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Table 1 Dynamic light scattering (DLS) and zeta potentials of nanoparticles in water, Dulbecco’s modified Eagle’s medium (DMEM), and DMEM + bovine serum albumin (BSA)

From: Horseradish Peroxidase-Encapsulated Hollow Silica Nanospheres for Intracellular Sensing of Reactive Oxygen Species

Sample^a	HSNs			HRP@HSNs
Solution	H₂O	DMEM	DMEM + BSA	H₂O	DMEM	DMEM + BSA
DLS (d.nm) (±SD)	188 (± 4)	1767 (± 94)	197 (± 43)	184 (± 6)	1598 (± 127)	195 (± 19)
Zeta (mV) (±SD)	27.8 (± 0.4)	− 13.6 (± 0.7)	− 11.0 (± 0.9)	23.0 (± 1.2)	− 13.4 (± 0.3)	− 11.9 (± 0.4)

HSN hollow silica nanospheres, HRP@HSNs horseradish peroxidase-encapsulated HSNs
^aAll particles were measured at a concentration of 0.3 mg/mL. Each measurement was repeated at least three times

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