Abstract
Stable and non-invasive fluorescent probes for nanotoxicological investigations are greatly needed to track the fate of nanoparticles in biological systems. The potential for terbium (Tb) to act as a fluorescent probe and its effect on layered double hydroxide (LDH) nanoparticle morphology are presented in this study. Incorporation of Tb during synthesis offers a simple methodology to easily tailor LDH nanoparticle thickness. A three-fold reduction in the average crystallite thickness (from 13 to 4 nm) has been achieved, whilst preferential lateral growth of LDH nanoparticles in the a-b crystal plane has been observed with increasing Tb loadings. Remarkably, Tb–LDH nanoparticles have emitted green fluorescence with a fluorescence quantum yield of 0.044.
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The authors would like to acknowledge and thank funding support from the AIBN Challenge Project fund and the ARC Center of Excellence for Functional Nanomaterials. The authors would also like to acknowledge the kind support of the Centre of Microscopy and Microanalysis at UQ
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Musumeci, A.W., Xu, Z.P., Smith, S.V. et al. Layered double hydroxide nanoparticles incorporating terbium: applicability as a fluorescent probe and morphology modifier. J Nanopart Res 12, 111–120 (2010). https://doi.org/10.1007/s11051-008-9583-9
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DOI: https://doi.org/10.1007/s11051-008-9583-9