Abstract: Disclosed are methods for non-cryogenic vitrification of particles, lipid particles, lipid particle compositions and mRNA vaccine compositions that include a lipid particle, the processes including the steps of providing a lipid particle within a vitrification medium on a capillary network within a desiccation chamber and providing both a heat energy and a lowered atmospheric pressure to provide for rapid vitrification without the vitrification medium or lipid particles experiencing cryogenic temperature or boiling as a result of lowered atmospheric pressure. The lipid particle can be later reconstituted after long term storage at ambient or higher temperature and still retain structural integrity and activity.

Abstract: Disclosed herein are nanoparticles comprising mannose conjugated chitosan and an inactivated influenza A virus (IAV) antigen, wherein the mannose conjugated chitosan encapsulates the inactivated IAV antigen. In some embodiments, the nanoparticle further comprises tripolyphosphate. Also disclosed are methods of reducing transmission of an influenza A virus, and methods of eliciting an immune response against an influenza A virus, in a subject compared to a control comprising administering to the subject a nanoparticle comprising mannose conjugated chitosan and an inactivated influenza A virus (IAV) antigen, wherein the mannose conjugated chitosan encapsulates the inactivated IAV antigen.

Abstract: The present disclosure relates to nanoparticle compositions for use as vaccines against Clostridium perfringens in poultry which causes necrotic enteritis in poultry. Such compositions include one or more Clostridium perfringens extracellular proteins entrapped in a polyanhydride or chitosan nanoparticle. The one or more Clostridium perfringens extracellular proteins may include one or more Clostridium perfringens toxins, such as, for example, alpha toxin (CPA), beta toxin (CPB), epsilon toxin (ETX), iota toxin (ITX), perfringolysin O (PFO), enterotoxin (CPE), beta2 toxin (CPB2), or NetB toxin. In some aspects, the composition further includes a Salmonella enteritidis flagellar protein. The present invention also includes methods for the oral delivery of one or more Clostridium perfringens extracellular proteins to the mucosal membrane of the intestinal tract of a bird of the order Galliformes.

Abstract: The present disclosure relates to nanoparticle compositions for use as vaccines against Salmonella.

Abstract: The present disclosure relates to nanoparticle compositions for use as vaccines against Clostridium perfringens in poultry which causes necrotic enteritis in poultry. Such compositions include one or more Clostridium perfringens extracellular proteins entrapped in a polyanhydride or chitosan nanoparticle. The one or more Clostridium perfringens extracellular proteins may include one or more Clostridium perfringens toxins, such as, for example, alpha toxin (CPA), beta toxin (CPB), epsilon toxin (ETX), iota toxin (ITX), perfringolysin O (PFO), enterotoxin (CPE), beta2 toxin (CPB2), or NetB toxin. In some aspects, the composition further includes a Salmonella enteritidis flagellar protein. The present invention also includes methods for the oral delivery of one or more Clostridium perfringens extracellular proteins to the mucosal membrane of the intestinal tract of a bird of the order Galliformes.

Abstract: The present disclosure relates to nanoparticle compositions for use as vaccines against Salmonella. Disclosed herein is a composition comprising: a Salmonella enteritidis outer membrane protein (OMP) or Salmonella enteritidis killed whole antigenic extracted (KAg) protein; and a polyanhydride or chitosan nanoparticle. In some embodiments, the nanoparticle further comprises flagellar protein. Disclosed herein is a vaccine comprising: a composition comprising a Salmonella enteritidis OMP protein or Salmonella enteritidis killed whole antigenic extracted (KAg) protein; a polyanhydride or chitosan nanoparticle; and a pharmaceutically acceptable carrier.

Abstract: Disclosed herein are nanoparticles comprising chitosan and an inactivated influenza A virus (IAV) antigen, wherein the chitosan encapsulates the inactivated IAV antigen. In some embodiments, the nanoparticle further comprises tripolyphosphate. In some embodiments, the nanoparticle reduces nasal shedding of an influenza A virus. In some embodiments, the nanoparticle elicits an increased amount of IgA antibody in a subject. Also disclosed are methods of reducing transmission of an influenza A virus, and methods of eliciting an immune response against an influenza A virus, in a subject compared to a control comprising administering to the subject a nanoparticle comprising chitosan and an inactivated influenza A virus (IAV) antigen, wherein the chitosan encapsulates the inactivated IAV antigen.