pH and anion sensitive silver(I) coordinated melamine hydrogel with dye absorbing properties: metastability at low melamine concentration

Ag(I)-melamine coordination polymer produces a metastable hydrogel at 1 : 1 molar ratio but 1 : 2 molar ratio produces a stable gel which has the helical fibrillar morphology, the ability of selective dye absorption and is highly sensitive to pH and addition of anions.