237
edits
| (5 intermediate revisions by 2 users not shown) | |||
| Line 6: | Line 6: | ||
Under different pH conditions, the hydroxyl (OH) and/or methyl ether (O-CH3) groups attached to the carbon rings (figure 1) undergo reversible structural transformations and ionizations. Restructuring a molecule changes the way it ab- sorbs light, giving rise to colour changes [4]. | Under different pH conditions, the hydroxyl (OH) and/or methyl ether (O-CH3) groups attached to the carbon rings (figure 1) undergo reversible structural transformations and ionizations. Restructuring a molecule changes the way it ab- sorbs light, giving rise to colour changes [4]. | ||
[[File:Screen Shot 2018-01-31 at 12.08.56.png| | [[File:Screen Shot 2018-01-31 at 12.08.56.png|800px]] | ||
Chemical diagram of colour-changing anthocyanin pH reaction [5] | |||
1.2 red cabbage | 1.2 red cabbage | ||
| Line 46: | Line 46: | ||
#[4] Viirj Kan. 2017. Organic Primitives: Synthesis and Design of pH-Reactive Materials using Molecular I/O for Sensing, Actuation, and Interaction. Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems Pages 989-1000. | #[4] Viirj Kan. 2017. Organic Primitives: Synthesis and Design of pH-Reactive Materials using Molecular I/O for Sensing, Actuation, and Interaction. Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems Pages 989-1000. | ||
#[5] UMass Amherst Department of Chemistry Lecture Demonstrations. | #[5] UMass Amherst Department of Chemistry Lecture Demonstrations. | ||
#[6] | #[6] https://ellieirons.com/projects/two-meadows/ | ||
[[:File:12.6 bio-lab first idea.pdf]] | [[:File:12.6 bio-lab first idea.pdf]] | ||
edits