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AbstractBacillus amyloliquefaciens is a gram-positive bacterial species that is utilised as a probiotic in humans and animals. There are no reports of infective endocarditis (IE) in dogs. An 8-year-old, spayed, female Maltese presented with a 1-month history of fever, depression, weight loss, and hindlimb lameness. Laboratory test results indicated non-regenerative anaemia, neutrophilia, hyperglobulinemia, and proteinuria. Echocardiography revealed vegetation on the septal leaflet of the mitral valve and thromboemboli in the left atrium. Consecutive blood culture results revealed that the blood samples were consistently positive for Bacillus amyloliquefaciens, which is generally considered a probiotic bacterial species for animals. Broad-spectrum antibiotics (amoxicillin-clavulanic acid and cefotaxime) and anticoagulants (clopidogrel and rivaroxaban) were administered for 4 months. The clinical signs were responsive to antibiotic treatment. After 4 months, the dog was no longer febrile and the size of the thromboemboli in the left atrium had decreased. Bacteria were no longer isolated in blood cultures after antibiotic therapy. To the best of our knowledge, this is the first case report of canine IE caused by bactaeremic infection with Bacillus amyloliquefaciens.

The Li–CO2battery has gathered considerable attention due to its high energy density and the possibility of utilizing carbon dioxide. However, their practical application is limited by kinetic and safety challenges. In this work, a highly stable and conductive NASICON-type solid electrolyte (Li1.4Al0.4Ti1.6(PO4)3) is utilized to address the safety aspect. Additionally, a Ru catalyst is introduced to decrease polarization and improve battery performance. The LATP solid electrolyte synthesized through a solution-based method exhibited fine granularity and high uniformity. After sintering, a dense pellet without cracks and with no phase changes was produced. The LATP pellet exhibits an ionic conductivity of 9.2 ×10−4 S/cm. The fabricated Li–CO2battery delivers a specific capacity of 6531 mAh/g at a current density of 150 mA/g and undergoes 50 cycles at a current supply of 50 mA/g with a cut-off capacity of 500 mAh/g. The MWCNT with Ru electrode - LATP electrolyte configuration demonstrates improved battery performance with 50-cycle life and low polarization of 1.3 V.