THE ELECTRICAL CHARGE OF TOXIN AND ANTITOXIN

Area of Science:

• Immunology
• Biochemistry
• Physical Chemistry

Background:

• Diphtheria and tetanus are serious infectious diseases caused by potent exotoxins.
• Understanding the physicochemical properties of toxins and antitoxins is crucial for developing effective treatments and vaccines.
• The interaction between toxins and antitoxins has been a subject of scientific inquiry for decades.

Purpose of the Study:

• To determine the electrical charge of diphtheria and tetanus toxins and their corresponding antitoxins.
• To investigate the influence of solvent reaction on the charge characteristics of these substances.
• To elucidate the nature of the interaction between toxins and antitoxins.

Main Methods:

• Electrophoresis was employed to assess the movement of toxins and antitoxins in an electric field.
• The effect of varying solvent pH on the charge was examined.
• The interaction was analyzed to differentiate between chemical reaction and adsorption.

Main Results:

• Both diphtheria toxin and tetanus antitoxin exhibit electro-positive properties, migrating towards the cathode.
• The observed charge remains consistent regardless of changes in the solvent's reaction (pH).
• Evidence suggests that toxin-antitoxin combination is best described as the adsorption of one colloid by another.

Conclusions:

• Diphtheria and tetanus toxins and antitoxins are fundamentally electro-positive colloids.
• The binding mechanism between toxin and antitoxin appears to be adsorption, not a typical chemical reaction.
• These findings have implications for understanding immune complex formation and purification techniques.