Metal-mediated rearrangements of 3-alkynyl flavone ethers are reported. The overall process involves 5-endo enyne cyclization to a platinum-containing spiro-oxocarbenium intermediate which may be trapped with methanol to produce spirodihydrofurans or further rearranged to afford either allenyl chromanediones or benzofuranones.
Plastic and reconstructive surgery, 131(6), 1253-1265 (2013-05-30)
Left untreated, paralytic lagophthalmos may result in corneal dryness, ulcerations, and subsequent blindness. The most common nondynamic surgical solution is upper eyelid weight placement in a superficial, pretarsal pocket, carrying the risk of visibility, extrusion, and entropion. The authors present
Nano-sized materials are widely used in consumer products, medical devices and engineered pharmaceuticals. Advances in nanotechnology have resulted in materials smaller than the nanoscale, but the biologic safety of the sub-nanosized materials has not been fully assessed. In this study
Journal of nanoscience and nanotechnology, 13(1), 306-314 (2013-05-08)
Multi-walled carbon nanotube grafted Pt nanoparticles via nitrogen atom (MWCNT-N-Pt) has chemically synthesized and characterized as an efficient oxygen reduction reaction (ORR) catalysts. Structural and morphological properties of the electrocatalyst have characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy
Biochimica et biophysica acta, 1830(6), 3787-3795 (2013-04-02)
Traditional antibacterial photocatalysts are primarily induced by ultraviolet light to elicit antibacterial reactive oxygen species. New generation visible-light responsive photocatalysts were discovered, offering greater opportunity to use photocatalysts as disinfectants in our living environment. Recently, we found that visible-light responsive