Researchers at Colorado State University have developed a low-cost, real-time sensor for algae cultivation. This sensor measures biomass concentration and cellular health by analyzing light absorbance and color. It offers a linear, accurate, and reliable alternative to traditional sampling and lab-based spectrophotometry. Designed for use in open ponds, it simplifies large-scale algae monitoring.
Algae cultivation is vital for industries like biofuels, nutraceuticals, and wastewater treatment. However, scaling up production poses challenges in monitoring biomass concentration and cellular health. Current methods are time-consuming, expensive, or unsuitable for large-scale operations. This sensor addresses the gap by providing real-time, in situ measurements in cultivation ponds, making large-scale algae production more efficient and sustainable.
This innovative sensor measures light absorbance and color across multiple wavelengths to determine algae biomass and cellular health. By detecting changes in color caused by stress, contamination, or disease, it provides early indicators of cultivation issues. Initial tests show a strong linear correlation between sensor readings and traditional spectrophotometers, with the sensor offering a larger measurement range and reduced sensitivity to ambient light. Future developments include automated controls, improved power efficiency, and enhanced signal transfer, further expanding its capabilities. Compared to traditional methods, this sensor eliminates the need for frequent sampling, making real-time monitoring in large-scale systems more practical and cost-effective.
Available for Exclusive Licensing
TRL: 4
US Provisional Patent
Ken Reardon
Elliot Ferrell-Carretey
Rob Walder
Jessy McGowan
Jessy.McGowan@colostate.edu
970-491-7100