When choosing different sunscreen products, consumers take many factors into consideration, including SPF values, broad spectrum claims, UVA-PF value or PA+ rating, and the type of filters used: organic versus inorganic. Organic UV filters are a group of carbon-containing compounds designed to abso...
Centrosymmetric Versus Noncentrosymmetric: Structural and Optical Studies on Inorganic‐Organic Hybrid Compounds of Bismuth Thiourea Iodide Resulting from Acid Effectacid effectscoordination chemistrycrystal structureinorganic-organic hybrid compoundshydrogen bondsA series of crystals of bismuth thiourea iodide (Bi...
c Work of deformation (WS), as derived from the integral of FL across 80 µm, neglecting the first and last 10 µm of each scratch, versus the corresponding scratch volume (VS) of the investigated glass samples. The scratch hardness (HS) is defined as the slope of the linear ...
Keywords: pharmaceuticals; photocatalysis; cations and anions; organic compounds; toxicological assessment 1. Introduction Pharmaceutical compounds constitute one of the largest groups among organic micropollutants that are present in the aquatic environment [1]. Municipal effluents into which these compounds ...
So, one must keep in mind not only the physical and chemical advantages of such compounds, but also any ancillary risks that they may introduce. This is a classic case of competition among values (i.e, easier and more effective cleanup versus additive health risks from the cleanup chemical)...
The logarithmic scale of τC represented by blue circles versus 1000/T is shown in Figs. 8 and 9 to determine the molecular dynamics of the crystal. In phase II, the activation barriers are 19.38 ± 1.70 kJ/mol (1H) and 23.88 ± 4.48 kJ/mol (13C), and their values ...
organic compounds such asmelamine,cyanamide, dicyandiamide, urea, andthiourea[113] (Fig. 1.15). The bandgaps of g-C3N4are usually within 2.5–2.9eVwithVBandCBpotentials at ca. −1.1 and +1.6V (versus NHE), respectively, the values of which are dependent on raw materials and synthetic ...
Cyclometallated compounds XIV. Kinetic versus thermodynamic control in the reversible cyclopalladation of 2-(2-naphthyloxy) pyridine O'Keefe, BJ;Steel, PJ 10-13 Ferromagnetic coupling through a carbonate bridge in the copper(II) chain [Cu(CO3) (4-apy)2]•H2O (4-apy = 4-aminopyridine...
Mechanical and thermal properties of polyamide versus reinforced PMMA denture base materials. J Adv Prosthodont. 2013;5(2):153–60. Article PubMed PubMed Central Google Scholar Shuai C, Feng P, Yang B, Cao Y, Min A, Peng S. Effect of nano-zirconia on the mechanical and biological ...
et al. Excitons versus free charges in organo-lead tri-halide perovskites. Nat. Commun. 5, 3586 (2014). Article CAS Google Scholar Tanaka, K. et al. Comparative study on the excitons in lead-halide-based perovskite-type crystals CH3NH3PbBr3CH3NH3PbI3 . Solid State Commun. 127, 619–...