IDIOM HELP NEEDED URGENTLY : 'Researched on'

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which one is correct and sounds better?
to me, both sound correct.

I researched on the domain and the possible implications that any IT implementation would have.

I researched about the domain and the possible implications that any IT implementation would have.

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by magnus opus » Wed Oct 13, 2010 12:48 am
reasearch on is correct.

the scientists are crrently researching on Dolohin echolocation.

But the predicate of both the sentences is incorrect.

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by Pdgmat2010 » Wed Oct 13, 2010 12:55 am
thanks.
Could you tell me why you think the predicate of the sentence is wrong