how do you mass produce and manufacture nano particles?

Question: how do you mass produce and manufacture nano particles?
- Keywords:
  nano,
  nano-technology,
  particle,
  produce,
  production,
  research
Asked by poodle to Katherine on 19 Mar 2012.
- Katherine Haxton answered on 19 Mar 2012:
  
  Hello poodle,
  
  If you do very careful chemical reactions, and form particles very slowly, it’s possible to control it enough so that you only make nanoparticles. Other things help control the reactions like temperature, how fast it stirs and how much stuff you add. By controlling the reactions like that, you can make things on a big scale, and make tiny things.
  
  The zeolites I make form tiny crystals that are nanosized – it’s how we do the reactions that make them. The polymers, dendrimers (the snowflake bit) are made by lots of reactions and we just stop doing more reactions when they get to the right size. Both zeolites and dendrimers can be made on big scales (kilograms or more).
  
  Other ways of making nanoparticles include bashing up bigger things and using sieves to get the right size, electrospray where solutions of charged chemicals are sprayed into a chamber and make really fine powders or fibres (smaller nozzle on the sprayer = smaller stuff)

Question: how do you mass produce and manufacture nano particles?