Selective filtration works by utilizing materials with nanopores, which are tiny holes at the nanometer scale. These pores can be engineered to allow certain particles to pass through while blocking others. The selectivity can be based on various factors, including:
Particle Size: Only particles smaller than the pore size can pass through. Chemical Affinity: Pores can be functionalized with chemical groups to attract or repel specific molecules. Charge: Filters can be designed to allow passage based on the electrical charge of particles.
