Experimental Soft Matter Physics

New review article on modern liquid crystal research

A new review article by Prof. Giusy Scalia and Prof. Lagerwall entitled A new era for liquid crystal research: Applications of liquid crystals in soft matter nano-, bio- and microtechnology and published in Current Applied Physics is now available on-line. The paper focuses on the exciting development that liquid crystal research is currently undergoing, with branches into numerous directions of soft matter and nanotechnology research, and it presents a selection of some of these stimulating research themes. Elsevier has made the article free for anyone to download, even without subscription to the journal. The abstract of the article is as follows:
Liquid crystals constitute a fascinating class of soft condensed matter characterized by the counter-intuitive combination of fluidity and long-range order. Today they are best known for their exceptionally successful application in flat panel displays, but they actually exhibit a plethora of unique and attractive properties that offer tremendous potential for fundamental science as well as innovative applications well beyond the realm of displays. Today this full breadth of the liquid crystalline state of matter is becoming increasingly recognized and numerous new and exciting lines of research are being opened up. We review this exciting development, focusing primarily on the physics aspects of the new research thrusts, in which liquid crystals - thermotropic as well as lyotropic - often meet other types of soft matter, such as polymers and colloidal nano- or microparticle dispersions. Because the field is of large interest also for researchers without a liquid crystal background we begin with a concise introduction to the liquid crystalline state of matter and the key concepts of the research field. We then discuss a selection of promising new directions, starting with liquid crystals for organic electronics, followed by nanotemplating and nanoparticle organization using liquid crystals, liquid crystal colloids (where the liquid crystal can constitute either the continuous phase or the disperse phase, as droplets or shells) and their potential in e.g. photonics and metamaterials, liquid crystal-functionalized polymer fibers, liquid crystal elastomer actuators, ending with a brief overview of activities focusing on liquid crystals in biology, food science and pharmacology.