Communication

Helical Twisting of Electrospun Liquid Crystalline Cellulose Micro- and Nanofibers†

  1. João P. Canejo1,
  2. João P. Borges1,
  3. M. Helena Godinho1,*,
  4. Pedro Brogueira4,5,
  5. Paulo I. C. Teixeira2,3,*,
  6. Eugene M. Terentjev6

Article first published online: 22 OCT 2008

DOI: 10.1002/adma.200801008

Issue

Advanced Materials

Advanced Materials

Volume 20, Issue 24, pages 4821–4825, December 17, 2008

Additional Information

How to Cite

Canejo, J. P., Borges, J. P., Godinho, M. H., Brogueira, P., Teixeira, P. I. C. and Terentjev, E. M. (2008), Helical Twisting of Electrospun Liquid Crystalline Cellulose Micro- and Nanofibers. Adv. Mater., 20: 4821–4825. doi: 10.1002/adma.200801008

Author Information

  1. 1

    Departamento de Ciência dos Materiais and CENIMAT/I3N Universidade Nova de Lisboa, Caparica 2829-516 Caparica (Portugal)

  2. 2

    Instituto Superior de Engenharia de Lisboa Rua Conselheiro Emídio Navarro, 1950-062 Lisboa (Portugal)

  3. 3

    Centro de Física Teórica e Computacional, Universidade de Lisboa Avenida Professor Gama Pinto 2, 1649-003 Lisboa (Portugal)

  4. 4

    Departamento de Física, Instituto Superior Técnico Avenida Rovisco Pais, 1049-001 Lisboa (Portugal)

  5. 5

    Instituto de Ciência e Engenharia de Materiais e Superfícies, Instituto Superior Técnico Avenida Rovisco Pais, P-1049-001 Lisboa (Portugal)

  6. 6

    Cavendish Laboratory, University of Cambridge J. J. Thomson Avenue, Cambridge CB3 OHE (UK)

*Departamento de Ciência dos Materiais and CENIMAT/I3N Universidade Nova de Lisboa, Caparica 2829-516 Caparica (Portugal).

  1. †

    This work was supported by the Portuguese Science Foundation (FCT) through Projects POCI/CTM/56382/2004 and POCTI/CTM/38330/2001, and through Pluriannual contracts with CENIMAT/I3N and ICEMS; and by the GRICES/Treaty of Windsor Programme through grant no. B-20/08. J. P. Canejo gratefully acknowledges FCT for grant SFRH/BD/37958/2007.

Publication History

  1. Issue published online: 16 DEC 2008
  2. Article first published online: 22 OCT 2008
  3. Manuscript Revised: 4 JUN 2008
  4. Manuscript Received: 11 APR 2008

Funded by

  • GRICES/Treaty of Windsor Programme. Grant Number: B-20/08
  • FCT. Grant Number: SFRH/BD/37958/2007

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Keywords:

  • cellulose;
  • liquid crystals;
  • nanofibers;
  • electrospinning;
  • helices;
  • chirality;
  • modelling
Thumbnail image of graphical abstract

Helically twisted fibers can be produced by electrospinning liquid-crystalline cellulose solutions. Fiber topographies are studied by atomic force microscopy, scanning electron microscopy (see figure) and polarized optical microscopy. The fibers have a nearly universal pitch-to-diameter ratio and comprise both right- and left-handed helices.

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