Usually associated with display technology, liquid crystals also have many other applications and uses. In this research project we are developing liquid crystal lasers, capable of broad wavelength-tuning, multiple simultaneous colour emissions, and highly customisable outputs, all within a small, portable and low-cost architecture. We are also seeking to integrate liquid crystal lasers into new photonic systems and applications, such as biomedical imaging (e.g. fluorescence microscopy, flow cytometry), digital holographic projection, and 2D & 3D displays.
Cryptosporidium is a waterborne microorganism which causes severe diarrhoea and can be fatal for immuno-compromised individuals, infants and young children. It is estimated that Cryptosporidium contamination of drinking water results in 250-500 million cases each year in developing countries and 60,000 in the UK alone. The Cryptosporidium organism has a thick outer wall that is resistant to many conventional water treatment methods, and outbreaks are a problem even in the developed world, negatively impacting population health and economic development - daily monitoring of the water supply is required.
Current Cryptosporidium detection methods are expensive and highly time-consuming - requiring microscopic examination by skilled scientists. Furthermore, these techniques lack species and viability information, which is essential to make well-informed public health decisions. There is, therefore, a pressing need for an instrument capable of rapidly analysing drinking water samples for the presence, species and viability of Cryptosporidium microorganisms.
