ライフサイエンスコーパス: viologen

1 itive to the oxidative stress reagent methyl viologen.

2 sensitivity of this E. coli mutant to methyl viologen.

3 d by using a surfactant derivative of methyl viologen.

4 n for the higher conductivity of the neutral viologen.

5 sensitivity to the redox-active agent methyl viologen.

6 ion of BSO by either NADPH or reduced methyl viologen.

7 activity required Ti(III) citrate and methyl viologen.

8 ystals of formate-reduced enzyme with benzyl viologen.

9 idenced from the electron transfer to methyl viologen.

10 hemical interrogation in the presence of C12-Viologen.

11 yl-CoA-dependent oxidation of reduced methyl viologen.

12 stream redox catalysts such as quinones and viologens.

13 roximately -0.7 V vs Ag/Ag(+)(0.1 M) for the viologen 2+/+ reduction at concentrations as high as 1.0

14 tocathodes in contact with an aqueous methyl viologen(2+/+) electrolyte, energy-conversion efficienci

15 enzyme was assayed in the presence of methyl viologen (4 mM) and inhibited by 70% when the enzyme was

16 incorporating HS(CH2)6-X-(CH2)6SH, where X = viologen (4,4'-bipyridinium) or pyrrolotetrathiafulvalen

17 highly water-soluble pi-conjugation extended viologen, 4,4'-(thiazolo[5,4-d]thiazole-2,5-diyl)bis(1-(

18 electron transfer to generate reduced methyl viologen, a species that persists in the presence of a s

19 H more than 50-fold, and it is proposed that viologens accelerate the redox equilibration of redox bu

20 ructure-property study on phosphoryl-bridged viologen analogues with a remarkably low reduction thres

21 redox behavior was also observed when methyl viologen and benzyl viologen were used as reductants.

22 alues of 29 and 15 microM for reduced methyl viologen and biotin sulfoxide reductase, respectively.

23 ty for the heteroternary complex with methyl viologen and CB[8] (MVCB[8]) within a vast pool of cycli

24 (II) cores (Fe(II)-HoSF), prepared by methyl viologen and CO, also reduces M-HoSF and M-AvBF species,

25 oinduced electron transfer with a variety of viologen and diquat electron acceptors.

26 1 s-1) with known electron acceptors, benzyl viologen and ferricyanide.

27 utants were completely devoid of both methyl viologen and formate-linked thiosulfate reductase and th

28 al stresses, including drought, salt, methyl viologen and H2O2 induced oxidative stress.

29 fib4 KD apples were more sensitive to methyl viologen and had higher superoxide levels during methyl

30 tein after redox cycling with reduced methyl viologen and Me2SO.

31 ion of chloroplasts were increased by methyl viologen and ozone, but not by high-light treatment.

32 The combination of a boronic acid-appended viologen and perylene diimide was able to perform a comp

33 detect Fe(CN)6(3-), Ru(NH3)6(3+), and benzyl viologen and report their presence via Ru(bpy)3(2+) (bpy

34 tion line C1 rescued the tolerance to methyl viologen and salinity and recovered the growth and physi

35 ensitivity to superoxide generated by methyl viologen and tellurite.

36 photo-reduction of a redox mediator (methyl viologen) and light driven H2 generation.

37 closely related series of organic dications (viologens) and a value of -43.6 cal/degrees K mol was ob

38 soxS-dependent induction by paraquat (methyl viologen), and the fldB gene is preceded by two overlapp

39 Ru(NH3)6(3+/2+), IrCl6(2-/3-), methyl viologen, and chlorpromazine all involve electron transf

40 idyl ring such as PQ, ethyl viologen, benzyl viologen, and diquat but not to menadione, plumbagin, py

41 dizable artificial electron acceptor, benzyl viologen, and the (P(700)(+) - P(700)) difference spectr

42 nsisting of a bromide catholyte and an ethyl viologen anolyte with the addition of tetrabutylammonium

43 The bis(hexafluorophosphate) salts of viologens are predominantly ion paired in acetone; the v

44 rtial reduction with dithionite using methyl viologen as a mediator, a signal at g(ave) = 1.9 appeare

45 The application of benzyl viologen as an electroactive indicator capable of differ

46 ng reduced methyl viologen or reduced benzyl viologen as artificial electron donors.

47 vate min(-)(1) mg(-)(1) protein using benzyl viologen as electron acceptor.

48 the reduction of NADP(+) with reduced methyl viologen as electron donor at a rate of 385 U/mg.

49 with Ti(III)-citrate as reductant and methyl viologen as mediator were similar to those obtained prev

50 high specific activity using reduced benzyl viologen as the electron donor (V(max) with nitrate, 1,1

51 ved/mg at 80 degrees C) using reduced methyl viologen as the electron donor.

52 ctivity using either NADPH or reduced methyl viologen as the electron donor.

53 M) and CO2 (apparent Km, 48 mM) with reduced viologen as the electron donor.

54 superoxide-generating agent paraquat (methyl viologen) as the inducer.

55 e assay based on the original quartz cuvette viologen assay of Jones and Garland was developed specif

56 A series of "viologen" based dendrimers with polycationic scaffold ca

57 Herein, an extended viologen-based cyclophane-ExBox2(4+)-has been employed a

58 covalent chemistry) and for the synthesis of viologen-based materials.

59 ore, a newly designed high-throughput methyl viologen-based photometric microtiter plate assay was es

60 Ferrocene-based RACs paired with viologen-based RACs cycled efficiently in a nonaqueous r

61 Viologen-based RACs display reversible cycling, accessin

62 pe Si electrodes in contact with a series of viologen-based redox couples in methanol through analyse

63 sembled with up to six boronic acid-appended viologens (BBVs): 4,4'-o-BBV, 3,3'-o-BBV, 3,4'-o-BBV, 4,

64 unds with a dipyridyl ring such as PQ, ethyl viologen, benzyl viologen, and diquat but not to menadio

65 cides fosmidomycin, phosphonothrixin, methyl viologen, benzyl viologen, clomazone, 2-(dimethylamino)e

66 e roughness was observed in the growth of Zr viologen bisphosphonate films.

67 trically reduced NR, unlike methyl or benzyl viologen, bound to cell membranes, was not toxic, and ch

68 grown cells yielded decreased reduced methyl viologen:BSO reductase, NADPH:BSO reductase, and NADPH:F

69 e stress and the superoxide generator methyl viologen but remarkably resistant to hydrogen peroxide (

70 escribed herein could be extended to genuine viologens but reached its limit when sterically demandin

71 o an oxidative stress-inducing agent, methyl viologen, but the sarA sodA double mutant was more resis

72 ) oxidation reaction were accepted by benzyl viologen (BV(2+)).

73 2 environment (p-type modulation) and benzyl viologen (BV) doping (n-type modulation).

74 The interactions of benzyl viologen (BV) with single- and double-stranded calf-thym

75 Here we demonstrate the use of benzyl viologen (BV), which has one of the highest reduction po

76 ted by the nitrate ionophore, reduced benzyl viologen (BV).

77 Extending the conjugation of viologen by a planar thiazolo[5,4-d]thiazole (TTz) frame

78 2)V(2+)C(12)H(25) (V(2+) = 4,4'-bipyridyl or viologen, C12-Viologen) were employed to detect anti-BPD

79 he reactive oxidative species inducer methyl viologen can induce macroautophagy in Arabidopsis (Arabi

80 second electron transfer process, generating viologen cation radical (V(*+)).

81 ystematic investigation of the effect of the viologen cation radical structure on the strength and na

82 at the nature of the interaction between the viologen cation radical units is that of a pi dimer (pim

83 partly stabilized by pi-dimerization of both viologen cation radicals.

84 Viologen-centered electron transfer is used to trigger a

85 n, phosphonothrixin, methyl viologen, benzyl viologen, clomazone, 2-(dimethylamino)ethyl diphosphate,

86 haracterization of these Hg tips with methyl viologen, cobalt sepulchrate trichloride, and hexamineru

87 Five new 4,4'-bipyridinium (viologen) core dendrimers containing a Frechet (Fn, n =

88 We measured reduced viologen-dependent nitrate reductase activity in a serie

89 GE for covalently bound haem, but the methyl-viologen-dependent nitrite reductase activities associat

90 A viologen derivative, 1,1'-di-p-tolyl-(4,4'-bipyridine)-1

91 rganobisphosphonate multilayer thin films of viologen derivatives were grown on copper dithiolate mul

92 ybrids were further utilized to reduce hexyl-viologen dication (HV2+) and a sacrificial electron dono

93 With methyl viologen dication (MV(2+)) added as a trap, Acr-(3)An +

94 utilized to photochemically reduce the hexyl viologen dication in the presence of a sacrificial elect

95 ly different binding pocket wherein a methyl viologen dication is stabilized by interacting with a bi

96 the tetraphenylborate anionic moiety to the viologen dication was observed less than 1 mus after exc

97 ramagnetic switch consisting of a linked bis(viologen) dication diradical that can be cycled reversib

98 l (BU6) form crystals in which the layers of viologen dications alternate with those of a 1:2 supramo

99 ylogens, are hybrids of pyrylium cations and Viologen dications.

100 etween coumarin 153 (C153) and 4,4'-dimethyl viologen dichloride (MV(2+)) across the molecular barrie

101 mmetry is consistent with singly reduced C12-Viologen dimers bound at two different DNA environments,

102 e radical cation generated on reduction of a viologen disubstituted with p-xylylene units, both carry

103 -/4-), Ru(NH3)6(3+/2+), IrCl6(2-/3-), methyl viologen, dopamine, ascorbic acid, Fe(3+/2+), and chlorp

104 hin MoS(2) by introducing AuCl(3) and benzyl viologen dopants.

105 hain 2-ketoacids coupled to the reduction of viologen dyes or ferredoxin.

106 cells, reversible H2-dependent reduction of viologen dyes still occurred.

107 peropyrenium (DAPP(2+)) unit and an extended viologen (ExBIPY(2+)) unit, which are linked together by

108 The thiazolothiazole viologens exhibit strong blue fluorescence with high qua

109 rplanar distance between two phenyl-extended viologen (ExV(2+)) chromophores is varied systematically

110 Substituting heptyl viologen for MV increases stability, with no degradation

111 d and is insensitive to the placement of the viologen functional group.

112 nge host-guest systems based on paraquats or viologens (G(2+)2X(-)) and crown ethers (H).

113 In these dendrimers, the viologen group is covalently attached to the apical posi

114 Each viologen group was encircled by a CB[7] ring with a rapi

115 imers containing a single 4,4'-bipyridinium (viologen) group covalently attached to the focal point o

116 Scaffolds presenting 1-3 viologen groups recruit a respective 1-3 copies of the s

117 king through the binding of the naphthyl and viologen guests.

118 The thiazolothiazole viologens have been characterized using cyclic voltammet

119 Methyl viologen hexafluorophosphate (MV(2+).2PF6(-)) and dodeca

120 lus ascorbate as an electron donor to methyl viologen, however, was the same as observed in the contr

121 tial crystallization of this chiral helicene-viologen hybrid has been established to obtain pure P an

122 radicals such as MV(+*) (MV refers to methyl viologen, i.e., N,N'-dimethyl-4,4'-bipyridinum) engage i

123 ponding nitro derivatives using 1,1'-dioctyl-viologen in a triphasic milieu.

124 F(A)- could be reoxidized by methyl viologen in F(B)-less PS I complexes, although at a conc

125 nt redox reactions of both polythiophene and viologen in solid-state devices and correlate such react

126 he artificial electron donor DCPIP to methyl viologen in thylakoid membranes.

127 the synthesis of a broad range of asymmetric viologens in high yield at room temperature and is compa

128 The sodB- was very sensitive to methyl viologen, indicating a specific role for the FeSOD in pr

129 ible charge-transfer absorptivity due to the viologen-indole pair.

130 Benzyl viologen interacts electrostatically with both double-st

131 uctures between two pyridinium groups in the viologen ion.

132 Methyl viologen is in turn a weaker pi-acceptor than anthaquino

133 yields the dication 2(2+) 2Br-, an "extended viologen" isostructural with 4,4''''-di-n-octyl-p-quater

134 the WT, gr3 was sensitive to salt and methyl viologen; it showed inhibited growth, decreased maximal

135 threshold as compared to all other (phospha)viologens known to date due to the combination of an ext

136 d third-generation dendrimers comprised of a viologen-like core and an array of naphthalene periphera

137 ther solvothermal or microwave conditions, a viologen-linked covalent organic network in the form of

138 succinogenes contained high levels of benzyl viologen-linked hydrogenase (12.2 U), fumarate reductase

139 enes resulted in a loss of detectable methyl viologen-linked hydrogenase activity.

140 rogenase gene cluster, hyd, exhibited methyl viologen-linked hydrogenase enzymatic activity, but hyd

141 anscribe nar and subsequently express methyl viologen-linked nitrate reductase activity under aerobic

142 f iodine due to the presence of the cationic viologen linker and, in the cases of HT and HS, permanen

143 Eight Ruthenium(II) aminophenanthroline-viologen maleimide Diads (Ru-Diads) have been successful

144 hanistic schemes are proposed for the benzyl viologen-mediated two-electron-reduction of FTR and the

145 yl-4,4'-bipyridinium dication (N,N'-dimethyl viologen, MeV) suggests that the higher binding constant

146 fied with a [NiFe]-hydrogenase embedded in a viologen-modified redox hydrogel for the fabrication of

147 mical gating at the single molecule level of viologen molecular bridges in ionic liquids is examined.

148 ously been limited to the synthesis of small viologen molecules and conjugated viologen oligomers.

149 CdS quantum dots (QDs) with acid-derivatized viologen molecules, N-[1-heptyl],N'-[3-carboxypropyl]-4,

150 catalyze the reduction of NO(2)(-) by methyl viologen monocation radical (MV(red)), displaying a hype

151 g and the radical cation of methyl-phenylene-viologen (MPV(*+)).

152 Two BIPY(*+) radical cations, methyl viologen (MV(*+)) and a dibutynyl derivative (V(*+)), we

153 the photoelectrochemical reduction of methyl viologen (MV(+2)).

154 1 inclusion complex between the guest methyl viologen (MV(2+)) and the host cucurbit[7]uril (CB7) wer

155 reduction of nitrate to nitrite used methyl viologen (MV(2+)) as the electron transfer mediator for

156 Aqueous solutions of methyl viologen (MV(2+)) exhibit anomalous fluorescence behavio

157 reaction of charged nanocrystals with methyl viologen (MV(2+)).

158 , (DNP-BS(-)), and positively charged methyl viologen (MV(2+)).

159 dative stress conditions generated by methyl viologen (MV) added during the early exponential phase o

160 rm 1:1:1 heteroternary complexes with methyl viologen (MV) and a second aromatic guest.

161 When paired with methyl viologen (MV) as an anolyte, resulting FcNCl/MV and FcN2

162 measured by three electron acceptors, methyl viologen (MV), potassium ferricyanide, or dichloroindoph

163 esulted in an increased resistance to methyl viologen (MV)-induced oxidative stress, documented by th

164 ntial for superoxide stress response, methyl viologen (MV)-sensitive mutants of S. mutans were genera

165 We discover a methyl viologen (MV)/bromide electrolyte that delivers a high s

166 photosystem I (duraquinol [DQH(2)] to methyl viologen [MV]) proton pumping partial reaction was nearl

167 enium bipyridine [Ru-(bipy)3(2+)] and methyl viologen [MV2+]) was quantified in a U-tube permeation c

168 By using methyl viologen (N,N'-dimethyl-4,4'-bipyridinium) to shuttle el

169 The protein possessed methyl viologen:NADP(+) oxidoreductase activity and catalyzed t

170 bserved on recombinant CbR module and methyl viologen nitrate reduction by holo-NaR, suggesting that

171 DH:cytochrome c reductase and reduced methyl viologen:NR, closely paralleled the appearance and disap

172 aracterized by the stepwise reduction of the viologen nucleus (V(2+)/V(+) and V(+)/V).

173 s of small viologen molecules and conjugated viologen oligomers.

174 The high selectivity exhibited by viologen on the pore wall facilitated its use in a CT af

175 with zirconium bisphosphonate multilayers of viologen on top of copper dithiolate multilayers of porp

176 fur component oxidized CO and reduced methyl viologen or a ferredoxin isolated from M. thermophila.

177 ith stoichiometric amounts of reduced benzyl viologen or frozen under turnover conditions in the pres

178 rthermore, the effects of exposure to methyl viologen or H2O2 on intracellular NADH and NAD(+) concen

179 transport activity when treated with methyl viologen or norflurazon (NF).

180 xide reductase activity using reduced methyl viologen or reduced benzyl viologen as artificial electr

181 ctively sensitive to peroxide but not methyl viologen or Rose Bengal, and GPXs, APX, and MSRA2 genes

182 different oxidative stress conditions-methyl viologen, ozone, and high light-differences were observe

183 ioxidant depletion in the presence of methyl viologen (paraquat), a known agent of oxidative stress a

184 evels of the ROS-generating herbicide methyl viologen (paraquat), suggesting a common protective role

185 Examples include enhanced methyl viologen (Paraquat)-induced oxidative stress tolerance i

186 ox-active superoxide-generating agent methyl viologen (paraquat).

187 imethyl-4,4'-bipyridinium dichloride (methyl viologen; paraquat), an herbicide that causes depletion

188 m is used to electrochemically detect benzyl viologen present in solution and report its presence via

189 s, isolation, and characterization of phenyl viologen (PV) as a dication, radical cation, and neutral

190 ility of functionalization in SBA-15 through viologen-pyranine charge transfer (CT) modules.

191 A covalently linked viologen radical cation dyad acts as a reversible thermo

192 The phenyl viologen radical cation exhibits behavior characteristic

193 for reduction of the V(2+) state to the V+ (viologen radical cation) state.

194 The tendency for viologen radical cations to dimerize has been harnessed

195 actions that are common in crystals of other viologen radical cations.

196 We found that the alkyl side chains of the viologen recognition site on the molecular axle act as s

197 First, the electrochemical kinetics for viologen reduction remains fast from the first to the th

198 s polaron form accompanied by a one-electron viologen reduction.

199 o consecutive one-electron reductions of the viologen residue are affected by the size of the dendrit

200 ors the generation of positive charge in the viologen residue in CH(2)Cl(2), THF, and CH(3)CN solutio

201 host-guest binding interactions between the viologen residue in these dendrimers and the crown ether

202 dendron linked to each of the termini of the viologen residue were prepared and characterized.

203 ing a single redox-active 4,4'-bipyridinium (viologen) residue were synthesized and characterized.

204 en, the first such measurements of a neutral viologen, reveal that it is a significantly better condu

205 d using both aqueous (Fe(CN)(6)3-/4-, methyl viologen, Ru(NH3)(6)3+/2+, and IrCl(6)2-/3-) and nonaque

206 yridinium salt, such as bis(DMAP)CH2Cl2 or a viologen salt.

207 n the sarA background, can rescue the methyl viologen-sensitive phenotype observed in the absence of

208 f new synthetic strategies toward the target viologen species.

209 zyme-dependent reoxidation of reduced methyl viologen spectrophotometrically at 600 nm.

210 For the entire redox range, viologens stimulate CO(2) reduction by CODH more than 50

211 sfer transition that leads to changes in the viologen structure in the excited singlet state.

212 pull character of the electron donor twisted viologen structure, which helps formation of the borate

213 1,4-diazabicyclo[2.2.2]octane, DABCO), and a viologen-substituted polymer guest.

214 esulting material indicate that redox-active viologen subunits located on the rotaxane components can

215 We show that AMC260 and AMC364 lack methyl viologen-supported nitrate reductase activity.

216 Viologen-SWCNT hybrids are synthesized by aryl-diazonium

217 Viologen-SWCNTs were used for the preparation of an elec

218 and convenient way for the anion exchange of viologen systems by utilizing methyl triflate.

219 Viologen-tetraarylborate ion-pair complexes were prepare

220 The syntheses of isomeric helical viologens that have potential applications in supramolec

221 ted 4,4'-bipyridinium cations, also known as viologens, that proved to be inaccessible by the classic

222 conductivity measurements of neutral phenyl viologen, the first such measurements of a neutral violo

223 in DMF yields 2, the first neutral extended viologen to be isolated.

224 strong CT interactions between pyranine and viologen to reversibly modify the pore size and philicit

225 litude macrocycle shuttling motion, from the viologen to the merocyanine moiety.

226 sents a robust method for the conjugation of viologens to peptides using an amide coupling strategy t

227 mical gate, changes from an on-off response (viologen) to an off-on-off response (pyrrolotetrathiaful

228 imultaneously and, in the presence of methyl viologen, to recognize N-terminal tryptophan over intern

229 h phosphatidylethanolamine increasing methyl viologen transport.

230 ansgenic plants are more sensitive to methyl viologen treatment than wild-type plants and accumulate

231 d had higher superoxide levels during methyl viologen treatment.

232 self-assembly of pseudorotaxanes composed of viologen-type axle and calix[6]arene wheel components.

233 ination with the face-selective threading of viologen-type axles afforded by tris(N-phenylureido)cali

234 The viologen-type electroactive unit embedded directly in th

235 s-responsive guest-containing spiropyran and viologen unit assembles with a 24-membered crown ether i

236 A redox-active viologen unit at the heart of a dumbbell-shaped molecula

237 he p-xylylene linkers to one of the extended viologen units in ca. 240 ps and recombines in ca. 4 ns.

238 phenylene-bridged 4,4'-bipyridinium extended viologen units into a para-phenylene-based cyclophane re

239 3 which bears 24 covalently attached methyl viologen units on its external surface, as evidenced by

240 ane comprising two pi-electron-poor extended viologen units tethered at both ends by two p-xylylene l

241 lophane guests, which consist of two radical viologen units that are linked by two ortho-, meta-, or

242 of one trans-azobenzene unit along with two viologen units was developed.

243 nomer comprising a BB(4+) ring appended with viologen (V(2+)) and 1,5-dioxynaphthalene (DNP) recognit

244 Methyl viologen was allowed to absorb into the Nafion layer, wh

245 o aromatic peptides in the absence of methyl viologen was studied by isothermal titration calorimetry

246 as well as its resistance to H2O2 and methyl viologen were indistinguishable from those of the wild t

247 lso observed when methyl viologen and benzyl viologen were used as reductants.

248 25) (V(2+) = 4,4'-bipyridyl or viologen, C12-Viologen) were employed to detect anti-BPDE damage to DN

249 ito-Bodipy-TOH in cells stressed with methyl viologen, whereas no enhancement was observed in control

250 o 4,4'-dipyridinium (i.e., archetypal methyl viologen), which is reduced by two single-electron trans

251 and S. coelicolor SoxR are less sensitive to viologens, which have redox potentials below -350 mV.

252 ene derivatives are weaker pi-acceptors than viologens, which make good pi-acceptor cyclophanes.

253 The phosphorescence from Pt-p is quenched by viologens with different charges (MV(+), MV(2+), and MV(

254 ining the characteristic chromic response of viologens with two fully reversible one-electron reducti

255 ril (CB[8]) and an auxiliary guest, dimethyl viologen, with high selectivity and equilibrium binding