Controlling the Cassie-to-Wenzel Transition: an Easy Route towards the Realization of Tridimensional Arrays of Biological Objects

Gabriele Ciasca, Massimiliano Papi*, Michela Chiarpotto, Ennio Giovine, Gaetano Campi, Annamaria Gerardino, Marco De Spirito, Luca Businaro

*Autore corrispondente per questo lavoro

Risultato della ricerca: Contributo in rivistaArticolopeer review

8 Citazioni (Scopus)

Abstract

In this paper we provided the evidence that the Cassie-to-Wenzel transition can be exploited\r\nas an effective micro-fabrication strategy to obtain highly ordered three-dimensional (3D) arrays of biological\r\nobjects. To this purpose we fabricated a patterned surface wetted in the Cassie state where we deposited a\r\ndroplet containing genomic DNA.We found that, when the droplet wets the surface in the Cassie state, an array\r\nof DNA filaments pinned on the top edges between pillars are formed. Conversely when the Cassie-to-Wenzel\r\ntransition occurs, DNA can be pinned at different height between pillars. These results open the way to the\r\nrealization of 3D array of biological objects
Lingua originaleInglese
pagine (da-a)280-286
Numero di pagine7
RivistaNano-Micro Letters
Volume6
Numero di pubblicazione3
DOI
Stato di pubblicazionePubblicato - 2014

All Science Journal Classification (ASJC) codes

  • Materiali Elettronici, Ottici e Magnetici
  • Superfici, Rivestimenti e Pellicole
  • Ingegneria Elettrica ed Elettronica

Keywords

  • DNA
  • Superhydrophobic patterned surfaces

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