Laser Probes of Conformational Isomerization in Flexible Molecules and Complexes

2006 ◽  
Vol 110 (12) ◽  
pp. 4133-4150 ◽  
Author(s):  
Timothy S. Zwier
Keyword(s):  
Conformational Isomerization ◽  
Flexible Molecules ◽  
Laser Probes

Cryogenic atomic force microscopy

1991 ◽  
Vol 49 ◽  
pp. 54-55
Author(s):  
K. A. Fisher ◽  
M. G. L. Gustafsson ◽  
M. B. Shattuck ◽  
J. Clarke
Keyword(s):  
Room Temperature ◽  
Rapid Freezing ◽  
Cryogenic Temperatures ◽  
Soft Or ◽  
Electrically Conductive ◽  
Force Microscopy ◽  
Flexible Molecules ◽  
Advantages And Disadvantages ◽  
Atomic Force ◽  
Chemical Perturbation

The atomic force microscope (AFM) is capable of imaging electrically conductive and non-conductive surfaces at atomic resolution. When used to image biological samples, however, lateral resolution is often limited to nanometer levels, due primarily to AFM tip/sample interactions. Several approaches to immobilize and stabilize soft or flexible molecules for AFM have been examined, notably, tethering coating, and freezing. Although each approach has its advantages and disadvantages, rapid freezing techniques have the special advantage of avoiding chemical perturbation, and minimizing physical disruption of the sample. Scanning with an AFM at cryogenic temperatures has the potential to image frozen biomolecules at high resolution. We have constructed a force microscope capable of operating immersed in liquid n-pentane and have tested its performance at room temperature with carbon and metal-coated samples, and at 143° K with uncoated ferritin and purple membrane (PM).

New basis set for the prediction of the specific rotation in flexible biological molecules

RSC Advances ◽  
2016 ◽  
Vol 6 (24) ◽  
pp. 19897-19902 ◽  
Author(s):  
Angelika Baranowska-Łączkowska ◽  
Krzysztof Z. Łączkowski ◽  
Christian Henriksen ◽  
Berta Fernández ◽  
Marta Kozak ◽  
...  
Keyword(s):  
Specific Rotation ◽  
Biological Molecules ◽  
Basis Set ◽  
Flexible Molecules ◽  
Novel Method

A novel method based on increasingly accurate calculations is used to obtain the main conformers of a set of nine flexible molecules. Their specific rotation is evaluated using the recently developed ORP basis set.

Laser probes LC phase changes

Displays ◽  
1982 ◽  
Vol 3 (4) ◽  
pp. 234
Author(s):  
F.C. Saunders ◽  
M.G. Clark
Keyword(s):  
Phase Changes ◽  
Laser Probes

scholarly journals Development and validation of an improved algorithm for overlaying flexible molecules

2012 ◽  
Vol 26 (4) ◽  
pp. 451-472 ◽  
Author(s):  
Robin Taylor ◽  
Jason C. Cole ◽  
David A. Cosgrove ◽  
Eleanor J. Gardiner ◽  
Valerie J. Gillet ◽  
...  
Keyword(s):  
Flexible Molecules ◽  
Development And Validation ◽  
Improved Algorithm

scholarly journals Conformational Isomerization of Formic Acid by Vibrational Excitation at Energies below the Torsional Barrier

2003 ◽  
Vol 125 (14) ◽  
pp. 4058-4059 ◽  
Author(s):  
Mika Pettersson ◽  
Ermelinda M. S. Maçôas ◽  
Leonid Khriachtchev ◽  
Rui Fausto ◽  
Markku Räsänen
Keyword(s):  
Formic Acid ◽  
Vibrational Excitation ◽  
Conformational Isomerization ◽  
Torsional Barrier

Internal dynamics of flexible molecules: Cyclohexane

1990 ◽  
Vol 121 (5) ◽  
pp. 339-349 ◽  
Author(s):  
Anton Beyer ◽  
Peter Schuster
Keyword(s):  
Internal Dynamics ◽  
Flexible Molecules
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