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Articles by André Knapp
Wrinkling‐Based Patterning and Recombinant Spider Silk‐Based Coating Technologies ‐ Toward Novel Applications
1 Wrinkling for Scalable Patterning and Functional Interfaces Wrinkle structures are a ubiquitous phenomenon in nature, appearing across a wide range of length scales -— from meter-scale patterns in solidified lava flows,[1] to micron-scale features such as human fingerprints, and even sub-micron wrinkles observed on the surfaces of biological tissues, such as the cornea of zebrafish.[2] These patterns originate from mechanical instabilities that arise when thin layers are subjected to...
Mechanically interlocked monolayer and bilayer two-dimensional polymers with high elastic modulus
Two-dimensional polymers (2DPs), comprising mono- or multilayer covalent polymeric networks with long-range order in two orthogonal directions, are of considerable interest due to their unique physicochemical properties. However, achieving precise thickness control from monolayer to bilayer, crucial for exploring proximity effect-driven phenomena beyond the monolayer limit, remains synthetically challenging.
Field Simulation of Structured Cylindrical Silicon Interfaces for Power Cable Accessories
Power cables serve a crucial role in connecting transmission and distribution utilities as a part of expansion in the electricity grid with the recent trend. The electric potential separation in cable applications (joints, bushings and terminations) is controlled by the electrical strength between the solid interfaces.
Interfacial behaviour of structured planar silicone interfaces for power cable accessories
The interfaces in cable accessories form the weakest link in the cable system and can be considered as one of the major reasons for its failure. The parameters such as surface smoothness, contact pressure and temperature in the interfaces govern the interfacial electrical withstand strength. An imperfect surface smoothness of the material creates voids at dielectric interfaces which are inevitable, initiating the partial discharges (PD).
Transfer‐Printed Wrinkled PVDF‐Based Tactile Sensor‐Nanogenerator Bundle for Hybrid Piezoelectric‐Triboelectric Potential Generation
1 Introduction The human sense of touch is incredibly detailed and important for interacting with the world and detecting small changes in pressure and texture.
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