The Characteristics Of Alginate Medical Dressings (1)

The Characteristics Of Alginate Medical
Dressings (1)
In the last article, we learned about the three major advantages of
alginate as a medical dressing. In addition, alginate medical dressings
also include the following advantages:
(1) The gel is obstructive. Alginate bandage has the characteristics of
gel blocking. Alginate can reduce the spread of wound exudate, and
effectively isolate the invasion of bacteria to prevent wound infection;
(2) High oxygen permeability. After the alginate fiber absorbs moisture,
it forms a hydrophilic gel, and the free water combined with the
hydrophilic group becomes a channel for oxygen transmission. The oxygen
enters the wound tissue from the external environment through the process
of adsorption, diffusion, and desorption;3
(3) Adsorption of metal ions. Since sodium alginate has -COO- and -OH
groups in the aqueous solution, it can form coordination compounds with
polyvalent metal ions.
Therefore, it is sufficient to change the type of metal ions during the
spinning process of preparing seaweed fibers, so that the G structure
chelates polyvalent metal ions can form a stable complex, and the seaweed
fiber has a large amount of metal ions and form a conductive chain to make
a multi-ion electromagnetic shielding fabric;
Metal cations in the fabric made of alginate have health care effects such
as sterilization, deodorization, permanent antibacterial and
antipruritic, no irritation to the skin. It can promote the human
epidermal microcirculation, and also have anti-static, partial X-ray and
Features such as ultraviolet light.