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Hol, F.J.H. (author), Hubert, A.W.R. (author), Dekker, C. (author), Keymer Vergara, J.E. (author)During antibiotic treatment, antibiotic concentration gradients develop. Little is know regarding the effects of antibiotic gradients on populations of nonresistant bacteria. Using a microfluidic device, we show that high-density motile Escherichia coli populations composed of nonresistant bacteria can, unexpectedly, colonize environments...journal article 2016