Paper 13311-44
Paper 13311-44
Wall proximity effect on microparticles observed via dynamic laser speckle analysis
26 January 2025 • 5:30 PM - 7:00 PM PST | Moscone Center, Room 2003 (Level 2 West)
Abstract
This study employs dynamic laser speckle analysis (DLSA) to differentiate red blood cell (RBC) sedimentation within a cuvette containing non-Newtonian oils, positioned behind medical phantoms made of Intralipid. DLSA revealed significant differences in sedimentation patterns due to the proximity wall effect of veins. This non-invasive method offers a quantitative assessment tool for similar physiological phenomena, with potential clinical applications for detecting RBC sedimentation under tissue.
Presenter
Washington Univ. in St. Louis (United States)
Vahid Abbasian is a graduate research assistant at the Department of Radiation Oncology in Washington University School of Medicine in St. Louis, studying Imaging Science at the university. He received his BSc and MSc degrees, both in Physics. In his MSc, he focused on Optics and extended microsphere-assisted microscopy into digital holography to obtain super-resolved 3D images. He showed the capabilities of the setup by using it for precise cell identification and surface profilometry. Vahid's current research focuses on developing simple and cost-effective, yet efficient optical imaging and sensing approaches for life and material sciences applications. He is a student member of SPIE and OPTICA and the associated student chapter at Washington University (WU Spectra). Vahid has published papers in Nature, Optica, IOP Publishing, and Elsevier journals and has served as an ad-hoc reviewer for Optica Publishing group, AIP Publishing, and Elsevier.