Question

What is the role of cellophane in dialysis?

Answer 1

Cellophane plays the role of a semi-permeable membrane in dialysis, especially in hemodialysis to remove excess waste materials like creatinine, urea, etc.

Explanation:

Dialysis is an ultra-filtration and purification process;

• done by separation of colloidal particles
• based on unequal and differential diffusion of various molecules in a colloidal solution through semi-permeable membrane like parchment or cellophane.

Cellophane is a transparent membrane regenerated from cellulose.

Advantages of using cellophane in dialysis:

1. Good hydrophilicity
2. Mechanical strength
3. Biodegradable
4. Biocompatible
5. Good gas barrier properties