97 %), ammonium persulfate (APS, 98%), sodium metabisulfite (SBS,
99%), ferric chloride hexahydrate (FeCl3.6H2O, ≥ 98%), sodium oleate (≥ 99%), doxorubicin.HCl (DOX,
HPLC grade), fluorescein (95%), crosslinker N,N′-methylene-bis-acrylamide (MBAAm, 99%), dopamine
hydrochloride (dopamine, 98%), poly-ethylene glycol (PEG, mol. wt.
310), PSS hydrate octakistetramethylammonium (POSS), N,N′-dicyclohexylcarbodiimide (DCC, 99%), N-hydroxysuccinimide (NHS, 98%), solvents ethanol, dimethyl
sulfoxide (DMSO), chloroform, and 1-octadecane were all purchased
from Sigma-Aldrich, USA. All chemicals were directly used without
further purification. Megaohm water (18.2 MΩ.cm) was used for
all experiments.