期刊
COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES
卷 69, 期 5, 页码 675-682出版社
PUBL HOUSE BULGARIAN ACAD SCI
关键词
E. coli 0149; E. coli 0157117; ghost vaccine; silver nanoparticles; TEM
资金
- NCIPD
- University of Chemical Technology and Metallurgy
Experimental and laboratory tests were carried out in order to identify the advantages of ghost antigens obtained by treatment of the bacterial cell with silver nanoparticles in comparison to the inactivated antigens obtained by classical methods as heating or treatment with formalin. The Minimal Bactericidal Concentrations (MBC) of the hybrid material containing silver nanoparticles (PVA/AgNps), used for inactivation of the tested E. coli strains were determined and they were categorized as susceptible to the action of silver nanoparticles. The changes in the structure of the bacterial cells obtained after the treatment with the hybrid material containing silver nanoparticles or with formaldehyde, respectively, were established by TEM (Transmission electron microscopy) analysis. The advantages of the ghost vaccines are expressed in undamaged cell wall and better immunogenicity, thus resulting in faster formation of specific titer after immunization of experimental animals.
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