Fibrinogen provides the material that becomes a fibrin network, while thrombin drives the final stage of coagulation that produces this structure. Calcium may also be present in the formulation. Once generated at the application site, the network polymerizes and stabilizes, allowing the adhesive to support sealing and hemostasis during tissue repair.
Polymerization converts the newly generated fibrin components into a stabilized network at the treated site. This local structural change helps the adhesive remain where it was applied rather than functioning only as a liquid mixture. The resulting network supports wound sealing, bleeding control, and tissue approximation during medical procedures.
Fibrin glue provides biological reinforcement in addition to, or instead of relying solely on, mechanical closure. Its fibrin network can seal wound surfaces and support hemostasis while it gradually biodegrades. This gives clinicians a tissue-compatible option for reinforcing sutures or joining surfaces when mechanical methods alone may not provide the desired support.
The fibrinogen and thrombin components are brought together at the intended tissue site, often with calcium included in the formulation. Their interaction reproduces the final coagulation stage, generating a fibrin network that polymerizes and stabilizes. Clinicians can then use the localized adhesive effect to seal tissue, reinforce closure, or help control bleeding.
Reported applications span cardiovascular, gastrointestinal, ophthalmic, and reconstructive procedures. In these settings, surgeons may use the adhesive to control bleeding, reinforce sutures, or close tissue surfaces. Its role therefore extends across procedures with different anatomical goals, while the shared objective is localized tissue sealing or support during repair.
Because fibrin glue forms a biodegradable matrix at the application site, it can serve as a platform for localized drug delivery and regenerative medicine research. Plasma-derived or recombinant components provide formulation options for this work. These properties allow investigators to study ways of placing therapeutic materials or supporting tissue-focused interventions near a targeted site.