Francisco Javier Gonzalez is an Optical Engineering Staff member at Lockheed Martin MFC and holds a Courtesy Appointment as Full Professor at the Physics Department of the University of Central Florida. His areas of expertise are Infrared technology, nanophotonics and non-invasive medical diagnosis, areas in which he has contributed with more than 150 journal publications, which have been cited over 3500 times (h-index: 33). Dr. González has also published 2 Book Chapters, presented more than 100 papers at conferences and has 7 patents granted or pending. Dr. Gonzalez is Senior Member of IEEE, OSA and SPIE.
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Melasma is an abnormal acquired skin hyperpigmentation disorder, typically on the face, of unknown origin. It is considered a single disease and very little has been found regarding its pathogenesis. Hydroquinone, an aromatic organic molecule, has been considered as the gold standard substance for dermatological melasma treatment. This substance at high concentrations being absorbed by the skin may produce counterproductive disorders, such as blue or brownish-blue colored skin. In recent years, optical techniques based on the interaction of light with biological samples have become innovative methods for medical applications. We used Raman spectroscopy and surface-enhanced Raman spectroscopy (SERS), to evaluate hydroquinone cation radicals
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