Journal article

Intrinsic fluorescence from cellulose nanofibers and nanoparticles at cell friendly wavelengths

A Khalid, L Zhang, JP Tetienne, AN Abraham, A Poddar, R Shukla, W Shen, S Tomljenovic-Hanic

APL Photonics | AIP Publishing | Published : 2019

Abstract

Nanocellulose has emerged as a promising material for many biomedical applications. Depending on the source of the nanocellulose and the chemical treatment, the resulting optical properties can vary significantly. In particular, autofluorescence can exist in various wavelength ranges. Except for chlorophyll related autofluorescence, all other studies have reported intrinsic fluorescence in the blue to yellow range. However, this range coincides with the autofluorescence range of cells. Here, we report on cell friendly red fluorescence of nanocellulose fibers and nanocellulose fiber-derived nanoparticles. Photostability, spectral features, and lifetimes of fibers and nanoparticles are investi..

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Grants

Awarded by Australian Research Council


Funding Acknowledgements

This work was partly supported with the assistance of the Australian Research Council under Discovery Project Scheme No. DP1096288, University of Melbourne Interdisciplinary Seed Grant, by an award under the Merit Allocation Scheme on the National Facility of the National Computational Infrastructure. S.T.H. acknowledges an ARC Australian Research Fellowship (No. DP1096288). L.Z. and W.S. also acknowledge the Monash Institute of Medical Engineering (MIME) for MIME-Seed and SPARK funds, the Australian Research Council for the funds support through Research Hub for Energy efficient Separation (No. IH170100009) Project, and the Department of Industry, Innovation and Science (DIIS) and MyHealthTest Pty Ltd for the Innovation Connections Grant (No. ICG000457).