FTIR spectra of solid poly-l-lysine in the stretching NH mode range.

@article{Rozenberg2007FTIRSO,
  title={FTIR spectra of solid poly-l-lysine in the stretching NH mode range.},
  author={Mark Rozenberg and G. Shoham},
  journal={Biophysical chemistry},
  year={2007},
  volume={125 1},
  pages={166-71}
}
Three bands at 3270 cm(-1), 3200 cm(-1) and 3030 cm(-1) are found in the IR stretching proton (nu(1)) mode spectral range in spectra of solid poly-l-lysine (PLL). Strong quantitative changes of these bands are observed in samples dried from water solutions with different pH. The narrow band at 3270 cm(-1), which is strong in the spectrum of PLL precipitated from pH=12 alkaline medium, is assigned to the nu(1) peptide proton mode of NH-CO (amide A) of the beta-sheet structure type. The band at… CONTINUE READING
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