@article{oai:repo.qst.go.jp:00080699,
 author = {Reineck, Philipp and N. Abraham, Amanda and Poddar, Arpita and Shukla, Ravi and Abe, Hiroshi and Ohshima, Takeshi and C. Gibson, Brant and Dekiwadia, Chaitali and J. Conesa, Jose and Pereiro, Eva and Gelmi, Amy and Bryant, Gary and Hiroshi, Abe and Takeshi, Ohshima},
 issue = {3},
 journal = {Biotechnology Journal},
 month = {Mar},
 note = {Multimodal imaging promises to revolutionize the understanding of biological
processes across scales in space and time by combining the strengths of multiple imaging techniques. Fluorescent nanodiamonds (FNDs) are biocompatible, chemically inert, provide high contrast in light- and 
electron-based microscopy, and are versatile optical quantum sensors. Here it
is demonstrated that FNDs also provide high absorption contrast in nanoscale 3D soft X-ray tomograms with a resolution of 28 nm in all dimensions. Confocal fluorescence, atomic force, and scanning electron microscopy images of FNDs inside and on the surface of PC3 cancer cells with sub-micrometer precision are correlated. FNDs are found inside ≈1 μm sized vesicles present in the cytoplasm, providing direct evidence of the active uptake of bare FNDs by cancer cells. Imaging artefacts are quantified and separated from changes in cell morphology caused by sample preparation. These results demonstrate the utility of FNDs in multimodal imaging, contribute to the understanding of the fate of FNDs in cells, and open up new possibilities for biological imaging and sensing across the nano- and microscale.},
 title = {Multimodal Imaging and Soft X-Ray Tomography of Fluorescent Nanodiamonds in Cancer Cells},
 volume = {16},
 year = {2021}
}