Label-Free DNA Biosensor Using Modified Reduced Graphene Oxide Platform as a DNA Methylation Assay
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F20%3A43918497" target="_blank" >RIV/62156489:43210/20:43918497 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216305:26620/20:PU138743
Výsledek na webu
<a href="https://doi.org/10.3390/ma13214936" target="_blank" >https://doi.org/10.3390/ma13214936</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma13214936" target="_blank" >10.3390/ma13214936</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Label-Free DNA Biosensor Using Modified Reduced Graphene Oxide Platform as a DNA Methylation Assay
Popis výsledku v původním jazyce
This work reports the use of modified reduced graphene oxide (rGO) as a platform for a label-free DNA-based electrochemical biosensor as a possible diagnostic tool for a DNA methylation assay. The biosensor sensitivity was enhanced by variously modified rGO. The rGO decorated with three nanoparticles (NPs)-gold (AuNPs), silver (AgNPs), and copper (CuNPs)-was implemented to increase the electrode surface area. Subsequently, the thiolated DNA probe (single-stranded DNA, ssDNAMINUS SIGN 1) was hybridized with the target DNA sequence (ssDNA-2). After the hybridization, the double-stranded DNA (dsDNA) was methylated by M.SssI methyltransferase (MTase) and then digested via a HpaII endonuclease specific site sequence of CpG (5'-CCGG-3' ) islands. For monitoring the MTase activity, differential pulse voltammetry (DPV) was used, whereas the best results were obtained by rGO-AuNPs. This assay is rapid, cost-effective, sensitive, selective, highly specific, and displays a low limit of detection (LOD) of 0.06 U.mLMINUS SIGN 1 . Lastly, this study was enriched with the real serum sample, where a 0.19 U.mLMINUS SIGN 1 LOD was achieved. Moreover, the developed biosensor offers excellent potential in future applications in clinical diagnostics, as this approach can be used in the design of other biosensors.
Název v anglickém jazyce
Label-Free DNA Biosensor Using Modified Reduced Graphene Oxide Platform as a DNA Methylation Assay
Popis výsledku anglicky
This work reports the use of modified reduced graphene oxide (rGO) as a platform for a label-free DNA-based electrochemical biosensor as a possible diagnostic tool for a DNA methylation assay. The biosensor sensitivity was enhanced by variously modified rGO. The rGO decorated with three nanoparticles (NPs)-gold (AuNPs), silver (AgNPs), and copper (CuNPs)-was implemented to increase the electrode surface area. Subsequently, the thiolated DNA probe (single-stranded DNA, ssDNAMINUS SIGN 1) was hybridized with the target DNA sequence (ssDNA-2). After the hybridization, the double-stranded DNA (dsDNA) was methylated by M.SssI methyltransferase (MTase) and then digested via a HpaII endonuclease specific site sequence of CpG (5'-CCGG-3' ) islands. For monitoring the MTase activity, differential pulse voltammetry (DPV) was used, whereas the best results were obtained by rGO-AuNPs. This assay is rapid, cost-effective, sensitive, selective, highly specific, and displays a low limit of detection (LOD) of 0.06 U.mLMINUS SIGN 1 . Lastly, this study was enriched with the real serum sample, where a 0.19 U.mLMINUS SIGN 1 LOD was achieved. Moreover, the developed biosensor offers excellent potential in future applications in clinical diagnostics, as this approach can be used in the design of other biosensors.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10406 - Analytical chemistry
Návaznosti výsledku
Projekt
<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Materials
ISSN
1996-1944
e-ISSN
—
Svazek periodika
13
Číslo periodika v rámci svazku
21
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
12
Strana od-do
4936
Kód UT WoS článku
000589695600001
EID výsledku v databázi Scopus
2-s2.0-85095754921