Surface functionalization of endotracheal tubes coated with laccase-gadolinium phosphate hybrid nanoparticles for antibiofilm activity and contrasting properties.

Ventilator-associated pneumonia (VAP) is a severe hospital-acquired infection that endangers patients' treatment in intensive care units (ICUs). One of the leading causes of VAP is biofilm formation on the endotracheal tube (ETT) during ventilation. This study reports a combination of laccase-gadolinium phosphate hybrid nanoparticles (laccase@GdPO·HNPs) and enzyme mediator with an antibiofilm property coated on the surface of the ETT.

Immunogenicity of Four Doses of Double-Strength Intramuscular Hepatitis B.

Background: Hepatitis B virus potentially accelerates graft rejection and mortality in renal transplantation population. Vaccination of graft candidates without prior immunization against HBV seems essential before transplantation but some candidates of transplantation have not received HBV vaccine at the time of receiving graft. We aimed to evaluate immunogenicity of an enhanced regimen (4 doses of double-strength intramuscular shots) after kidney transplantation in candidates without history of prior HBV vaccination.