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Jana Tulinska - NanoImpactNet

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Phase<br />

Crystal structure<br />

Chemical composition<br />

Particle concentration (%)<br />

Shape (by TEM)<br />

Crystallite size distribution by<br />

TEM (nm)<br />

Surface chemistry<br />

Average size in original<br />

suspension by DLS<br />

pH<br />

Zeta potential in milliQ water at<br />

pH 7 (mV)<br />

Contaminants of toxicological<br />

concern<br />

Magnetite with coating<br />

Water dispersion<br />

Spinel (octahedral)<br />

Fe, O<br />

26<br />

Oblong<br />

5-12<br />

Oleate micelle coating<br />

Too high concentration<br />

Too high concentration<br />

-31.9<br />

Free oleate (960 ppm), Na (26.000 ppm),<br />

Ca (1.300 ppm), K (730 ppm)<br />

Magnetite, no coating<br />

Water dispersion<br />

Spinel (octahedral)<br />

Fe, O<br />

2.8<br />

Oblong<br />

5-13<br />

Uncoated<br />

Too high concentration<br />

Too high concentration<br />

-2.8<br />

None

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