Aktif maddenin akustik ve optik manipülasyonu

This thesis explores the acoustic and optical manipulation of active matter, emphasizing both fundamental principles and biomedical applications. Active matter systems, such as flocks of sheep, schools of fish, bacterial colonies, and Janus particles in engineered media, naturally operate out of equilibrium, converting environmental energy into autonomous motion. The study begins with a theoretical foundation of Brownian and active motion in microscopic systems and progresses to experimental manipulation using a nanosecond pulsed laser. This laser system contributes to particle control and biomedical imaging through photoacoustic visualization of mouse placental tissues, enabling label-free detection of vascular structures and revealing morphological changes associated with circadian rhythm disruption. A primary experimental focus is the precise control of Janus particles, where the effects of laser energy and beam spot size on particle dynamics are systematically analyzed. Complementary simulations further examine acoustic and optical trapping mechanisms. This work advances our understanding of contactless particle manipulation and lays the groundwork for future non-invasive diagnostic and drug delivery technologies.