Membrane systems with carriers

Homopolymer vesicles with a gradient bilayer membrane as drug carriers.

We report an unusual homopolymer vesicle, which has a soft bilayer membrane composed of oligo(ethyleneoxy) side chains (OEs) with a gradually decreased packing density from the centre of the membrane to both margins, exhibiting thermo-responsive zeta potential and dispersibility and showing potential applications for anti-cancer drug delivery.

Intrinsic Information Carriers Intrinsic Information Carriers in Combinatorial Dynamical Systems

Many proteins are composed of structural and chemical features—“sites” for short—defined by definite interaction capabilities, such as non-covalent binding or covalent modification of other proteins. This modularity allows for varying degrees of independence, as the behavior of a site might be controlled by the state of some but not all sites of the ambient protein. Independence quickly generat...

Membrane Systems with Limited Parallelism

Membrane computing is an emerging research field that belongs to the more general area of molecular computing, which deals with computational models inspired from bio-molecular processes. Membrane computing aims at defining models, called membrane systems or P systems, which abstract the functioning and structure of the cell. A membrane system consists of a hierarchical arrangement of membranes...

Energy Carriers and Conversion Systems with Emphasis on Hydrogen

Membrane Systems with External Control

We consider the idea of controlling the evolution of a membrane system. In particular, we investigate a model of membrane systems using promoted rules, where a string of promoters (called the control string) “travels” through the regions, activating the rules of the system. This control string is present in the skin region at the beginning of the computation – one can interpret that it has been...