Nnu Ammonium Quaternary maka Ọgwụ Mgbochi Ọrịa

Nnu Quaternary ammonium (QAS) bụ ihe ndị mejupụtara cationic nwere otu alkyl n'ogologo agbụ ígwè nke C8–C18, bụ́ ndị a na-agbaze mmiri ma nwee ike iji ha mee ihe dị ka ihe na-egbu nje n'ụlọ ọrụ ákwà.

QAS bụ ngwakọta ionic nwere nitrogen ammonium quaternary, otu alkyl ma ọ bụ aryl anọ jikọtara na nitrogen a, yana ion anionic dị ka chloride ma ọ bụ bromide. N'ime otu alkyl anọ, otu bụ otu alkyl ogologo nwere ihe karịrị hydrocarbons asatọ ma na-ejekwa ozi dị ka otu hydrophobic. Otu hydrophobic na QAS na-emetụta ọrụ antimicrobial ha (Tiller et al., 2001; Zhao na Sun, 2007). Site na hydrophobic siri ike, ọrụ antimicrobial dị ike karị QAS nwere (Zhao na Sun, 2008) (Fig. 16.1 na Tebụl 16.1). Ọtụtụ ngwakọta QAS nwere ọrụ surfactant. QAS bụ biocides dị irè mgbe ejiri ya na mmiri mmiri na dị ka ọgwụ nje mmiri. Mgbe ejikọtara QAS na elu eriri, ọrụ ha nwere ike igbochi dabere na otu esi ejikọ ha na nhazi ikpeazụ nke QAS n'elu. QAS nke etinyere n'anụ ahụ na eriri nwere ike inye ọrụ antimicrobial site na ịhapụ ha nwayọ nwayọ site na elu eriri n'oge ojiji, nke nwere ike inye ọrụ ebumnuche nke ihe ndị ahụ.