Incorporating the visual discrimination of 2,2'-bipyridine and self-healing properties, a novel photo-switchable metallo-hydrogel system is fabricated using a pincer-type Cu(II) complex and 2,2'-azopyridine.

No abstract

By using metallo-hydrogel as a new platform, a simple and straightforward selective visual discrimination of cysteine, homocysteine and glutathione from each other as well as from other amino acids has been realized.

Due to its special coordination ability to Cu(II)-terpyridine complexes, a simple and straightforward visual recognition of p-DMAP out of its analogues has been realized via selective metallogel collapse. In combination with the selective gel collapse and the self-healing properties of metallohydrogel , its potential application towards chemo-switch is also demonstrated.

A saccharide fluorescent receptor based on 1,1'-binaphthol was developed. The boronic acids groups are directly attached to the 3,3'-positions of BINOL which acted as probes to saccharides. The methyl protected receptor R1 showed better response to D-fructose compared to other saccharides in the fluorescence quenching experiment. To improve the selectivity of D-glucose, the triethylene glycol protected receptor R2 was developed. Receptor R2 has a better water-solubility than R1 that can be applied in completely aqueous environment. With receptor R2, D-glucose has a different response to other saccharides that can be useful for the distinction of D-glucose.