Hydroxyl Radical Generating Monovalent Copper Particles for Antimicrobial Application

Table 1

Average hydrodynamic sizes, polydispersity index, and zeta potentials of CuO (150°C) and Cu_xP (200–350°C) particles in different media.

Sample	Average size (nm)	Polydispersity index	Zeta potential (mV)^a
CuO150	114	0.65	–
CuP200	369	0.42	−20.8
CuP250	451	0.49	−27.1
CuP300	341	0.53	−22.0
CuP350	517	0.6	−22.6
PBS^b	2,158	0.29	–
Tris–HCl^b	1,197	0.31	−9.6

^aZeta potentials were measured in phosphate-buffered saline (PBS at pH 6), ^bCuP300 was dispersed in PBS or tris–HCl for hydrodynamic size, polydispersity index, and zeta potential measurements.