RESUMEN
Lasers and photodynamic therapy have been considered a convergence treatment for onychomycosis, which is a fungal infection on the nail bed and nail plate. Laser therapies have shown satisfactory results without significant complications for onychomycosis; however, the mechanism of clearing remains unknown. In this work, we investigated changes in the chemical structure of nail keratin induced by Nd:YAG laser using Raman spectroscopy. Toe nails with onychomycosis were treated with 1064 nm Nd:YAG laser. After laser treatment, the disulfide band (490-590 cm-1 ) of nail keratin was rarely observed or was reduced in intensity. The amide I band (1500-1700 cm-1 ) also showed changes induced by the laser. The α-helical (1652 cm-1 ) structures dominated the ß-sheet (1673 cm-1 ) in nontreated nail, but the opposite phenomenon was observed after laser treatment.
Asunto(s)
Queratinas/química , Terapia por Láser/métodos , Láseres de Estado Sólido/uso terapéutico , Onicomicosis/terapia , Desnaturalización Proteica/efectos de la radiación , Disulfuros/química , Femenino , Humanos , Masculino , Persona de Mediana Edad , Uñas/microbiología , Onicomicosis/microbiología , Estructura Secundaria de Proteína/efectos de la radiación , Espectrometría Raman , Resultado del TratamientoRESUMEN
We demonstrate the fabrication of an all-carbon electrode by plasma-enhanced chemical vapor deposition for use in flexible electrochemical applications. The electrode is composed of vertically aligned carbon nanotubes that are grown directly on a flexible graphite foil. Being all-carbon, the simple fabrication process and the excellent electrochemical characteristics present an approach through which high-performance, highly-stable and cost-effective electrochemical applications can be achieved.
RESUMEN
A simple method is proposed for growing vertically aligned carbon nanotubes on metal foil using the triode direct current plasma-enhanced chemical vapor deposition (PECVD). The carbon nanotube (CNT) electron emitter was fabricated using fewer process steps with an acid treated metal substrate. The CNT emitter was used for X-ray generation, and the X-ray image of mouse's joint was obtained with an anode current of 0.5 mA at an anode bias of 60 kV. The simple fabrication of a well-aligned CNT with a protection layer on metal foil, and its X-ray application, were studied.
