Dr. Hollaender was a director at Oak Ridge from 1946 to 1966, when he became a senior research adviser. In 1973 he moved his office to Washington, and he established the Council for Research Planning in Biological Sciences in 1981. He was its president at the time of his death.
He did pioneering experimental research in radiation biology, resulting in our general concepts of damage to nucleic acids and the recovery from radiation damage. He was given the Department of Energy's Enrico Fermi Award in 1983.
Dr. Hollaender, a radiation biologist who was a former director of the biology division of the Oak Ridge National Laboratory, Tenn., died of a pulmonary embolism in 1986 at the Georgetown University Hospital in Washington. He was 87 years old and lived in Washington.