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Table 1 Particle size and zeta potential of gold nanoparticles (AuNPs)

From: Orally administered gold nanoparticles protect against colitis by attenuating Toll-like receptor 4- and reactive oxygen/nitrogen species-mediated inflammatory responses but could induce gut dysbiosis in mice

AuNPs

Size by DLSa

Intensity-weighted peak (nm)

Zeta potentialb

Water

DMEM + FBS

Water

DMEM + FBS

Au-5 nm/PVP

8.7 ± 0.4

92.1 ± 1.4

0.2 ± 0.7

0.2 ± 1.1

Au-5 nm/Citrate

8.6 ± 0.6

173.2 ± 2.4

− 30.8 ± 2.7

− 3.5 ± 0.7

Au-5 nm/TA

11.6 ± 0.9

90.0 ± 1.5

− 37.4 ± 9.6

− 6.0 ± 0.4

Au-10 nm/TA

18.3 ± 1.7

88.4 ± 1.4

− 36.7 ± 5.1

− 5.8 ± 0.8

Au-15 nm/TA

25.6 ± 1.2

58.8 ± 1.2

− 23.3 ± 5.7

− 6.2 ± 0.6

Au-30 nm/TA

56.5 ± 1.4

78.1 ± 1.1

− 25.3 ± 1.7

− 5.8 ± 0.5

Au-60 nm/TA

89.8 ± 2.4

108.5 ± 2.5

− 25.0 ± 0.3

− 6.1 ± 0.5

  1. Data are presented as the mean ± standard deviation of three replicates
  2. DLS dynamic light scattering, DMEM Dulbecco’s modified Eagle medium, FBS fetal bovine serum
  3. aThe DLS measurement was performed at 1/40 OD of AuNPs
  4. bThe zeta potential was measured at 1/10 OD of AuNPs