Microcalorimetric studies on the adsorption of DNA by soil colloidal particles.

  title={Microcalorimetric studies on the adsorption of DNA by soil colloidal particles.},
  author={Peng Cai and Qiaoyun Huang and Daihua Jiang and Xingmin Rong and Wei Liang},
  journal={Colloids and surfaces. B, Biointerfaces},
  volume={49 1},
This study applied TAM air isothermal calorimeter to measure the adsorption enthalpies of DNA on eight colloidal fractions from permanent-charge and variable-charge soils. The adsorption of DNA on soil colloids was also examined by equilibrium adsorption analysis. The data evaluated from isotherms fitted by Langmuirean model revealed that the affinity of DNA for variable-charge soil colloids was higher than that for permanent-charge soil colloids. More tightly bound DNA molecules were observed… CONTINUE READING

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