Batch synthesis of polyoxometalate-based phosphonium compounds by one-step room-temperature mechanochemical process, and their morphology-dependent antibacterial activities

Phosphonium-based ionic liquids as antifungal agents for conservation of heritage sandstone

“…Additionally, it is clear that cationic biocides kill bacteria by binding to negatively charged cell surface and disrupting the cell membranes, in which different charge distributions and alkyl chain length play a key role in the antibacterial efficacy. 46,59 In this study, three phosphonium-based ILs with different long alkyl chains (C 12 and C 14 ) exhibit antifungal activity, which is consistent with previous reports indicating that phosphonium compounds containing a long alkyl chain (C 8 -C 18 ) usually exert antimicrobial capabilities. 45,60,61 Regarding the [P 44412 ][POM] with a shorter alkyl chain, a high level of antifungal activity is observed, which may be affected by many potential important factors, such as hydrophobic-hydrophilic balance, 62,63 adsorption, and critical micelle concentration.…”

The antibacterial activity of polyoxometalates: structures, antibiotic effects and future perspectives

“…Very recently, a series of compounds composed of POM and phosphonium groups (MePh 3 P) showed also antibacterial activity against both Staphylococcus aureus and Escherichia coli , which was even stronger than that of the antibiotic ampicillin as judged by the size of the inhibitory zones on agar plates. 89 The (MePh 3 P) n –POM systems ( n = 3 or 4) are based on the Keggin-type POMs [SiW 12 O 40 ] 4– , [PW 12 O 40 ] 3– or [PMo 12 O 40 ] 3– and the quaternary phosphonium salt methyl triphenyl phosphonium iodide (MePhPI). It was described that the antibacterial activity increased with increasing content of crystal water within the structures.…”

Acidic Dressing Based on Agarose/Cs2.5H0.5PW12O40 Nanocomposite for Infection Control in Wound Care

“…62,69 The confidence level of results is as follows: *p < 0.05, **p < 0.005, ***p < 0.001, and ****p < 0.00001. This assumption is supported by Hu et al, 54 who demonstrated that a concentration of [PW 12 O 40 ] 3− as high as 1000 ppm did not inhibite the growth of S. aureus or E. coli. We found that this is also true for a fungal species.…”