Oxygen vacancy engineering of cerium oxide for the selective photocatalytic oxidation of aromatic pollutants.

The engineering of oxygen vacancies in CeO nanoparticles (NPs) allows the specific fine-tuning of their oxidation power, and this can be used to rationally control their activity and selectivity in the photocatalytic oxidation (PCO) of aromatic pollutants. In the current study, a facile strategy for generating exceptionally stable oxygen vacancies in CeO NPs through simple acid (CeO-A) or base (CeO-B) treatment was developed. The selective (or mild) PCO activities of CeO-A and CeO-B in the degradation of a variety of aromatic substrates in water were successfully demonstrated.

A Study on Possibility of Clinical Application for Color Measurements of Shade Guides Using an Intraoral Digital Scanner.

Purpose: To assess if color measurement with intraoral scanner correlates with digital colorimeter and to evaluate the possibility of application of a digital scanner for shade selection.

Materials And Methods: The L*a*b* values of the five shade tabs (A1, A2, A3, A3.5, and A4) were obtained with an intraoral scanner (TRIOS Pod) and a colorimeter (ShadeEye).

Characterizing the human equivalent dose of herbal medicines in animal toxicity studies.

Ethnopharmacological Relevance: Herbal medicines have been generally believed to be safe. With the increasing use of herbal medicine worldwide, however, the safety of traditional herbal drugs frequently becomes a medical issue.

Aim Of The Study: This study was aimed to characterize the safe dose of herbal medicines through the systematic review for "human equivalent dose (HED)" from animal-based toxicity studies.