[EN] ANTIMICROBIAL SILVER COORDINATION COMPLEXES<br/>[FR] COMPLEXES DE COORDINATION D'ARGENT ANTIMICROBIENS
申请人:PENTA SCIENCE IND HOLDING B V
公开号:WO2021209134A1
公开(公告)日:2021-10-21
An anionic bi-coordinated silver (I) complex has antimicrobial activity and the general formula [Ag+(L2-)2]3-, wherein L2- is a ligand selected from the group consisting of 2- mercapto-4-methyl-5-thiazole acetate, 3-mercapto-1-propansulfonate, 2-mercapto-5-5 benzimidazole sulfonate and thiosalicylate. A sodium salt of the aforesaid anionic bi- coordinated silver (I) complex has antimicrobial activity and the general formula Na+3[Ag+(L2-)2]3-. A salt of the aforesaid anionic bi-coordinated silver (I) complex has antimicrobial activity and the general formula (W+)3[Ag+(L2-)2]n, wherein W+ is a cationic surface-active agent, selected from the group consisting of octenidine, chlorhexidine, benzalkonium and didecyldimethylammonium; n is 2 when W+ is octenidine or chlorhexidine; n is 1 when W+ is benzalkonium or didecyldimethylammonium. The anionic bi-coordinated silver (I) complex can be incorporated in an antimicrobial gel containing sodium hyaluronate and sodium ascorbyl phosphate. The antimicrobial gel is thermally and photochemically stable and is suitable for medical use; in particular, it may be used as a liquid bandage. The complex-containing salts show high affinity for solid surfaces and can be adsorbed on solid surfaces, thus enabling to formulate antimicrobial coatings and powders.
一种阴离子双配位银(I)配合物具有抗微生物活性,其通式为[Ag+(L2-)2]3-,其中L2-为从2-巯基-4-甲基-5-噻唑乙酸盐、3-巯基-1-丙磺酸盐、2-巯基-5-5-苯并咪唑磺酸盐和硫代水杨酸组成的配体之一。上述阴离子双配位银(I)配合物的钠盐具有抗微生物活性,其通式为Na+3[Ag+(L2-)2]3-。上述阴离子双配位银(I)配合物的盐具有抗微生物活性,其通式为(W+)3[Ag+(L2-)2]n,其中W+为从辛甘汀、氯己定、苯扎氯铵和二十二烷基二甲基溴化铵组成的阳离子表面活性剂之一;当W+为辛甘汀或氯己定时,n为2;当W+为苯扎氯铵或二十二烷基二甲基溴化铵时,n为1。该阴离子双配位银(I)配合物可被纳入含有透明质酸钠和磷酸抗坏血酸钠的抗微生物凝胶中。该抗微生物凝胶具有热稳定性和光化学稳定性,适用于医疗用途;特别是,它可以用作液体创口贴。含有该配合物的盐对固体表面具有高亲和力,可以被吸附在固体表面上,从而可以制备抗微生物涂层和粉末。