Send to

Choose Destination
See comment in PubMed Commons below
Proc Natl Acad Sci U S A. 2011 Sep 13;108(37):15106-11. doi: 10.1073/pnas.1110676108. Epub 2011 Sep 6.

3D lithography by rapid curing of the liquid instabilities at nanoscale.

Author information

  • 1Consiglio Nazionale delle Ricerche Istituto Nazionale di Ottica-Sezione di Napoli, Via Campi Flegrei, 34-80078 Pozzuoli, Naples, Italy.


In liquids realm, surface tension and capillarity are the key forces driving the formation of the shapes pervading the nature. The steady dew drops appearing on plant leaves and spider webs result from the minimization of the overall surface energy [Zheng Y, et al. (2010) Nature 463:640-643]. Thanks to the surface tension, the interfaces of such spontaneous structures exhibit extremely good spherical shape and consequently worthy optical quality. Also nanofluidic instabilities generate a variety of fascinating liquid silhouettes, but they are however intrinsically short-lived. Here we show that such unsteady liquid structures, shaped in polymeric liquids by an electrohydrodynamic pressure, can be rapidly cured by appropriate thermal treatments. The fabrication of many solid microstructures exploitable in photonics is demonstrated, thus leading to a new concept in 3D lithography. The applicability of specific structures as optical tweezers and as novel remotely excitable quantum dots-embedded microresonators is presented.

[PubMed - indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire Icon for PubMed Central
    Loading ...
    Support Center