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Adhesion mechanisms in micropatterned dry adhesives with hierarchical structure

Member of the SPP1420 from 2013 till 2015

Abstract

The project aims to fabricate, test and understand the mechanics of fibrillar dry adhesive surfaces that imitate reversible attachment systems of insects and geckos. While single-level structures have been realized and studied extensively in recent years, the few attempts to create multi-level hierarchical structures have so far not led to useful adhesive properties, especially against rough surfaces. Guided by recent theoretical models and using unconventional patterning techniques, such hierarchical systems (as present in the gecko’s attachment pads) will be fabricated from polymers. Their mechanical behaviour will be investigated with micromechanical tests including in situ optical observation of the deformation on different levels and analysis of contact formation and separation. The adhesion forces vis-à-vis smooth and in particular rough surfaces will be measured and compared with theoretical adhesion models, which may have to be extended. The project will thus lay the foundations for reversible artificial adhesives for surfaces of any degree of roughness.

Publications

 

Peer-Reviewed Publications

  • D. Brodoceanu, C. Bauer, E. Kroner, E. Arzt, T. Kraus, Hierarchical bioinspired adhesives – a review, in preparation
  • V. Barreau, R. Hensel, N. Guimard, A. Ghatak, E. Arzt, Adhesive and non-adhesive regimes of bio-inspired fibrillar elastomers on rough substrates, in preparation
  • D. Brodoceanu, H. Z. Alhmoud, R. Elnathan, B. Delalat, N. H. Voelcker, T. Kraus, "Fabrication of silicon nanowire arrays by near-field laser ablation and metal-assisted chemical etching”, submitted
  • C. T. Bauer, E. Kroner, N. A. Fleck, E. Arzt, “Hierarchical macroscopic fibrillar adhesives: In-situ study of buckling and adhesion mechanisms on wavy substrates“, Bioinspiration & Biomimetics 10 (2015) 066002 http://dx.doi.org/10.1088/1748-3190/10/6/066002
  • R. Elnathan, B. Delalat, D. Brodoceanu, H. Alhmoud, F. J. Harding, K. Buehler, A. Nelson, L. Isa, T. Kraus, N. H. Voelcker, "Maximizing Transfection Efficiency of Vertically Aligned Silicon Nanowire Arrays" Advanced Functional Materials, published online: http://dx.doi.org/10.1002/adfm.201503465

  • R. Elnathan, L. Isa, D. Brodoceanu, A. Nelson, F. J. Harding, B. Delalat, T. Kraus, N. H. Voelcker, "Versatile Particle-Based Route to Engineer Vertically Aligned Silicon Nanowire Arrays and Nanoscale Pores" ACS Applied Materials & Interfaces 7, 23717–23724
  • D. Brodoceanu, R. Elnathan, B. Prieto-Simón, B. Delalat, T. Guinan, E. Kroner, N. H. Voelcker, T. Kraus, "Dense arrays of uniform submicron pores in silicon and their applications", ACS Applied Materials & Interfaces 7, 1160-1169 (2015) http://dx.doi.org/10.1021/am506891d

  • T. Kraus, D. Brodoceanu, N. Pazos-Perez, A. Fery, "Colloidal surface assemblies: Nanotechnology meets bioinspiration", Advanced Functional Materials 23, 4529-4541 (2013) http://dx.doi.org/10.1002/adfm.201203885

  • D. Brodoceanu, C. Fang, N. H. Voelcker, C. T. Bauer, A. Wonn, E. Kroner, E. Arzt, T. Kraus, "Fabrication of metal nanoparticle arrays by controlled decomposition of polymer particles", Nanotechnology 24, 085304 (2013) http://dx.doi.org/10.1088/0957-4484/24/8/085304

  • C. T. Bauer, A. Wonn, D. Brodoceanu, P. Born, E. Kroner, T. Kraus, "Size and shape evolution of PS particle layers during etching" Bioinspired, Biomimetic and Nanobiomaterials 2, 130-140 (2013) http://dx.doi.org/10.1680/bbn.13.00002

  • C. Fang, D. Brodoceanu, T. Kraus, N. H. Voelcker, "Templated silver nanocube arrays for single-molecule SERS detection", RSC Advances 3, 4288-4293 (2013) http://dx.doi.org/10.1039/C3RA22457K


Proceedings and Book Chapters

  • D. Brodoceanu, T. Kraus, "Micro- and nanopatterning of biomaterial surfaces" In: Biomaterials Surface Science / Taubert, Andreas, Mano, Joao F., Rodriguez-Cabello, Jose Carlos.- Weinheim: Wiley-VCH, 287-310, (2013) http://dx.doi.org/10.1002/9783527649600.ch10

 

Conference Contributions

  • D. Brodoceanu, C. T. Bauer, E. Kroner, E. Arzt and T. Kraus,Fabrication and Characterization of Hierarchical Bioinspired Dry Adhesive Surfaces, submitted to Euro Bio-Inspired Materials 2016.
  • R. Hensel, V. Barreau, A. Ghatak, N. Guimard, E. Arzt, Enigineering Life, Dresden, Germany, 29 September – 1 October 2015 “Adhesion of fibrillar dry adhesives on rough substrates” (Poster)
  • R. Hensel, V. Barreau, N. Guimard, E. Arzt, GRC-Science of Adhesion, South Hadley, MA, USA 26-31 July 2015 “Adhesion of fibrillar dry adhesives on rough substrates” (Poster)
  • V. Barreau, R. Hensel,  N. K. Guimard, E. Arzt, workshop Tailored Materials Interfaces, Saarbrücken, Germany, 29-30 June 2015 “Effect of substrate rougness on the adhesive strength of biologically inspired fibrillar attachment structures” (Poster)
  • D. Brodoceanu, R. Elnathan, B. Prieto-Simón, H. Z. Alhmoud, B. Delalat, T. Guinan, E. Kroner, N. H. Voelcker, T. Kraus, E-MRS, Lille, France, 11-15 May 2015, "Silicon microstructuring by particle self-assembly combined with metal-assisted chemical etching" (Oral presentation)
  • V. Barreau, N. Guimard, E. Kroner and E. Arzt The Adhesion Society, 38th Annual Meeting, Savannah, USA, 20-25 February 2015, “Effect of roughness on adhesion of gecko mimicking adhesive systems” (Oral presentation)
  • D. Brodoceanu, R. Elnathan, B. Prieto-Simón, B. Delalat, T. Guinan, E. Kroner, N. H. Voelcker, T. Kraus, MRS Fall Meeting, Boston, USA, 30 November - 05 December 2014, "Dense arrays of vertical nanopores in silicon" (Oral presentation)
  • V. Boiko, N. K. Guimard, E. Kroner, E. Arzt, Doktorandentag der NTF III, Universität des Saarlandes, Saarbrücken, Germany, 12 November 2014 “Adhesion of bioinspired adhesive systems on rough surfaces” (Poster)
  • C. T. Bauer, E. Kroner, N. A. Fleck E, Arzt, 2. Doktorandentag der NTF III, Universität des Saarlandes, Saarbrücken, Germany, 12 November 2014, "Hierarchically patterned dry adhesives" (Poster)
  • V. Boiko, N. K. Guimard, E. Kroner, E. Arzt, Second International Conference on Bioinspired and Biobased Chemistry & Materials, Nice, France, 15-17 October 2014 “Adhesion of bio-inspired adhesive systems on rough surfaces” (Poster)
  • D. Brodoceanu, R. Elnathan, N. H. Voelcker, T. Kraus, Materials Science Engineering (MSE 2014), Darmstadt, Germany, 23-25 September 2014, "Dense hole arrays in silicon via colloidal lithography and metal-assisted chemical etching" (Oral presentation)
  • C. T. Bauer, E. Kroner, D. Brodoceanu, T. Kraus, N. K. Guimard, E. Arzt, Nanobrücken 2014 - Nanomechanical Testing Workshop & Hysitron User Meeting, 26-28 March 2014, Saarbrücken, "Hierarchical dry adhesives" (Poster)
  • V. Boiko, N. K. Guimard, E. Kroner, E. Arzt, Nanobrücken, Saarbrücken, Germany, 26-28 March 2014 “Adhesion of bio-inspired adhesive systems on rough surfaces” (Poster)
  • D. Brodoceanu, R. Elnathan, N. H. Voelcker, E. Kroner, E. Arzt, T. Kraus, Euro Bio-inspired Materials - 2nd International School and Conference on Biological Materials Science, Potsdam, Germany, 17-21 March 2014, "Bioinspired hierarchical structures by replica molding" (Oral presentation)
  • D. Brodoceanu, R. Elnathan, N. H. Voelcker, E. Kroner, E. Arzt, T. Kraus, 2nd International School and Conference on Bio-inspired Materials, Potsdam, Germany, 17-21 March 2014 "Bioinspired hierarchical structures by replica molding" (Poster)
  • C. T. Bauer, E. Kroner, D. Brodoceanu,T. Kraus, Tobias, E. Arzt, Doktorandentag der NTF III, Universität des Saarlandes, Saarbrücken, Germany, 13 November 2013, "Hierarchical dry adhesives" (Poster)
  • D. Brodoceanu, T. Kraus, EUROMAT 2013, Seville, Spain, 08-13 September 2013, "High aspect ratio molds for bioinspired adhesion surfaces" (Oral presentation)
  • C. T. Bauer, D. Brodoceanu, A. Wonn, P. Born, E. Kroner, E. Arzt, T. Kraus, Materials Science and Engineering 2012, Darmstadt, Germany, 25-27 September 2012, "Particle-based patterning of biomimetic structures with multiple length scales" (Oral presentation)
  • C. T. Huber, D. Brodoceanu, T. Kraus, E. Kroner, E. Arzt, Doktorandenforum der Sektion D (Leibnizgemeinschaft), Berlin, Germany, 7-8 Juni 2012, “Dry adhesives with hierarchical structure“ (Poster)
  • D. Brodoceanu, C. T. Huber, A. Wonn, Anne, P. Born, E. Kroner, T. Kraus, EIPBN 2012 - The 56th International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication, Waikola, USA, May 29 – 01 June 2012, "Metal nanoparticle arrays by controlled decomposition of polymer particles" (Poster)
  • T. Kraus, Bio-inspired Materials Conference 2012, Potsdam, Germany, 21-23 March 2012, "Particle-based routes to biomimetic surface microstructures" (Oral presentation)
  • C. T. Huber, D. Brodoceanu, A. Wonn, T. Kraus, E. Kroner, E. Arzt, Winter School SPP 1420, 19-20 March 2012, Potsdam, Germany, "Measurements of adhesion on hierarchical model gecko-structures" (Poster)
  • C. T. Huber, D. Brodoceanu, A. Wonn, T. Kraus, E. Kroner, E. Arzt, Winterschool 2012, SPP1420 (DFG Priority Programme 1420: Biomimetic Materials Research: Functionality by Hierarchical Structuring of Materials), Potsdam, Germany, 18-20 March 2012, "Adhesion mechanisms in micropatterned dry adhesives with hierarchical structures" (Oral presentation)

 

Patents

  • D. Brodoceanu, T. Kraus, C. Fang, N. H. Voelcker „Metall-Nanopartikel-Arrays und Herstellung von Metall-Nanopartikel-Arrays“, Application No. DE102012112299.7; filed 14.12.2012 (priority application).
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