Clean Ar-Me conversion to Ar-aldehyde with the aid of carefully designed metallocorrole photocatalysts.

Toluene, p-xylene and mesitylene were cleanly converted to their corresponding monoaldehydes via mild photooxygenation utilizing transition metal and main group β-CF-substituted corroles. Aldehyde yield increased as more electron-donating CH groups are present on the substrate. 4-P was most efficient (TON ∼ 1072, mesitylene) via the singlet oxygen vis the superoxide mechanism.

Density and Morphology of Corneal Epithelial Dendritic Cells are Different in Allergy.

: The role of corneal epithelial dendritic cells (CEDC), a subtype of antigen presenting cells, in ocular allergy remains largely unknown. This cross-sectional study evaluated the density and morphology of CEDC in participants diagnosed with systemic allergy, to increase our understanding of the role of CEDC in ocular inflammation associated with systemic allergy.: A convenience sample of 50 participants was categorised into allergic and non-allergic groups (31 allergic and 19 non-allergic) based on the results of skin prick test (SPT).

Contact lens wear and dry eyes: challenges and solutions.

The number of contact lens wearers worldwide has remained relatively stable over the past decade, despite the investment that has gone into contact lens technology. This is largely because 10%-50% of wearers dropout of contact lens wear within 3 years of commencement; the most common reason cited being contact lens discomfort (CLD). Of the symptoms reported, sensation of dry eye is the most common.

Effect of different final irrigating solutions on smear layer removal in apical third of root canal: A scanning electron microscope study.

Aim: The aim of this in vitro study is to compare the smear layer removal efficacy of different irrigating solutions at the apical third of the root canal.

Materials And Methods: Forty human single-rooted mandibular premolar teeth were taken and decoronated to standardize the canal length to 14 mm. They were prepared by ProTaper rotary system to an apical preparation of file size F3.

Evaluation of Correlation Between apical Diameter and File Size Using Propex Pixi Apex Locator.

Aim: AIM of this study is to evaluate the influence of critical diameter of apical foramen and file size using propex pixi apex locator in working length determination.

Materials And Methods: In this study, ten single rooted teeth were selected. They were decoronated at cemento enamel junction.