Molecular biophysics is a branch of biophysics that focuses on the study of biological molecular structures and their interactions at the molecular level. This field combines principles of physics, chemistry, and biology to understand the physical properties of molecules that are essential for life processes. Researchers in molecular biophysics use techniques such as X-ray crystallography, nuclear magnetic resonance spectroscopy, and molecular modeling to study the structure and function of biomolecules such as proteins, nucleic acids, and lipids. This research area plays a crucial role in advancing our understanding of complex biological systems and developing new strategies for drug design and therapeutics.