Recent development and biomedical applications of self-healing hydrogels

Area of Science:

• Materials Science
• Biomedical Engineering
• Nanotechnology

Background:

• Hydrogels are crucial in biomedical research due to high water content and versatility.
• Self-healing properties, inspired by living organisms, enable materials to repair damage.
• Supramolecular polymeric hydrogels offer self-repair but face limitations in preparation and material selection.

Purpose of the Study:

• To review recent advancements in self-healing hydrogels for therapeutic applications.
• To discuss strategies and mechanisms for creating self-healing hydrogels.
• To highlight the significance of these materials in various biomedical fields.

Main Methods:

• Discussion of various strategies for synthesizing self-healing hydrogels.
• Analysis of different healing mechanisms within these hydrogels.
• Review of recent literature on biologically relevant self-healing hydrogels.

Main Results:

• Self-healing hydrogels exhibit properties similar to human soft tissues.
• Applications include 3D/4D printing, cell/drug delivery, and soft actuators.
• Challenges remain in cost-effective, non-toxic fabrication and property fine-tuning.

Conclusions:

• Self-healing hydrogels hold significant promise for biomedical applications.
• Further development is needed to overcome fabrication and property optimization challenges.
• These materials could enhance the longevity and efficacy of functional biomedical devices.