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Percentages of released lanthanide ions from silica-coated UCNPs obtained via ICP-OES after 24 h of dispersion in water.
| Sample | c = 200 μg/mL UCNP cores | c = 200 μg/mL silica-coated UCNPs | ||||
| Y [%] |
Yb [%] |
c (UCNP cores) [µg/mL] |
Y [%] |
Yb [%] |
||
| UC@thin_NH2 | 0.97 ± 0.01 | 0.18 ± 0.03 | 96 | 1.88 ± 0.07 | 0.41 ± 0.05 | |
| UC@thick_NH2 | 0.33 ± 0.02 | 0.20 ± 0.02 | 33 | 0.97 ± 0.03 | 0.15 ± 0.08 | |
