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MAYORGA-MARTINEZ, C. SOFER, Z. PUMERA, M.
Originální název
Binary Phosphorene Redox Behavior in Oxidoreductase Enzymatic Systems
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Phosphorene is a two-dimensional material that has many advantageous electronic, electrochemical, and optical properties. However, phosphorene possesses a relatively poor stability in ambient atmosphere. This disadvantage limits its application in several systems and particularly in electrochemical biosensors. Here we evaluate phosphorene as an electrochemical biosensing platform in two different mediator-based oxidoreductase enzymatic systems (glucose oxidase (GOx) and peroxidase from horseradish (HRP)), in which their detection is based on the reduction or oxidation of a mediator. In both cases, the used mediator is the same, ferrocene methanol (FcMeOH). Enhanced electrochemical activity is observed only in the reductive system (HRP-based biosensor) when compared to the oxidative counterpart (GOx-based biosensor). This phenomenon is attributed to the fact that in a reductive environment the phosphorene structure remains intact, while in an oxidative potential, the phosphorene is readily oxidized. In this way, the electroactivity of phosphorene as a sensing platform is strongly dependent on the type of mediator-based enzymatic system. These findings of binary nature of phosphorene are of high importance for construction of phosphorene-sensing platforms and in the development of enzyme logic systems
Klíčová slova
black phosphorus, oxidoreductase enzymes, mediator-based enzymatic biosensor, second-generation biosensor
Autoři
MAYORGA-MARTINEZ, C.; SOFER, Z.; PUMERA, M.
Vydáno
17. 10. 2019
ISSN
1936-0851
Periodikum
ACS Nano
Ročník
13
Číslo
11
Stát
Spojené státy americké
Strany od
13217
Strany do
13224
Strany počet
8
URL
https://pubs.acs.org/doi/full/10.1021/acsnano.9b06230
BibTex
@article{BUT160763, author="Carmen C. {Mayorga-Martinez} and Zdeněk {Sofer} and Martin {Pumera}", title="Binary Phosphorene Redox Behavior in Oxidoreductase Enzymatic Systems", journal="ACS Nano", year="2019", volume="13", number="11", pages="13217--13224", doi="10.1021/acsnano.9b06230", issn="1936-0851", url="https://pubs.acs.org/doi/full/10.1021/acsnano.9b06230" }