Abstract-Measuring the Elasticity of Poly-l-Proline Helices with Terahertz Spectroscopy

• 
  

• 
  

• 
  

  
  

• 
  

http://onlinelibrary.wiley.com/doi/10.1002/anie.201603825/abstract

An approach combining terahertz spectroscopy, X-ray diffraction, and solid-state density functional theory was utilized to accurately measure the elasticities of poly-l-proline helices by probing their spring-like vibrational motions. In their communication (DOI:10.1002/anie.201602268), T. M. Korter and co-workers reveal that poly-l-proline is less rigid than commonly expected, and that the all-cis and all-trans helical forms exhibit significantly different Young's moduli.