is modeled after naturally existing viruses configurable microscopic medical payload delivery devices in general are spherical in shape though other shapes may be used as function might warrant the use of a particular shape the spherical configurable microscopic medical payload delivery devices are comprised of an exterior envelope and one or more nested inner protein shells a quantity of exterior protein structure probes and or glycoprotein probes are anchored in the exterior envelope and a portion extends out and away from the exterior envelope nesting of protein shells refers to progressively smaller diameter shells fitting snugly inside protein shells of a larger diameter inside the innermost protein shell referred to as the nucleocapsid is a cavity referred to as the core of the device the core of the device is the space where the medically therapeutic payload the device carries is located the payload of the device is comprised of ribonucleic acid molecules configurable microscopic medical payload delivery devices cmmpdd target specific types of cells in the body configurable microscopic medical payload delivery devices engage specific types of cells by the configuration of probes affixed to the exterior envelope of the cmmpdd by fixing specific probes to the exterior envelope of the cmmpdd these probes intended to engage and attach only to specific cell surface receptors located on certain cell types.