Login / Signup

Binder driven self-assembly of metal-organic cubes towards functional hydrogels.

Papri SutarVenkata M SureshKolleboyina JayaramuluArpan HazraTapas Kumar Maji
Published in: Nature communications (2018)
The process of assembling astutely designed, well-defined metal-organic cube (MOC) into hydrogel by using a suitable molecular binder is a promising method for preparing processable functional soft materials. Here, we demonstrate charge-assisted H-bonding driven hydrogel formation from Ga3+-based anionic MOC ((Ga8(ImDC)12)12-) and molecular binders, like, ammonium ion (NH4+), N-(2-aminoethyl)-1,3-propanediamine, guanidine hydrochloride and β-alanine. The morphology of the resulting hydrogel depends upon the size, shape and geometry of the molecular binder. Hydrogel with NH4+ shows nanotubular morphology with negative surface charge and is used for gel-chromatographic separation of cationic species from anionic counterparts. Furthermore, a photo-responsive luminescent hydrogel is prepared using a cationic tetraphenylethene-based molecular binder (DATPE), which is employed as a light harvesting antenna for tuning emission colour including pure white light. This photo-responsive hydrogel is utilized for writing and preparing flexible light-emitting display.
Keyphrases
  • drug delivery
  • hyaluronic acid
  • wound healing
  • tissue engineering
  • cancer therapy
  • pet ct
  • single molecule
  • room temperature
  • light emitting
  • drug release
  • ionic liquid
  • liquid chromatography