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Actually, I am unfamiliar to biology, so when I read a thesis, the term "binding capacity" and "binding affinity" are really confusing. Since my major is unrelated to biology, I don't know correct definition. Is there anyone who can explain differences between them clearly? Any references would be helpful, thanks!

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Context would be useful, though there is nothing particularly special about the use of the words in this case. Binding affinity refers to how strongly two things bind (eg a protein-ligand interaction) and binding capacity refers to how much something can bind (eg in reference to a chromatography column).

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  • $\begingroup$ references are really helpful, the key is "how much" and "how strong". right? you resolved my confusion $\endgroup$ – victoria Nov 30 '17 at 12:43
  • $\begingroup$ @victoria Yes, essentially. $\endgroup$ – canadianer Nov 30 '17 at 12:50
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Without any context... is hard to give a detailed answer.

I understand for bindind capacity the ability of a molecule to bind or attach to another molecule. Binding affinity is the strength of the binding interaction between a single molecule and the other one.

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  • $\begingroup$ oh l am sorry, since I am not familar to biology, I thought that the terms are often used in biology, so the only reason for confusing me is lack of my knowledge. So, I didn't add some context, but material I found is just about receptor's binding ability and affinity. $\endgroup$ – victoria Nov 30 '17 at 12:34

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