PresentatioN role of colloids in mecicine class 10

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1. ROLE OF COLLOIDS IN MEDICINE! BY- SHAAN SHARMA ROLL NUMBER 31 CLASS 9-B

2. INTRODUCTION TO COLLOIDS A C olloid or a colloidal system is a heterogeneous mixture in which one substance is dispersed as very fine particles, having size in the range of 1 to 1000 nm, in a continuous medium of another substance. For example, fog is a colloid in which very small droplets of water are dispersed in air .

3. HETEROGENEOUS NATURE PARTICLE SIZE FILTRATION TYNDALL EFFECT CHARACTERISTICS OF COLLOIDS 5. BROWNIAN MOVEMENT 6. ELECTROPHORESIS 7. COAGULATION

4. USE OF COLLOIDS IN MEDICINES The medicines in colloidal form are easily absorbed by the body tissues and hence are more effective. For example Argyrol , a protected colloidal sol of silver, is used in the treatment of eye diseases. Colloidal antimony Is used in treatment of kala-azar Cod liver oil is an emulsion of cod liver oil in water

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