A NEW UNIVERSALLY APPLICABLE DETECTION SYSTEM BASED 0N ULTRA SMALL COLLOIDAL METAL PARTICLES

摘要

An aggregate for qualitatively or quantitatively determining bindable substances. Said aggregate comprises an ultra small colloidal particle and a specific binding agent characterized in that the mean diameter of the colloidal particle is below 2 nm. Preferably the size of the metal particle is selected so that the aggregate is capable of penetrating in standard biological specimens. A universally applicable detection system for determining bindable substances in particular in living material. Further there is provided a process for preparing said aggregate.