Joe Dunman's Schoolhouse was the only school in that school community, and it reported a student population of 13 in 1883. Harris County Common School Districts: In 1884, Texas passed the Common School Law, which provided for a system of county schools to be established across the state.
1 9. 2  Disadvantages Of Nanoparticlesï Small size & large surface area can lead to particle aggregation .ï Physical handling of nano particles is difficult in liquid and dry forms.ï Limited drug loading.ï Toxic metabolites may form.3  10. Disadvantages Of Nanoparticlesï Small size & large surface area can lead to particle aggregation .ï Physical handling of nano particles is difficult in liquid and dry forms.ï Limited drug loading.ï Toxic metabolites may form. 2  10.
Nanoparticles range in size from about 100 nm down to about 1 nm. They are typically the size of small molecules, and far too small to see with a microscope. Working with nanoparticles is called nanotechnology.