Polysaccharide-based hydrogels as controlled-transport networks: Chemistry-to-performance design rules.

Area of Science:

• Materials Science
• Polymer Chemistry
• Biotechnology

Background:

• Polysaccharide-based hydrogels are vital for regulated mass transport and structural stability.
• Their performance hinges on the translation of functional groups into various junction types.

Purpose of the Study:

• To review polysaccharide hydrogels as transport-regulating networks.
• To establish a framework linking polysaccharide chemistry to hydrogel performance.

Main Methods:

• Examining the chemistry-to-performance relationship in hydrogels.
• Analyzing how substitution chemistry, crosslink type, and network properties influence function.
• Reviewing applications in agriculture, water purification, drug delivery, and wound healing.

Main Results:

• Hydrogel performance is governed by ionic, covalent, dynamic, or hybrid junctions.
• Substitution chemistry, charge density, mesh size, and degradation behavior are key regulators.
• Shared network features can be adapted for distinct outcomes based on boundary conditions.

Conclusions:

• A framework is established for designing application-specific hydrogels.
• Polysaccharide chemistry offers interpretable and controllable performance.
• Understanding network formation and structure-transport relationships is crucial.