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- W3043697762 abstract "Graphene exhibits excellent physical, electronic, and chemical properties that are highly desirable for biosensing applications. However, most graphene biosensors are based on graphene lying flat on a substrate and therefore do not utilize its maximum specific surface area for ultrasensitive detection. Herein, we report the novel use of photonic annealing on a flexographically printed graphene-ethyl cellulose composite to produce vertically aligned graphene (VAG) biosensors for ultrasensitive detection of algal toxins in drinking water. These VAG structures, which maximized the specific surface area of graphene, were formed by partial removal of the polymeric binder upon applying intense pulsed light on the printed graphene. A label-free and low-cost VAG biosensor based on a non-faradaic electrochemical impedance spectroscopy technique was fabricated. The biosensor exhibited a limit of detection of 1.2 ng/L for microcystin-LR in local tap water. Such an ultrasensitive VAG biosensor is suitable for low-cost mass production using an integrated roll-to-roll flexographic printing with rapid photonic annealing technique." @default.
- W3043697762 created "2020-07-23" @default.
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- W3043697762 date "2020-07-13" @default.
- W3043697762 modified "2023-10-12" @default.
- W3043697762 title "Vertically Aligned Graphene Prepared by Photonic Annealing for Ultrasensitive Biosensors" @default.
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- W3043697762 doi "https://doi.org/10.1021/acsami.0c08036" @default.
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