Exchangeable Ions Are Responsible for the In Vitro Antibacterial Properties of Natural Clay Mixtures

  title={Exchangeable Ions Are Responsible for the In Vitro Antibacterial Properties of Natural Clay Mixtures},
  author={Caitlin C. Otto and Shelley E. Haydel},
  booktitle={PloS one},
We have identified a natural clay mixture that exhibits in vitro antibacterial activity against a broad spectrum of bacterial pathogens. We collected four samples from the same source and demonstrated through antibacterial susceptibility testing that these clay mixtures have markedly different antibacterial activity against Escherichia coli and methicillin-resistant Staphylococcus aureus (MRSA). Here, we used X-ray diffraction (XRD) and inductively coupled plasma--optical emission spectroscopy… CONTINUE READING
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