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Table 2 Dissolution half-times of nanoparticles calculated from k dis

From: Dissolution and biodurability: Important parameters needed for risk assessment of nanomaterials

Nanoparticles Conditions Rate constants obtained from literature Calculated half-time
Ag 4.8 nm Citrate stabilized 4.1 day−1 [52] 0.169 days (4 hours)
Ag 60 nm Citrate stabilized 0.74 day−1 [52] 0.963 days (22.5 hours)
Ag 4.8 nm Citrate stabilized, in deionised water, at 0.05 mg/L total silver 0.88 day−1 [52] 0.79 days (18.9 hours)
Ag 4.8 nm Citrate stabilized in deionised water, at 0.2 mg/L total silver 0.53 day−1 [33] 1.3 days (31.4 hours)
Ag 4.8 nm Citrate stabilized in deionised water, at 2 mg/L total silver 0.023 day−1 [33] 30 days (723 hours)
Ag 10.6 nm Tris-HOAc buffer in 10 M H2O2 0.001 nM Ago 0.128 day−1 [105] 5.4 s
Ag10.6 nm Tris-HOAc buffer in 10 M H2O2 0.005 nM Ago 0.122 s−1 [105] 582 s
TiO2 1 - 24.4 nm Industrial In aqueous NaCl solutions at temperatures of 25 and 37°C - pH ranging between 3.0 and 3.3. 3.3 × 10−2 h−1 [107] 21 hours