Crossword Genius

In Cologne, Anthony wrote about manipulation on a molecular scale (14)

Ross

I believe the answer is:

nanotechnology

I'm a little stuck... Click here to teach me more about this clue!

'manipulation on a molecular scale' is the definition.
The definition suggests a singular noun which matches the answer.

'in cologne anthony wrote' is the wordplay.
'cologne anthony' can be anagrammed to 'NANOTECHNOLOGY'.
Though, I'm unsure how this is indicated.

'about' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
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