Real-Time Tracking of In Situ-Forming Alginate Hydrogel by Contrast-Enhanced Computed Tomography.

Hydrogel-based biomaterials have gained broad acceptance for tissue engineering and drug delivery applications. As their function generally depends on their localization, identifying the hydrogel position in the body is relevant and will alert physicians about potentially dangerous hydrogel migration. Monitoring the localization of hydrogels by imaging is challenging due to their high water content.