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. 2021 Oct 5;11(52):32750–32774. doi: 10.1039/d1ra04890b

Summary of each nanobubble generation method.

Technique Nanobubble size range (nm) Nanobubble concentration (mL−1) Polydispersity index Shell material Core material Ref no
Agitation 200–400 105 0.005–0.0296 Pluronic Octafluoropropane gas 85
No data – 270 1011 No data Phospholipid Octafluoropropane gas 113
180–200 No data 0.09–0.21 Phospholipid Octafluoropropane gas 114
No data – 580 108 No data Phospholipid Octafluoropropane gas 115
No data – 430 109 No data Phospholipid Octafluoropropane gas 2
Double emulsion polymerization No data – 290 No data No data Polymer Air 37
Hydrodynamic cavitation by a baffled high intensity cell 280–730 No data < 0.35 DI water, sodium dodecyl sulfate, methyl isobutyl carbinol or methyl amyl alcohol and DF250 CO2 118
150–650 No data No data DI water, methyl isobutyl methanol, N-pentanol Air 18
Hydrodynamic cavitation by using centrifugal multiphase pump (CMP) 50–400 109 No data DI water, α-terpineol solution Air 120
100–550 108 No data DI water, pine oil Air 121
150–400 109 No data DI water, a-terpineol Air 122
No data – 220 108 No data DI water, aluminum sulfate, non-ionic high-molecular-weight polyacrylamide flocculan Air 119
Hydrodynamic cavitation on a microfluidic platform No data – 130 108 No data DI water Air 12
Compression–decompression 100–800 109 0.18 DI water Xe, air, SF6 147
150–720 No data No data DI water, sodium dodecyl sulphate, methyl ether monoamine alkyl Air 123
Surface electrostatic nanobubble 220–300 No data No data DI water Oxygen, methane 135
Using graphene sheets 320–920 109 No data DI water, NaCl Nitrogen 129
Shirasu-porous-glass (SPG) membranes 360–720 No data 0.45–0.48 DI water, sodium dodecyl sulfate Air 130
Ultrasonic irradiation 50–220 106 No data DI water Air 131
Microbubble fragmentation 0–500 7 × 106 No data Phospholipid Octafluoropropane gas 132
Generation via nanopores membrane 50–200 6 × 107 No data DI water, sodium laureth sulfate CO2, O2, N2, ar, He 133
Electrolysis 30–250 No data No data DI water, NaOH, MnSO4 No gas required 136
No data – 200 1021 No data Water, Na2SO4 No gas required 135
60–80 1018 No data DI water, Na2SO4 No gas required 134
Plasma 50–400 No data No data DI water Air 116