Reversibility of structural changes of polypeptides in multilayer nanofilms.
Structural properties of different polypeptide multilayer nanofilms fabricated at neutral pH have been analyzed by UV spectroscopy, circular dichroism spectroscopy (CD), and Fourier-transform infrared spectroscopy (FTIR). The various peptides studied exhibit a strong tendency to adopt a beta sheet conformation in the films. Changes in film structure on dehydration are completely reversed on rewetting. The time scale of reversibility is, however, substantially shorter for the polymer backbone than the side chains, as in protein folding.
Zhang
Ling
L
Artificial Cell Technologies, Inc., 5 Science Park at Yale, Third Floor, New Haven, Connecticut 06511, USA.
Haynie
Donald T
DT
D002942:Circular Dichroism; D006863:Hydrogen-Ion Concentration; D049329:Nanostructures; D010455:Peptides / Q000737:chemistry*; D011487:Protein Conformation; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared
D010455:Peptides