Microplasma Synthesis of Antibacterial Active Silver Nanoparticles in Sodium Polyacrylate Solutions

Table 3

Antibacterial properties of colloidal solutions of silver nanoparticles, synthesized by microplasma discharge in 0.2 mmol⋅L⁻¹ AgNO₃ and stabilized with polyacrylate solutions.

Species of bacteria	Exposure time (h)	Quantity (CFU/cm^3)	Bactericidal action
S. aureus ATCC 25923 (F-49)	1	100	–
	6	50	–
	18	Not found	+
	48	Not found	+
E. coli ATCC 25922 (F-50)	1	40	–
	6	Not found	+
	18	Not found	+
	48	Not found	+

CFU, colony-forming units; +, pronounced antimicrobial (disinfecting) effect (no growth of microorganisms); –, no antimicrobial (disinfectant) action (available growth of microorganisms).