Wound | EPFL Graph Search

A wound is a rapid onset of injury that involves lacerated or punctured skin (an open wound), or a contusion (a closed wound) from blunt force trauma or compression. In pathology, a wound is an acute injury that damages the epidermis of the skin. To heal a wound, the body undertakes a series of actions collectively known as the wound healing process. According to the level of contamination, a wound can be classified as: Clean wound – made under sterile conditions where there are no organisms present, and the skin is likely to heal without complications. Contaminated wound – usually resulting from accidental injury; there are pathogenic organisms and foreign bodies in the wound. Infected wound – the wound has pathogenic organisms present and multiplying, exhibiting clinical signs of infection (yellow appearance, soreness, redness, oozing pus). Colonized wound – a chronic situation, containing pathogenic organisms, difficult to heal (e.g. bedsore). Open wounds can be classified according to the object that caused the wound: Incisions or incised wounds – caused by a clean, sharp-edged object such as a knife, razor, or glass splinter. – irregular tear-like wounds caused by some blunt trauma. Lacerations and incisions may appear linear (regular) or stellate (irregular). The term laceration is commonly misused in reference to incisions. Abrasions (grazes) – superficial wounds in which the topmost layer of the skin (the epidermis) is scraped off. Abrasions are often caused by a sliding fall onto a rough surface such as asphalt, tree bark or concrete. Avulsions – injuries in which a body structure is forcibly detached from its normal point of insertion; a type of amputation where the extremity is pulled off rather than cut off. When used in reference to skin avulsions, the term 'degloving' is also sometimes used as a synonym. Puncture wounds – caused by an object puncturing the skin, such as a splinter, nail or needle. Penetration wounds – caused by an object such as a knife entering and coming out from the skin.

First Advanced Bilayer Scaffolds for Tailored Skin Tissue Engineering Produced via Electrospinning and Melt Electrowriting

Biranche Tandon, Nicolas Tissot

In vitro skin models are validated methods for screening cosmetics and pharmaceuticals, but still have limitations. The bilayer poly(epsilon-caprolactone) scaffold/membrane model described here overcomes some of these deficits by integrating a solution ele ...

Weinheim2024

Enhancing Robustness of Adhesive Hydrogels through PEG-NHS Incorporation

Dominique Pioletti, Theofanis Stampoultzis, Yanheng Guo, Ece Uslu, François Gorostidi, Vijay Kumar Rana

Tissue wounds are a significant challenge for the healthcare system, affecting millions globally. Current methods like suturing and stapling have limitations as they inadequately cover the wound, fail to prevent fluid leakage, and increase the risk of infe ...

Washington2023