Strong understanding of low-Reynolds-number flow, mixing, pressure drop, residence time, and microfluidic nanoparticle formation, including how mixing parameters impact particle size, polydispersity, and encapsulation efficiency. Hands-on fabrication experience across at least two of the following: injection molding, hot embossing, laser micromachining, CNC micro-milling, film lamination, laser or ultrasonic welding, and pressure-sensitive adhesive bonding.