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Introduction to Hemostasis

Introduction to Hemostasis

Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...

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Author Spotlight: Exploring the Potential of Fat-Derived Stromal Vascular Fraction for Wound Healing

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Published on: November 17, 2023

An aligned pattern sponge based on gelatin for rapid hemostasis.

Dayong Cao^1,2,3,4,5, Yimin Chen^1,2,3,4, Yulin Man^1,2,3,4

¹Burn & Wound Repair Department, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian, People's Republic of China.

Biomedical Materials (Bristol, England)

|November 25, 2024

Summary

This summary is machine-generated.

Researchers developed patterned gelatin sponges (P-Gelatin) that accelerate blood clotting. This novel biomaterial structure enhances hemostasis by promoting rapid adsorption of red blood cells and platelets for improved wound healing.

Keywords:

cytocompatibility gelatin sponge hemocompatibility pattern rapid hemostasis

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Last Updated: Jun 6, 2025

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Published on: November 17, 2023

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Engineering a Bilayered Hydrogel to Control ASC Differentiation

Engineering a Bilayered Hydrogel to Control ASC Differentiation

Published on: May 25, 2012

Area of Science:

Biomaterials Science
Regenerative Medicine
Hemostasis Research

Background:

Post-traumatic hemorrhage is a critical concern, driving mortality and morbidity.
Current hemostatic materials often overlook structural impact, focusing instead on nutritional components.
Limited research exists on how material structure influences hemostasis.

Purpose of the Study:

To develop and evaluate cytocompatible and hemocompatible three-dimensional gelatin sponges with a patterned and aligned structure for rapid hemostasis.
To investigate the effect of the patterned structure on blood coagulation and hemostasis.
To highlight the potential of structural design in enhancing hemostatic material efficacy.

Main Methods:

Fabrication of three-dimensional gelatin sponges with patterned and aligned structures (P-Gelatin).
Characterization using light microscopy and scanning electron microscopy (SEM).
Assessment of cytocompatibility (MTT assay) and hemocompatibility (hemolysis experiment).
Evaluation of *in vivo* blood coagulation and hemostasis performance.

Main Results:

P-Gelatin sponges demonstrated aligned surface and internal structures.
P-Gelatin exhibited excellent cytocompatibility and hemocompatibility.
P-Gelatin sponges showed significantly faster adsorption of red blood cells and platelets compared to non-patterned counterparts.
*In vivo* studies confirmed enhanced blood coagulation and hemostasis.

Conclusions:

Patterned gelatin sponges (P-Gelatin) offer a safe and effective approach for rapid hemostasis.
The aligned structural design is key to enhancing the adsorption of blood components and accelerating clotting.
This study introduces a novel concept where material structure significantly improves hemostatic efficacy, relevant for tissue engineering applications.