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Structure of the strips. The strip consists of the sample pad with dried gold-labelled mAbs (anti-cefotaxime + anti-CTX-Ms); the nitrocellulose membrane with a Test Line 1 consisting of intact CTX coupled with BSA; a Test Line 2 consisting of mAbs recognizing CTX-Ms; a control line consisting of mAbs recognizing the colloidal gold-labelled mAbs; and the absorption pad which allows the sample to migrate along the strip.
