NANOMATERIALS

From nanoparticle to supercage

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Science  13 Nov 2015:
Vol. 350, Issue 6262, pp. 784-785
DOI: 10.1126/science.350.6262.784-g

Copper (II) hydroxide [Cu(OH)2] can serve as mimic for peroxidase enzymes, provided that internal spaces can be created for substrate molecules. Cai et al. show that hollow nanoribbon cages form by adding a copper-ammonia complex to a mixture of amorphous Cu(OH)2 nanoparticles and polyvinylpyrrolidone. Copper ions from the nanoparticle surface reform into arrays of nanoribbons held together by hydrogen bonding to create a box-shaped cage with edge lengths of ~200 nm. These cages showed high activity for the reaction of peroxide with organic substrates such as 3,3′,5,5′-tetramethylbenzidine.

J. Am. Chem. Soc. 10.1021/jacs.5b09337 (2015).

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