In this proposal we request time to characterise some novel colloidal particles that cannot be characterised with other approaches. These are believed to be ‘raspberry’ particles which have a large central core with a layer of particles on the surface. Significantly these appear to have unexpected colloidal stability. In this proposal we aim to characterise the individual particles. This will be followed by a subsequent proposal to assess the inter-colloid interactions at higher number density. Due to the large size of the colloids these cannot readily be assess by conventional SANS alone and hence we propose to combine SANS with SESANS which can access the longer length scales required.