the compound we call water is created by combining the elements hydrogen and oxygen. One molecule of water is always made up of two hydrogen atoms and one oxygen atom. This is why water is referred to as H₂O in science. Water is created when elements chemically...
although it was considered by some to be acompoundofhydrogenand oxygen; its elemental nature was established by the French chemistsJoseph Gay-LussacandLouis Thenard. Natural occurrence and distribution pyritePyrite. Many importantmetalores are compounds of sulfur, eithersulfidesorsulfates. Some important...
binaphthyl structure, capable of arranging a guest compound almost or entirely without reworking the guest compound, to provide a molecule-joining element comprising the compound, and to provide a host-guest mixture and a supramolecular chain structure, as the utilization of the molecule-joining ...
the cells removed 53.37% of the dissolved Gd within 72 h of exposure. An impact of REE on cell growth was also reported forT. shanghaiensis. Low concentrations (0.125–0.25 mM) of the rare earth metals lanthanum, samarium and yttrium stimulated cell population...
The other inserted into the xenotropic and polytropic retrovirus receptor 1 (XPR1) gene, which is known to be a phosphate exporter molecule72. We confirmed that these two Alu insertions into the SIRPB1 and XPR1 genes are polymorphic on our panel of five human populations, including 38 Korean...
63. Our results suggest an uptake of Gd via phagocytosis either associated with organic medium compounds of proteose peptone or in the form of free ions. There are several suggested roles for the organic compound proteose peptone in this process: Besides providing essential nutrients, organic media...
[5]and a proper functioning of the biosensors requires the presence of an intermediary compound, a so-called mediator, which shuttles redox equivalents between the recognition element and transducer. This supplementary step in the biosensing chain usually results in the increase of the biosensor’s...
molecule that is formed due to oxidative stress within cells as a result of the reaction between superoxide ions with nitric oxide molecules at sites of inflammation [17,18,19]. The assumption that SelP is secreted into the bloodstream, as well as several SeCys sequences that are found in ...
tetrahedral Ga4P10 shell encloses a gallium‐rich core with a distorted tetrahedral Ga4 center in the neutral metalloid cluster compound [Ga16(PtBu2)10]... Jochen,Steiner,Gregor,... - 《Angewandte Chemie International Edition》 被引量: 20发表: 2002年 加载更多来源...
81,82 The molecular structure of PCA indicates that it possesses potent antioxidant and anti-radical activities79 due to the position and number of phenolic hydroxyl groups present in the PCA molecule. However, PCA esters have higher antioxidant activity than PCA likely because of the higher ...