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Hi - This will be too late for your project, but if somebody else sees this:You want to use magnet wire - that is, very thin single strand copper wire with just a thin layer of lacquer as an insulation. Look at the picture for step 3 - the proper wire about the thickness of hair.And no, you cannot use the ready-made inductors. Most of these are build to be used as electronic components, and they are small to fit on circuit boards. A metal detector works by bringing some conductive material into the inside of a coil - the coil of a metal detector is large so that you can test a larger area
Quinine fluorescence is a different mechanism - the electrons in the molecule get bumped up into a higher energy level by the UV or blue light, they loose some energy as heat, and then release the remainder as a fluorescence photon. It seems that people are not quite sure yet how the emission works in carbon quantum dots, but for regular quantum dots the dimensions of the particle determine the wavelength/energy of the photon that can be emitted.
I ended up buying a bundle of laser pointers (Red, green, blue) from a Chinese site on Amazon, and the price was not all that bad.