Since its introduction in 1971, the development and application of colloidal gold as a marker in electron microscopy has been phenomenal. Colloidal gold has become the method of choice in immunocytochemistry and many areas of cell biology. This universal method is applicable to most microscopical systems including optical microscopy; scanning, transmission, and high voltage electron microscopy; photoelectron, photon, fluorescent darkfield, and epipolarization microscopy. Colloidal gold allows high and low resolution studies, enzyme and nucleic acid labeling, study of dynamic cellular processes, and virus detection. This book is among the first available to cover the principles and methodology of colloidal gold in microscopy. Key Features * Methods are described step by step, to enable researchers to learn these complex procedures solely by reference to these books * Problems and limitations of techniques are discussed * Guides users to avoid problems and choose the correct procedures for specific applications * Contributors are eminent authorities in their fields.