BACKGROUND Despite widespread clinical uses of resin-modified glass-ionomers (RMGIs), their sealing ability is still a concern. This study evaluated the effect of delayed light activation (DLA) of RMGI on marginal sealing in differently pretreated cavities. MATERIALS AND METHODS In this in vitro study, two standardized Class V cavities were prepared on the buccal and lingual surfaces of 56 so...

The control of electroosmotic flow by electronic means for capillary zone electrophoresis is presented. This is accomplished by the application of a radial voltage field with a rugged and flexible conductive polymer sheath. Fundamental theory for effect of the applied radial voltage on electroosmotic flow is developed. In addition, the effects of surface pretreatments are examined and compared ...

Herein, we propose a facile and efficient method to obtain the polystyrene/graphene nanosheets (PS/GNSs) nanocomposite particles. As far as we know, it is the first example that GNSs are attached onto the surface of PS microspheres, with such smooth morphology, and without relying on any surface pretreatments of substrate microspheres.

PURPOSE Glass transition temperature is a main indicator for amorphous polymers and biological macromolecules as materials, and would be a key for understanding the role of trehalose in protecting proteins and cells against desiccation. In this study, we measured the glass transition temperature by differential scanning calorimetry of dried lens tissues as a model of a whole biological tissue t...