Julie Y. Chen is the Particle Science Liaison at HORIBA and the founder of JCAnalysis, an analytical testing service based in Southern California specializing in nano-to-subvisible materials. She partners with key opinion leaders (KOLs), bridging the gap between HORIBA and prospective customers to drive growth and innovation. A University of California, Irvine graduate in Chemistry with a focus on Biochemistry, Julie brings nearly two decades of expertise in particle characterization, business development, collaborative studies, and emerging opportunities. Outside of work, she is a wife and proud mom of two young daughters

Abstract:
Advancing Nanoparticle Tracking Analysis (NTA): Simultaneous Multispectral Detection for Accurate Enumeration and Sizing
Nanoparticle Tracking Analysis (NTA) is increasingly essential as regulatory guidance on nanomaterials shift to number-based metrics. By visualizing and tracking the Brownian motion of individual particles, NTA delivers size and concentration for applications such as extracellular vesicles, microplastics, nanobubbles, protein aggregation or liposomes, where ensemble methods fall short. Recent improvements in simultaneous multispectral detection and optical design have enhanced reproducibility and resolution, positioning NTA as a cornerstone technique for quantitative characterization across biologics, environmental samples, and industrial nanomaterials. In this talk, we will discuss features of the HORIBA ViewSizer 3000 for various sectors.