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The aim of present study was to evaluate the potential of mucoadhesive alginate-coated chitosan microparticles (A-CHMp) for oral vaccine against anthrax. The zeta potential of A-CHMp was -29.7 mV, and alginate coating could prevent the burst release of antigen in simulated gastric fluid. The results indicated that A-CHMp was mucoadhesive in nature and transported it to the peyer's patch upon oral delivery. The immunization studies indicated that A-CHMp resulted in the induction of potent systemic and mucosal immune responses, whereas alum-adjuvanted rPA could induce only systemic immune response. Thus, A-CHMp represents a promising acid carrier adjuvant for oral immunization against anthrax.

Original publication




Journal article


Artif Cells Nanomed Biotechnol

Publication Date





47 - 57


Adjuvants, Immunologic, Administration, Oral, Alginates, Animals, Anthrax, Anthrax Vaccines, Antibodies, Bacterial, Antigens, Bacterial, Bacillus anthracis, Bacterial Toxins, Biomimetic Materials, Chitosan, Female, Gastric Juice, Immunity, Innate, Immunity, Mucosal, Mice, Mice, Inbred BALB C, Neutralization Tests, Peyer's Patches, Vaccination