Table 1.

DLS and zeta potential of five SPION samples

SPION samples	Permeability (µg/mL)	Zeta potential (mV)	DLS (nm)
GGB	1.56	−68.9	192.08
GGC	1.8	−36.1	75.66
BPC	1.89	−29.0	17.02
GGP	1.9	−45.9	99.26
CPB	2.69	−43.3	105.78

Note: Reproduced from Shi D, Sun LL, Mi G, et al. Controlling ferrofluid permeability across the blood-brain barrier model. Nanotechnology. 2014;25(7):075101. © IOP Publishing. Reproduced with permission. All rights reserved.²¹

Abbreviations: BPC, bovine serum albumin, polyethylene glycol, and collagen; CPB, collagen, polyvinyl alcohol, and bovine serum albumin; DLS, dynamic light scattering; GGB, glycine, glutamic acid, and bovine serum albumin; GGC, glycine, glutamic acid, and collagen; GGP, glycine, glutamic acid, and polyvinyl alcohol; SPION, superparamagnetic iron oxide nanoparticle.