Browsing by Keywords "Microfluidics"
Now showing items 1-20 of 52
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3D modeling of on-chip acoustophoretic particle manipulation in a polymer microfluidic device
(Chemical and Biological Microsystems Society, 2016)This study focuses on understanding of the sensitivities of the acoustophoretic process on uncertainties/errors in the geometric properties of the chip material and the piezoelectric actuators. The sensitivity of the ... -
3D printed microfluidic reactor for high throuhput chitosan nanoparticle synthesis
(Chemical and Biological Microsystems Society, 2016)The major bottleneck for the commercialization of nanoparticle related technologies is the mass production of the nanoparticles. One approach to overcome this bottleneck is use of microfluidic devices. In this paper, a 3D ... -
Boundary element method for optical force calibration in microfluidic dual-beam optical trap
(SPIE, 2015)The potential use of optical forces in microfluidic environment enables highly selective bio-particle manipulation. Manipulation could be accomplished via trapping or pushing a particle due to optical field. Empirical ... -
Chitosan coated iron-oxide nanoparticle synthesis using a droplet based microfluidic reactor
(IEEE, 2019-06)A microfluidic reactor for the synthesis of chitosan coated iron-oxide nanoparticles is described. Tapered double T-junction is used to generate droplets of reactants (iron chloride solution and chitosan solution) which ... -
CO2 laser polishing of microfluidic channels fabricated by femtosecond laser assisted carving
(Institute of Physics Publishing, 2016-10)In this study, we investigate the effects of CO2 laser polishing on microscopic structures fabricated by femtosecond laser assisted carving (FLAC). FLAC is the peripheral laser irradiation of 2.5D structures suitable for ... -
Continuous triboelectric power harvesting and biochemical sensing inside poly(vinylidene fluoride) hollow fibers using microfluidic droplet generation
(Wiley-Blackwell, 2016-11)Triboelectric power harvesting and biochemical sensing inside poly(vinylidene fluoride) hollow fibers. Fiber‐based microfluidic energy harvesting system, which is also utilized as self‐powered chemical and biosensor. In ... -
Damping hydrodynamic fluctuations in microfluidic systems
(Elsevier, 2018)In this article, we report a method to damp microfluidic hydrodynamic fluctuations caused by flow sources. We demonstrate that compliance of elastomeric off-chip tubings can be used to damp fluctuations and lead to steady ... -
Design of a droplet based microfluidic reactor to synthesize chitosan coated iron oxide nanoparticles
(Bilkent University, 2019-07)Nanoparticles possess unique structural, mechanical, thermal, optical and chemical properties which are highly dependent on their size; therefore it is important to be able to synthesize them uniformly. In general they ... -
Design of a high-resolution microfluidic microwave MEMS phase shifter
(Wiley, 2011)In this article, a novel microwave microelectromechanical phase shifter based on a microfluidic design is proposed and demonstrated. The design principles, the fabrication process, and experimental results (S-parameters ... -
Dielectrophoresis in microfluidics technology
(2011)Dielectrophoresis (DEP) is the movement of a particle in a non-uniform electric field due to the interaction of the particle's dipole and spatial gradient of the electric field. DEP is a subtle solution to manipulate ... -
Digital microfluidics for reconfigurable antennas
(IEEE, 2014)Usage of fluids (microfluidic or otherwise) in antennas provides a conceptually easy reconfiguration mechanism in the aspect of physical alteration. However, a requirement of pumps, valves, etc. for liquid transportation ... -
A droplet-based microfluidic reactor for silica nanoparticle synthesis and post processing of quantum dots
(Bilkent University, 2017-08)The unique properties of nanoparticles mainly depend on their size and morphology; thus, it is of the utmost importance to synthesize them monodispersely to be useful in an application. Micro uidic reactors enable a ... -
Droplet-based microfluidic systems for silica coating and synthesis of conjugated polymer nanoparticles
(Bilkent University, 2015-07)Nanoparticles have unique electronic, optic and magnetic properties due to their large area to volume ratio. In order for them to preserve their properties for longer times, some of them need to be coated with a protective ... -
Fabrication and characterization of liquid metal-based micro-electromechanical DC-contact switch for RF applications
(CRC Press, 2012)We demonstrate that room-temperature liquid metal alloy droplets of Eutectic Gallium Indium (EGaIn) and Gallium Indium Tin alloy (Galinstan) can be actuated using electro-wetting-on-dielectric (EWOD) effect. With the ... -
Fabrication of continuous flow microfluidics device with 3D electrode structures for high throughput DEP applications using mechanical machining
(Wiley-VCH Verlag, 2015)Microfluidics is the combination of micro/nano fabrication techniques with fluid flow at microscale to pursue powerful techniques in controlling and manipulating chemical and biological processes. Sorting and separation ... -
Femtosecond laser fabrication of fiber based optofluidic platform for flow cytometry applications
(SPIE, 2017)Miniaturized optofluidic platforms play an important role in bio-analysis, detection and diagnostic applications. The advantages of such miniaturized devices are extremely low sample requirement, low cost development and ... -
Impedance-based viscoelastic flow cytometry
(WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 2019)Elastic nature of the viscoelastic fluids induces lateral migration of particles into a single streamline and can be used by microfluidic based flow cytometry devices. In this study, we investigated focusing efficiency of ... -
Impedimetric detection and lumped element modelling of a hemagglutination assay in microdroplets
(Royal Society of Chemistry, 2016)Droplet-based microfluidic systems offer tremendous benefits for high throughput biochemical assays. Despite the wide use of electrical detection for microfluidic systems, application of impedimetric sensing for droplet ... -
Investigation of AC electro-osmotic flow based microfluidic mixer with micro rods
(Bilkent University, 2018-09)AC electrokinetics (ACEK) is useful technique for providing species manipulation and liquid transportation. This method is applicable to many fields like cell separation, synthesis, pumping, mixing in microfluidics ... -
Lab-on-a-chip platforms for disease detection and diagnosis
(Wiley Blackwell, 2018)The adaptation of silicon electronics microfabrication technologies to other materials led to the birth of microfluidic systems. These systems allow investigation and control of fluids at micrometer scale. Due to the wide ...
