Polarized Light Microscopy Digital Image Gallery

Polybenzyl L-Glutamate (PBLG)

Transitions into liquid crystalline phases may be stimulated either by changes in temperature (thermotropic liquid crystals) or concentration (lyotropic liquid crystals). Polybenzyl L-glutamate (PBLG) is an example of a lyotropic liquid crystal that develops stiff helical rods in many organic solvents. These rods have often been observed to exhibit a cholesteric ordering. Similar to other substances that exhibit cholesteric phases, PBLG solutions experience a modulating refractive index due to the Bragg scattering of various colors of light caused by the helical organization of the liquid crystals.

© 1995-2019 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Wednesday, Jan 21, 2004 at 10:52 AM
Access Count Since January 23, 2004: 7631
Microscopes and digital imaging equipment provided by:
Visit the Olympus Microscopy Resource Center website. Visit the QImaging website.