Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
Chem Commun (Camb). 2013 Feb 14;49(13):1306-8. doi: 10.1039/c2cc38627e. Epub 2013 Jan 10.
The melting temperature of duplex DNA is much higher in polyanions than in non-ionic polymers with similar ionic strength, suggesting an additional electrostatic contribution on top of the excluded volume effect.
双链 DNA 的融解温度在多阴离子中的比在具有相似离子强度的非离子聚合物中高得多,这表明除了排除体积效应之外还有额外的静电贡献。