Disordered cellulose-based nanostructures for enhanced light scattering

Caixeiro, S.; Peruzzo, M.; Onelli, O. D.; Vignolini, Silvia; Sapienza, R.

doi:10.1021/acsami.6b15986

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Disordered cellulose-based nanostructures for enhanced light scattering

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Caixeiro, S., Peruzzo, M., Onelli, O. D., Vignolini, S., & Sapienza, R. (2017). Disordered cellulose-based nanostructures for enhanced light scattering. ACS Applied Materials and Interfaces, 9(9), 7885-7890. doi:10.1021/acsami.6b15986.

Cite as: https://hdl.handle.net/21.11116/0000-000B-FAF2-A

Abstract

Cellulose is the most abundant biopolymer on Earth. Cellulose fibers, such as the one extracted form cotton or woodpulp, have been used by humankind for hundreds of years to make textiles and paper. Here we show how, by engineering light-matter interaction, we can optimize light scattering using exclusively cellulose nanocrystals. The produced material is sustainable, biocompatible, and when compared to ordinary microfiber-based paper, it shows enhanced scattering strength (×4), yielding a transport mean free path as low as 3.5 μm in the visible light range. The experimental results are in a good agreement with the theoretical predictions obtained with a diffusive model for light propagation. © 2017 American Chemical Society.