This is a "basket" for a cuvette used in spectroscopy. In my research I degrade thin films coated onto small slides. I need to characterize the size of the particles coming from the films and I really hate wasting cuvettes by jamming wedges in them to prvent my films from falling into the measurement area. This basket works with any square topped microcuvette and will hold anything small enough to fit in a cuvette. Mind the pore size as each pore is roughly 1/4 the surface area of the bottom of the cuvette. Useable for degradation type experiments or any application where a large mass needs to sit above the measurement field while it releases particles. Feel free to adapt for more uses as well.