Laser irradiation effects on the combination of levodopa and carbidopa in the presence and absence of magnetic field.

Laser irradiation effects on the combination of levodopa and carbidopa in the presence and absence of magnetic field were studied. The structural and surface morphology of irradiated targets were measured by X-ray diffractometer (XRD) and scanning electron microscopy (SEM), respectively. Energy dispersive X-ray spectrometry (EDS) was used for chemical analysis. XRD analysis indicates increase in grain size for 2 min laser irradiation in the absence of magnetic field, but for 4 and 6 min it revealed decrease in grain size. While grain size decreased at 2 and 4 min exposures in the presence of magnetic field but grain size slightly increased with the increase of exposure time up to 6 min. Micro-nano-sized structures (including hydrodynamic sputtering, splashing and crater) were observed by SEM analysis. EDS displayed peaks for carbon (C) and oxygen (O), but peaks for hydrogen (H) and nitrogen (N) are missing. The present study will provide basis for the use of low-cost and environment-friendly diode laser to enhance the characteristics of this combination (levodopa + carbidopa). [ABSTRACT FROM AUTHOR]