Table 3 Hydrodynamic diameter characterization by dynamic light scattering (DLS) analysis.

From: “Salvia officinalis extract–conjugated magnetite and selenium nanocomposites showed enhanced antibacterial and anti-biofilm activity against multidrug-resistant pathogens”

Sample

Mean Size (nm)

Std. Dev. (nm)

PDI

Temp. (°C)

Medium

SeNPs

69.4

± 3.2

0.185

25.0

Aqueous

SaO-SeNPs

69.4

± 3.8

0.238

25.0

Aqueous

Fe₃O₄NPs

74.3

± 4.5

0.231

25.0

Aqueous

SaO-Fe₃O₄NPs

74.3

± 4.2

0.155

25.0

Aqueous

SaO Extract

31.5

± 2.1

0.209

25.0

Aqueous

  1. Data are expressed as the standard deviation of triplicate independent measurements. PDI: Polydispersity Index, a dimensionless measure of size distribution breadth (values < 0.3 indicate acceptable monodispersity for pharmaceutical applications). All measurements were performed using the Malvern Zetasizer system with 173° backscatter detection angle.
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