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Hydrogels for pharmaceutical and biomedical applications.
N Kashyap1, N Kumar, M N V Ravi Kumar
1Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research, Punjab, India.
Summary
Hydrogels, versatile polymer networks absorbing water, are crucial for advanced biomedical and pharmaceutical uses. This review details their properties and diverse applications, including drug delivery and tissue engineering.
Area of Science:
- Polymer Science
- Biomaterials Science
- Materials Chemistry
Background:
- Hydrogels are crosslinked hydrophilic polymer networks capable of absorbing significant amounts of water or biological fluids.
- They represent a rapidly advancing class of polymer-based systems with extensive biomedical and pharmaceutical potential.
Purpose of the Study:
- To review the critical parameters influencing hydrogel properties for biomedical applications.
- To highlight the diverse and significant applications of hydrogels in the biomedical field.
- To discuss specialized hydrogel classes, including intelligent and bioadhesive hydrogels.
Main Methods:
- Review of existing literature on hydrogel properties and applications.
- Analysis of factors affecting hydrogel performance, such as surface characteristics, water content, swelling behavior, polymer type, ionic content, and thermodynamics.
- Exploration of specific hydrogel categories like environment-sensitive and bioadhesive hydrogels.
Main Results:
- Hydrogel properties (surface, swelling, composition) critically impact their suitability for biomedical use.
- Intelligent and bioadhesive hydrogels are key materials for modern medical applications.
- Hydrogels demonstrate broad utility in tissue engineering, drug delivery, wound dressings, and immunoisolation.
Conclusions:
- Hydrogels are highly adaptable materials with tunable properties for various biomedical needs.
- Understanding hydrogel parameters is essential for optimizing their performance in medical devices and therapies.
- The review underscores the expanding role of hydrogels across numerous biomedical disciplines.