Noodle based analytical devices for cost effective green chemical analysis

Kanokwan Kiwfo; Wasin Wongwilai; Pathinan Paengnakorn; Sasithorn Boonmapa; Suphasinee Sateanchok; Kate Grudpan

doi:10.1016/j.talanta.2017.12.056

Noodle based analytical devices for cost effective green chemical analysis

Talanta. 2018 May 1:181:1-5. doi: 10.1016/j.talanta.2017.12.056. Epub 2017 Dec 24.

Authors

Kanokwan Kiwfo¹, Wasin Wongwilai², Pathinan Paengnakorn³, Sasithorn Boonmapa¹, Suphasinee Sateanchok¹, Kate Grudpan⁴

Affiliations

¹ Center of Excellence for Innovation in Analytical Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Chemistry and, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Graduate program in Chemistry, Chiang Mai University, Chiang Mai 50200, Thailand.
² Center of Excellence for Innovation in Analytical Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand; Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200, Thailand.
³ Center of Excellence for Innovation in Analytical Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand.
⁴ Center of Excellence for Innovation in Analytical Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Chemistry and, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200, Thailand.

PMID: 29426486
DOI: 10.1016/j.talanta.2017.12.056

Abstract

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.

Keywords: Acid-base; Copper; Cost effective; Down scaling; Green chemical analysis; Microfluidics; Natural material based chemical analysis; Noodle based analytical device.