Chemomechanical Instabilities in Responsive Materials

Front Cover
Pierre Borckmans, Patrick de Kepper, Alexei R. Khokhlov, S. Métens
Springer Science & Business Media, Aug 13, 2009 - Science - 273 pages
The present volume includes most of the material of the invited lectures delivered at the NATO Advanced Study Institute “Morphogenesis through the interplay of nonlinear chemical instabilities and elastic active media” held from 2th to 14th July 2007 at the Institut d’Etudes Scientifiques de Cargèse (http://www.iesc.univ-corse.fr/), in Corsica (France). This traditional place to organize Summer Schools and Workshops in a well equipped secluded location at the border of the Mediterranean sea has, over many years now, earned an increasing deserved reputation. Non-linear dynamics of non equilibrium systems has worked its way into a great number of fields and plays a key role in the understanding of se- organization and emergence phenomena in domains as diverse as chemical reactors, laser physics, fluid dynamics, electronic devices and biological morphogenesis. In the latter case, the viscoelastic properties of tissues are also known to play a key role. The control and formulation of soft responsive or “smart” materials has been a fast growing field of material science, specially in the area of po- mer networks, due to their growing applications in bio-science, chemical sensors, intelligent microfluidic devices, ... . Nature is an important p- vider of active materials whether at the level of tissues or at that of s- cellular structures. As a consequence, the fundamental understanding of the physical mechanisms at play in responsive materials also shines light in the understanding of biological artefacts.
 

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Contents

FROM SUSTAINED OSCILLATIONS TO STATIONARY REACTIONDIFFUSION PATTERNS
1
12 THE KINETIC BASIS
2
13 FROM STEADY STATE BISTABILITY TO SUSTAINED OSCILLATIONS IN OPEN CHEMICAL REACTORS
4
14 THE CASE OF PH DRIVEN OSCILLATORS
8
2 Chemical reactiondiffusion patterns
11
22 OPEN SPATIAL REACTOR DESIGN
13
23 TWO DIMENSIONAL WAVE PATTERNS IN THE BELOUSOVZHABOTINSKY REACTION
16
24 STATIONARY PATTERNS
19
3 Mechanical measurements
122
32 NECKING PHENOMENA
124
4 Individual structure of DNgels by small angle neutron scattering
127
41 STATIC INDIVIDUAL STRUCTURE WITHIN DNGELS
128
42 INDIVIDUAL STRUCTURE UNDER DEFORMATION WITHIN DNGELS
130
5 Biomedical applications
134
52 BIODEGRADATION
135
CHEMOMECHANICAL DYNAMICS OF RESPONSIVE GELS
139

25 TURING PATTERNS IN THE CIMA REACTION FAMILY
23
26 SPATIAL BISTABILITY IN THE CDI REACTION
27
27 A SYSTEMATIC DESIGN METHOD FOR STATIONARY PATTERNS AND ITS APPLICATIONS
30
3 Conclusion
33
MECHANOCHEMICAL INSTABILITIES IN ACTIVE GELS
39
2 Design of selfoscillating gel
41
3 Swellingdeswelling oscillation of the gel with periodic redox changes
42
32 CONTROL OF OSCILLATION PERIOD AND AMPLITUDE
43
33 PERISTALTIC MOTION OF GELS
44
4 Design of biomimetic microactuator using selfoscillating gel
45
42 SELFWALKING GEL
46
5 Selfoscillating polymer chains and gel particles as nanooscillator
47
52 SELFFLOCCULATINGDISPERSING OSCILLATION OF MICROGELS
48
6 Design of nanoactuating systems
51
62 FABRICATION OF MICROGEL BEADS MONOLAYER
52
7 Attempts toward selfoscillation under biological conditions
53
72 SELFOSCILLATION UNDER OXIDANTFREE CONDITIONS
54
FROM OSCILLATIONS TO TURING PATTERNS
57
2 Methodology
60
3 Oscillations
65
4 Bistability
69
5 Spatial bistability
76
51 NUMERICAL RESULTS
79
52 THEORETICAL APPROACH TO SPATIAL BISTABILITY
82
6 Turing patterns
87
7 Conclusion
91
OSCILLATORY DYNAMICS IN CHEMORESPONSIVE GELS
95
12 DYNAMICS CONTROLLED BY A CHEMICAL OSCILLATORY ENVIRONMENT
96
14 DYNAMICAL BEHAVIOR BY COUPLING WITH A NON OSCILLATORY REACTION
97
An experimental example
98
22 OSCILLATORY BEHAVIOR
100
a first theoretical approach
101
32 THE KINETIC MODEL
102
33 MODELING OF SWELLING DYNAMICS
103
34 THE PULSATING GEL
109
Experimental data and qualitative theory
110
5 Conclusion
112
STRUCTURAL APPROACHES ON THE TOUGHNESS IN DOUBLE NETWORK HYDROGELS
117
2 Structure of DNgels by dynamic light scattering
118
2 Hydrodynamics of responsive gels in a multicomponent non reactive mixture
141
22 THERMODYNAMICS OF GELS
142
23 HYDRODYNAMICS OF GELS
146
3 Chemoelastodynamics of a gel in a reactive multicomponent system
150
32 PHENOMENOLOGY OF THE CHEMOELASTODYNAMICS
151
33 CHEMOELASTODYNAMICS EQUATIONS OF EVOLUTION
153
4 Autonomous volume oscillations induced by the BZ reaction
156
5 Conclusion and perspectives
168
AUTONOMOUS RHYTHMIC DRUG DELIVERY SYSTEMS BASED ON CHEMICAL AND BIOCHEMOMECHANICAL OSCILLATORS
174
2 pH oscillator driven drug delivery
179
3 Hydrogelenzyme oscillator for rhythmic GnRH delivery
186
STRUCTURE FORMATION AND NONLINEAR DYNAMICS IN POLYELECTROLYTE RESPONSIVE GELS
203
2 Distributed molecular information processing media
205
3 Design of smart materials exhibiting mechanochemical oscillation behaviour
214
NONLINEAR CHEMICAL DYNAMICS IN SYNTHETIC POLYMER SYSTEMS
220
11 WHAT IS SPECIAL ABOUT POLYMERS?
222
3 Approaches to nonlinear dynamics in polymeric systems
224
COUPLING TO ANOTHER NONLINEAR SYSTEM
225
USING THE INHERENT NONLINEARITIES IN A POLYMER SYSTEM
226
4 Frontal polymerization
227
42 THERMAL FRONTAL POLYMERIZATION
229
43 CONVECTIVE INSTABILITIES
234
5 Conclusions
236
INTERNAL STRESS AS A LINK BETWEEN MACROSCALE AND MESOSCALE MECHANICS
241
2 Mesoscale description of internal stress
242
22 INTERNAL STRESS IS THE CIRCULATION OF MOMENTUM FLUX
243
3 Sensor working on the thermally fluctuating scale
246
5 Macroscale emergence of internal stress
247
52 INTERNAL STRESS IN THE RHEOLOGICAL MODEL
248
ON SOME PASSIVE AND ACTIVE MOTION IN BIOLOGY
251
2 Basic model for passive motion
254
22 VESICLES UNDER NONEQUILIBRIUM CONDITIONS
257
23 VESICLES UNDER UNBOUNDED SIMPLE SHEAR FLOW
260
micromacro link
265
31 STRESS AVERAGE
266
4 Actin assisted motility
268
5 Model for symmetry breaking in actin gel
269
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