Publications by Abdeljalil Sayah

Understanding the mixing process in 3D microfluidic nozzle/diffuser systems: simulations and experiments

We characterise computationally and experimentally a three-dimensional (3D) microfluidic passive mixer for various Reynolds numbers ranging from 1 to 100, corresponding to primary flow rates of 10-870 mu l min(-1). The 3D mixing channel is composed of mult ...

Iop Publishing Ltd2016

Self-assembled melamine microlens arrays for immunofluorescence enhancement

Abdeljalil Sayah, Martinus Gijs, Hüseyin Cumhur Tekin, Hui Yang

Self-assembled dielectric microlenses are used for focusing of the fluorescent signal emitted from a surface-based immunoassay, performed on silane micropatterns as assay substrates, to enhance the detection signal. In our model system, a fluorescent immun ...

2013

Chaotic mixing using source-sink microfluidic flows in a PDMS chip

Abdeljalil Sayah, Martinus Gijs, Caroline Vandevyver, Venkataragavalu Sivagnanam, Hüseyin Cumhur Tekin, Ata Tuna Ciftlik

We present an active fixed-volume mixer based on the creation of multiple source–sink microfluidic flows in a polydimethylsiloxane (PDMS) chip without the need of external or internal pumps. To do so, four different pressure-controlled actuation chambers a ...

Springer-Verlag2011

Fabrication of microfluidic mixers with varying topography in glass using the powder blasting process

Abdeljalil Sayah, Martinus Gijs, Virendra Kumar Parashar

The powder-blasting method is used to fabricate structures with a three-dimensional topography in glass using elastomeric masks. The relation between the mask opening width and the erosion depth is exploited to fabricate microstructures with varying depth ...

2009

Lab-on-a-chip for label-free multi-detection of residual antibiotics in milk

Yves Leterrier, Abdeljalil Sayah

2008

Lab-on-a-chip for label-free multidetection of residual antibiotics in milk

Yves Leterrier, Abdeljalil Sayah, Guillaume Suarez

2008

Lab-on-a-chip for label-free multi-detection of residual antibiotics in milk

Yves Leterrier, Abdeljalil Sayah, Guillaume Suarez

2008

Integrated System for the Parallel Detection of Multiple Antibiotics in Milk

Yves Leterrier, Abdeljalil Sayah, Valérie Geiser, Simon Pasche

2008

Micropatterning of protein-functionalized magnetic beads on glass using electrostatic self-assembly

Abdeljalil Sayah, Martinus Gijs, Caroline Vandevyver, Venkataragavalu Sivagnanam

We demonstrate a simple and fast method for self-assembly-driven micropatterning of protein functionalized magnetic beads on glass. We use positively charged aminosilane micro-patterns as template for selective immobilization of streptavidin-coated beads b ...

2008

Automated label-free optical sensor for multi-antibiotics detection in milk

Yves Leterrier, Abdeljalil Sayah

2008

Bead-based single protein micro-array realized through electrostatic self-assembly of carboxylated beads

Abdeljalil Sayah, Martinus Gijs, Venkataragavalu Sivagnanam

We report here a simple method, based on electrostatic self-assembly, for realizing bead-based single protein micro-arrays. We generate positively charged surface micro-patterns on a glass substrate and use them as template for adsorbing negatively-charged ...

2008

Borosilicate nanoparticles prepared by exothermic phase separation

Abdeljalil Sayah, Martinus Gijs, Virendra Kumar Parashar, Jean-Baptiste Robert Orhan

2008

Micropatterning of Streptavidin-Functionalized Magnetic Beads on Glass Using Electrostatic Self-Assembly

Abdeljalil Sayah, Martinus Gijs, Caroline Vandevyver, Venkataragavalu Sivagnanam

2007

Bead-based protein microarrays realized through electrostatic self-assembly of carboxylated beads

Abdeljalil Sayah, Martinus Gijs, Venkataragavalu Sivagnanam

We report here a simple method, based on electrostatic self-assembly, for realizing bead-based single protein microarrays. We generate positively-charged surface micro-patterns on a glass substrate and used them as the template for adsorbing negatively-cha ...

2007

Ultra-Thick Optical Components Using LF55GN Photosensitive Flexopolymer

Abdeljalil Sayah, Martinus Gijs, Virendra Kumar Parashar

2007

Ultra-thick micro-optical components using the PRISM photosensitive flexopolymer

Abdeljalil Sayah, Martinus Gijs, Virendra Kumar Parashar, Venkataragavalu Sivagnanam

We present the photosensitive flexopolymer PRISM as a new promising material for the realization of thick optical components. The PRISM flexopolymer can be directly polymerized using conventional UV exposure and is simply developed in a water-based solutio ...

2007

LF55GN photosensitive flexopolymer: a new material for ultra-thick and high aspect-ratio MEMS fabrication

Abdeljalil Sayah, Martinus Gijs, Virendra Kumar Parashar

Institute of Electrical and Electronics Engineers2007

Micropatterning of streptavidin-coated magnetic microbeads in-situ in a microfluidic channel using electrostatic self-assembly

Abdeljalil Sayah, Martinus Gijs, Venkataragavalu Sivagnanam, Hüseyin Cumhur Tekin

2007

LF55GN Photosensitive Flexopolymer as a New Material for Ultra-Thick and High-Aspect-Ratio MEMS Fabrication

Abdeljalil Sayah, Martinus Gijs, Virendra Kumar Parashar

2007

Reactive oxide micro-molding of thick lenses containing diffractive optical elements

Abdeljalil Sayah, Martinus Gijs, Virendra Kumar Parashar, Jean-Baptiste Robert Orhan

2006