A hair styling device is disclosed that allows women andor men to straighten wavy or curly hair without having to run a flatiron through each section and without having to apply a chemical straightening treatment. The chemopreventive agent prevents, prevents recurrence of, suppresses or inhibit prostate carcinogenesis; and treats prostate cancer. A gate is deposited above the silicon layer. Interconnect recesses accessible on the opposite second surface expose one or more conductive traces. The silicon-containing film allows an overlying photoresist film to be patterned effectively.