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.
Properties of Nanomaterials. One significant property that makes nanoparticles different from other materials is the fact that nanomaterials have a massive surface area. Because of their very high surface area, nanoparticles are extremely reactive compared to its larger form.here are two methods are used to produce nanomaterials. One is called the âtop down methodâ and the other is the âbottom up method.. In the first method very small components are produced using larger parts of the material.