structures with a PEG protective shell that is more difficult to achieve for polymers
grafted with oligoethylene glycol segments.
2.1.2 Weak Polyelectrolytes
Without Steric Stabilizer
Polyaspartamide Derivatives
PAsp-DETA (Fig. 5a), a polyaspartamide derivative [134] that is degradable
and thus causes minimal toxicity, shows a higher transfection efficiency in
Fig. 5 (a–f) Weak polycations without steric stabilizer: Polyaspartamide and polyglutamide and
their derivatives
138
A. Bertin