[TERM REQUEST] CeO2/Co3O4 nanoparticle

[egonw]

What would you use as label or labels for the terms?
Annotate a dataset: https://zenodo.org/records/7989699

Quote:

CeO2/Co3O4 nanoparticles were provided by Promethean Particles (EMR identifier in the project: ERM00000397).

What is the definition of the term?
Not sure.

Is there an ontology that has this term?
ENM and NPO both don't seem to have it.

[jmillanacosta]

Synonyms (from its safety sheet "CeO2 Co3O4 -SDS.pdf"):

• CeO2/Co3O4 nanoparticle
• Cerium(IV)/Cobalt(II,III)
• Tricobalt tetraoxide/cerium dioxide/ceria

Definition from its safety data sheet:

Cerium(IV)/Cobalt(II,III) mixture of oxide nanoparticles (in aqueous dispersion)

We have no clear way of modelling mixtures in the eNanoMapper. There is a mixture class (http://purl.obolibrary.org/obo/CHEBI_60004), a cerium oxide nanoparticle class (http://purl.enanomapper.org/onto/ENM_9000006), and a cobalt oxide nanoparticle class (http://purl.enanomapper.org/onto/ENM_0000119).

Possible solutions:

• A: CeO2/Co3O4 nanoparticle: subClassOf(mixture), subClassOf(CeO2 nanoparticle), subClassOf(Co3O4 nanoparticle). Simply state that it is a kind of all three, simple solution.
• B: CeO2/Co3O4 nanoparticle: subClassOf(mixture), sameAs (has_part some CeO2 nanoparticle, has_part some Co3O4 nanoparticle), more expressive but also more complicated than the rest of similar classes in eNMO.

If we think of an approach like B it would be more in line with the plans to make the ontology more expressive.

@egonw thoughts? Maybe we can use A for now, but ideally move to B as we start defining the architectural ontology design patterns for all types of nanoparticles, nanoparticle mixtures, nanocomposites, nanomaterials, nanoobjects; if that's something we want to (or can) do.

[egonw]

Nice discussion for Feb 8!

[github-actions]

Available IRI: http://purl.enanomapper.net/onto/ENM_9116388