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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

  • 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

  • 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