ADVANCES IN COLLOID AND INTERFACE SCIENCE, pp.1-31, 2023 (SCI-Expanded)
Liposomes and polymersomes are
colloidal vesicles that are self-assembled from lipids and amphiphilic
polymers, respectively. Because of their ability to encapsulate both
hydrophilic and hydrophobic therapeutics, they are of great interest in drug
delivery research. Today, the applications of liposomes and polymersomes have
expanded to a wide variety of complex therapeutic molecules, including nucleic
acids, proteins and enzymes. Thanks to their chemical versatility, they can be
tailored to different drug delivery applications to achieve maximum therapeutic
index. This review article evaluates liposomes and polymersomes from a
perspective that takes into account the physical and biological barriers that
reduce the efficiency of the drug delivery process. In this context, the design
approaches of liposomes and polymersomes are discussed with representative
examples in terms of their physicochemical properties (size, shape, charge,
mechanical), targeting strategies (passive and active) and response to
different stimuli (pH, redox, enzyme, temperature, light, magnetic field,
ultrasound). Finally, the challenges limiting the transition from laboratory to
practice, recent clinical developments, and future perspectives are addressed.