Liquid crystals and flow elongation in a spider's silk production line

Proceedings of the Royal Society B: Biological Sciences

Volumn 266, Issue 1418, 1999, Pages 519-523

  Knight, D P ^a   Vollrath, F ^a,b  

^a AARHUS UNIVERSITY   (Denmark)

^b UNIVERSITY OF OXFORD   (United Kingdom)

Author keywords

Biopolymer; Drawing; Filament; Mesophase; Transition

Indexed keywords

BIOPOLYMER;

ANIMAL TISSUE; ARTICLE; FEMALE; FLOW KINETICS; LIQUID CRYSTAL; MOLECULAR BIOLOGY; NONHUMAN; POLARIZATION MICROSCOPY; PRIORITY JOURNAL; SILK; SPIDER; VATER PAPILLA;

ANIMALIA; ARANEAE;

EID: 0033531474     PISSN: 09628452     EISSN: 14712970     Source Type: Journal    
DOI: 10.1098/rspb.1999.0667     Document Type: Article

References (19)

1. Bunning, J. D. & Lydon, J. E. 1996 The cellular optical texture of the lyotropic nematic phase of the caesium pentadecafluoro-octanoate(CsPFO)/water system in cylindrical tubes. Liquid Crystal. 20, 381-385.
2. Cappello, J. & McGrath, K. P. 1994 Spinning of protein polymer fibers. In Silk polymers: materials science and biotechnology (ed. D. Kaplan, W. W. Adams, C. Viney & B. L. Farmer), pp. 311-327. Washington: American Chemical Society.
3. Chen, G.-Y., Cuculo, J. A. & Tucker, P. A. 1992 Characteristics and design procedure of hyperbolic dies. J. Polymer Sci. B: Polymer Phys. 30, 557-561.
4. Fox, P. G. 1980 The toughness of tooth enamel, a natural fibrous composite. J. Materials Sci. 15, 3113-3121.
5. Frische, S., Maunsbach, A. & Vollrath, F. 1997 Elongate cavities and skin-core structure in Nephila spider silk observed by electron microscopy. J. Microscopy, 189, 64-70.
6. Garg, S. K. & Kenig, S. 1988 Development of orientation during the processing of liquid crystalline polymers. In High modulus polymers: approaches to design and development (ed. A. E. Zachariades & R. S Porter), pp. 71-104. New York and Basel: Marcel Dekker.
7. Ginzburg, V. V. 1993 Kinetic-model of fiber drawing. Polymer 34, 5123-5127.
8. Kaplan, D. L., Adams, W. W., Viney, C. & Farmer, B. L. 1994 Silk polymers: materials science and biotechnology. Washington: ACS Books.
9. Kerkam, K., Viney, C., Kaplan, D. & Lombardi, S. 1991 Liquid crystallinity of natural silk secretions. Nature 349, 596-598.
10. Knight, D. P., Hu, X. W., Gathercole, L. J., Rusaouën-Innocent, M., Ho, M.-W. & Newton, R. 1996 Molecular orientations in an extruded collagenous composite, the marginal rib of the egg capsule of the dogfish Scyliorhinus canicula; a novel lyotropic liquid crystalline arrangement and how it is defined in the spinneret. Phil. Trans. R. Soc. B 351, 1205-1222.
11. Knight, D. P., Hu, X. W., Newton, R. H., Cipollone, M., Gathercole, L. J. & Koob, T. 1997 Spinnerets in fish extrude sheet material with complex molecular orientations. J. Biomimetics 4, 105-120.
12. Newton, R. H., Haffegee, J. P. & and Ho, M.-W. 1995 Colour contrast in polarised light microscopy of weakly birefringent biological specimens. J. Microscopy 180, 127-131.
13. Vollrath, F. & Knight, D. P. 1998 Structure and function of the silk production pathway in the spider Nephila edulis. Int. J. Biol. Macromol. (In the press.)
14. Vollrath, F., Holtet, T., Thogersen, H. C. & Frische, S. 1996 Structural organisation of spider silk. Proc. R. Soc. Lond. B 263, 147-151.
15. Vollrath, F., Knight, D. P. and & Hu, X.W. 1998 Silk production in a spider involves acid bath treatment. Proc. R. Soc. Lond. B 265, 817-820.
16. Willcox, P. J., Gido, S. P., Muller, W. & Kaplan, D. L. 1996 Evidence of a cholesteric liquid crystalline phase in natural silk spinning processes. Macromolecules 29, 5106-5110.
17. Wilson, R. S. 1962a The control of dragline spinning in the garden spider. Quart. J. Microscop. Sci. 103, 557-571.
18. Wilson, R. S. 1962b The structure of the dragline control valves in the garden spider. Quart. J. Mmicroscop. Sci. 103, 549-555.
19. Wilson, R. S. 1969 Control of dragline spinning in certain spiders. Am. Zool. 9, 103-111.