TY - JOUR
T1 - Highly stretched single polymers
T2 - Atomic-force-microscope experiments versus ab-initio theory
AU - Hugel, Thorsten
AU - Rief, Matthias
AU - Seitz, Markus
AU - Gaub, Hermann E.
AU - Netz, Roland R.
PY - 2005/2/4
Y1 - 2005/2/4
N2 - Experimental single-molecule stretching curves for three backbone architectures (single-stranded DNA, various types of peptides, polyvinylamine) are quantitatively compared with corresponding quantum-chemical (zero-temperature) ab-initio calculations in the high-force range of up to two nano-newtons. For high forces, quantitative agreement is obtained with the contour length of the polymers as the only fitting parameter. For smaller forces, the effects of chain fluctuations are accounted for by using recent theoretical results for the stretching response of a freely-rotating-chain model.
AB - Experimental single-molecule stretching curves for three backbone architectures (single-stranded DNA, various types of peptides, polyvinylamine) are quantitatively compared with corresponding quantum-chemical (zero-temperature) ab-initio calculations in the high-force range of up to two nano-newtons. For high forces, quantitative agreement is obtained with the contour length of the polymers as the only fitting parameter. For smaller forces, the effects of chain fluctuations are accounted for by using recent theoretical results for the stretching response of a freely-rotating-chain model.
UR - http://www.scopus.com/inward/record.url?scp=18044390503&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.94.048301
DO - 10.1103/PhysRevLett.94.048301
M3 - Article
C2 - 15783606
AN - SCOPUS:18044390503
SN - 0031-9007
VL - 94
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
M1 - 048301
ER -