From Bioinformatics.Org Wiki
Molecular biology itself grew out of biophysics. The British Biophysical Society defines biophysics as:
"an interdisciplinary field which applies techniques from the physical sciences to understanding biological structure and function"More information about the various facets of the discipline can be found at the society's site hosted at Birkbeck College, London.
Mike Goodrich wrote to ask what the status of biophysics was given the definition of computational biology submitted by Paul Schulte (below). A recent article in The Scientist [free registration required] dealt with this question---thanks to Jo Wixon (Managing Editor of Comparative and Functional Genomics) for the reference.