ライフサイエンスコーパス: quaternary ammonium

1 8)[AQA(+)*X(-)](12) (X = Cl, Br; AQA = alkyl quaternary ammonium).

2 rpose were amines, amidines, guanidines, and quaternary ammonium.

3 moniums with the deprotonation resistance of quaternary ammoniums.

4 t-activatable molecule acrylamide-azobenzene-quaternary ammonium (AAQ) to the eyes of mice with end-s

5 f the micropillars are functionalized with a quaternary ammonium aminooxy salt, [2-(aminooxy)ethyl]-N

6 s involving chlorine with N-AP-FHxSA and its quaternary ammonium analog were investigated; seven were

7 Naloxone methiodide (a quaternary ammonium analog) caused a maximal up-regulati

8 tes we probed the Shaker K+ channel with the quaternary ammonium analogue, tetrabutyl antimony (TBSb)

9 y electrophoresis was applied to analysis of quaternary ammonium and phenoxypropionic acid herbicides

10 In contrast, quaternary ammonium and phosphonium salts gave excellent

11 ubstrates, including quaternary phosphonium, quaternary ammonium, and planar polyaromatic compounds.

12 , binding assays, and a proteoliposome-based quaternary ammonium antiseptic transport assay that we d

13 elective SMR protein to promiscuously export quaternary ammonium antiseptics, similar to the activity

14 A family of 20 tris-azaaromatic quaternary ammonium (AQA) compounds were tested for thei

15 We developed a photoisomerizable molecule, quaternary ammonium-azobenzene-quaternary ammonium (QAQ)

16 (diallyldimethylammonium) - polyamine with a quaternary ammonium base - were used as polyamines.

17 The indicators along with a quaternary ammonium base are embedded into ethyl cellulo

18 make E. coli cells more susceptible to other quaternary ammonium based antimicrobials.

19 A metal-free quaternary ammonium-based coating was applied homogeneou

20 roperties comparable to those of traditional quaternary-ammonium-based AEMs as well as good alkaline

21 ence spectroscopic study we demonstrate that quaternary ammonium beta-cyclodextrin (QABCD) fulfils bo

22 A quaternary ammonium betaine 7 is described which shows e

23 The use of ephedrine-substituted quaternary ammonium binaphthyl salts as molecular recept

24 rbons, phthalates), fracturing fluids (e.g., quaternary ammonium biocides, 2-butoxyethanol) and downh

25 racellular Ca(2+); these were insensitive to quaternary ammonium block.

26 Some studies used large quaternary ammonium blocker molecules to examine the eff

27 annel activation, we show that intracellular quaternary ammonium blockers bind to closed MthK channel

28 Quaternary ammonium blockers inhibit many voltage-activa

29 Quaternary ammonium blockers were previously shown to bi

30 ns (under an extraction mechanism) employing quaternary ammonium bromide catalysts.

31 ral cyanide ion source, derived from KCN and quaternary ammonium bromide derived from cinchona alkalo

32 ifferent chemistry based on azobenzene and a quaternary ammonium bromide headgroup that self-assemble

33 sed cationic metal-organic layer (CMOL) with quaternary ammonium capping groups to deliver small inte

34 0) (time for 50% of substance to disappear): quaternary ammonium carboxyl betaine tertiary amine > am

35 someric indolines in the presence of certain quaternary ammonium catalysts is observed; this may be r

36 ermination of the mode of inhibition for the quaternary ammonium-catechol-based inhibitors 3-[(trimet

37 made by coating the electrode surface with a quaternary ammonium cation (R(4) N(+) ) surfactant, was

38 been synthesized using an unusual polycyclic quaternary ammonium cation as the structure-directing ag

39 When a quaternary ammonium cation such as [Bu4N]+ is used as a

40 We describe here the introduction of a quaternary ammonium cation to DAG molecules, using N-chl

41 Quaternary ammonium cationic polymers, such as poly(dial

42 Quaternary ammonium cationic polymers, such as poly(dial

43 rk demonstrates two approaches for modifying quaternary ammonium cationic polymers, which may enable

44 Organoclays synthesized from single chain quaternary ammonium cations (QAC) ((CH(3))(3)NR(+)) exhi

45 structure-directing agents (OSDAs), such as quaternary ammonium cations and amines, used in the synt

46 ctinide separation processes that widely use quaternary ammonium cations as extractants or in room te

47 crystal Fe(3)GeTe(2) (FGT) by intercalating quaternary ammonium cations into the vdW spacing.

48 vator effect of PD was prevented by external quaternary ammonium cations or dofetilide, which approac

49 A number of tertiary amine and quaternary ammonium cations spanning a mass range of 60-

50 ganic cations (e.g., alkyl chain-substituted quaternary ammonium cations) are much larger than their

51 ed MPCAs with 7 (MIM7NBCD) and 14 (MIM14BCD) quaternary ammonium charges with a series of monovalent

52 e more efficacious against C. auris than the quaternary ammonium chloride (QAC)-alcohol-based disinfe

53 We report a class of quaternary ammonium Cinchona-functionalized crown ether-

54 from serum using selective precipitation by quaternary ammonium compaction agents.

55 The quaternary ammonium compound (QAC) choline is a major co

56 We used WGS data and MIC values to quaternary ammonium compound (QAC) disinfectants from 16

57 ldimethylammonium chloride (C(14)BDMA-Cl), a quaternary ammonium compound (QAC), under aerobic condit

58 d 0.5% sodium hypochlorite, 70% ethanol, two quaternary ammonium compound (QAC)-based disinfectants,

59 The quaternary ammonium compound clofilium and its tertiary

60 solute in T. erythraeum strain IMS101 as the quaternary ammonium compound N,N,N-trimethyl homoserine

61 ium hypochlorite, ethanol, a formulated dual quaternary ammonium compound, an accelerated hydrogen pe

62 aluate the antimicrobial activity of a novel quaternary ammonium compound, K21, when coated on differ

63 Alcohol-, quaternary ammonium compound-, hydrochloric acid-, organ

64 zers containing p-chloro-m-xylenol (PCMX) or quaternary ammonium compounds (QAC) caused complete inac

65 ncreased the tolerance of S. aureus cells to quaternary ammonium compounds (QAC).

66 Quaternary ammonium compounds (QACs) are commonly used i

67 Since quaternary ammonium compounds (QACs) are exuded by germi

68 Quaternary ammonium compounds (QACs) are high production

69 Quaternary ammonium compounds (QACs) are high-production

70 Quaternary ammonium compounds (QACs) are used in consume

71 lkyl carbon, alkylphosphocholines (APCs) and quaternary ammonium compounds (QACs) had significant cha

72 Quaternary ammonium compounds (QACs) have been mainstays

73 sensitive and robust method of analysis for quaternary ammonium compounds (QACs) in marine sediments

74 a simple ABC transporter for acquisition of quaternary ammonium compounds (QACs) in Pseudomonas sp.,

75 Determination of quaternary ammonium compounds (QACs) often is considered

76 Quaternary ammonium compounds (QACs) represent widely us

77 ) layer functionalized with amino-containing quaternary ammonium compounds (QACs) through an in situ

78 transformation over 180 days of two cationic quaternary ammonium compounds (QACs) with perfluoroalkyl

79 an exposure to the widely used disinfectants quaternary ammonium compounds (QACs).

80 , secondary, tertiary amines), and a pair of quaternary ammonium compounds (QACs).

81 tron reactions, namely, the decomposition of quaternary ammonium compounds and the conversion of trif

82 The behavior of the quaternary ammonium compounds and the two C(16) amines s

83 The N terminus of a Kvbeta subunit and quaternary ammonium compounds bind to the inner pore of

84 Quaternary ammonium compounds formed pi-pi or cation-pi

85 e use of biocides such as glutaraldehyde and quaternary ammonium compounds has spurred a public conce

86 bioconcentration of 10 alkylamines plus two quaternary ammonium compounds in juvenile rainbow trout

87 We also found a twofold increase in quaternary ammonium compounds in salt-stressed leaves of

88 The BCFs of the quaternary ammonium compounds showed no pH dependence an

89 ter and a quaternary nitrogen (N) of natural quaternary ammonium compounds such as stachydrine, carni

90 Although CEC-normalized sorption of quaternary ammonium compounds to clay was up to 10-fold

91 ylammonium cations were studied to represent quaternary ammonium compounds with different surface act

92 primary, secondary, and tertiary amines and quaternary ammonium compounds, all showed the same respo

93 ugE leads to resistance to a subset of toxic quaternary ammonium compounds.

94 ce to several antimicrobials, tellurium, and quaternary ammonium compounds.

95 ctrum resistance to polyaromatic cations and quaternary ammonium compounds.

96 crobials, including polyaromatic cations and quaternary ammonium compounds.

97 betaine transformed rapidly to PFHxA, other quaternary-ammonium-containing polyfluoroalkyl substance

98 and reoxidized by a membrane-impermeant bis-quaternary ammonium derivative of diamide.

99 Finally, quaternary ammonium derivatives had no effect, suggestin

100 ptor by tetraethylammonium (TEA) and related quaternary ammonium derivatives.

101 ovel antibacterial dentin primers containing quaternary ammonium dimethacrylate (QADM) and nanopartic

102 es of amorphous calcium phosphate (NACP) and quaternary ammonium dimethacrylate (QADM); and (2) inves

103 C difficile, for which bleach was used); UV (quaternary ammonium disinfectant and disinfecting ultrav

104 cted with one of four strategies: reference (quaternary ammonium disinfectant except for C difficile,

105 ium chlorides (BACs), a widely used class of quaternary ammonium disinfectants, on microbial communit

106 CO2 reduction were determined with different quaternary ammonium electrolytes.

107 We demonstrate that a new quaternary ammonium-ether structure-directing agent, "Mo

108 receptors in combination with a traditional quaternary ammonium extractant.

109 The quaternary ammonium function, which should prevent the c

110 e hydrophilicity and antibacterial activity, quaternary ammonium-functionalized amphiphilic diblock c

111 We compared a quaternary ammonium-functionalized HAIX resin (strong ba

112 mosquitoes to lay virus-infected saliva on a quaternary ammonium-functionalized paper (Q-paper) matri

113 Consistent with this model, a tethered quaternary ammonium group emanating from position alpha1

114 The positively charged quaternary ammonium group enhances the ionization effici

115 Pairwise comparison revealed that the quaternary ammonium group imparted a strong affinity of

116 Furthermore, incorporating a quaternary ammonium group into defunctionalized lobeline

117 The influence of the quaternary ammonium group is mitigated in polyfluoroalky

118 ng indicates that, on binding, the cationic, quaternary ammonium group of acetylcholine makes van der

119 The quaternary ammonium group of the acetylcholine was deter

120 interactions may be involved in binding the quaternary ammonium group of the agonist, acetylcholine.

121 rbonyl of alphaW149 positions this agonist's quaternary ammonium group so as to reduce the cation-pi

122 d with a cationic siloxane terminated with a quaternary ammonium group).

123 holamine, which contain a positively charged quaternary ammonium group, were synthesized and tested a

124 tion through a n-cation interaction with the quaternary ammonium group.

125 on through a pai-cation interaction with the quaternary ammonium group.

126 Exemplar compounds feature a tertiary or quaternary ammonium group.

127 anion-exchange membrane bearing conventional quaternary ammonium groups (Gu-0).

128 ct bacteria to model surfaces decorated with quaternary ammonium groups (known to kill bacteria that

129 d to other AERs) achieved through preloading quaternary ammonium groups (QAGs) with hexyl chain (-C(6

130 s work, novel dicationic styryl dyes bearing quaternary ammonium groups are designed to improve bindi

131 luble cationic pillararenes differing in the quaternary ammonium groups efficiently inhibited the for

132 a dissipative ion exchange process, converts quaternary ammonium groups in the hydrogel from hydrophi

133 subsequently with a vinyl monomer containing quaternary ammonium groups to form a "tentacular" anion

134 of polymers bearing less chloramine-reactive quaternary ammonium groups with dipropylamino (DPA) subs

135 ary amine groups to less chloramine-reactive quaternary ammonium groups.

136 ies was: guanidines > amidines approximately quaternary ammonium > amines.

137 avity that exhibits a great affinity for the quaternary ammonium guests, originating from favorable c

138 ariety of organic solvents stabilized with a quaternary ammonium halide salt.

139 48 distinct Au(32) clusters with AQAX (alkyl quaternary ammonium halide) ligands.

140 ew class of hydrophobic polymer ligands with quaternary ammonium head groups for surface modification

141 actions of the analytes' permanently charged quaternary ammonium head or hydrophobic tail with the ut

142 Quaternary Ammonium Herbicides (QUATs) are nonselective

143 the study highlights that surfactants, i.e., quaternary ammoniums in the positive ionization mode and

144 hysiologically determined size dependence of quaternary ammonium ion blocking from the intracellular

145 Primary or quaternary ammonium ion looping strategies lead to large

146 A quaternary ammonium ion served as the marker ion.

147 nproductive side reaction facilitated by the quaternary ammonium ion, leading to the formation of a s

148 e form of the small cation (i.e., metal ion, quaternary ammonium ion, or protonated molecule) did not

149 Quaternary ammonium ion-capped SWCNTs readily suspend in

150 he synthesis and properties of N-spirocyclic quaternary ammonium ionenes (spiro-ionenes) containing 5

151 t ions and pore-blocking molecules including quaternary ammonium ions and drugs.

152 The other family, Series-B, has quaternary ammonium ions connecting the long chains to t

153 Of specific interest are the quaternary ammonium ions in lipids.

154 ammonium ions over secondary, tertiary, and quaternary ammonium ions in organic solvents.

155 The separation of singly charged aliphatic quaternary ammonium ions introduced by electrospray was

156 The setup was tested with a series of quaternary ammonium ions introduced with an electrospray

157 efects interact with the structure-directing quaternary ammonium ions preferably close to the charge

158 t 4AP, like tetraethylammonium ion and other quaternary ammonium ions, enters and leaves the channel

159 ted relative to cation-pai interactions with quaternary ammonium ions, offering key insight into how

160 gher potencies than any previously described quaternary ammonium ions.

161 used for many years to explain the action of quaternary ammonium ions.

162 pulsion, a mechanism previously proposed for quaternary ammonium ions.

163 or alkali metals (Li(+) > Na(+) > K(+)) than quaternary ammonium ions.

164 Quaternary ammonium ligands bind NPs through non-covalen

165 ic receptor to which acetylcholine and other quaternary ammonium ligands bind, we have examined the r

166 es bind more strongly than sulfobetaines and quaternary ammonium ligands, yet all these headgroups im

167 c mRNA delivery, we characterized a panel of quaternary ammonium lipids as SORT molecules to assess h

168 Here we tested two newly developed quaternary ammonium methacrylates (QAMs) against endodon

169 bonding agents, and other resins containing quaternary ammonium methacrylates to suppress plaque bui

170 he incorporation of enzyme inhibitors (i.e., quaternary ammonium methacrylates) into the resin blends

171 l mechanisms for chlorhexidine, nano-silver, quaternary ammonium methacrylates, and protein-repellent

172 Quaternary ammonium methacryloxy silicate (QAMS)-contain

173 The quaternary ammonium moiety did not determine a polyfluor

174 Due to the presence of a positively charged quaternary ammonium moiety in C18-TMS, the resulting sol

175 ch aromatic-cage mediated recognition of the quaternary ammonium moiety is emerging as the most strik

176 a hydrazone conjugate harboring a precharged quaternary ammonium moiety, which enabled the facile det

177 T-type zeolites, a large number of amines or quaternary ammonium molecules are successfully predicted

178 molecular stoppers, binding to the two outer quaternary ammonium motifs.

179 reveal that a sulfonium ion can replace the quaternary ammonium nitrogen as an alternative pharmacop

180 l, while the comparable interaction with the quaternary ammonium of acetylcholine is approximately 2

181 cterial sensitivity to compounds harboring a quaternary ammonium on an aromatic ring (e.g., ethidium

182 The PFASs containing quaternary ammonium or betaine groups showed high stabil

183 f antimicrobial enhancing modalities such as quaternary ammonium or guanidinium groups.

184 used in a combined approach to design new di-quaternary ammonium organic structure-directing agents (

185 in situ turnover in a chemically challenging quaternary ammonium oxidative demethylation reaction was

186 Key features of syntheses, involving the quaternary ammonium passivation of CsPbBr(3) nanocrystal

187 eded under the catalysis of Cinchona-derived quaternary ammonium phenoxide that, in combination with

188 t with or impact the binding of bretylium, a quaternary ammonium phenylmethylamine derivative that is

189 lysis of phosphodiester bond hydrolysis, the quaternary ammonium phosphate 1 was used as a bait and s

190 were accomplished via transamination with a quaternary ammonium piperidone or via addition of methyl

191 ately, chloramination of waters treated with quaternary ammonium polymers leads to the formation of c

192 than the corresponding MEA performance with quaternary ammonium polysulfone (QAPS) binder at the sam

193 been little work on selective recognition of quaternary ammonium (Q(+)) ion pairs.

194 between this benzene ring and the agonist's quaternary ammonium (QA) and (2) AChRs respond strongly

195 is the potential target of a broad class of quaternary ammonium (QA) blockers and negatively charged

196 Quaternary ammonium (QA) ions are a class of pore blocke

197 adigm of pore blockade by internally applied quaternary ammonium (QA) ions exhibiting slow blocking k

198 binding, we applied a variety of hydrophilic quaternary ammonium (QA) ions to the noninactivating mut

199 The quaternary ammonium (QA) lidocaine derivative QX-314 (2-

200 ment of nitrogenous functional groups [i.e., quaternary ammonium (QA), pyridine, and pyridinium catio

201 Quaternary ammonium (QA)-modified activated carbon perfo

202 ble molecule, quaternary ammonium-azobenzene-quaternary ammonium (QAQ), that enables rapid and select

203 eptors harboring gammaL119C treated with the quaternary ammonium reagent MTSET (trimethylammonium-eth

204 he biotransformation of perfluorooctaneamido quaternary ammonium salt (PFOAAmS) was characterized by

205 ransformation of perfluorooctane sulfonamide quaternary ammonium salt (PFOSAmS) was very slow with un

206 essed against a counterpart additised with a Quaternary Ammonium Salt (QAS) agent, thus obtaining a v

207 istyl ammonia) propane sulfonate (DMMAPS), a quaternary ammonium salt (QUATS), and hexafluoroisopropa

208 elationship around the tropane scaffold, the quaternary ammonium salt 34 was identified as a very pot

209 variety of functional groups on the starting quaternary ammonium salt and has been successfully exten

210 Both the N-methyl quaternary ammonium salt and the O-trimethylsilyl deriva

211 Eleven water soluble 7-substituted quaternary ammonium salt derivatives of 10,11-(methylene

212 inguish dibromoaniline, dichloroaniline, and quaternary ammonium salt isomers, as well as a pair of 2

213 Lewis acid catalyzed quaternary ammonium salt mediated highly regioselective

214 We established that quaternary ammonium salt moieties carrying highly hinder

215 The quaternary ammonium salt poly (diallyldimethylammonium c

216 Addition of a quaternary ammonium salt such as phenyltrimethylammonium

217 lies on utilizing a significantly lipophilic quaternary ammonium salt to transfer a nucleophile (e.g.

218 When 10 mol % of a cinchona derived quaternary ammonium salt was employed as the catalyst un

219 al groups (amide, ester, carboxylic acid, or quaternary ammonium salt) to prevent membrane insertion

220 nyl groups, whereas the presence of a stable quaternary ammonium salt, a carboxylic, a phenol, or an

221 the methylation of azatriquinacene to give a quaternary ammonium salt, followed by oxidation to the t

222 minal peripheral modification, introducing a quaternary ammonium salt, is reported and was found to p

223 atalyzed by a cobalt salen complex bearing a quaternary ammonium salt, yields the poly(propylene-co-g

224 Results of this RCT demonstrated that a quaternary ammonium, salt-based, 24-hour continuously ac

225 The intervention was a quaternary ammonium, salt-based, 24-hour continuously ac

226 ic asymmetric [2,3]-rearrangement of allylic quaternary ammonium salts (either isolated or prepared i

227 ease biocidal agents, including antibiotics, quaternary ammonium salts (QAS), and silver, into the su

228 Quaternary ammonium salts (QUATS), such as cetylpyridini

229 The quaternary ammonium salts 8a (hystatin 2) and 8b exhibit

230 nts (DES) can be formed between a variety of quaternary ammonium salts and carboxylic acids.

231 trolytes were also performed, revealing that quaternary ammonium salts are the best mediators for thi

232 vity of conjugated Mannich bases and related quaternary ammonium salts as alkylating agents and singl

233 t optimization led to the discovery of novel quaternary ammonium salts as highly potent muscarinic ac

234 ization of acrylonitrile employing different quaternary ammonium salts as supporting electrolytes was

235 In contrast to traditional methodologies, quaternary ammonium salts can serve as solid olefin prec

236 Compared to conventional methylating agents, quaternary ammonium salts have the advantages of being n

237 electron-donating iodide anions as parts of quaternary ammonium salts in the arm region, we found th

238 l groupT has on hydrogen bonding and logP of quaternary ammonium salts is also described.

239 almost quantitative yields (71-98%) from the quaternary ammonium salts obtained by N-alkylation of th

240 stallization and solid photochemistry of six quaternary ammonium salts of 2,4-di-p-carboxyphenyl-2,4-

241 e reaction for the construction of aromatic, quaternary ammonium salts such as those found in 2 or 3.

242 one/CH(2)Cl(2)-insoluble, highly fluorescent quaternary ammonium salts undergo addition/ring opening

243 perties for a large number of the cations of quaternary ammonium salts usually employed as supporting

244 ynyl water-soluble Mannich bases and related quaternary ammonium salts were synthesized and investiga

245 Sequentially, the quaternary ammonium salts were treated with different nu

246 chirality have primarily been established in quaternary ammonium salts(10-12) and bridged bicyclic am

247 ion intermediates were investigated, and the quaternary ammonium salts, derived from alkyl halides an

248 alyzed borylation of two classes of aromatic quaternary ammonium salts, leading to versatile meta-bor

249 ur chemically distinct classes of molecules (quaternary ammonium salts, lipids, peptides, and carbohy

250 ubstrate was effectively controlled by using quaternary ammonium salts.

251 y available and inexpensive Cinchona-derived quaternary ammonium salts.

252 ould be used to cage tertiary amine drugs as quaternary ammonium salts.

253 ratios to form mono- and bis-functionalized quaternary ammonium salts.

254 This di-quaternary ammonium SDA combines butyl ammonium, in plac

255 acidic sites and the conversion of amines to quaternary ammonium sites.

256 The conventional quaternary ammonium structure-directing agent, "Pippy",

257 d potency, and incorporation of a long-chain quaternary ammonium substituent on the 5-phenyl ring was

258 Oxidation of quaternary ammonium substrate, carnitine by non-heme iro

259 ng the detection of suspected compounds like quaternary ammonium surfactants, the biocide triclocarba

260 describe a bioreversible linkage based on a quaternary ammonium that can be used to connect a broad

261 Block was dependent on the size of the quaternary ammonium; the smaller tetramethylammonium blo

262 ionic drugs/five neutral steroids, and three quaternary ammonium/three neutral organophosphate pestic

263 pts a bent conformation characterized with a quaternary ammonium-to-carbonyl distance of 5.1 A.

264 sitive optodes based on an adsorbed layer of quaternary ammonium type anion exchanger and a phenolic

265 nts with functionalities such as betaine and quaternary ammonium was improved with the MeOH/NaOH base

266 Polymeric quaternary ammonium with three different alkyl chain len

267 Quaternary ammoniums with different numbers of methyl an

268 pends on a very selective orientation of the quaternary ammonium within the agonist binding site.