PHYSICAL AND CHEMICAL PROPERTIES OF A FLANNEL CELLULOSE-BASED WOUND DRESSING SORBENT
Abstract and keywords
Abstract:
The prospects of using flax cellulose (Celoform-neo) as a wound dressing compared to cotton cellulose (Celoform) are due not only to its high sorption properties, but also to its antiseptic composition, the presence of smooth fibers, the effect of cryo-effect and the increase in strength characteristics when the wound is wet. Sedimentation analysis showed that flax particles are significantly longer retained in the volume of liquid, which indicates their higher dispersion and developed specific surface area compared to cotton Celoform. The integral distribution curves confirm that, unlike its cotton counterpart, the linen sorbent has a well-developed fine-grained fraction with a particle radius of less than 10 μm and a 50% lower median particle radius, which results in a higher total active surface area of linen, providing it with superior ability to absorb and retain wound exudate. This fact is confirmed by the granulometric composition data, which show that the average particle radius for the flax substrate was Ravg = 46 μm, while for the cotton sorbent, it was Ravg = 70 μm. The dispersion analysis using dynamic light scattering revealed the presence of nano-sized fractions in both sorbents (Celoform and Celoform-neo). However, the flax-based sorbent exhibited a multimodal distribution, which may indicate a higher adsorption capacity. Using electron paramagnetic resonance, it was found that a greater number of free radicals are produced during the processing of plant raw materials into a linen sorbent, which confirms the possibility of suppressing the growth of microorganisms through free radical oxidation.

Keywords:
FLAX CELLULOSE, COTTON CELLULOSE, SORBENT, SORPTION-APPLICATION THERAPY
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