE%20OXIDE n6:DISPERSIONS n6:ADENINE n6:ADSORPTION
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[4883DFF9BEED]
n4:nazevZdroje
Analyst (London)
n4:obor
n19:CA
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
4
n4:projekt
n21:GA104%2F09%2F0621
n4:rokUplatneniVysledku
n8:2011
n4:svazekPeriodika
136
n4:tvurceVysledku
Goh, Madeline Shuhua Pumera, Martin Bonanni, Alessandra Sofer, Zdeněk
n4:wos
000296153200017
n4:zamer
n5:MSM6046137302
s:issn
0003-2654
s:numberOfPages
7
n11:doi
10.1039/c1an15631d
n17:organizacniJednotka
22310