Sustainable Technology
Sustainable Technology

Nanocellulose containing amino acids and fluorophores


A nanocellulose containing amino acids has been prepared from reaction of oxidized nanocellulose with amino acids and characterized with solution 1H NMR and IR confirming the presence of maino acids. A hydrophobic nanocellulose coated with alkyl groups has been used for preparation of fluorescent coumarine-containing nanocellulose.


Amino acids: glycine, lysine, arginine, cysteine, tryptophan

Fluorophores:  Coumarin


Potenital applications: Microencapsulation for pharmaceutical packaging, complexation of metal (Au, Ag, and Pt) or metal oxide nanoparticles.


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Modified Nanocelluloses


Modified nanocelluloses incorporating carboxylic ester or amide groups show enhanced thermal stability due to inhinition of the decomposition porcess (e.g., dehydration).  They possess over 90% crystallinity and are adhesive to hydrophobic polypropylene. Thus, modified nanocelluloses would be suitable reinforcing agents in preparation of polymer composites. 


SuCellose AT200

SuCellose EA200 (R' = ethyl)

SuCellose IPA200 (R' = isopropyl)

SuCellose CE (SuCellose CM ester)


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SuCellose CM


SuCellose CM is a nanocellulose coated with carboxylic acids and well-dispersed in water. It is an effective chelating ligand for metals including iron, copper, zinc, and others and most metal oxides.  Metal(SuCellose CM) complexes are effective catalysts in organometallic reactions such as iron-activated dye de-colorization.


Potential applications: chelating ligands for transition metals, nano-dispersant, removal of soluble metal ions and metal oxides in water treatments.


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