Detection of HER2 through Antibody Immobilization Is Influenced by the Properties of the Magnetite Nanoparticle Coating

Table 1

Hydrodynamic diameter, polydispersity index, and zeta potential of M, As-M, and Dx-M.

Sample	HD, nm	SD	ZP, mV
M	4.97	1.64	−1.10
As-M	11.48	5.68	−23.10
Dx-M	7.47	2.31	−8.56

Abbreviations. M: magnetite nanoparticles; Dx-M: dextran-modified magnetite nanoparticles; As-M: AEPTMS-modified magnetite nanoparticles; HD: hydrodynamic diameter; SD: standard deviation; ZP: zeta potential.