The Effect of pH on the Viscoelastic Response of Alginate-Montmorillonite Nanocomposite Hydrogels.

ABSTRACT: Ionically cross-linked alginate hydrogels are used in a wide range of applications, such as drug delivery, tissue engineering, and food packaging. A shortcoming of these gels is that they lose their strength and degrade at low pH values. To develop gels able to preserve their integrity in a wide range of pH values, Ca-alginate-montmorillonite nanocomposite gels are prepared, and their chemical structure, morphology, and mechanical response are analyzed. As the uniformity of nanocomposite gels is strongly affected by concentrations of MMT and CaCl_2, it is revealed that homogeneous gels can be prepared with 4 wt.% MMT and 0.5 M CaCl₂ at the highest. The viscoelastic behavior of nanocomposite gels in aqueous solutions with pH = 7 and pH = 2 is investigated by means of sm

SUBMITTER: Malektaj H 

PROVIDER: S-EPMC10780325 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature