A simple electrochemical biosensor for the detection of methylated DNA and for methyltransferase activity monitoring

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU134921" target="_blank" >RIV/00216305:26620/19:PU134921 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43210/19:43917138

Výsledek na webu

<a href="https://mendelnet.cz/artkey/mnt-201901-0120_A-simple-electrochemical-biosensor-for-the-detection-of-methylated-DNA-and-for-methyltransferase-activity-monit.php?back=/magno/mnt/2019/mn1.php?secid=4" target="_blank" >https://mendelnet.cz/artkey/mnt-201901-0120_A-simple-electrochemical-biosensor-for-the-detection-of-methylated-DNA-and-for-methyltransferase-activity-monit.php?back=/magno/mnt/2019/mn1.php?secid=4</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A simple electrochemical biosensor for the detection of methylated DNA and for methyltransferase activity monitoring

Popis výsledku v původním jazyce

DNA methylation is one of the well-known epigenetic mechanism which plays a crucial role in the development of various diseases, such as cancer, cardiovascular diseases or diabetes. Electrochemical biosensors promise excellent results for clinical diagnostics, especially in term of their sensitivity, stability, selectivity, portability, they are cost-effective, easy-to-use and provides a fast response. In this study, simply, reliably and selective DNA based electrochemical biosensor for detection of methylated DNA was fabricated. The proposed biosensor was modified with the synthesised reduced graphene oxide combined with gold nanoparticles (rGO-AuNPs). This nanocomposite has shown a strong affinity to the DNA probe and demonstrated promising analytical characteristics. The electrochemical impedance spectroscopy (EIS) was used for the characterization of interface properties of the gold electrode (GE). Additionally, the sensitivity of the developed biosensor was performed by differential pulse voltammetry (DPV) to investigate the activity of enzyme methyltransferase M.SssI (MTase). Fabricated biosensor offers quite a low detection limit (LOD), which was 3.2 U/ml and limit of quantification (LOQ) was 3.3 U/ml.

Název v anglickém jazyce

A simple electrochemical biosensor for the detection of methylated DNA and for methyltransferase activity monitoring

Popis výsledku anglicky

DNA methylation is one of the well-known epigenetic mechanism which plays a crucial role in the development of various diseases, such as cancer, cardiovascular diseases or diabetes. Electrochemical biosensors promise excellent results for clinical diagnostics, especially in term of their sensitivity, stability, selectivity, portability, they are cost-effective, easy-to-use and provides a fast response. In this study, simply, reliably and selective DNA based electrochemical biosensor for detection of methylated DNA was fabricated. The proposed biosensor was modified with the synthesised reduced graphene oxide combined with gold nanoparticles (rGO-AuNPs). This nanocomposite has shown a strong affinity to the DNA probe and demonstrated promising analytical characteristics. The electrochemical impedance spectroscopy (EIS) was used for the characterization of interface properties of the gold electrode (GE). Additionally, the sensitivity of the developed biosensor was performed by differential pulse voltammetry (DPV) to investigate the activity of enzyme methyltransferase M.SssI (MTase). Fabricated biosensor offers quite a low detection limit (LOD), which was 3.2 U/ml and limit of quantification (LOQ) was 3.3 U/ml.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

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)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

MendelNet 2019 Proceedings of 26th International PhD Students Conference

ISBN

978-80-7509-688-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

621-626

Název nakladatele

Mendel University in Brno

Místo vydání

Neuveden

Místo konání akce

Brno

Datum konání akce

6. 11. 2019

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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