I have made some nano-tech, designed some microprocessors and still know a lot about it. Yet I don't see anything of that in these images and videos.

Does Dr Nagase know about how you make circuitry for nano-tech? You need at least 10,000 perfectly connected transistors for a minimum digital receiver, plus a good antenna and power source. These transistors need to be projected via blue light (or ultra-violet) onto the perfect place, in series of about 100 chemical processes. A few nanometers off can break the whole circuit.

What I do see is that there are some crystals that have layers and rectangular shapes. That is actually very common, but depends on the circumstances.
These shapes can tell us a bit what they are. Simple crystals like graphite and ice have 6 sided shapes, sugar and salt 2 sided. They look a bit similar to cholesterol crystals, but I suspect that it is a molecule related to the Lipid Nano Particles (LNP). These LNP are also made to hook up cells, so these LNP and crystals may cause severe damage. And that may explain those other structures.