There are provided a sensor for analysis that can easily and sensitively perform analysis and inspection, a substrate for producing a sensor for analysis, a particle used for producing the substrate, and related technologies. The present disclosure provides a particle including a particle core and a modifier integrated with the particle core by an intermolecular chemical bonding that is separable under conditions that do not damage the particle core, or a particle for producing a substrate for producing a sensor for analysis, in which the particle includes a particle core and a modifier integrated with the core by an intermolecular chemical bonding that is separable under conditions that do not damage the substrate.