The RDF has been made publicly available through a SPARQL endpoint and a corresponding SNORQL User Interface to facilitate the exploration of the data with SPARQL queries (nanosafety.rdf.bigcat-bioinformatics.org/). This allows us to perform federated SPARQL queries, expanding the developed RDF with information from other sources. Federated SPARQL queries can be used e.g. to explore the downstream effects of the proposed MIEs in more detail or group nanomaterials based on their ontological annotations.