Table 1. Mean Size (Diameter, nm) of Synthesized SPION as Measured by TEM and DLS in Water Suspensionsa.
| DLS/nm |
||||||
|---|---|---|---|---|---|---|
| sample ID | ref | NPs synthesis method | NP stabilizerb | TEM/nm | hexanec | water |
| SPION1@DMSA | (53) | coprecipitation with NaOH | DMSA58 | 5.3 ± 1.0 | 13.1 ± 3.0 | 13.5 ± 2.4 |
| SPION2@DMSA | (53) | coprecipitation without NaOH | DMSA58 | d | 10.6 ± 4.0 | |
| SPION3@DMSAe | (54) | thermal decomposition using Fe(acac)3 | DMSA58 | 5.1 ± 1.6 | 8.0 ± 1.9 | |
| SPION4@GA | (55) | thermal decomposition using iron oleate | GA22 | 6.9 ± 1.0 | 10.7 ± 2.3 | 13.0 ± 2.5 |
| SPION4@TMAOH | (55) | thermal decomposition using iron oleate | TMAOH59 | 10.0 ± 3.0 | ||
| SPION4@PA | (55) | thermal decomposition using iron oleate | PA | 13.0 ± 4.0 | ||
| SPION3@OAe | (54) | thermal decomposition using Fe(acac)3 | OA | 6.1 ± 1.3 | 10.9 ± 3.0 | |
a
The synthetic method used is indicated together with the relative reference.
b
DMSA = dimercaptosuccinic acid; GA = gallic acid; TMAOH = tetramethylammonium hydroxide; PA = protocatechuic acid; OA = oleic acid.
c
The DLS measurements were performed in n-hexane suspension on the as-prepared SPION@OA.
d
TEM images were not acquired on this sample.
e
The synthetic procedure for the preparation of SPION@OA was the same, but repeated twice, leading to slightly different mean size values.