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Invited Lecture

Tuning Mechanical Properties of Spider Cuticle by its Composition and by Structural Gradients

Wednesday (07.06.2017)
15:10 - 15:50 Förde II + III
Part of:
12:20 Invited Lecture Similarities and differences between magnetic hysteresis and hysteresis in phase transformations 0 Richard James
13:00 Invited Lecture Discovery and Design of Multifunctional Materials using Combinatorial and High-Throughput Experimentation 1 Prof. Dr. Alfred Ludwig
15:10 Invited Lecture Tuning Mechanical Properties of Spider Cuticle by its Composition and by Structural Gradients 0 Dr. Yael Politi
15:50 Invited Lecture Surfaces and Gels for controlling Calcium Phosphate Deposition 0 Prof. Dr. Andreas Taubert
17:40 Invited Lecture Probing the Structure and Dynamic Behaviors of Ferroelectrics by Electron Microscopy with Atomic Resolution in Real Time 0 Prof. Xiaoqing Pan
18:20 Invited Lecture Magnetoelectric Composites for Energy Harvesting 1 Robert E. Hord, Jr. Professor Shashank Priya
19:40 Invited Lecture Declamping in Lead Magnesium Niobate – Lead Titanate Films 1 Prof. Susan Trolier-McKinstry
20:20 Invited Lecture Integrated Magnetics and Multiferroics for Compact and Power Efficient Sensing, Power, RF, Microwave and mm-Wave Electronics 0 Prof. Nian X. Sun
21:00 Invited Lecture From Maxwell’s displacement current to nanogenerator driven self-powered systems and blue energy 0 Prof. Zhong Lin Wang
21:40 Invited Lecture Magnetoelectric Composites: from Sensors to Sensor Systems 0 Prof. Dr.-Ing. Gerhard Schmidt
22:20 Invited Lecture Metal–insulator transition in vanadium oxides films and its applications 1 Dr. Keisuke Shibuya
00:20 Invited Lecture In operando photoemission spectroscopy of PMN-PT interfaces 0 Prof. Dr. Kai Rossnagel
08:30 Invited Lecture Titanium-Tantalum High Temperature Shape Memory Spring Actuators 1 Prof. Dr. Gunther Eggeler
09:10 Invited Lecture Vortex-antivortex topological structures in multiferroic tunnel junctions 1 Dr. Ana Sanchez
09:50 Invited Lecture Artificial Ferroic Systems 1 Prof. Laura Heyderman
17:40 Invited Lecture Biomimicry at the molecular level: Molecularly imprinted polymers as synthetic antibody mimics 0 Karsten Haupt
Session Chair
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The cuticular exoskeleton of arthropods not only serves the support and protection of the animal but also comprises a variety of tools and sensors. Although built of the same building blocks as the rest of the cuticle these tools and sensory organs often show specific multiscale architectural and compositional gradients. These in turn govern the local materials´ properties, supporting the adaptation of these structures to their specific biological functions.

Among the different cuticular structures of the spider Cupiennius salei we study tools like the cheliceral fangs and tarsal claws and mechanosensors such as the slit sensilla. Our goal is to gain understanding on how cuticle composition and structural properties contribute to a specific functions. We use a variety of structural and spectroscopic methods and correlate our findings with local mechanical properties of the material. They may also help to elucidate principles aiding the design of bio-inspired new materials, embedded sensors and various technical tools.  




Dr. Yael Politi
Max Planck Institute of Colloids and Interfaces
Additional Authors:
  • Prof. Dr. Peter Fratzl
    Max-Planck-Institut für Kolloid- und Grenzflächenforschung
  • Prof. Friedrich G. Barth
    University of Vienna