To recognize some of the outstanding work published in the journal, as well as the authors behind those articles, we are delighted to announce the first Sensors & Diagnostics Outstanding Paper 2022 Award. This prize will recognise the contributions of all authors and celebrate these exceptional publications.
Each year, we will look back at the exceptionally high-quality and innovative research published during the previous calendar year and put together a shortlist of articles based on a variety of metrics including article downloads, Altmetric score, and citations. The shortlist is reviewed by the journal's Editorial Board members based on the science presented and its potential future impact.
Our 2022 winners
Paper: Highly sensitive urine glucose detection with graphene field-effect transistors functionalized with electropolymerized nanofilms
Gonzalo E. Fenoy, Waldemar A. Marmisollé, Wolfgang Knoll and Omar Azzaroni
We developed a graphene-based field-effect transistor (gFET) capable of sensing and quantifying the presence of glucose, even in urine samples. To achieve this, we established a modification procedure for the graphene channel through the electrosynthesis of an electroactive polymer, onto which we integrated the glucose oxidase enzyme.
Furthermore, we demonstrated that the device response in the presence of glucose is attributed to the pH decrease in the vicinity of the graphene channel, resulting from the enzyme-catalyzed degradation of glucose. As a result, we can monitor changes in the degree of protonation of the electroactive polymer by assessing alterations in the conductivity properties of the gFET.
Thus, we leveraged the excellent electrical properties of graphene to use it as a conductive substrate onto which controlled polymer growth is achievable through electrochemical synthesis. Additionally, by employing a polyaniline with appended amino groups, we achieved a material with significant sensitivity to pH variations, enabling the conversion of enzymatic activity into an electronic readout.
The biosensors exhibit remarkable attributes, including a low limit of detection (LOD) of 4.1 μM. They also display a glucose detection range spanning from 10 to 1000 μM under flow conditions and a response time of 190 seconds. Moreover, they operate effectively under low gate-source and drain-source voltages. As previously mentioned, these biosensors can monitor glucose levels in urine samples, showcasing their potential for developing point-of-care glucose testing devices.
Read this paper
Guidelines for nominators
Find out who is eligible for this award, about the nomination process and see who is on the selection panel.
Nominations for this outstanding paper award are currently closed.
To be eligible to receive a Sensors & Diagnostics Outstanding Paper Award you must have published an article in the journal in the previous calendar year. All submissions will be subject to initial assessment and peer review as appropriate according to the journal’s guidelines.
The editorial team draw up a shortlist of papers based on a variety of metrics including article downloads, Altmetric score, and citations.
Winner(s) are selected by the Sensors & Diagnostics Editorial and Advisory Boards.