Noodle based analytical devices for cost effective green chemical analysis

Publication date: 1 May 2018
Source:Talanta, Volume 181
Author(s): Kanokwan Kiwfo, Wasin Wongwilai, Pathinan Paengnakorn, Sasithorn Boonmapa, Suphasinee Sateanchok, Kate Grudpan
Noodle based analytical devices are proposed for cost effective green chemical analysis. Two noodle based analytical platforms have been examined. Conditions for flow with laminar behaviors could be established. Detection may be via a webcam camera or a flatbed scanner. Acid-base reactions were chosen as a model study. The assays of acetic acid and sodium hydroxide were investigated. Apart from bromothymol blue, simple aqueous extract of butterfly pea flower was used as a natural reagent. Another model was the assay of copper (Cu²⁺) which was based on the redox reaction of copper (Cu²⁺) with iodide to produce tri-iodide forming brown/black product with starch which already exists in the noodle platform. Demonstration to apply the noodle platforms for real samples was made.

Graphical abstract

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