Abstract: This invention describes ways of obtaining nano-particulated adjuvants formed by different synthetic variants of GM3 ganglioside. Depending on the fine structure of the fatty acid in the ceramide of the synthetic GM3, said adjuvants are able to stimulate specifically and in a specialized way the humoral or cellular immune response against accompanying antigens. Particularly, this invention provides immunogenic vaccine compositions that comprise peptides, polypeptides or proteins and the aforementioned nanoparticles, which are formed through the dispersion of hydrophobic proteins of the outer membrane complex (OMC) of Neisseria meningitidis in solutions containing fully synthetic variants of the GM3 ganglioside.

Abstract: A room-service table handle has a handle rod extendable rearwardly and upwardly intermediate a handle base (2) that is attached to an end of a wheeled room-service table (1) and a handlebar (3) that is fixable selectively for grasping by a user in a desirably upright body position. The room-service table is maneuverable at the handlebar with Class I Leverage being applied on back wheels (29) and Class II Leverage being applied on front wheels (28) while steering it in accordance with wheeling structure and while pushing or pulling selectively for intended room-service moving and positioning. The handle rod can be adjustable upwardly, downwardly and laterally from the room-service table.