Drug self-delivery systems (DSDSs), in which active drugs exhibit nanoscale characteristic to realize intracellular delivery by themselves without the help of nanocarriers, have been rapidly developed to address these issues.
The general concept of using supramolecular hydrogel of bioactive small molecules as a "self-delivery" system, thus, provides a novel approach to therapeutics and an attractive and validated alternative to the traditional drug delivery system.
It also introduces an overview of mathematical models that could be used to engineer self-emulsifying delivery systems.
While the field of self-emulsifying delivery systems has seen rapid progress in pharmaceutical and food applications, future developments require a multidisciplinary approach to take full advantage of the technology.
In our previous research, an amphiphilic GEM derivative, cyclic phosphoryl N-dodecanoyl gemcitabine (CPDG) was prepared based on the techniques of HepDirect prodrug and self-assembled drug delivery systems (SADDS), which self-assembled into the stable nanoassemblies in water.
Recently, much attention has been focused on lipid-based formulations including self-emulsifying or self-microemulsifying drug delivery systems (SEDDS and SMEDDDS) [ 9, 14] and nanoemulsion [ 15, 16] to greatly improve the oral bioavailability of CoQ10.
Fig. 2 Chart of turbidity results of candesartan cilexetil liquid self –nanoemulsifying drug delivery systems Fig. 3 Photographic picture of turbidity study results of candesartan cilexetil liquid self nanoemulsifying drug delivery systems.
Thus, the study confirmed 'Self microemuslification drug delivery systems' as a possible alternative to conventional oral formulations of modafinil to improve its oral bioavailability.
Out of these four systems, Type-II formulations are named as self-emulsifying drug delivery systems (SEDDS, coarse emulsions) and Type-III formulations are named as self-microemulsifying drug delivery systems (SMEDDS, microemulsions) due to their ability to form instantaneous emulsions with minimal energy input.
Parastrongyloides trichosuri, an intestinal rhabdiasoid nematode parasite specific to possums, is being evaluated as a self-disseminating delivery system for engineered fertility control vaccines.
Fully dilutable microemulsions (μEs), used to design self-microemulsifying delivery system (SMEDS), are formulated as concentrate solutions containing oil and surfactants, without water.
