Functionalized Magnetic Nanoparticles for the Detection and Quantitative Analysis of Cell Surface Antigen

Table 1

Longitudinal and transversal relaxivities (𝑟₁ and 𝑟₂) of nanomag-D-spio and synthesized nanoprobe at 20 and 60 MHz at 37°C (Minispec) and the saturation magnetization and size of particles estimated by NMRD profiles data.

Particle	𝑟1 (s^−1 mM^−1)		𝑟2 (s^−1 mM^−1)		𝑟2/𝑟1		𝑀sat (Am^2/kg)	𝑟 (nm)
	20 MHz	60 MHz	20 MHz	60 MHz	20 MHz	60 MHz
Nanomag-D-spio	21.6	7.6	112	121.8	5.2	16	36.5	8.25
SPIO-J591	14. 9	7.2	83.7	106.5	5.6	14.8	28	8.05