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In physical chemistry and engineering, passivation is coating a material so that it becomes "passive", that is, less readily affected or corroded by the environment. . Passivation involves creation of an outer layer of shield material that is applied as a microcoating, created by chemical reaction with the base material, or allowed to build by spontaneous oxidation
After dermatologic surgery, the presence of suture materials at the wound site can cause redness and swelling, yet these suture reactions may not necessarily indicate allergy or infection. Other common complications include hypertrophic or keloid scars, bruises, suture marks, and skin color changes, which may be temporary or permanent.
Removing certain elements from the surface of materials is another form of passivation. In nitinol, the removal of Ni is important, because Ni is toxic if leached into the body. [2] Stainless steel is commonly passivated by the removal of iron from the surface through the use of acids and heat. Nitric acid is commonly used as a mild oxidant to ...
Microdermabrasion is a light cosmetic procedure that uses a mechanical medium for exfoliation to remove the outermost layer of dead skin cells from the epidermis.Most commonly, microdermabrasion uses two parts: an exfoliating material such as crystals or diamond flakes, and a machine-based suction to gently lift up the skin during exfoliation.
Skin grafting often takes place after serious injuries when some of the body's skin is damaged. Surgical removal (excision or debridement ) of the damaged skin is followed by skin grafting. The grafting serves two purposes: reducing the course of treatment needed (and time in the hospital), and improving the function and appearance of the area ...
Cosmetic injectables are on the rise and with them, telltale side effects like swelling, redness, and bruising. But the right post-injection skincare can help.
Ablation (Latin: ablatio – removal) is the removal or destruction of something from an object by vaporization, chipping, erosive processes, or by other means. Examples of ablative materials are described below, including spacecraft material for ascent and atmospheric reentry , ice and snow in glaciology , biological tissues in medicine and ...
A surgical incision is a cut made through the skin and soft tissue to facilitate an operation or procedure.Often, multiple incisions are possible for an operation. In general, a surgical incision is made as small and unobtrusive as possible to facilitate safe and timely operating conditions and recovery.