Table 1.

R₁ Relaxivity of MSN(Mn)-ICG/DTIC and Other Reported Regents

Nanoparticles	Longitudinal Relaxivity r1 (mM−1s−1)	Reference
PEG/Mn-HMSNs	2.46	[24]
PDA-ICG-PEG/DOX(Mn)	14.15	[40]
Fe3O4@Gd2O3	7.91	[41]
CNMNs	5.01	[42]
Cu2-xS@MnS CSNPs	1.243	[43]
USMO@MSN	5.61	[44]
PMPDA NPs	6.55	[45]
HMONs-MnOx	4.51	[46]
Fe6Gd6P6	2.7	[47]
BPpb-HFI-Gd	2.72	[48]
Commercial Gd-DTPA	4.40	[33]
MSN(Mn)-ICG/DTIC	14.33	This article