A groundbreaking study has unveiled a novel method for identifying and quantifying nanoplastics within transparent bodily fluids. Conducted under the FFG bridge project Nano-VISION, this collaborative effort between Graz University of Technology and start-up BRAVE Analytics aims to explore the potential impact of nanoplastics on ophthalmology. By combining advanced optical techniques with chemical analysis, researchers have developed a system capable of detecting not only the presence but also the composition of these microscopic particles. The implications extend beyond medical science, offering applications in industrial liquid monitoring and environmental studies.
Over the past two years, a team led by Harald Fitzek from Graz University of Technology has worked alongside an ophthalmologist to investigate the role of nanoplastics in eye health. Central to their findings is a unique approach that merges optofluidic force induction with Raman spectroscopy. This hybrid technique allows scientists to analyze particle size, concentration, and chemical makeup in real-time. Initially designed to assess whether intraocular lenses release nanoplastics, the technology could redefine standards for both surgical procedures and lens manufacturing.
The detection process involves a sensor platform created by BRAVE Analytics. It draws samples through a glass tube while shining a laser into the flow. When particles interact with the light, changes in velocity provide insights into their dimensions. Furthermore, analyzing scattered laser light reveals the material properties of individual particles. According to Harald Fitzek, this method excels at distinguishing organic substances like plastics due to subtle variations in frequency readings.
Additional experiments focus on how intraocular lenses behave under various conditions. Researchers are examining spontaneous nanoplastic emissions as well as those triggered by mechanical stress or laser exposure. These results hold significant value for surgeons and manufacturers alike, promising enhanced safety measures during operations. As part of ongoing investigations, the Institute of Electron Microscopy and Nanoanalysis continues to refine its capabilities for broader applications across medicine and industry.
This innovative solution opens doors for analyzing clear body fluids such as urine, tear fluid, and blood plasma. Its adaptability extends even further, enabling continuous surveillance of liquid streams in manufacturing processes and water systems. With publication plans underway in esteemed journals, the project underscores a pivotal advancement in understanding human interaction with micro- and nanoplastics.