Optical Diffraction Studies of Muscle Fibers

Light Diffraction by Single Striated Muscle Fibers

Optical diffraction studies of myofibrillar structure.

We have used the techniques of optical diffraction and optical filtering to study electron micro­ graphs of myofibrils and of paracrystals of myofibrillar proteins. The optical diffraction patterns provide information about periodic structure in the micrographs, and sometimes may reveal periodicities not apparent to the eye. We compare the optical diffraction patterns with the X-ray diffraction...

Optical diffraction of the Z lattice in canine cardiac muscle

Optical diffraction patterns from electron micrographs of both longitudinal and cross sections of normal and anomalous canine cardiac Z bands have been compared. The data indicate that anomalous cardiac Z bands resembling nemaline rods are structurally related to Z bands in showing a repeating lattice common to both. In thin sections transverse to the myofibril axis, both electron micrographs a...

Optical Diffraction Studies of Crystalline Structures in Electron Micrographs

Determination of the unit cell of crystalline particles by optical diffraction analysis of electron micrographs may establish the identity and help in approximating the molecular weight of the substances contained in the crystal. This technique may be particularly helpful when isolation and purification of the crystalline material cannot be accomplished.

X-ray diffraction studies of muscle and the crossbridge cycle.

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