Related Experiment Video
Updated: Feb 14, 2026
06:45
Development of a Benchtop Model for Evaluating the Compatibility of Wound Dressing Materials with Negative Pressure Wound Therapy Systems
Published on: May 2, 2025
897
Asymmetrically Wetted Trilayer-Structured Wound Dressing with Unidirectional Moisture Transport and Hemostatic
Bo Wang1, Xinbo Ding1, Rui Huang1
1College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, China.
ACS Applied Bio Materials
|February 13, 2026
Summary
A novel self-pumping Janus hemostatic dressing (Janus@BG5) utilizes a trilayered fibrous matrix for unidirectional moisture transport. This advanced wound dressing effectively manages exudates, inhibits bacterial colonization, and promotes hemostasis with no observed cytotoxicity.
Area of Science:
- Biomaterials Science
- Wound Healing
- Nanotechnology
Background:
- Conventional wound dressings have limitations in exudate management due to poor draining capabilities.
- Effective wound dressings require hemostatic properties, exudate absorption, and protection against infection and inflammation.
Purpose of the Study:
- To develop a self-pumping Janus hemostatic dressing with unidirectional moisture transport for improved wound management.
- To evaluate the hemostatic, antibacterial, and cytotoxic properties of the novel dressing.
Main Methods:
- Fabrication of an electrospun trilayered fibrous matrix incorporating polylactic acid (PLA), silk fibroin (SF), and cerium-doped bioactive glass (Ce-BG@PDE) nanoparticles.
- Characterization of the Janus@BG5 dressing's porosity, tensile strength, and unidirectional moisture transport.
- Assessment of antibacterial activity against Escherichia coli and Staphylococcus aureus, hemostatic performance (blood absorption, clotting index, coagulation time), and in vitro cytotoxicity using human umbilical vein endothelial cells (HUVECs).
Main Results:
- The Janus@BG5 dressing exhibited 88.0% porosity and 3.4 MPa tensile strength, demonstrating unidirectional moisture transport.
- Significant inhibition of Escherichia coli (82.9 ± 2.7%) and Staphylococcus aureus (90.5 ± 0.7%) colonization was observed.
- The dressing showed a high blood absorption rate (643.0%), a clotting index of 25.8%, and a coagulation time of 237.0 ± 10.5 s, with no cytotoxicity to HUVECs.
Conclusions:
- The developed trilayered Janus nanofibrous membrane (Janus@BG5) effectively manages exudates and provides hemostatic and antibacterial functions.
- The dressing's unique unidirectional moisture transport and biocompatibility suggest its potential for advanced wound dressing applications.
Related Concept Videos
01:56Structural Protein Function
30.1K
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
30.1K
01:56Structural Protein Function
3.3K
3.3K
01:58Fruit Development, Structure, and Function
25.4K
Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
25.4K
01:29Structure and Function of Erythrocytes
6.2K
There are between 4.2 and 6 million erythrocytes, also known as red blood cells, in every microliter of blood. These cells are small, flattened biconcave discs with centers that are depressed.
The erythrocyte plasma membrane is associated with proteins such as spectrin, which forms a flexible cytoplasmic meshwork. This meshwork allows erythrocytes to twist, turn, become cup-shaped, and regain their biconcave shape as they pass through narrow capillaries. Additionally, erythrocytes can form...
The erythrocyte plasma membrane is associated with proteins such as spectrin, which forms a flexible cytoplasmic meshwork. This meshwork allows erythrocytes to twist, turn, become cup-shaped, and regain their biconcave shape as they pass through narrow capillaries. Additionally, erythrocytes can form...
6.2K
01:18Structure and Function of Platelets
3.8K
The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
3.8K
01:21Structure and Function of Leukocytes
4.5K
An adult in good health typically has between 4,500 and 11,000 leukocytes, or white blood cells, per microliter of blood, which constitutes about 1% of the total blood volume. Unlike red blood cells, white blood cells contain a nucleus and other cellular organelles but do not have hemoglobin. Most white blood cells reside in connective tissues, particularly in lymphatic organs such as the lymph nodes, with only a small fraction present in circulating blood.
White blood cells protect the body...
White blood cells protect the body...
4.5K