Optimising electrogenerated chemiluminescence of quantum dots via co-reactant selection

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Russell, Rebekah and Stewart, Alasdair J. and Dennany, Lynn (2016) Optimising electrogenerated chemiluminescence of quantum dots via co-reactant selection. Analytical and Bioanalytical Chemistry, 408 (25). pp. 7129-7136. ISSN 1618-2642 (https://doi.org/10.1007/s00216-016-9557-1)

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Abstract

We demonstrate that for quantum dot (QD) based electrochemiluminescence (ECL), the commonly used co-reactant does not preform as effectively as potassium persulfate. By exploiting this small change is co-reactant, ECL intensity can be enhanced dramatically in a cathodic based ECL system. However, TPA remains the preferential co-reactant based system for anodic ECL. This phenomenon can be rationalised through the relative energy level profiles of the QD to the co-reactant in conjunction with the applied potential range. This work highlights the importance of understanding the co-reactant pathway for optimising the application of ECL to bioanalytical analysis, in particular for near infrared (NIR) QDs which can be utilised for analysis in blood.

ORCID iDs

Russell, Rebekah, Stewart, Alasdair J. and Dennany, Lynn ORCID logoORCID: https://orcid.org/0000-0002-5481-1066;
  • Item type:Article
    ID code:56279
    Dates:
    Date
    Event
    1 October 2016
    Published
    25 April 2016
    Published Online
    8 April 2016
    Accepted
    Notes:The final publication is available at Springer via http://dx.doi.org/10.1007/s00216-016-9557-1
    Subjects:Science > Chemistry
    Department:Faculty of Science > Pure and Applied Chemistry
    Depositing user: Pure Administrator
    Date deposited:04 May 2016 13:51
    Last modified:11 Nov 2024 11:23
    URI:https://strathprints.strath.ac.uk/id/eprint/56279
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