Alginate enriched with phytic acid for hydrogels preparation

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Tissue Engineering

Background:

• Alginate hydrogels are versatile biomaterials with potential in cell and tissue regeneration.
• Their structural similarity to the extracellular matrix enhances their biocompatibility and performance.
• Developing novel crosslinking strategies is crucial for tuning hydrogel properties.

Purpose of the Study:

• To prepare and characterize superabsorbent, high-porosity alginate hydrogels using phytic acid as a natural crosslinker.
• To investigate the influence of varying alginate-to-phytic acid ratios on hydrogel properties.
• To evaluate the physico-chemical characteristics of these novel hydrogel systems.

Main Methods:

• Preparation of sodium alginate/phytic acid hydrogels with different composition ratios.
• Characterization using Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD).
• Morphological analysis via scanning electron microscopy (SEM), swelling tests, and thermal analysis (TG/FT-IR/MS).

Main Results:

• Successful preparation of superabsorbent and high-porosity hydrogels.
• Demonstrated differences in physico-chemical properties based on alginate and phytic acid ratios.
• FT-IR, SEM, XRD, swelling, and thermal analyses confirmed the hydrogel structure and tunable characteristics.

Conclusions:

• Phytic acid is an effective natural crosslinker for sodium alginate hydrogels.
• The composition ratio significantly influences the hydrogels' tunable properties and versatility.
• These alginate/phytic acid hydrogels show promise for various bio-applications, particularly in tissue regeneration.