The hunt for microplastics just got a major upgrade! Scientists have developed a revolutionary technique to detect these tiny pollutants, which could be a game-changer for understanding their impact on our health. But here's the catch: current research is hindered by the lack of non-destructive methods to identify microplastics in our bodies.
A team of researchers from MedUni Vienna, in collaboration with partner institutions, has successfully tackled this challenge. They introduced a groundbreaking method called OPTIR (Optical Photothermal Infrared Spectroscopy) to locate microplastics in tissue without damaging it. This technique allows for precise identification of microplastics while keeping the tissue structure intact, enabling further analysis.
And this is where it gets fascinating: OPTIR uses infrared laser light to heat samples, causing plastics to react based on their unique chemical structures. This reaction creates an infrared fingerprint, enabling scientists to identify different types of plastics, such as polyethylene (PE), polystyrene (PS), and polyethylene terephthalate (PET).
The real breakthrough is that this method works on FFPE samples, the standard tissue type used in clinical pathology. This means researchers can now directly link microplastic detection with tissue changes, potentially uncovering the mysterious connection between microplastics and chronic diseases.
In a recent study, the team identified various microplastics in human colon tissue, with a surprising concentration in areas of inflammation. And it gets even more impressive: they can detect particles as small as 250 nanometres! This includes common plastics like PE, PS, and PET found in everyday items.
So, what does this mean for the future of microplastic research? Will this new technique finally unlock the secrets of microplastic-related health issues? Share your thoughts below, and let's explore the possibilities together.
