Abstract: Devices and methods are described for disinfection of pathogenic organisms using pulsed DC field electroporation. For example, this disclosure describes disinfection of pathogenic organisms using pulsed DC field electroporation for lung infection treatment, blood infection treatment, sterilization, and respirators.

Abstract: A synthetic pulmonary surfactant composition for use in the treatment of inflammatory or cell proliferation disorders of the lungs is provided. The composition comprises a lipidaceous carrier and a peptide complex of poly-L-lysine or a pharmaceutically acceptable salt thereof and poly-L-glutamic acid or poly-L-aspartic acid or a pharmaceutically acceptable salt thereof, the peptide complex having a charge-neutralised region and a positively-charged region. The synthetic pulmonary surfactant composition may be provided in an inhalable formulation. The synthetic pulmonary surfactant composition may also be combined with a drug for use in treating a lung infection, particularly a lung infection characterised by inflammation in the lungs so that the combination provides dual immunomodulatory effects.

Abstract: The disclosure describes a composition comprising a lipidaceous carrier and a peptide complex formed from poly-L-lysine or a salt thereof; and either poly-L-glutamic acid or poly-L-aspartic acid, or a salt thereof. The composition can be used to prevent or treat a disease related to pulmonary surfactant dysfunction, such as hyaline membrane disease (HMD), respiratory distress syndrome (RDS), hydrocarbon poisoning, near-drowning, HIV/AIDS-related lung diseases, adult respiratory distress syndrome (ARDS) or acute lung injury (ALI), asthma, tuberculosis (TB) or severe acute respiratory syndrome (SARS). Alternatively, the composition can be used to increase the permeability of a pharmaceutical compound or composition across a membrane of a subject or to act as a carrier. The poly-L-lysine or salt thereof is longer than the poly-L-glutamic acid or poly-L-aspartic acid so that the complex that forms has a charge-neutralized region and a positively-charged region.

Abstract: The disclosure describes a composition comprising a lipidaceous carrier and a peptide complex formed from poly-L-lysine or a salt thereof; and either poly-L-glutamic acid or poly-L-aspartic acid, or a salt thereof. The composition can be used to prevent or treat a disease related to pulmonary surfactant dysfunction, such as hyaline membrane disease (HMD), respiratory distress syndrome (RDS), hydrocarbon poisoning, near-drowning, HIV/AIDS-related lung diseases, adult respiratory distress syndrome (ARDS), asthma, tuberculosis (TB) or severe acute respiratory syndrome (SARS). Alternatively, the composition can be used to increase the permeability of a pharmaceutical compound or composition across a membrane of a subject. The poly-L-lysine or salt thereof is longer than the poly-L-glutamic acid or poly-L-aspartic acid so that the complex that forms has a charge-neutralised region and a positively-charged region.