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. 2020 Mar 16;25(6):1348. doi: 10.3390/molecules25061348

Table 6.

Comparison of the biological activity and the corrosion inhibition efficiency between the synthesized surfactant and the other published synthesized surfactants.

Surfactants * Test ** Unit Biological Activity Anaerobic Bacteria Media References
4,4′-(((1E,5E)-pentane-1,5-diylidene)bis(azanylylidene))bis(1-dodecylpyridin-1-ium) bromide G + Ve G − Ve Candida & Fungi
DWD mm 29–30 20–25 28–33 - - Present study
MIC mM 0.004 0.004–0.62 0.15–0.31 0.1 -
MBC or MFC mM 0.009–0.02 0.04–0.031 0.15–0.31 0.5 -
MBIC mM 0.31 0.62 - 0.5 -
MREC mM 0.31 0.62 - 0.65 -
* IE % - - - 93.8 SRB and salinity
hexamethylene-1,6-bis(N,N-dimethyl-N-dodecyldode cylammoniumbromide) (12-6-12). MIC mM 0.18 [48]
IE % 96 SRB and salinity
ethane-1,2-diyl bis(N, N-dimethyl-N-alkylammoniumacetoxy) dichlorides (m-E2-m,m = 12, 14, 16) DWD mm 11–19 10–11 18–21 [49]
N1,N2-bis(2-(3-(4-(dodecanoyloxy) phenyl)propanamido)ethyl)-N1,N2,N2-tetramethylethane-1,2-diaminimum bromide (AG12), N1, N2-bis(2-(3-(4-(tetradecanoyloxy) phenyl)propanamido)ethyl)N1,N2,N2-tetramethyl ethane-1,2diaminimum bromide (AG14), N1, N2-bis(2-(3-(4(hexadecanoyloxy) phenyl) propanamido)ethyl) N1,N2,N2-tetramethyl ethane-1,2-diaminimum bromide (AG16) DWD mm 10–18 8–23 12–23 - [50]
N-(2-(2-hydroxy ethoxy) ethyl)-N,N-dimethyloctan-1-aminium bromide (HEDOB), N-(2-(2-hydroxy ethoxy) ethyl)-N,N-dimethyldodecan-1-aminium bromide (HEDDB), N-(2-(2-hydroxy ethoxy) ethyl)-N,N-dimethylhexadecan-1-aminium bromide (HEDHB) DWD mm 15–22 16–22 13–15 [51]
MIC mM 0.5
CnH2n+1OOCCH2N+(CH2)2-(CH2)3-NHOC-(CH2)m-CONH-(CH2)3-N+(CH2)2CH2COOCnH2n+1 (with n = 8, 10, 12 and m = 2, 3, 4), MIC mM 0.064–0.512 0.032–0.512 - - - [52]
N-iso propyl N,N-dimethyl dodecan-1-aminium hydroxide DWD mm 35.5 20.75–25.75 - - - [53]
MIC mM 0.1 1.0 - 1.0 -
MBC mM 0.1 1.0 - 1.0 -
MBIC mM - - - 1.0 -
IE % 92.0 SRB and salinity
bis (N-ethyl-N,N-dimethyl dodecan-1-aminium hydroxide) phthalate DWD mm 37.5 25.5–28.0 - [53]
MIC mM 0.1 1.0 - 1.0 -
MBC mM 0.1 1.0 - 1.0 -
MBIC mM 1.0 -
IE % 94 SRB and salinity
didecyldimethylammonium chloride (DDAC) MIC mM - - - 1.3 [54]
IE % - - - 91.4 SRB and salinity

* Test: DWD, diffusion well diameter using the agar diffusion method; MIC is the minimum inhibitory concentration; MBC and MFC are the minimum bactericidal and fungicidal concentrations, respectively; MBIC is the minimum biofilm inhibitory concentration; MBEC is the minimum biofilm eradication concentration; and the IE is the inhibition efficiency. ** Unit: mm, millimeters, mM is millimoles.