Felicia S. Manciu is a professor in the Department of Physics at the University of Texas at El Paso. Her expertise is in nonlinear optical investigations of hard and soft condensed matter. Dr. Manciu’s research interests address emerging clean energy and biomedical technologies. Examples are studying doped diamond materials, carbon fibers, metal oxides, magnetic materials, and transition metal chalcogenide alloys; monitoring multiple neurotransmitters simultaneously by using label-free confocal Raman microscopy; assessing cancer-related signatures using combined Raman microscopy and multivariate statistical and machine learning algorithms; investigating prophylactic effects of natural and chemical plant extracts in traditional medicine; label-free detecting parasites and assessing their resistance to drugs; and analyzing new avenues for water decontamination. These research subjects aim to develop new, reliable nano- and micro-structures with applications in various fields, including electronics, photonics, and medical diagnostics.