ultrasonic waves to avoid excessive agglomeration of coated particles the solvent or dilutant is then removed to produce dry particles such as those shown in fig4 c or fig4 d in some cases the products were found to contain particles as shown in fig3 a and fig3 b due to agglomeration if so desired the solvent may be selected in such a manner that the solvent can penetrate through the nanocomposite shell and then dissolve the intermediate polymer shell e g 12 in fig4 c or fig4 d and eventually at least partially leach out the intermediate shell material this material can be made to be of lower molecular weight and non cross linked chains to facilitate dissolution and leaching to produce the structures of fig4 e or fig4 f alternatively the dried hollow polymer micro spheres or polymer shell porous core micro spheres may be forced to flow around inside a fluidized bed while a stream of nanocomposite suspension or solution is sprayed over these micro spheres this process tends to produce individual nanocomposite shell core particles with significantly reduced level of agglomeration the particles are mostly those depicted in fig2 c and fig2 d with a minimal amount of particles such as those in fig3 a or fig3 b direct production of nanocomposite shell.