Physically crosslinked hydrogels can be prepared by different methods depending on the nature of the crosslink involved. Polyvinyl alcohol hydrogels are usually produced by the freeze-thaw technique.

In the present review, we focused on the fundamental concepts of hydrogels—classification, the polymers involved, synthesis methods, types of hydrogels, properties, and applications of the hydrogel.

Sep 8, 2025 · What are hydrogels? Hydrogels are materials that can absorb and hold large amounts of water. They are made up of hydrophilic functional groups that attach to polymers and are cross …

Aug 22, 2025 · Hydrogels are three-dimensional networks composed of polymer chains. They absorb and hold substantial amounts of water or other biological fluids without dissolving. This water-holding …

Discover the science behind hydrogels, their unique properties, and their ubiquitous role in everyday products and advanced technologies.

Nov 1, 2023 · Hydrogels are hydrophilic, three-dimensional and cross-linked polymeric networks capable of imbibing water or biological fluids approximately 10–20 times of their initial weight (Ahmed, 2015).

Jan 5, 2022 · Hydrogels are three-dimensional networks of hydrophilic polymers that absorb and retain large amounts of water while maintaining their structure. Their stability comes from chemical or …

May 22, 2023 · Hydrogels are three-dimensional (3D) structured networks of crosslinked hydrophilic polymer matrices capable of holding a large amount of water (> 10%by definition) and displaying …

(Nanowerk Spotlight) Hydrogels are fascinating natural or synthetic polymer materials that exhibit very versatile chemistries and physical or biological properties.

May 7, 2024 · Hydrogels are crosslinked polymer networks swollen with water. Owing to their soft and water-containing nature, hydrogels are promising materials for applications in many fields, such as...