Generation of bioinspired structural colors via two-photon polymerization

Zyla, Gordon; Kovalev, Alexander; Gräfen, Markus; Gurevich, Evgeny L.; Esen, Cemal; Ostendorf, Andreas; Gorb, Stanislav N.

doi:10.1038/s41598-017-17914-w

Cited by 58 publications

(54 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With increasing accuracy of micro‐3D‐printing technologies and by exploring complex patterns, noniridescent colors can be obtained. This has been recently demonstrated for 3D‐printed lamellar‐like structures similar to the ones of the Morpho butterfly, though this type of pattern only expressed an artificial blue color and was not applied to structures while moving. By exploring new computationally designed structures and integrating them into 3D microrobotic systems, structural color can become a common element not only for tracking and identification but also for creating tunable surface properties.…”

Section: Resultsmentioning

confidence: 93%

“…The integration of an aluminum oxide dielectric layer onto a network metamaterial (dealloyed Pt .14 Y .06 Al .08 ) resulted in mechanically robust and saturated structural colors due to the resonant coupling of the light with surface plasmons . TPP has been used to mimic Morpho butterfly lamella to express a blue sheen . Such photonic structures expressed different noniridescent colors that were determined by the thickness of the polymer lamellas, their orientation, and the resultant air cavities.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

3D‐Printed Microrobots with Integrated Structural Color for Identification and Tracking

Koepele

Guix

et al. 2020

Advanced Intelligent Systems

View full text Add to dashboard Cite

The implementation of two‐photon polymerization (TPP) in the microrobotics community has permitted the fabrication of complex 3D structures at the microscale, creating novel platforms with potential biomedical applications for minimizing procedure invasiveness and diagnosis accuracy. Although advanced functionalities for manipulation and drug delivery tasks have been explored, one remaining challenge is achieving improved visualization, identification, and accurate closed‐loop control of microscale robots. To enable this, distinguishable identifying and trackable features must be included on the microrobot. Toward this end, the construction of micro‐ and nanoscale patterns using TPP is demonstrated for the first time on microrobot surfaces with the intent of mimicking color‐expressing nanostructures present on beetles or butterflies. The patterns provide identification and tracking targets due to their vivid color expression under visible light. Helical and rectangular microrobots are designed with the topical patterns and further functionalized with magnetic materials to be externally actuated by magnetic fields. Vision‐based tracking of a 20 μm × 30 μm colored feature on a 100 μm‐long helical microrobot using a fixed angular position light source during microrobotic motion is shown. This versatile structural color patterning approach shows great potential for the visual differentiation of various microrobots and tracking for improved closed‐loop control.

show abstract

Section: Resultsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

3D‐Printed Microrobots with Integrated Structural Color for Identification and Tracking

Koepele

Guix

et al. 2020

Advanced Intelligent Systems

View full text Add to dashboard Cite

show abstract

“…On the other hand, as mentioned, the broader spectra are a results of LIPSS structures with higher order of defects and less regularity in the orientation and the period. This disorder in the orientation of the periodic structures could be responsible for the resulting colourisation 28,29 . Therefore, we assume that the defected LIPSS structures reveal more vivid colours.…”

Section: Discussionmentioning

confidence: 99%

Influence of defects on structural colours generated by laser-induced ripples

Maragkaki

Skaradzinski

Nett

et al. 2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

The colourisation of metallic surface which appears due to periodic surface patterns induced by ultrashort laser pulses is studied. Ripples due to the sub-micrometer size of their period act as a diffraction grating, generating structural colours. Carefully chosen strategy of the laser spot scanning allows us to mimic the nanostructures responsible for structural colours of some flowers on the metal substrate. We investigate the correlation between the colourising effects and the artificially-induced defects in the ripples structure and show that these defects can make the colours observable in a larger range of viewing angles. Further we address the influence of the processing parameters on the spectral profile of the reflected light.

show abstract

“…Each layer of the geometry is connected to the previous layer until the designed structure is completely fabricated. AM has a wide variety of applications in tissue engineering, microfluidic devices, electrochemical sensors by using polymer, metals, ceramics, and so on …”

Section: Each Layer's Processing Parametersmentioning

confidence: 99%

Stepwise Optimized 3D Printing of Arbitrary 3D Structures at Millimeter Scale with High Precision Surface

Yang

Zhao

Zheng

et al. 2019

Macro Materials & Eng

View full text Add to dashboard Cite

3D printing based on additive manufacturing has attracted widespread attention in the fields of microbiology and microelectronics due to its advantages of waste reduction, arbitrary manufacturing, and rapid prototyping in potential applications. These techniques can create structures at the centimeter scale, however, there are some limitations in terms of resolution and geometric constraints. Here, a micro–nano 3D printing protocol based on additive manufacturing to achieve the 3D structure (3DS) not only possessing millimeter scale structural dimensions but also nanometer features are proposed. A theory is verified to assist the design and fabrication of the 3DS with millimeter scale and nanometer precision. The structures are predesigned and the scanning strategy is optimized before 3D printing to improve the manufacturing efficiency and precision. A customized 3DS with a height of 2.2 mm is obtained, which is a challenge for the conventional two‐photon polymerization fabrication. Furthermore, a 1.2 mm 3DS with inside scaffold and smooth surface is efficiently achieved within 2.7 h with a nanometer surface roughness by using the proposed stepwise optimized 3D printing process. This study offers a flexible and low‐cost technology to generate highly customizable, precisely controllable 3DS for potential applications in microelectronics and microdevices.

show abstract

Generation of bioinspired structural colors via two-photon polymerization

Cited by 58 publications

References 51 publications

3D‐Printed Microrobots with Integrated Structural Color for Identification and Tracking

3D‐Printed Microrobots with Integrated Structural Color for Identification and Tracking

Influence of defects on structural colours generated by laser-induced ripples

Stepwise Optimized 3D Printing of Arbitrary 3D Structures at Millimeter Scale with High Precision Surface

Contact Info

Product

Resources

About