Fig. 1. SEM images of sandblast-treated wells. (a–d) Comparison of polystyrene surface post-abrasive treatment with the unmodified polystyrene surface. SEM analysis was carried out at 15.0 kV at 500 × magnification. (a). BSE-SEM and (b). SEI−SEM for wells post-abrasive treatment; (c). BSE-SEM and (d). SEI-SEM for unmodified wells. (e). SEM image of polystyrene post abrasive treatment at 2.0 kV and 1000× magnification.
