Term: Hydrogel Coating

Category: Coatings

Definition: Hydrogels are a network made of hydrophilic polymers that can absorb large amounts of water compared to their own mass. Hydrogel coatings are a wet, soft layer on surfaces, similar to human tissue. These hydrogel layers offer lubrication to the medical device surfaces. This will reduce the friction between the insertion devices and the tissues without causing any irritation. Hydrogel coatings also protect the surface from dust and protein adhesion, making the device safer to use and easier to clean.

Example Uses:

• Catheters, guidewires, and tools for surgeries
• Contact lenses and eye devices
• Scaffolds for growing tissues
• Bandages and materials for healing
• Systems for delivering medicine and devices placed inside the body

Related Content and Resources: 

What Is Hydrogel, And How Is It Used?

Hydrogels in Biomedical Field: Uses and Benefits

Hydromer® Medical Device Coatings

Hydrophilic Coatings for Medical Devices: Intro, Benefits & Uses