Figure 6.

Biomedical and industrial applications of PASP-based hydrogels. (A) FITC-Dx release from PASP nanogels as a function of time and DTT concentration (squares: 100 × 10⁻³ M, spheres: 10 × 10⁻³ M, and triangles: 0 × 10⁻³ M DTT). Reproduced from Krisch et al. (2016) with permission from Wiley. (B) Synthesis of the disulfide cross-linked PASP nanogel and its complete disintegration by reducing agent. Reproduced from Park et al. (2017) from Elsevier. (C) The live (green) and dead (red) cells cultured on alginate, alginate/poly(2-hydroxyethyl-co-hydrazidoadipoyl aspartamide) (PHHZA), and alginate/RGD-PHHZA hydrogels after 1 and 3 days (scale bar: 100 μm). Reproduced from Jang and Cha (2018) with permission from American Chemical Society. (D) The schematic illustration of cell encapsulation by bilayer PSI/PCL tubes. Reproduced from Zakharchenko et al. (2011) with permission from American Chemical Society. (E) Color change and (F) absorption spectra of PASP in different Cu²⁺ ions solution. Reproduced from Zhang et al. (2015) from with permission Elsevier.