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. 2019 Sep 19;9(9):1345. doi: 10.3390/nano9091345

Table 1.

Properties of conjugates prepared during size-tuning experiments.

Coating Fe@C-NH2/BSA/Str Fe@C-NH2/Casein/Str Fe@C-NH2/Gelatin B/Str
Group “Small” “Medium” “Large” “Small” “Medium” “Large” “Small” “Medium” “Large”
Dh, nm 114–121 172–186 211–233 114–131 194–198 235–274 142–160 212–243 279–309
PdI 0.188–0.208 0.158–0.175 0.247–0.258 0.178–0.201 0.132–0.169 0.202–0.243 0.211–0.248 0.200–0.260 0.227–0.257
Zeta potential, mv −24–−25 −23–−25 −24–−25 −25–−27 −25–−26 −24–−26 −10–−12 −9–−10 −9–−10
Relaxivity, 1/mM−1 × s−1 234–265 262–322 186–230 310–354 318–340 303–345 266–306 296–377 282–324

Note: Severe aggregation was observed in the conjugate Fe@C-NH2/Gelatin B/Str synthesized at a streptavidin-to-nanocluster ratio of 10:1 immediately after the synthesis, and this conjugate was excluded from our study.