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University of Technology and Life Sciences, Bydgoszcz, Poland
Adam Gadomski
http://www.man.bydgoszcz.pl/~agad/; http://imif.utp.edu.pl/zmpf/
(a) Institute of Mathematics & Physics, Department of Modeling of Physicochemical Processes at University of Technology and Life
Sciences (UT&LS), Bydgoszcz, Poland
Lecture presented at Jülich FZ on 12th January 2010
Model Soft-Matter Properties as Seen in Terms of Aggregating Arrangements Prevailing at
(Sub)mesoscale
Motivation of the Talk:
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010
The term 'soft matter' refers roughly to materials that respond
readily even to modest stimuli. This responsiveness motivates at
present a wide range of technologies, cf. Nature
Materials 3, 139–140 (1st March 2004) doi:10.1038/nmat1083
.www.rsc.org/ej/DT/2000/b003331f
Objective:JÜLICH 2010
To remind that soft-matter aggregations in their (model amphiphilic, such as Langmuir-Blodgett, etc.) forms cause system’s inhomogeneization that may be assisted by either (i) internal- or (ii) external-friction conditions encountered/applied, or both, (i)-(ii), sometimes ...
University of Technology and Life Sciences, Bydgoszcz, Poland
Healthy AC matrix (courtesy of A. Oloyede) Degenerated AC matrix (courtesy of A. Oloyede)
Object of Interest:JÜLICH 2010
Soft matter forms a multitude of mesoscopic structures using its wealth of freedom degrees. By applying external fields such as normal or shear loads, electric fields, or guests’ inclusions,and the likes, the mesostructures show up structural transitions, which brings an appreciable change of the physical properties.
www.touchbriefings.com
University of Technology and Life Sciences, Bydgoszcz, Poland
Healthy AC matrix (A. Oloyede)
Degenerated AC matrix (A. Oloyede)
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010Organic thin films may appear just on your way – ®A.G., Europhysics News, vol. 35/1, 20-22 (2004)
Oil spots on ground water surface - quite a common behavior
... as was the case of J. Czochralski in 1930-s, a truly macroscopic example known to everyone
A short break on Czochralski, a famous crystal grower (CZ method, adopted then by modern silicon high technology):
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010Disparate morphologies found in Langmuir-Blodgett thin films, a survey of examples:
http://cit.iccas.ac.cn/member/liumh_e.htm
http://www.veeco.co.jp
http://cit.iccas.ac.cn/introduction.htmhttp://www.cbmn.u-bordeaux.fr/index.php?idrsrch=7
http://tainano.com
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010Langmuir-Blodgett thin films, a brief explanation of the method:
See, E. Pechkova, C. Nicolini, J. Crystal Growth 231, 599 (2001), and refs. therein.
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010Langmuir-Blodgett thin films, their virtual usefulness to protein crystal growth:
E. Pechkova, C. Nicolini, J. Crystal Growth 231, 599 (2001) E. Pechkova et al., Acta Cryst. D61, 809-812 (2005))
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010Langmuir-Blodgett thin films, their influence on crystal growth rate (based on cubic units):
E. Pechkova, C. Nicolini, J. Crystal Growth 231, 599 (2001); ® J. Siodmiak et al., Int. J. Modern Phys. C 17/9 1359-1366 (2006)
Cubic unit
Hydrophilic amino acid Hydrophobic amino acid
3D 2D
TYP A
TYPE A TYPE B TYPE C TYPE D TYPE A90 o 90 o 90o 90 o
Basic Protein Unit of the Sub-Mesoscopic & Coarse-Grained Computer Model of Crystal Growth [® Int. J. Modern Phys. C 17/7, 1037-1054 (2006)]
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010
University of Technology and Life Sciences, Bydgoszcz, Poland
JÜLICH 2010Principal Cause for Changes to Detect–the Total Energy
Hydrophobicity
Density
Folding and aggregation effects (based on SARW units)
Temperature
Solvent
Mass
???
(Here, the term ‘environment’ means a simulated large amphiphile (HP) matrix.)