In this webinar, Dr. Laura Pala explains how the Karitro MP macro mass photometer measures the size and contrast (related to mass) of viral vectors at the single-particle level, enabling characterization of purity, populations, and physical titer of viral vector samples with speed, accuracy and no need for labels or other sample modification. Through case studies and benchmarking data, she will demonstrate how macro mass photometry can be used to streamline production and purification methods for cell and gene therapies.