In situ Raman imaging of interdiffusion in a microchannel -: art. no. 094106

被引：78

作者：

Salmon, JB

Ajdari, A

Tabeling, P

Servant, L

Talaga, D

Joanicot, M

机构：

[1] ESPCI, CNRS, UMR 7083, F-75005 Paris, France

[2] Univ Bordeaux 1, Lab Physicochim Mol, F-33405 Talence, France

[3] CNRS Rhodia, LOF, F-33608 Pessac, France

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 09期

关键词：

D O I：

10.1063/1.1873050

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter presents an experimental setup to probe the interdiffusion of various miscible and nonreacting liquids. A Raman confocal microscope allows us to image the local concentrations of two coflowing liquids in a microchannel. These steady-state measurements provide precise quantitative information about the kinetics of the interdiffusion process. For all the pairs of fluids investigated, we found this process to follow a classical diffusive scaling law with a interdiffusion coefficient D that depends on both liquids. (C) 2005 American Institute of Physics.

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页码：1 / 3

页数：3

相关论文

共 12 条

[1] Mapping dynamic concentration profiles with micrometric resolution near an active microscopic surface by confocal resonance Raman microscopy. Application to diffusion near ultramicroelectrodes: first direct evidence for a conproportionation reaction [J].

Amatore, C ;

Bonhomme, F ;

Bruneel, JL ;

Servant, L ;

Thouin, L .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2000, 484 (01) :1-17

[2]

[Anonymous], 1945, INFRARED RAMAN SPECT

[3] Reaction-diffusion dynamics:: Confrontation between theory and experiment in a microfluidic reactor -: art. no. 060104 [J].

Baroud, CN ;

Okkels, F ;

Ménétrier, L ;

Tabeling, P .

PHYSICAL REVIEW E, 2003, 67 (06) :4

[4] Monitoring of chemical reactions within microreactors using an inverted Raman microscopic spectrometer [J].

Fletcher, PDI ;

Haswell, SJ ;

Zhang, XL .

ELECTROPHORESIS, 2003, 24 (18) :3239-3245

[5] Experimental and theoretical scaling laws for transverse diffusive broadening in two-phase laminar flows in microchannels [J].

Ismagilov, RF ;

Stroock, AD ;

Kenis, PJA ;

Whitesides, G ;

Stone, HA .

APPLIED PHYSICS LETTERS, 2000, 76 (17) :2376-2378

[6] Quantitative analysis of molecular interaction in a microfluidic channel: The T-sensor [J].

Kamholz, AE ;

Weigl, BH ;

Finlayson, BA ;

Yager, P .

ANALYTICAL CHEMISTRY, 1999, 71 (23) :5340-5347

[7] MOBILITY, INTERDIFFUSION, AND TRACER DIFFUSION IN LATTICE-GAS MODELS OF 2-COMPONENT ALLOYS [J].

KEHR, KW ;

BINDER, K ;

REULEIN, SM .

PHYSICAL REVIEW B, 1989, 39 (08) :4891-4910

[8] Applicability of laser-induced Raman microscopy for in situ monitoring of imine formation in a glass microfluidic chip [J].

Lee, M ;

Lee, JP ;

Rhee, H ;

Choo, J ;

Chai, YG ;

Lee, EK .

JOURNAL OF RAMAN SPECTROSCOPY, 2003, 34 (10) :737-742

[9] Laminar-flow fluid mixer for fast fluorescence kinetics studies [J].

Pabit, SA ;

Hagen, SJ .

BIOPHYSICAL JOURNAL, 2002, 83 (05) :2872-2878

[10] Time-resolved resonance Raman analysis of chromophore structural changes in the formation and decay of rhodopsin's BSI intermediate [J].

Pan, DH ;

Ganim, Z ;

Kim, JE ;

Verhoeven, MA ;

Lugtenburg, J ;

Mathies, RA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (17) :4857-4864