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1 ransport the soluble precursor of biosilica, silicic acid.
2 DEAE-cellulose, C18 reverse phase resin, and silicic acid.
3 of their molecular structures in stabilizing silicic acids.
4 ial in Sargasso Sea sediments indicates that silicic acid, a limiting nutrient today, may have been m
5 rned holographic structures are exposed to a silicic acid, an ordered array of silica nanospheres is
6 veal strong binding between the deprotonated silicic acid and a polymer when the amine groups in the
7 molecular interactions between oversaturated silicic acid and functionalized surfaces, highlighting t
8 scale layer was formed via polymerization of silicic acid and gelation of silica particles, which wer
9 ty over large areas of the EEP is limited by silicic acid and iron availability, and because of this
10 , where diatom growth may be limited by both silicic acid and iron.
11 , often failed to recognize the chemistry of silicic acid and its analogues.
12 we make use of the combined distributions of silicic acid and nitrate to trace the main nutrient retu
13 significant and positive correlation between silicic acid and pCO(2) in the surface waters, but no si
14 ons, Ca(2)SiO(4) is converted to CaCO(3) and silicic acid, and MgO is partially converted into a Mg c
15 teins that bind to a soluble form of silica, silicic acid, and transport it across the cell membrane
16 ns above and below the "mononuclear wall" of silicic acid at 2 x 10(-3) M (where silicic acid is expe
17 silica-rich colloids in solutions containing silicic acid at concentrations of both the regions above
18 silica scaling through the polymerization of silicic acid at supersaturation have been predominantly
19 rst step in Si accumulation is the uptake of silicic acid by the roots, a process mediated by the str
20 tantial increase in the condensation rate of silicic acids by guiding them to form a silicate trimer
21 NO2 that was purified by solvent extraction, silicic acid chromatography, and reverse-phase HPLC.
22 able and eluted with acetone and methanol in silicic acid chromatography, consistent with being a pol
23          Following chloroform extraction and silicic acid chromatography, CPS-500 was isolated by hig
24 s minimized, the hydrophilic and nonvolatile silicic acid components replace water maintaining a flui
25 ctic & Subarctic Provinces (AASP) have lower silicic acid concentrations than nitrate, which suggests
26 th fast dissolving NPs, indicating effective silicic acid delivery.
27                                    Dissolved silicic acid (dSi) availability frequently limits diatom
28 ty, and the unique molecular recognition for silicic acid, followed by the micelle coalescence.
29          SG specimens were immersed twice in silicic acid for 20 min and dried (100 degrees C, 1 h).
30 se photosynthetic protists take up dissolved silicic acid from the water and precipitate opaline sili
31  an 800 microM solution of 96% 29Si-enriched silicic acid, H4SiO4 (pH approximately 8), with a signal
32 "soil solution," contains silicon, mainly as silicic acid, H4SiO4, at 0.1-0.6 mM--concentrations on t
33 xes was achieved using a rapid and sensitive silicic acid HPLC method combined with digital analysis
34 ntiscalants facilitate the polymerization of silicic acid, immobilizing active silica precursors and
35 0% of silicon content, releasing lithium and silicic acid in a tailorable fashion from days to weeks.
36  with high silicic acid in the south and low silicic acid in the north, where diatom growth may be li
37 rentially expressed between waters with high silicic acid in the south and low silicic acid in the no
38 pid opening of the channel and visualise how silicic acid interacts with the selectivity filter prior
39 wall" of silicic acid at 2 x 10(-3) M (where silicic acid is expected to start polymerization).
40  which involves the condensation reaction of silicic acid, is a fundamental process with wide-ranging
41  Here we test a facet of the hypothesis that silicic acid limitation terminates the spring diatom blo
42 p) of 1.7 +/- 1.0 mM, suggesting a transport silicic acid:Na(+) stoichiometry of 2:1.
43  protein: substrate stoichiometry and KM for silicic acid of 20 muM.
44 , resulting in enhanced binding with ionized silicic acid precursors compared to monomers.
45 ion, occurs by condensation of water-soluble silicic acid proximally to biomolecular interfaces throu
46 ated with a superior competitive ability for silicic acid relative to other siliceous plankton such a
47 eneration, as they stimulate bone repair via silicic acid release while providing regenerative stimul
48        Porous silicon can provide controlled silicic acid release, inducing osteogenesis to support b
49                      Calcium ions react with silicic acid released from dissolving porous silicon nan
50  reactants, an aluminium hydroxide dimer and silicic acid, second, the reaction products, two distinc
51 al controls on the biogeochemical cycling of silicic acid [Si(OH)4] on the west Antarctica Peninsula
52 asic silicic acid to form soluble 2/1 (sugar/silicic acid) silicate complexes.
53  promotes the precipitation of silica from a silicic acid solution within minutes.
54 erent water depths to demonstrate changes in silicic acid supply and utilization during the most rece
55 s models that explicitly consider changes in silicic acid supply as a driver of this process.
56 By 17 ka, stratification reduced the surface silicic acid supply leading to increased Si utilization
57      We show that recombinant SITs are Na(+)/silicic acid symporters with a 1:1 protein: substrate st
58                         Upon the addition of silicic acid the microrings become rapidly mineralized i
59              Upon contact with oversaturated silicic acid, the rate of silica polymerization on amine
60 efits to many plant species when absorbed as silicic acid through nodulin 26-like intrinsic proteins
61      Certain sugars react readily with basic silicic acid to form soluble 2/1 (sugar/silicic acid) si
62 he precise control of the hydrolysis form of silicic acid to realize stabilization of RBC within conf
63 n which diatoms and radiolarians compete for silicic acid to show that the observed reduction in the
64 n, we calculate changes in the input flux of silicic acid to the oceans.
65 .5-18 ka), wind-driven upwelling replenished silicic acid to the subsurface, resulting in low Si util
66 , diatoms bloomed and progressively consumed silicic acid to where it limited their growth.
67                We identified novel genes for silicic acid transport and formation of silica-based cel
68                                              Silicic acid transport could be established in reconstit
69 sativa) takes up arsenite mainly through the silicic acid transport pathway.
70              However, the molecular basis of silicic acid transport remains obscure.
71  we identify experimentally tractable diatom silicic acid transporter (SIT) homologues and study thei
72    Because all glycosides fail to react with silicic acid under these conditions, reaction appears to
73                                          The silicic acid uptake kinetics of diatoms were studied to
74  regions with high and low concentrations of silicic acid, were performed in the Southern Ocean.
75 yions composed of simple or complex salts of silicic acids with a heterogeneous charge distribution a
76 chanistic insights into the stabilization of silicic acids with functional polymers, highlighting the