ライフサイエンスコーパス: electroosmotic

1 ich a hydrodynamic pressure is added to both electroosmotic and electrophoretic contributions is prop

2 hin a sample well generated through combined electroosmotic and hydrodynamic flows.

3 e have observed in sinusoidally oscillating, electroosmotic channel flows.

4 The electroosmotic component was distinguished from the diff

5 carbon nanotube demonstrates oscillations in electroosmotic current through its interior at specific

6 r capillary isoelectric focusing (CIEF) with electroosmotic displacement.

7 single fitting parameter for each molecule (electroosmotic drag coefficient).

8 certain advantages over designs that utilize electroosmotic driven flow has been fabricated and teste

9 closer to the high pH (cathode) end when the electroosmotic effect dominates.

10 smotic permeability for water as well as its electroosmotic effect, and characterized the permeabilit

11 constants for betaCD were consistent with an electroosmotic effect.

12 this pipettor consists of a microfabricated electroosmotic (EO) flow pump, a polyacrylamide groundin

13 The surface chemistry and electroosmotic (EO) mobility of polymer microchannels la

14 We also compare the performance of our electroosmotic (EO)-driven HPLC with Agilent 1200 HPLC;

15 uidic chips using soft lithography, unstable electroosmotic flow (EOF) and cathodic drift are signifi

16 (ethylene glycol) diacrylate (PEGDA) induced electroosmotic flow (EOF) and increased the separation t

17 Measurements of electroosmotic flow (EOF) and separation efficiency duri

18 ative standard deviation (RSD) values of the electroosmotic flow (EOF) and the first peak ((R)-(+)-BN

19 the DNA translocation relies on the induced electroosmotic flow (EOF) and the particle-nanopore elec

20 electrophoretic velocity is balanced by the electroosmotic flow (EOF) and where the sample concentra

21 port an experimental investigation of radial electroosmotic flow (EOF) as an effective means for cont

22 acking and can produce a strong and constant electroosmotic flow (EOF) at low pH.

23 at pH 9.0 for the two analytes, although the electroosmotic flow (EOF) at pH 9.0 provides sufficient

24 high as 5000 fold with an original symmetric electroosmotic flow (EOF) condition.

25 Electroosmotic flow (EOF) for adsorbent and exchanger pa

26 The annular electroosmotic flow (EOF) generated by the PEI coating a

27 It is shown that electroosmotic flow (EOF) has much more influence on the

28 e have successfully measured the risetime of electroosmotic flow (EOF) in a microcapillary using rece

29 The electroosmotic flow (EOF) in a poly(dimethylsiloxane) (P

30 eby providing the relatively strong reversed electroosmotic flow (EOF) in capillary electrochromatogr

31 e the extent of intraparticle, or perfusive, electroosmotic flow (EOF) in CEC capillaries packed with

32 k is an analytical and experimental study of electroosmotic flow (EOF) in cylindrical capillaries wit

33 In comparison to glass microchannels, electroosmotic flow (EOF) in native PC channels is low a

34 pillary surface responsible for the reversed electroosmotic flow (EOF) in the columns during CEC oper

35 Electroosmotic flow (EOF) is commonly utilized in microf

36 Electroosmotic flow (EOF) is induced as the driving forc

37 A reduction in the electroosmotic flow (EOF) is often desirable in glass mi

38 Electroosmotic flow (EOF) is used to enhance the deliver

39 was performed with the use of thiourea as an electroosmotic flow (EOF) marker.

40 with DNA electrophoresis where a substantial electroosmotic flow (EOF) may be detrimental to the sepa

41 Electroosmotic flow (EOF) measurements in modified and u

42 Electroosmotic flow (EOF) or electro-osmosis has been sh

43 n the electric field eliminated the need for electroosmotic flow (EOF) or hydrodynamic flow for dropl

44 A flow-based interface that uses electroosmotic flow (EOF) provides continuous injection

45 strate here a new electrokinetic phenomenon, Electroosmotic flow (EOF) rectification, in synthetic me

46 Native TPE microchannels support electroosmotic flow (EOF) toward the cathode, with an av

47 responding opposition of electrophoretic and electroosmotic flow (EOF) velocities.

48 Electroosmotic flow (EOF) was driven across the CNMs by

49 Electroosmotic flow (EOF) was monitored in glass microfl

50 e channels to control analyte adsorption and electroosmotic flow (EOF) while maintaining separation e

51 fords monolithic CEC columns that facilitate electroosmotic flow (EOF) while preventing ionized analy

52 dynamic coating method that provided stable electroosmotic flow (EOF) with respect to pH.

53 Electroosmotic flow (EOF) with two or more fluids is oft

54 Electroosmotic flow (EOF) within channels was used to de

55 ethanol (NPE), which is only transported by electroosmotic flow (EOF), a positive correlation betwee

56 e microchannel walls enables reversal of the electroosmotic flow (EOF), enabling cations, instead of

57 reason for this asymmetry, we identified the electroosmotic flow (EOF), which is the water transport

58 An electroosmotic flow (EOF)-based pump, integrated with a

59 ization methods: chemical, hydrodynamic, and electroosmotic flow (EOF)-driven mobilization.

60 e to suppress analyte adsorption and control electroosmotic flow (EOF).

61 and the ability to control the magnitude of electroosmotic flow (EOF).

62 reagents were transported into the system by electroosmotic flow (EOF).

63 Flow through these filters was driven by electroosmotic flow (EOF).

64 d and overcome by the shear force induced by electroosmotic flow (EOF, i.e. the water flow over surfa

65 urfactants on PDMS was studied by performing electroosmotic flow (microEOF) measurements.

66 ppears to require a dilute polymer solution, electroosmotic flow (preferably countercurrent to the di

67 the SDS micelles velocity is faster than the electroosmotic flow (using acidic buffer), MCDS was cond

68 eld acting on their charge and (ii) the bulk electroosmotic flow (which is directed toward the cathod

69 Injecting neutral analytes by electroosmotic flow affords a 10-fold or greater decreas

70 rt of charged species in pressure-driven and electroosmotic flow along nanoscale channels having an e

71 On the negative side, nonuniform electroosmotic flow along the capillary or microfluidic

72 rescent molecules through the tissue by both electroosmotic flow and electrophoresis.

73 ects of increasing the sample plug length on electroosmotic flow and electrophoretic current agreed q

74 allows us to work under conditions in which electroosmotic flow and electrophoretic forces add or op

75 uded poly(vinylpyrrolidone) to eliminate the electroosmotic flow and mannitol to enhance the separati

76 The perfusate was continuously sampled by electroosmotic flow and mixed online with Cy5-labeled in

77 ied surfaces exhibited substantially reduced electroosmotic flow and nonspecific adsorption of protei

78 st time the independent optimization of both electroosmotic flow and retention properties in CEC colu

79 ify and distinguish the contributions of the electroosmotic flow and the electrophoretic force on tra

80 ns describing the generation of vorticity in electroosmotic flow are derived using a wall-local, stre

81 capillary-to-capillary reproducibilities of electroosmotic flow are very good with relative standard

82 lish a pH gradient as well as to control the electroosmotic flow arising from the use of uncoated fus

83 rthermore, application of UV modification to electroosmotic flow around a 90 degrees turn results in

84 needed to flush the PPMs since they support electroosmotic flow as cast.

85 urb the capillary electrophoresis separation electroosmotic flow as evidenced by the observation that

86 (2) The electroosmotic flow at reversed polarity (negative) mode

87 capillary, with neutral analytes injected by electroosmotic flow at up to 1 order of magnitude faster

88 Electroosmotic flow between interdigitated electrodes wa

89 with an electric field prediction, to obtain electroosmotic flow bulk fluid velocity measurements.

90 Analytes are injected at the velocity of electroosmotic flow but are retained at the interface of

91 chain and mixed PEG-silane coatings suppress electroosmotic flow by more than 90%, whereas the short-

92 ty of the polymers, and the direction of the electroosmotic flow can be altered without degrading chr

93 n optical force was applied to an orthogonal electroosmotic flow carrying a hydrodynamically pinched,

94 Electroosmotic flow changes on the order of 100% (1.6-3.

95 The reversed electroosmotic flow could be explained by slower depleti

96 ography, neutral analytes can be injected by electroosmotic flow directly from a sample matrix into a

97 cal description of band broadening caused by electroosmotic flow dispersion (EOFD) and the experiment

98 external electric field, creating nonuniform electroosmotic flow distributions.

99 This research proposes a point-of-care electroosmotic flow driven microfluidic device for rapid

100 Changes in electroosmotic flow during sample stacking and separatio

101 Electroosmotic flow dynamics during a field-amplified sa

102 article velocity due to convection driven by electroosmotic flow exceeded that of electrophoresis at

103 the temperature increase in the presence of electroosmotic flow for a 100-, 200-, and 300-microm cha

104 ngle zone (peak) which is separated from the electroosmotic flow front and any other interfering mole

105 Electroosmotic flow further modulates the local field gr

106 Electroosmotic flow has been monitored in a capillary us

107 The CE separation was performed at near-zero electroosmotic flow in a capillary with neutral, hydroph

108 onitoring technique for measuring an average electroosmotic flow in a microfluidic device with a cros

109 ocity, and late-time solute distribution for electroosmotic flow in a tube and channel at zeta potent

110 It is found that the electroosmotic flow in aminated PMMA microchannels is re

111 formamide, which has been shown to diminish electroosmotic flow in glass microchannels by over 5 ord

112 trated by our laboratory to nearly eliminate electroosmotic flow in glass microchannels was employed

113 redictability and constancy over time of the electroosmotic flow in microchannels is an important con

114 Protocols are described for control of the electroosmotic flow in microfabricated channels in Vivak

115 ar, this study investigates perturbations of electroosmotic flow in open capillaries that are due to

116 We have characterized electroosmotic flow in plastic microchannels using video

117 In this paper, the Taylor dispersion due to electroosmotic flow in such a partially coated capillary

118 In addition, electroosmotic flow in the device plays a critical role

119 orescence detector, to determine the rate of electroosmotic flow in the entire capillary.

120 dsorption of the virus capsids, and suppress electroosmotic flow in the pore.

121 ith peptides and proteins and to reverse the electroosmotic flow in the separation channel.

122 ld resulting from the iontophoretic current, electroosmotic flow in the tissue would carry solutes co

123 The electroosmotic flow increased from 4.1 x 10(-4) to 6.8 x

124 Rectification of ion current and electroosmotic flow increased with increasing electric f

125 obtained for peak height and peak area with electroosmotic flow injection is comparable to that obta

126 netic stacking of neutral analytes utilizing electroosmotic flow is demonstrated with discontinuous (

127 Electroosmotic flow is fluid motion driven by an electri

128 sfer across the pore/solution interface when electroosmotic flow is operative.

129 Simple dimensional arguments show that electroosmotic flow is potentially as important as diffu

130 Suppression of electroosmotic flow is proposed as a means of reducing m

131 Moreover, these findings suggest that electroosmotic flow is significant for particle transpor

132 of separation selectivity and the normalized electroosmotic flow mobility.

133 t disk UMEs in low ionic strength solutions, electroosmotic flow occurring at the glass insulation of

134 ution velocity to elucidate the influence of electroosmotic flow on transport of bacteria near the el

135 Manipulation of the electroosmotic flow opens the door to hydrodynamic modul

136 Ultrathin pnc-Si membranes enable high electroosmotic flow per unit voltage.

137 A mismatch in the electroosmotic flow rate at this junction led to the gen

138 icrostructure of the rough microchannel, the electroosmotic flow rate decreases with the Debye length

139 The electroosmotic flow rate increases with the roughness nu

140 e number density of roughness are given, the electroosmotic flow rate is enhanced by the increase of

141 tection, while simultaneously monitoring the electroosmotic flow rate.

142 ionally in such systems due to a mismatch in electroosmotic flow rates or hydrostatic pressure differ

143 oxidation or silanization, can influence the electroosmotic flow rates through pnc-Si membranes by al

144 age-biased OmpF nanopore is dominated by the electroosmotic flow rather than the electrophoretic forc

145 cation by current-voltage (I-V) response and electroosmotic flow rectification by transport of a zwit

146 not only ion current rectification but also electroosmotic flow rectification.

147 In all cases, however, electroosmotic flow resulted in significantly less sampl

148 We propose that this is due to electroosmotic flow separation, a high-salt electrokinet

149 In the symmetric case for the electroosmotic flow so induced, the velocity field and t

150 ion exchange beads, which produce convergent electroosmotic flow streams.

151 ingle-column ITP configuration together with electroosmotic flow suppression and high leading ion con

152 of dynamic wall coatings for the purpose of electroosmotic flow suppression can have a significant i

153 d performance associated with the use of the electroosmotic flow switching system in a point-of-care

154 otypic hippocampal slice cultures (OHSCs) by electroosmotic flow through an 11 cm (length) x 50 mum (

155 surface charge, we can control the amount of electroosmotic flow through the nanopore, which affects

156 The experimental inquiry focuses on electroosmotic flow under a uniform applied field in cap

157 ontrol (FEFC) modifies the zeta potential of electroosmotic flow using a transverse electric field ap

158 be easily modified to control inertness and electroosmotic flow using a variety of chemical procedur

159 detail the means of achieving bidirectional electroosmotic flow using an array of alternating curren

160 provides a mechanism for fine tuning of the electroosmotic flow velocity when 2-acrylamido-2-methyl-

161 xhibits a lower ion conductance and a higher electroosmotic flow velocity, whereas, in the tip-to-bas

162 o cause a small, but definite, change in the electroosmotic flow velocity.

163 nel has a higher ion conductance and a lower electroosmotic flow velocity.

164 ermined by several parameters, including the electroosmotic flow velocity.

165 interplay of concentration polarization and electroosmotic flow with respect to the observed concent

166 By using high concentrations of buffer, electroosmotic flow within uncoated channels of a microf

167 e control, adjustment, and modulation of the electroosmotic flow without using wall coatings or chang

168 or zone narrowing to occur assume negligible electroosmotic flow, a relatively constant electric fiel

169 the solvent used to cast the polymer enables electroosmotic flow, allowing the separation channel to

170 Electroosmotic flow, and the resulting transport of neur

171 f the applied potential and the direction of electroosmotic flow, either anions or cations can be con

172 expensive, and, in addition to reversing the electroosmotic flow, provides excellent separation effic

173 pillary electrophoretic buffer modulated the electroosmotic flow, resulting in optimum separation of

174 Our model yields analytical expressions for electroosmotic flow, species transport velocity, streamw

175 horesis channel and a portion is injected by electroosmotic flow, termed the "discrete injector".

176 ause of the simplicity and rapid response of electroosmotic flow, this technique may be useful for ne

177 ularly the high voltage used for driving the electroosmotic flow, upon the background current, potent

178 ged and neutral glycans, such as influencing electroosmotic flow, using complexation/interaction base

179 f 0.5% v/v, which effectively suppresses the electroosmotic flow, was added to the background electro

180 As the effect occurs within an oscillating electroosmotic flow, we refer to it here as an electroki

181 Through simulations, we found that reversed electroosmotic flow, which filled the pore with aqueous

182 nique in which the mobile phase is driven by electroosmotic flow, while the sorbent layer is pressuri

183 The mobile phase is driven by electroosmotic flow, while the system is pressurized in

184 pike-shaped transients was convection due to electroosmotic flow.

185 a second via a low-voltage pulse that drives electroosmotic flow.

186 s experienced transport by convection due to electroosmotic flow.

187 cies are driven along them in the absence of electroosmotic flow.

188 e relative standard deviations (RSDs) of the electroosmotic flow.

189 d mixing of two confluent streams undergoing electroosmotic flow.

190 d the outlet end) by hydrodynamic flow or by electroosmotic flow.

191 for species transport by electrophoresis or electroosmotic flow.

192 ss the pore under different biases caused by electroosmotic flow.

193 fficiency from the flow profile generated by electroosmotic flow.

194 ODS columns are characterized by switchable electroosmotic flow.

195 sity, and self-coating property for reducing electroosmotic flow.

196 of a 100-pL mixer for liquids transported by electroosmotic flow.

197 olarities and the capabilities of a reversed electroosmotic flow.

198 ethylammonium hydroxide, for reversal of the electroosmotic flow.

199 oupling to all other mobile ions, causing an electroosmotic flow.

200 mobilities of free protein, free ligand, and electroosmotic flow.

201 ly affected the elution times by varying the electroosmotic flow.

202 with a neutral coating exhibiting near-zero electroosmotic flow.

203 The use of acidic ES suppressed the electroosmotic flow; allowing the electrokinetic movemen

204 between the electric and velocity fields in electroosmotic flows are discussed.

205 flows, the bulk flow region of time periodic electroosmotic flows are rotational when the diffusion l

206 sional, time-independent, and time-dependent electroosmotic flows driven by a uniform electric field

207 In contrast, electroosmotic flows generally yield identical speeds fo

208 Analytical solutions of time periodic electroosmotic flows in two-dimensional straight channel

209 us drag forces on deflecting microtubules in electroosmotic flows were studied theoretically and expe

210 t is also shown that, unlike the steady pure electroosmotic flows, the bulk flow region of time perio

211 ence plays an important role in microchannel electroosmotic flows.

212 trolyte concentrations induce convection via electroosmotic flows.

213 ssure on the velocity and vorticity field of electroosmotic flows.

214 mide (CTAB) is shown to provide reproducible electroosmotic flows.

215 the presence of H2O2 is capable of inducing electroosmotic fluid flow that can be switched on and of

216 charges in the extracellular space to create electroosmotic fluid flow within the extracellular space

217 The electroosmotic fluid velocity is used to analyze late-ti

218 t first reported by Anderson and Idol on the electroosmotic flux in capillaries with axial variations

219 position of streptavidin in electrophoretic-electroosmotic focusing (EEF) experiments was monitored

220 An electrophoretic-electroosmotic focusing (EEF) method was developed and u

221 fluid velocity through the pore at constant electroosmotic force is determined by fitting the theore

222 rge at salt concentrations below 5 mM, where electroosmotic forces are more significant.

223 EEF uses opposing electrophoretic and electroosmotic forces to focus and separate proteins and

224 proteins, responding to electrophoretic and electroosmotic forces, have long been proposed as the se

225 ions are due to the sum of iontophoretic and electroosmotic forces.

226 ated in the capillary by electrophoretic and electroosmotic forces.

227 Electroosmotic manipulation of fluids was demonstrated u

228 Initial electroosmotic mobilities (EOM) of (8.3+/-0.2)x10(-4) cm

229 rits are formed in open capillaries, and the electroosmotic mobilities are calculated and compared to

230 The experimental electroosmotic mobilities compare quantitatively to mobi

231 confinement within the channels, the average electroosmotic mobilities decrease.

232 We measured electroosmotic mobilities in NaCl solutions from 0.1 to

233 We report the measurement of electroosmotic mobilities in nanofluidic channels with r

234 At kappah approximately 4, the electroosmotic mobilities in the 27, 54, and 108 nm chan

235 he Smoluchowski equation accurately predicts electroosmotic mobilities in the nanochannels.

236 icrochannels with grafted surfaces exhibited electroosmotic mobilities intermediate to those displaye

237 The differential electroosmotic mobilities of the enzyme and substrate, L

238 ied with PEMs, they demonstrate very similar electroosmotic mobilities.

239 d separations and exhibited little change in electroosmotic mobility between pH 2.8 and pH 7.5.

240 site-binding model, we demonstrated that the electroosmotic mobility could be controlled qualitativel

241 measurement of the separation efficiency and electroosmotic mobility for multiple microfluidic device

242 e experimental observations of (i) a maximum electroosmotic mobility for the first scenario as the pH

243 (ii) the inversion and maximum value of the electroosmotic mobility for the second scenario when the

244 ed with 0.5 wt % undecylenic acid (UDA), the electroosmotic mobility in a modified PDMS channel rises

245 We report on measurements of electroosmotic mobility in polymer microchannels and sil

246 hannel (kappah = 1) is 5-fold lower than the electroosmotic mobility in the 2.5 mum channel (kappah =

247 nels exhibit maxima, and at 0.1 mM NaCl, the electroosmotic mobility in the 27 nm channel (kappah = 1

248 s for controlling the flow direction and the electroosmotic mobility in the channels.

249 ciprocal of the solvent viscosity, while the electroosmotic mobility increases in a linear fashion wi

250 lution rely on either streaming potential or electroosmotic mobility measurement techniques, both of

251 l with a dynamic coating of DDM generates an electroosmotic mobility of (5.01 +/- 0.09) x 10(-4) cm(2

252 ow (EOF) toward the cathode, with an average electroosmotic mobility of 1.3 x 10(-4) cm(2) V(-1) s(-1

253 laries treated with this coating produced an electroosmotic mobility of 2.8 +/- 0.2 x 10(-6) cm(2).V(

254 Unlike the electroosmotic mobility of oxidized PDMS, the electroosm

255 lectroosmotic mobility of oxidized PDMS, the electroosmotic mobility of the grafted surfaces remained

256 ctrophoresis, it is important to control the electroosmotic mobility of the running buffer and the fa

257 The very low electroosmotic mobility results in a 200 min separation

258 The general equation to predict the electroosmotic mobility suggested here also indicates th

259 The electroosmotic mobility was stable in response to air ex

260 uggested here also indicates the increase of electroosmotic mobility with temperature.

261 It is shown that the electroosmotic mobility, induced by an electric field ap

262 gate species transport by electrophoretic or electroosmotic motion in the curved geometry of a two-di

263 substrate or substrate plus inhibitor using electroosmotic perfusion (EOP).

264 e have developed an approach that integrates electroosmotic perfusion of tissue with a substrate-cont

265 The electroosmotic perfusion-microdialysis probe and associa

266 s and define three new concepts based on the electroosmotic potential distribution.

267 t, wall shear stress, and vorticity in mixed electroosmotic/pressure driven flows are presented for t

268 sign allows for the production of a fritless electroosmotic pump and easy replacement of the ion exch

269 Moreover, the electroosmotic pump can generate high flow rates over an

270 Here, we construct an open-channel on-chip electroosmotic pump capable of generating pressures up t

271 An electroosmotic pump is incorporated at the end of the el

272 A fritless electroosmotic pump with reduced pH dependence has been

273 d with polyacrylamide for the elimination of electroosmotic pumping and protein adsorption onto the c

274 A multichannel architecture that uses electroosmotic pumping principles provides the necessary

275 The micropump, based on electroosmotic pumping principles, has a multiple open-c

276 The different electroosmotic pumping rates formed by local zeta potent

277 w splitting, capillary electrophoresis (CE), electroosmotic pumping, and electrospray ionization (ESI

278 y in a wide range of applications, including electroosmotic pumping, liquid chromatographic separatio

279 er capillary and samples were transferred by electroosmotic pumping.

280 We have developed electroosmotic pumps (EOPs) fabricated from 15-nm-thick

281 Electroosmotic pumps are arguably the simplest of all pu

282 ificant advantage over previously fabricated electroosmotic pumps, which typically have a more limite

283 ing chromatography columns, micromixers, and electroosmotic pumps.

284 Electroosmotic sampling is a potentially powerful method

285 approach is to define conditions under which electroosmotic sampling minimizes damage to the tissue,

286 ltz-Smoluchowski velocity is the appropriate electroosmotic slip condition even for high-frequency ex

287 The effect of this electroosmotic solvent flow on the binding of a neutral

288 meabilization sites, and electrophoretic and electroosmotic transport by the electric pulses.

289 Electroosmotic transport of ascorbate occurred at a negl

290 t short distances (<100 mum), advection from electroosmotic transport of the barrel solution may sign

291 gh nanofunnels, which suggest the asymmetric electroosmotic transport stems from an induced pressure

292 dimensional simulations of ion transport and electroosmotic transport through nanofunnels, which sugg

293 The efficiency of electroosmotic transport was also shown to be a function

294 gher than the run buffer conductivities, the electroosmotic velocities are such that there is less fl

295 near the IDZ when their electrophoretic and electroosmotic velocities balance.

296 These results suggest that electroosmotic velocities of solute molecules are determ

297 We quantitatively describe the electroosmotic velocity component experienced by the sub

298 The electroosmotic velocity of the neutral molecule, acetami

299 order unity, based on channel depth and rms electroosmotic velocity.

300 First, we measure the electroosmotic wall mobility of a borosilicate rectangul