Hybrid materials (including nanoparticles) are always composed of inorganic and organic compounds, for example, Fe3O4 nanoparticles capped with organic acids (see article attached) .

Best regards,Bartek

Article Morphology and magnetic properties of Fe3O4-alginic acid nan...

Dear Sir Bartlomiej Andrzejewski,

I am working on the effect of nanoparticles on biogas production enhancement from anaerobic digestion . If i use mixture of nano ash and nano zero valent metal (Iron or any other) will it be called as hybrid nanoparticle? 

Thanks and Regards,

In 2007 - IUPAC defined hybrid materials

Pure Appl. Chem., Vol. 79, No. 10, pp. 1801–1829, 2007.

doi:10.1351/pac200779101801

© 2007 IUPAC

4.1.14 hybrid material

Material composed of an intimate mixture of inorganic components, organic components, or both types of component.

Note: The components usually interpenetrate on scales of less than 1 μm.

4.1.14.1 chemically bonded hybrid (material)

Hybrid material in which the different components are bonded to each other by covalent or partially covalent bonds.

4.1.14.2 clay hybrid

polymer-clay hybrid, polymer-clay composite

Organic–inorganic composite material in which one of the components is a clay, the particles of which are dispersed in a polymer.

4.1.14.3 hybrid polymer

Polymer or polymer network comprised of inorganic and organic components.

Note: Examples include inorganic–organic polymers and organic–inorganic polymers.

4.1.14.4 polymer-clay composite

See clay hybrid.

4.1.14.5 polymer-clay hybrid

See clay hybrid.