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46 articles for “microfluidics”
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Experimental Demonstration on Microfluidic-Leakage in SU-8 based Glass Devices for Applications towards the Polymer Microfluidics
Abstract: Classical mechanics and quantum mechanics belong to the first quantisation in physics. Quantummechanics is dependent on quantum theory. Quantum field theory is the second quantisation inphysics. Fluid mechanics is a branch of classical mechanics (non-quantum). Therefore, fluidmechanics is present at the first quantisation in physics. Bulk-fluidics (microfluidics), microfluidicsand nanofluidics are the three levels of fluid mechanics towards miniaturisation. In this experimentalwork, the microfluidic-leakage is prominently demonstrated by fabrication of 12 …
Published in International Journal of Analytical and Applied Chemistry · Vol. 7, Issue 1, 2021 · pp. 1–7 Read article
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Leakage-Free Microfluidic Flow of the Dyed Aqueous Ethanol in a single SU-8 based Glass Microfluidic Device Fabricated by the Selected Microfabrication Technologies
Abstract: In this work, a single SU-8 based glass microfluidic device is fabricated by the maskless lithography and indirect bonding technique. A CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used to record the surface-driven microfluidic flow. Dyed aqueous ethanol (80% dyed water, 20% ethanol) is prepared to be used as working liquid. A surface-driven microfluidic flow of the prepared working liquid is …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 4, Issue 2, 2018 · pp. 13–17 Read article
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Short Review on Passive Capillary Flow in Microfluidics with an Experimental Demonstration about the SU-8 based Microfluidic Device
Abstract: In this experimental work, a single SU-8 based glass microfluidic device is fabricated by maskless lithography and indirect bonding technique. The surface-driven microfluidic flow of dyed water is recorded in the fabricated SU-8 device. Negative photoresist SU-8 is an efficient polymer to fabricate the microfluidic devices. A brief review on surface-driven passive microfluidic flow is provided in this short experimental report towards the applications in microfluidic lab-on-a-chip systems. This short …
Published in International Journal of Analytical and Applied Chemistry · Vol. 8, Issue 1, 2022 · pp. 1–6 Read article
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Experimental Studies on the Surface-Driven Microfluidic Flow of Dyed Ethylene Glycol in Polymer Microfluidic Devices
Abstract: In this experimental work, three individual microfluidic devices are fabricated by polymethylmethacrylate (PMMA) using maskless lithography, hot embossing lithography and direct bonding technique. Straight microchannel having uniform width along entire channel length is the chosen design of microchannels before fabrication. Dyed ethylene glycol is prepared and used as working liquid. Effect of channel aspect ratio on surface-driven capillary flow of dyed ethylene glycol is studied. CMOS camera is used to …
Published in International Journal of Analytical and Applied Chemistry · Vol. 6, Issue 2, 2020 · pp. 17–22 Read article
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Short Review on Nanofluidics with the Experimental Demonstration on Microfluidic Capillary Flow inside Microchannel Bends
Abstract: In this research work, author has presented a short review on nanofluidics. Total three individual microchannel bends as microfluidic devices are designed, fabricated and tested in this experimental work using author’s own hands-on completely. Polymethylmethacrylate (PMMA) is the selected polymeric material to fabricate these microfluidic devices. Dyed water is prepared as working liquid to test these microfluidic devices. According to this experimental study, the surface-driven microfluidic flow of dyed water …
Published in International Journal of Applied Nanotechnology · Vol. 6, Issue 1, 2020 · pp. 16–22 Read article
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Experiments to Record the Capillary Flow of Dyed Waterin SU-8 based Glass Microfluidic Devicestowards the Fluidic Phenomena
Abstract: In this experimental work, a set of three individual leakage-free SU-8 based glass microfluidic devices are fabricated by maskless lithography and proper indirect bonding technique. Dyed water(50% distilled water, 50% red dye) is prepared and used as working liquid. The microfluidic leakage is experimentally demonstrated in other set of two leaky microfluidic devices due to improper indirect bonding technique. The effect of surface-to-volume ratio on surface-driven capillary flow of dyed …
Published in International journal of Nanobiotechnology · Vol. 6, Issue 1, 2020 · pp. 13–19 Read article
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Review on the Capillary Flow Characteristics in Polymer based Microfluidic Systems
Abstract: In this review different effects to control the surface-driven capillary flow in polymer based microfluidic systems. Author has used the polymers like polyimide, SU-8 and polymethylmethacrylate (PMMA) to fabricate the polymer based microfluidic systems. Author has studied the individual effects of surface wettability, surface free energy, surface chemistry, surface topography, channel aspect ratio, capillary pressure, kinetic energy, centrifugal force, surface area to volume ratio, microfluidic friction, liquid viscosity and effective …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 1, 2018 · pp. 28–33 Read article
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Low-Cost FDM-Printed Microfluidic Droplet Generators with Vertical Flow-Focusing Channels
Abstract: *Author for CorrespondenceL. K. NarangammanaE-mail: [email protected] Low-cost fabrication methods are now essential for expanding access to microfluidic technologies in biological and laboratory applications. In this work, we present a fused deposition modeling (FDM) based approach for the rapid fabrication of monolithic microfluidic droplet generators incorporating several T-junction and specific flow-focusing geometries, including a novel vertical channel configuration. All devices were fabricated without post-processing or bonding, demonstrating a simple and cost-effective …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 1, 2026 · pp. 30–46 Read article
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Short Review on Thermodynamic Effect to Generate the Surface-Driven Microfluidic Flow in Fluid Mechanics
Abstract: The levels of fluid mechanics are bulk-fluidics (macrofluidics), microfluidics, and nanofluidics in thedirection of miniaturisation. In this review, a brief account is provided to describe the thermodynamiceffect behind the generation of any surface-driven microfluidic flow in the regime of fluid mechanics.Also, an experimental demonstration on the surface-driven microfluidic flow of dyed water isprovided corresponding to the SU-8 based glass microfluidic devices fabricated by masklesslithography and indirect bonding technique. A prominent …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 1, 2021 · pp. 10–13 Read article
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SU-8 Based Glass Microfluidic Device Coated with Deposited Nano-Layer for Future Fabrication of Nanofluidic Microelectromechanical Systems
Abstract: Two SU-8 based glass microfluidic devices are fabricated by maskless lithography and laboratory-made clamping. The inner walls of one device are coated with nano-layer of diamond like carbon (DLC) using the plasma enhanced chemical vapour deposition (PECVD) system. The other device is remained uncoated. A CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used to record each surface-driven microfluidic flow of dyed …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 2, 2020 · pp. 60–63 Read article
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Short Report on Capillary Motion of Dyed Ethylene Glycol for Application towards the Gas Flow in Microfluidics
Abstract: In this experimental report, a couple of SU-8 based glass microfluidic devices are fabricated bymaskless lithography and indirect bonding technique. Each device is tested by the prepared dyedethylene glycol as working liquid. The microfluidic-leakage is recorded in the surface-drivencapillary motion of dyed ethylene glycol due to improper indirect bonding technique. The leakagefreesurface-driven capillary motion of dyed ethylene glycol is recorded due to proper indirectbonding technique. This experimental work is performed …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 7, Issue 1, 2021 · pp. 13–16 Read article
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Methodologies and Bioengineering Applications of Microfluidic Laboratory-on-a-Chip Systems
Abstract: Any microchannel has at least one of the height, width, diameter or length having the dimension of less than one millimeter. Microfluidics is the subject dealing with the movements of liquid or gas inside the microchannels. The principles of microfluidics are highly used in the microfluidic lab-on-a-chip systems to achieve the desired operation. In the last few years, the microfabrication methodologies are highly improved to fabricate the microfluidic lab-on-a-chip systems …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 4, Issue 1, 2018 · pp. 1–3 Read article
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Review on the Hot Embossing Technology to Fabricate the Polymer based Microfluidic Devices in Mechanical Engineering
Abstract: Polymers are suitable materials to fabricate the microfluidic devices in mechanical engineering. Hot embossing technology is useful to fabricate these polymer based microfluidic devices. Both of the lithography and direct bonding can be performed by hot embossing technology to fabricate these polymer based microfluidic devices. Polymer microfluidic devices fabricated by the hot embossing technology are useful in multifarious bioengineering applications according to the available literatures. Keywords: Hot embossing, Polymer, Microfluidics, …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 1, 2018 · pp. 34–37 Read article
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Experimental Demonstration on the Recording of Capillary-Filled Microfluidic Devices Fabricated by Polymeric Material
Abstract: In this present experimental work, total 52 individual PMMA microfluidic devices are fabricated by maskless lithography, hot embossing lithography and direct bonding technique in a cleanroom laboratory. The selected working liquids are dyed water, dyed aqueous ethanol and dyed aqueous isopropyl alcohol and are prepared in a materials-science laboratory. Fabricated microfluidic devices are tested by the prepared aqueous working liquids, and each capillary-filled device after the surface-driven microfluidic flow is …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 31–41 Read article
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Experimental Studies on the Surface-Driven Capillary Flow of Water in Pristine and Processed Microfluidic Devices Fabricated by PMMA
Abstract: In this work, air dielectric barrier discharge (DBD) plasma processing on pristine polymethylmethacrylate (PMMA) flat surface is the chosen surface modification technique to vary the surface wettability creating a difference in microfluidic speed of dyed water. Straight microchannel of uniform width, microchannel with integrated micropillars on bottom wall, and microchannel bend are the proposed designs of PMMA microfluidic devices in this work. Each microfluidic flow of dyed water is recorded …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 1, 2018 · pp. 33–38 Read article
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Short Experimental Report on the Passive Microfluidic Flow in Fluid Mechanics
Abstract: In this work related to experiments, two individual polymethylmethacrylate (PMMA) based microfluidic devices (microchannel bends) are fabricated by the following techniques: (a) maskless lithography, (b) hot embossing lithography, and (c) direct bonding technique. Dyed water is chosen as working liquid in this particular work. The CMOS camera is used to capture each passive microfluidic flow of dyed water in the fabricated devices. The effects of channel aspect ratio and centrifugal …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 2, 2021 · pp. 32–37 Read article
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Short Report on the Passive Microfluidic Flow of Ethanol towards Nanofluidics in Nanotechnology
Abstract: In this experimental work, a single gradual expansion microchannel is fabricated by polymethylmethacrylate (PMMA) as polymeric material using author’s own hands-on in the maskless lithography, hot embossing lithography, and direct bonding technique. Dyed ethanol is prepared as working liquid. A CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used by author to record the surface-driven microfluidic flow of dyed ethanol in the …
Published in International Journal of Applied Nanotechnology · Vol. 7, Issue 2, 2021 · pp. 13–17 Read article
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Surface-Driven Microfluidic Flow of Dyed Water for Nano-Scale Application towards the Fabrication of Nanofluidic Sensors
Abstract: In this experimental work, a single SU-8 based glass microfluidic device is fabricated by maskless lithography and indirect bonding technique. Dyed water is prepared and used as working liquid. A CMOS camera is used to record the surface-driven microfluidic flow of dyed water in the fabricated SU-8 device. Leakage-free surface-driven microfluidic flow of dyed water is recorded. Nanofluidics is the next level of fluid mechanics after microfluidics towards miniaturisation of …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 7, Issue 1, 2021 · pp. 19–22 Read article
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Passive Capillary Flow of Dyed Water in SU-8 based Glass Microfluidic Devices integrated with Polyimide Layer on the Bottom Wall
Abstract: In this work, total 4 individual SU-8 based glass microfluidic devices are fabricated by the maskless lithography and indirect bonding technique. The polyimide layer is integrated on the selected portion of glass bottom wall of each device. Each passive capillary flow of dyed water is recorded by a CMOS camera catching 25 frames per second. This work will be useful to fabricate the SU-8 based laboratory-on-a-chip systems for microfluidic applications. …
Published in International Journal of Chemical Separation Technology · Vol. 4, Issue 1, 2018 · pp. 13–15 Read article
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Passive Capillary Flow of Dyed Ethylene Glycol in the SU-8 based Glass Microfluidic Devices Fabricated by Microfabrication Technologies
Abstract: In this work, total 4 individual SU-8 based glass microfluidic devices are fabricated by the steps of maskless lithography and indirect bonding technique using author’s own hands-on completely. Dyed ethylene glycol (80% red dye, 20% ethylene glycol) is prepared as working liquid. The CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used to record the surface-driven capillary flow of dyed ethylene glycol …
Published in International Journal of Chemical Engineering and Processing · Vol. 5, Issue 1, 2019 · pp. 37–42 Read article