Fabrication and characterization of a vertical lamination micromixer for mid-IR spectroscopy

Buchegger, Wolfgang; Wagner, Christoph; Svasek, P.; Lendl, Bernhard; Kraft, Martin; Vellekoop, Michael J.

doi:10.1016/j.snb.2011.06.083

Cited by 12 publications

(10 citation statements)

References 19 publications

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“…1, device details are presented in Ref. 23. Initially, this design was developed for time resolved Fourier-transform infrared (FTIR) measurements.…”

Section: Methodsmentioning

confidence: 99%

Studying enzymatic bioreactions in a millisecond microfluidic flow mixer

et al. 2012

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In this study, the pre-steady state development of enzymatic bioreactions using a microfluidic mixer is presented. To follow such reactions fast mixing of reagents (enzyme and substrate) is crucial. By using a highly efficient passive micromixer based on multilaminar flow, mixing times in the low millisecond range are reached. Four lamination layers in a shallow channel reduce the diffusion lengths to a few micrometers only, enabling very fast mixing. This was proven by confocal fluorescence measurements in the channel's cross sectional area. Adjusting the overall flow rate in the 200 lm wide and 900 lm long mixing and observation channel makes it possible to investigate enzyme reactions over several seconds. Further, the device enables changing the enzyme/substrate ratio from 1:1 up to 3:1, while still providing high mixing efficiency, as shown for the enzymatic hydrolysis using b-galactosidase. This way, the early kinetics of the enzyme reaction at multiple enzyme/substrate concentrations can be collected in a very short time (minutes). The fast and easy handling of the mixing device makes it a very powerful and convenient instrument for millisecond temporal analysis of bioreactions.

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“…1, device details are presented in Ref. 23. Initially, this design was developed for time resolved Fourier-transform infrared (FTIR) measurements.…”

Section: Methodsmentioning

confidence: 99%

Studying enzymatic bioreactions in a millisecond microfluidic flow mixer

et al. 2012

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“…The ability to monitor such subtle effects as the displacement of minute quantities of water molecules further highlights the level of information that can be obtained on trace samples via PIR measurements [35]. Finally, the chip based platform enables a dramatic and transformative advancement in the compatibility of infrared absorption spectroscopy with modern sample preparation and handling technologies (such as microfluidics [87], optical trapping [88,89] and rapid scanning), as well as complementary optical measurement [90][91][92] techniques.…”

Section: Mid-ir Nanoantennas For Seira Spectroscopymentioning

confidence: 99%

Engineering mid-infrared nanoantennas for surface enhanced infrared absorption spectroscopy

2015

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Mid-infrared absorption spectroscopy is a powerful tool for optically probing the molecular structure of biological samples. However, using conventional approaches, IR measurements on small quantities of molecules are extremely challenging due to sensitivity limitations. The strong IR absorption of liquid water presents additional obstacles to performing measurements in biomolecules' native, aqueous environments. In this review we discuss the application of engineered plasmonic nanoantennas to overcoming these challenges. We provide overviews and highlight the key concepts of our recent work in designing infrared antennas and applying them to enhance the absorption of minute quantities of biomolecules as well as new fabrication methods for their high throughput and low-cost manufacturing.

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“…The add-on is controlled by resin viscosity, the mesh of the cylindrical screen; the speed and the pressure of the squeegee bar inside the screen .An array of dots are pushed through the perforated screen by the squeegee bar inside the screen and by centrifugal force onto the fabric. The fabric moves at the same speed as the rotation of the rotary screen and there is, thus, no frictional contact between the two [22]. When deposited on to the fabric, the resin in the dots flows and merges together to form a continuous coating.…”

Section: Rotary Screen Coatingmentioning

confidence: 99%

“…Continuous Lamination (On-/ Offline) [20][21][22][23][24] Discontinuous Lamination (Definite-Length) […”

Section: Table 4 Comparison Between the Continuous And Discontinuousmentioning

confidence: 99%

A Review on Coating & Lamination in Textiles: Processes and Applications

Singha¹

2012

AJPS

110

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Coating and lamination are two functional processes which are used make a proper finishing to the textile material. The coating formulation with different textile grade polymer like PVC, PU, acrylic, PTFE are hugely used to make a textile product with multipurpose way like-waterproof protective clothing, tarpaulin, protective clothing, electrical insulation etc. on the other hand lamination process is used to prepare some important textile products with daily uses in our practical life like-blackout curtains and blinds, and c. In this current work is related to details of lamination theory, various processes, formulations, application, recent developments of the coating and lamination in the textile field.

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Fabrication and characterization of a vertical lamination micromixer for mid-IR spectroscopy

Cited by 12 publications

References 19 publications

Studying enzymatic bioreactions in a millisecond microfluidic flow mixer

Studying enzymatic bioreactions in a millisecond microfluidic flow mixer

Engineering mid-infrared nanoantennas for surface enhanced infrared absorption spectroscopy

A Review on Coating & Lamination in Textiles: Processes and Applications

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