The high precision of laser micro-dissecton allows for isolation of single cells and even sub-cellular components, such as nuclei, nucleus free cytoplasm, and chromosomes [ 32].
"That is how we came up with the hay hypothesis," Bisig said — the idea that microscopic hay particles in the milk were serving as nuclei.
Instead, they are grouped together in paired clusters of cell bodies known as nuclei.
These particles act as nuclei on which water vapour condenses to form clouds.
Earlier work had suggested that dark matter seeded the early universe, acting as nuclei around which visible matter clumped into galaxies.
In the atmosphere, however, there is an abundant supply of aerosols, which serve as nuclei, called condensation nuclei, on which water vapour may condense.
Particles of salt formed by the evaporation of ocean spray act as nuclei around which the droplets of water that form clouds can condense.
In addition, some metals serve as nuclei for others to grow on.
Here, it is shown that structurally converted low molecular weight oligomers can act as nuclei.
