ライフサイエンスコーパス: montmorillonite

1 and two common clay minerals (kaolinite and montmorillonite).

2 or trans-sites by Fe(2+) and Fe(3+) in bulk montmorillonite.

3 monomers in 1 day in reactions catalyzed by montmorillonite.

4 , intermediate between that of kaolinite and montmorillonite.

5 ylenediamine within the interlayer of sodium montmorillonite.

6 accelerated 35 times in the presence of the montmorillonite.

7 at room temperature in the presence of Na(+)-montmorillonite.

8 larger than those measured in the absence of montmorillonite.

9 tetramer in length, are formed using UO2(2+)-montmorillonite.

10 served between the iron-rich nontronites and montmorillonite.

11 utive usages of the same of Fe(3+)-saturated montmorillonite.

12 nsformation when exposed to Fe(3+)-saturated montmorillonite.

13 Phenanthrene hardly degraded on Cu-montmorillonite.

14 oionic forms of the aluminosilicate mineral, montmorillonite.

15 n biomolecules were adsorbed at the edges of montmorillonite.

16 ontmorillonites as compared to the catalytic montmorillonites.

17 developing Fe(II) sorption models on natural montmorillonites.

18 ate the uptake of Zn on the edge surfaces of montmorillonite, a dioctahedral clay, and to explain the

19 Here we report that montmorillonite accelerates the spontaneous conversion o

20 Because binding to montmorillonite (an aluminosilicate clay mineral) or cla

21 ison between rates of adsorption of Pu(V) to montmorillonite and a range of other minerals (hematite,

22 biotically reduced clay minerals: an Fe-poor montmorillonite and an Fe-rich nontronite.

23 anoclays (bentonite, octadecylamine-modified montmorillonite and halloysite) were studied as potentia

24 of organic sorbates in interlayers of sodium montmorillonite and hexadecyltrimethylammonium (HDTMA(+)

25 three main types of natural clay: kaolinite, montmorillonite and illite, all of which are aluminosili

26 citrate along with Mn(II) and clay minerals (montmorillonite and kaolinite) reduce Cr(VI) both in aqu

27 and low organic matter contents, abundant in montmorillonite and other expanding clay minerals.

28 the activated nucleotides in the presence of montmorillonite and other salts, alkali metal fluorides

29 radient measures from relevant samples of Ca-montmorillonite and silicalite, respectively.

30 The binding of ImpA to montmorillonite and the formation of higher oligonucleot

31 lied to simulate the incorporated Fe in bulk montmorillonite and to explain the measured Fe K-edge X-

32 m(VI) interactions with three smectites (one montmorillonite and two nontronites - NAu1 and NAu2) wer

33 turally complex organic cations to homoionic montmorillonites and to heteroionic soils (mean absolute

34 s overlain by rocks rich in hydrated silica, montmorillonite, and kaolinite that may have formed via

35 ct the stability of Pu adsorbed to goethite, montmorillonite, and quartz across a wide range of pH va

36 tives of 5'-phosphoramidates of adenosine on montmorillonite are investigated.

37 The electron acceptor sites on the montmorillonite are postulated to be the structural Fe(I

38 When cations in raw montmorillonites are replaced by sodium ions, the result

39 nd nature of interaction of vitamin B12 onto montmorillonite as a carrier.

40 ium hydroxide needed to titrate noncatalytic montmorillonites as compared to the catalytic montmorill

41 re intercalated into the interlayer space of montmorillonites as deduced from the increase of the bas

42 er films onto external surfaces of Cs and Na montmorillonites as function of partial water pressure.

43 Experiments with both quartz and montmorillonite at 5 muM H2O2 desorbed far less Pu than

44 The spillover of the montmorillonite basal plane electric double layer to the

45 Bacteria rarely formed aggregates with montmorillonite, but were more tightly adsorbed onto goe

46 tion with migration of interlayer cations of montmorillonite (Ca(2+)and Na(+)) to the edges a cationi

47 that under dry conditions in the presence of montmorillonite, catalysis occurs with respect to genera

48 This research establishes that the montmorillonite catalyst limits the number of RNA oligom

49 y, the reaction kinetics of Fe(3+)-saturated montmorillonite catalyzed 17beta-estradiol (betaE2) tran

50 ng the sequence- and regioselectivity in the montmorillonite-catalyzed formation of RNA dimers and tr

51 ucture of phosphate-activating groups on the montmorillonite-catalyzed oligomerization of the 5'-phos

52 The effects of amine structure on the montmorillonite-catalyzed oligomerization of the 5'-phos

53 The montmorillonite-catalyzed reactions of the 5'-phosphorim

54 The montmorillonite-catalyzed reactions of the 5'-phosphorim

55 - and regioselectivity of the RNAs formed in montmorillonite-catalyzed reactions.

56 oligomerization process indicating that the montmorillonite-catalyzed RNA synthesis is not affected

57 CWD-positive brain homogenate was mixed with montmorillonite clay (Mte), lyophilized, pulverized and

58 CWD endemic areas in Colorado; and purified montmorillonite clay (Mte), previously shown to bind pri

59 Supported on montmorillonite clay and using Ce(IV) as a chemical oxid

60 f supercritical (sc) CO(2) with Na saturated montmorillonite clay containing a subsingle layer of wat

61 c films, ammonium chloride salt crystals and Montmorillonite clay, previously proposed to promote pol

62 eterogeneous oligocytidylates, formed by the montmorillonite clay-catalysed condensation of actuated

63 The montmorillonite clay-catalyzed reactions of nucleotides

64 of the 5'-phosphorimidazolide of cytidine on montmorillonite clay.

65 t, enables the discrimination of illite from montmorillonite clays that typically develop in large de

66 xadecyltrimethylammonium (HDTMA(+))-modified montmorillonite clays.

67 Aging of both K- and Ca-exchanged montmorillonite complexes at elevated CO(2) pressure for

68 ignificantly between the K- and Ca-exchanged montmorillonite complexes.

69 thymol, as the active additive, and modified montmorillonite (D43B) at two different concentrations.

70 replaced by sodium ions, the resulting Na(+)-montmorillonite does not catalyze oligomer formation bec

71 electrostatic attraction between Ag and the montmorillonite edge at low ionic strength, whereas a re

72 ite basal plane electric double layer to the montmorillonite edge may screen the electrostatic attrac

73 At pH values below the IEP of montmorillonite edge site, montmorillonite reduced the s

74 The exchangeable cation associated with the montmorillonite effects the observed catalysis with Li+,

75 Sorption of pyrene on Cu-montmorillonite enhanced its degradation, but grinding o

76 ngth, whereas a repulsion between TiO(2) and montmorillonite face sites may restabilize the mixture.

77 a 10-mer), the presence of mineral surfaces (montmorillonite for nucleotides, illite and hydroxylapat

78 adsorption properties of biomolecules to the montmorillonite for preparation of nano-engineered nano/

79 y clearly demonstrated that Fe(3+)-saturated montmorillonite has a great potential to be used as a co

80 Since at low pH montmorillonite has a negatively charged basal plane and

81 It was noted that noncatalytic montmorillonites have a higher negative charge on their

82 herms were measured on a synthetic iron-free montmorillonite (IFM) under anoxic conditions (O2 <0.1 p

83 ormation in the presence of Fe(3+)-saturated montmorillonite in an aqueous system was detected.

84 CO2 (10(-6)-10(-7) cm(2)/s) indicate that Ca-montmorillonites in approximately 1W hydration states ca

85 ed in the presence of Na(+)-volclay (a Na(+)-montmorillonite) in pH 8 aqueous solution at 25 degrees

86 Of the 22 montmorillonites investigated, 12 were catalysts.

87 ous research has shown that Fe(3+)-saturated montmorillonite is effective in quickly transforming phe

88 The clay montmorillonite is known to catalyze the polymerization

89 nd simulation results suggested that iron in montmorillonite is preferentially incorporated as Fe(3+)

90 I)/(III) content, indicates that ferruginous montmorillonite is the dominant mineralogical component.

91 Fe in the synthetic montmorillonites is principally present as structural Fe

92 The radiolysis of water confined in montmorillonites is studied as a function of the composi

93 u among ferrihydrite, leaf compost (LC), and montmorillonite (K-SWy2) were established using compartm

94 e presence of iron powder as a reductant and montmorillonite K10 as a catalyst in aqueous citric acid

95 ust, scalable, and highly diastereoselective montmorillonite K10-promoted allylation reaction between

96 stituted pyrroles using iodine-catalyzed and montmorillonite KSF-clay-induced modified Paal-Knorr met

97 the magnitude of the negative charge on the montmorillonite lattice and the number of cations associ

98 he tetravalent and trivalent elements in the montmorillonite lattice with trivalent and divalent meta

99 B12 molecules gradually diffused in between montmorillonite layers.

100 g/L smectite suspensions were investigated-a montmorillonite (MAu-1) and two nontronites (NAu-1 and N

101 to produce films with different contents of montmorillonite (MMT) as a nanoreinforcement material.

102 Pyrene removal by polycation-montmorillonite (MMT) composites and granulated activate

103 poly vinylpyridinium-co-styrene (QPVPcS) to montmorillonite (MMT) was designed for the removal of th

104 full factorial design with varying levels of montmorillonite (MMTNa) and encapsulated tocopherol (toc

105 clarified acerola juice (CAJ) as affected by montmorillonite (Mnt) at different concentrations (0-6wt

106 stigate the binding characteristics of Cd on montmorillonite(Mont)-humic acid(HA)-bacteria composites

107 echanism of Fe(II) on an iron-free synthetic montmorillonite (Na-IFM).

108 glycine (Gly-zw) onto the surface of sodium montmorillonite (Na-MMT).

109 Layer-by-layer assembled 2D montmorillonite nanosheets are shown to be high-performa

110 Release assessment of organo-modified montmorillonite (O-MMT) nanoclay and the organo-modifier

111 rene occurred when it was in contact with Na-montmorillonite or birnessite.

112 Whereas montmorillonite (pH 7) produced only dimers and traces o

113 icient sodium ions to the interlayers of the montmorillonite platelets to prevent the activated monom

114 below the IEP of montmorillonite edge site, montmorillonite reduced the stability of both negatively

115 loadings comparable to the experiments with montmorillonite, revealed no significant cooperative int

116 The Ca-exchanged montmorillonite samples continued to expand over periods

117 Expansion of K-exchanged montmorillonite samples was rapid, occurring on time sca

118 Magnetite, birnessite, and Na- and Cu-montmorillonite samples were loaded with pyrene or phena

119 .3 nm, then a total energy transfer from the montmorillonite sheets to the interlayer space occurs, a

120 rmed with colloids (clays: kaolinite KGa-1b, montmorillonite STx-1b).

121 e been measured on low structural Fe-content montmorillonite (STx) and high structural Fe-content mon

122 nder anoxic conditions on natural Fe-bearing montmorillonites (STx, SWy, and SWa) having different st

123 ated when enough interaction existed between montmorillonite surface charges and vitamin biomolecules

124 ater potential for cation-pi interactions on montmorillonite surfaces.

125 y diffraction shows that K- and Ca-exchanged montmorillonites swell upon interacting with CO(2) at am

126 In contrast, Ca-exchanged montmorillonite swells more slowly, but reaches a maximu

127 K-exchanged montmorillonite swells rapidly to a maximum d(001) of ap

128 , we found that the Fe-bearing clay minerals montmorillonite SWy-2 and nontronite NAu-2 enhanced nitr

129 ts by bioreduced iron-bearing clay minerals (montmorillonite SWy-2 and nontronite NAu-2).

130 llonite (STx) and high structural Fe-content montmorillonite (SWy) under anoxic (O2 < 0.1 ppm) and st

131 of magnitude on the unreduced, Fe(III)-rich montmorillonites (SWy and SWa).

132 Reference experiments with Fe-free synthetic montmorillonite SYn-1 provided supporting evidence for t

133 iron oxide, hematite, iron-coated sand, and montmorillonite that were pre-equilibrated with 0.05-1.5

134 on of a (22)Na(+) tracer in compacted sodium montmorillonite, that is, transport directed from a low

135 the interlayer surfaces of Fe(3+)-saturated montmorillonite, the major reason for the observed >84%

136 died as a function of the composition of the montmorillonite, the nature of the exchangeable cation,

137 The protonated montmorillonite, titrated to pH 6-7, serves as a catalys

138 t produced nanoparticles, Ag and TiO(2), and montmorillonite to determine how heteroaggregation can a

139 The catalytic ability of montmorillonite to form dinucleotides and oligonucleotid

140 sphate (5'-AMP or pA) in the presence of the montmorillonite to form NH2pA3'pA, A5'ppA3'pA, and pA3'p

141 of the exposure of variably hydrated Ca-rich montmorillonites to supercritical CO2 and CO2-SO2 mixtur

142 measured H(2)(g) adsorption on Na synthetic montmorillonite-type clays and Callovo-Oxfordian (COx) c

143 om 10 to 40 mM ImpA in the presence of Na(+)-montmorillonite using the computer program SIMFIT.

144 (ferrihydrite, goethite, kaolinite, illite, montmorillonite) using the CuO-oxidation technique, alon

145 In this work, Pu(V) and Np(V) sorption to Na-montmorillonite was examined as a function of ionic stre

146 Pu(V) sorption to Na-montmorillonite was examined over a wide range of initia

147 as significantly enhanced when Cs(+)-exposed montmorillonite was irradiated and then analyzed using S

148 The binding of ImpA to montmorillonite was measured, and the adsorption isother

149 Pu(IV) sorption to montmorillonite was studied at initial concentrations of

150 The larger negative charge on these montmorillonites was demonstrated by the almost 2-fold g

151 se aromatic cationic amine sorption to Na/Ca-montmorillonite well beyond the extent expected by catio

152 icles, ordered mesoporous silica SBA-15, and montmorillonite were used as templates for achieving mes

153 of adsorption to interlayer sites within the montmorillonite, which is an expandable phyllosilicate.

154 ate the interlayers between the platelets of montmorillonites, which blocks the binding of the activa

155 precipitates were formed on the Fe(III)-rich montmorillonite, while sorbed Fe is predominantly presen

156 Treating the montmorillonite with dilute hydrochloric acid replaces t

157 chloric acid replaces the cations on the raw montmorillonite with protons.

158 Synthetic montmorillonites with increasing structural Fe(III) subs

159 Cu redistribution toward organic matter and montmorillonite, with small amounts of Cu retained by fe

160 yladenine and 3-methyladenine derivatives on montmorillonite yielded oligoadenylates as long as undec

161 e 2-methyladenine and adenine derivatives on montmorillonite yielded oligomers up to hexamers and pen