Functional large-conductance calcium and voltage-gated potassium channels in extracellular vesicles act as gatekeepers of structural and functional integrity Extracellular vesicles secreted by cells play a crucial role in cellular communication. Here, the authors identify a functional BK channel in extracell...
Nature 347, 354–358 (1990). Article Google Scholar Hebard, A. F. et al. Superconductivity at 18 K in potassium-doped C60. Nature 350, 600–601 (1991). Article CAS Google Scholar Campbell, E. K., Holz, M., Gerlich, D. & Maier, J. P. Laboratory confirmation of C60+ as ...
The method they used was that of Vinson and Petre, which consists essentially of the precipitation of the protein and other materials from the plant juice with basic lead acetate and the subsequent removal of the virus by elution with potassium-hydrogen phosphate solution. Barton-Wright found that...
(the science that deals with) the nature of substances and the ways in which they act on, or combine with, each other.Chemistry was his favourite subject;the chemistry of the blood.química ˈchemicaladjective of chemistry.a chemical reaction.químico ...
nature worship: Fire With the achievement of agriculture inNeolithictimes in theMiddle Eastabout 7000bce, there came a new urgency to clear brush and trees. The first agriculturists made use of fire to clear fields and to produce ash to serve as fertilizer. This practice, calledslash-and-burn...
deep as 300 nm, i.e. sodium, potassium, phosphorus and oxygen, however, there is no clear edge resolution presenting between the boundary film and an intermediate layer. We believe that, strong diffusion occurs at the interface, the principal iron phosphate intermediate with small amount of ...
Nature of the Pt chain distortion in the partially oxidized one-dimensional complex, K/sub 1/ /sub 75/Pt(CN)/sub 4/. 1. 5H/sub 2/O The oxidation of potassium tetracyanoplatinate(II) in the absence of halide ions results in the formation of bronze needles of K/sub 1.75/Pt(CN)/...
As the U.S. East Coast receives dust from many sources, presumably the chemical ratios of crustal elements in PM2.5will vary as there is evidence of different relative amounts of aluminum (Al), calcium (Ca), potassium (K), and iron (Fe) in soils originating in Africa versus Asia (e....
Iodine is never found in nature uncombined, and it is not concentrated sufficiently to form independent minerals. It is present inseawater, but sparingly, as the iodideion, I−, to the extent of approximately 50 mg per metric ton (0.0016 ounce per ton) of seawater. It is also formed in...
This process depends on the concentration and nature of the electrolyte solution that may cause changes in the swelling performance of clay. The charge transport process within the clay thin film could be improved by delamination. It will provide access to the channels and the process will ...