What are magnetic nanoparticles and how can they be used in medicine? Oregon State Associate Professor Pallavi Dhagat and graduate student Phil Lenox explain the very sensitive techniques they are developing using magnetic nanoparticles to detect a biomarker for disease in just a drop of blood or look deep inside the human body.
Biosensor technology is used to detect a wide variety of substances — from drugs, to cancer biomarkers, to chemical contaminants in our food and drinking water. Diatoms — tiny, single-celled plants found in water all over the planet — are playing a big role in a new type of biosensor being developed by Alan Wang at Oregon State. The new technology has a high selectivity and sensitivity, and is much less expensive than traditional methods of detection.