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Formation of the Platelet Plug

Formation of the Platelet Plug

The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...

Clot Retraction and Fibrinolysis

Clot Retraction and Fibrinolysis

After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.

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Related Experiment Video

Updated: May 8, 2026

A Chitosan Based, Laser Activated Thin Film Surgical Adhesive, 'SurgiLux': Preparation and Demonstration

A Chitosan Based, Laser Activated Thin Film Surgical Adhesive, 'SurgiLux': Preparation and Demonstration

Published on: October 23, 2012

Polydimethylsiloxane Janus Adhesive Patch Constructed Based on Gradient Cross-Linking for Liver Injury Treatment.

Yixi Zhang¹, Heng An², Peng Liang³

¹Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, P. R. China.

Advanced Healthcare Materials

|March 7, 2026

Summary

A novel Janus adhesive patch offers suture-free liver injury repair. This innovative patch adheres effectively to damaged liver tissue, promoting healing and showing promise for clinical applications.

Keywords:

adhesion materials gradient crosslinking janus adhesion liver repair

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Published on: November 11, 2022

Area of Science:

Biomaterials science
Surgical innovation
Regenerative medicine

Background:

Liver injuries from trauma or surgery pose significant challenges to healing.
Current standard of care, hand-sewn sutures, presents numerous difficulties for effective liver repair.

Purpose of the Study:

To develop and evaluate a novel Janus adhesive patch for suture-free liver injury repair.
To assess the patch's efficacy, mechanical properties, and safety compared to existing methods.

Main Methods:

A Janus adhesive patch was created using a one-step gradient cross-linking method.
The patch's performance was evaluated in a mouse liver injury model, comparing it to sutures and a commercial tissue adhesive (FuAiLe).
Efficacy was assessed via blood tests and histological analysis.

Main Results:

The Janus patch demonstrated effective, rapid, and robust suture-free repair of liver injuries.
The patch exhibited strong adhesion to injured sites while remaining non-adhesive to healthy tissue.
Histological analysis and blood tests confirmed the patch's efficacy and safety.

Conclusions:

The developed Janus adhesive patch is a promising alternative for treating liver injuries.
This innovative patch has potential for clinical applications in liver repair and other organ surgeries.