Molecular detection by liquid gated Hall effect measurements of graphene
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00501420" target="_blank" >RIV/68378271:_____/18:00501420 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/c7nr06330j" target="_blank" >http://dx.doi.org/10.1039/c7nr06330j</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c7nr06330j" target="_blank" >10.1039/c7nr06330j</a>
Alternative languages
Result language
angličtina
Original language name
Molecular detection by liquid gated Hall effect measurements of graphene
Original language description
Conventional electrical biosensing techniques include Cyclic Voltammetry (CV, amperometric) and ion-sensitive field effect transistors (ISFETs, potentiometric). However, CV is not able to detect electrochemically inactive molecules where there is no redox reaction in solution, and the resistance change in pristine ISFETs in response to low concentration solutions is not observable. Here, we show a very sensitive label-free biosensing method using Hall effect measurements on unfunctionalized graphene devices where the gate electrode is immersed in the solution containing the analyte of interest. This liquid gated Hall effect measurement (LGHM) technique is independent of redox reactions, and it enables the extraction of additional information regarding electrical properties from graphene as compared with ISFETs, which can be used to improve the sensitivity. We demonstrate that LGHM has a higher sensitivity than conventional biosensing methods for L-histidine in the pM range.n
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nanoscale
ISSN
2040-3364
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
6
Pages from-to
930-935
UT code for WoS article
000423259000005
EID of the result in the Scopus database
2-s2.0-85040927118