Anion-triggered melamine based self-assembly and hydrogel.
We found that melamine in its protonated form could be triggered by oxoanions such as NO(3)(-), PO(4)(3-), ATP, and SO(4)(2-) to form superstructures and to gelate a large amount of water molecules, presumably resulting from the electrostatic and hydrogen bonding interactions operating in a synergistic manner; the gelation can be reversibly switched off/on by increasing/decreasing pH or temperature.
Shen
Jiang-Shan
JS
Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
Cai
Qing-Guo
QG
Jiang
Yun-Bao
YB
Zhang
Hong-Wu
HW
D000838:Anions / Q000737:chemistry*; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000737:chemistry*; D006860:Hydrogen Bonding; D006863:Hydrogen-Ion Concentration; D009566:Nitrates / Q000737:chemistry; D010710:Phosphates / Q000737:chemistry; D055672:Static Electricity; D013431:Sulfates / Q000737:chemistry; D013696:Temperature; D014227:Triazines / Q000737:chemistry*
D000838:Anions; D009566:Nitrates; D010710:Phosphates; D013431:Sulfates; D014227:Triazines; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; C011907:melamine