Flexible zinc oxide-based biosensors for detection of multiple analytes
Source abstract
Abstract
Zinc oxide biosensor platforms provide high electroactive surface area and aid in simultaneous detection of biomolecules such as ascorbic acid, epinephrine, and uric acid. Two different zinc oxide nanostructures, one of which was modified with potassium chloride, were directly electrodeposited onto flexible carbon cloth. Simultaneous characteristic oxidation peaks for the three analytes were resolved using differential pulse voltammetry. Comparison showed that potassium-chloride-modified zinc oxide exhibited the highest intensity of distinct oxidation peaks. During simultaneous detection, this biosensor could readily detect the following analyte concentrations: 6.0 μM for ascorbic acid, 1.0 μM for epinephrine, and 0.5 μM for uric acid. The biosensor was also scaled down to a single carbon thread. Additionally, a simple experiment was performed to demonstrate that photoexcitation of the biosensor exhibited enhanced current. These results indicate that the biosensors are robust, reliable and exhibit typical photoexcitation properties of zinc oxide, which has promise to enhance biosensor sensitivity.Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electrochemical Analysis and Applications · Electrochemical sensors and biosensors · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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