Introduction Compared with EVs from blood or cell culture media, milk-derived EVs feature abundant sources, high yield and excellent in vivo tolerance, supporting both basic mechanism research and translational delivery applications. Nevertheless, commercial milk processing and inconsistent purification protocols can alter vesicle integrity, cargo-loading capacity and biological activity, leading to poor experimental reproducibility. Standardized material screening and multi-

1. Overview This application note evaluates the performance of ExoFaster-500’s dedicated built-in continuous processing mode for repeated loading of identical human plasma samples. Five sequential 1 mL plasma aliquots were loaded under the automatic continuous workflow, which integrates PBS column washing and re-equilibration between each run without manual intervention. NTA particle quantification paired with BCA protein testing, demonstrate highly consistent chromatographic

1. Overview This note compares two mainstream EV extraction workflows: ultracentrifugation (UC) and ultrafiltration pre-concentration combined with size-exclusion chromatography (UF+SEC) using the ExoFaster-500 system. Conditioned media from three cell lines were tested via multi-dimensional characterization to provide method selection guidance. 2. Materials & Protocols 2.1 Sample Preparation Conditioned media of ESC, HSC and NK cells in logarithmic phase were collected. Seri

1. Overview This application note evaluates the performance of ultrafiltration (UF) pre-concentration prior to size-exclusion chromatography (SEC) isolation of extracellular vesicles (EVs) from mouse quadriceps tissue conditioned medium using the ExoFaster-500 platform. EV yields and purity from un-concentrated crude conditioned medium and UF-concentrated samples were compared via UV absorbance profiling (A260/A280) and nanoparticle tracking analysis (NTA), demonstrating that

1. Overview This application note validates a complete workflow for extracellular vesicle (EV) isolation from E. coli culture medium, combining sequential centrifugal clarification, ultrafiltration (UF) pre-concentration and size-exclusion chromatography (SEC) on the ExoFaster-500 platform. We evaluated the impact of different pre-concentration factors (30×, 125×, 375×) on SEC separation performance, EV yield, and protein contaminant detection. 2. Experimental Protocol 2.1 Sa