I know this is not a "Correct Use of English Forum" but I'm afraid that people from outside the field won't be able to properly answer my question.
Would it be correct to say "screening for a long peptide capable of killing Gram-positive bacteria"? Or you just have to turn the word "screening" into a noun like: "preparing a screening for a long peptide capable of killing Gram-positive bacteria"?
The last one doesn't seem right to me at all, but I'm not sure since I'm not a native speaker :(
Thank you for your time!