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Arrhenius Quote by Karl Landsteiner

“There is no sharp boundary line separating the reactions of the immune bodies from chemical processes between crystalloids, just as in nature there exists every stage between crystalloid and colloid. The nearer the colloid particle approximates to the normal electrolyte, the nearer its compounds…” quote by Karl Landsteiner
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““There is no sharp boundary line separating the reactions of the immune bodies from chemical processes between crystalloids, just as in nature there exists every stage between crystalloid and colloid. The nearer the colloid particle approximates to the normal electrolyte, the nearer its compounds must obviously come to conforming to the law of simple stoichiometric proportions, and the compounds themselves to simple chemical compounds. At this point, it should be recalled that Arrhenius has shown that the quantitative relationship between toxin and antitoxin is very similar to that between acid and base.””

Karl Landsteiner

About This Quote

Source Lecture: Physiology of Immunology, 1920s

The quote draws an analogy between immune reactions and chemical equilibria, suggesting that immune responses follow simple stoichiometric laws similar to acid‑base reactions.

In simple terms: Immune responses act like simple chemical reactions.

Key Takeaway

Consider immune interactions as predictable chemical processes.

Themes

immunology chemistry systems biology

Mood

analytical inquisitive

Type

scientific educational

When to use this quote

  • medical research
  • pharmaceutical development
  • clinical diagnostics
  • educational curricula

Key Concepts

stoichiometry acid‑base equilibrium immune‑chemical analogy

Questions to Reflect On

  • How do modern discoveries of immune complexity challenge this view?
  • Can chemical models fully capture immune dynamics?
A Different Perspective

The analogy may oversimplify complex biological networks.

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