anhydride-alt-1-octadecene), Mn 30 000–50 000
g/mol (Aldrich),
Milli-Q water (18.2 MΩ, filtered with filter pore size 0.22
μM) from Millipore, acetonitrile (HPLC grade, J. T. Baker) and
tetrahydrofuran anhydride (Carlo Erba, p.a.), iron oxide hydroxide
(Sigma-Aldrich, #371254), iron acetylacetonate (Sigma-Aldrich, 99%),
manganese acetylacetonate (Sigma-Aldrich, #245763), hexadecanediol
(Sigma-Aldrich, 90%), dodecylamine (Sigma-Aldrich, 98%), lauric acid
(Sigma-Aldrich, 99%), benzyl ether (Sigma-Aldrich, 98%), and octadecene
(Sigma-Aldrich, 90%), YCl3, YbCl3, ErCl3, ammonium fluoride, and sodium oleate, tri-n-octylphosphine oxide (Strem, 99%), tri-n-octylphosphine
(Strem, 97%), n-octadecylphosphonic acid (PolyCarbon
Industries, 99%), cadmium oxide (Sigma-Aldrich, 99.99%), selenium
(Sigma-Aldrich, 99.99%), diethylzinc (Sigma-Aldrich, 1 M in hexane)
and hexamethyldisilathiane (Sigma-Aldrich, synthesis grade), ethanol
(Sigma-Aldrich, 99.8%), methanol (Sigma-Aldrich, 99.9%), toluene (Sigma-Aldrich,
99.5%), and hexane (Sigma-Aldrich, 99%) were used without any further
purification. All reagents for cell cytotoxicity assay were purchased
from Gibco (ThermoFisher Scientific).