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52 articles for “PMMA surface”
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Exploring the Dynamic Mechanical Analysis and Biocompatibility of Compression-Molded PMMA for Biomaterial Applications
Abstract: Metals such as titanium, cobalt, and magnesium are commonly used as biomaterials. However, their use can lead to tissue reactions due to the formation of foreign bodies which may cause blood cancer. Researchers have addressed this issue by substituting biomaterials with polymethyl methacrylate materials (PMMA). The PMMA material being studied is produced using the compression molding technique. This article examines the mechanical properties and biotoxicity of PMMA. These materials have …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 482–499 Read article
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Experimental Studies on the Surface-Driven Capillary Flow of Ethanol in the Microfluidic Microchannel Bends
Abstract: Total 36 individual microfluidic devices are fabricated in this work. These microfluidic devices are fabricated by the maskless lithography, hot embossing lithography, direct bonding technique and indirect bonding technique. The surface-driven capillary flow of ethanol is faster in the microchannel of larger channel aspect ratio. The surface-driven capillary flow of ethanol is faster in the microchannel due to the applied centrifugal force. These experimental results are similar in both of …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 3, 2016 · pp. 19–22 Read article
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Short Review on the Effects of Plasma Processing Techniques in PMMA Microfluidic Device
Abstract: Abstract: The plasma processing techniques are useful for surface modifications on polymer surfaces. The appropriate surface modification alters the level of static contact angles on the polymer surfaces. The surface-driven microfluidic flow of suitable working liquid is sensitive to the static contact angle of microchannel surfaces fabricated by different polymers. Therefore, plasma processing techniques are suitable to vary the flow speed of working liquids in microfluidics. In future, this review …
Published in Recent Trends in Fluid Mechanics · Vol. 6, Issue 1, 2019 · pp. 20–22 Read article
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Real-Life Demonstration on the Surface-Driven Capillary Flow in Microfluidic Devices
Abstract: AbstractIn this research paper, glass and PMMA are chosen as materials to fabricate the microfluidic devices due to the optical transparency of these materials. The microfluidic devices are fabricated by the maskless lithography (non-contact lithography), hot embossing lithography (contact lithography), indirect bonding technique, and direct bonding technique. The surface-driven capillary flow is recorded corresponding to each microfluidic device by a CMOS camera. The colour-images are compared with the gray-scale-images for …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 2, 2016 · pp. 8–17 Read article
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Educational Review on the Applications of Diamond-Like Carbon Films in Fluid Engineering
Abstract: In this present review paper, author has described the applications of diamond-like carbon (DLC) films in microfluidic devices from the point of view of materials-science. According to author’s earlier reports, the speed of surface-driven water flow is varied by the coating of DLC films in PMMA microfluidic devices. Also, according to author’s earlier reports, the speed of surface-driven water flow is varied by the coating of DLC films in SU-8 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 6, Issue 3, 2019 · pp. 1–7 Read article
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Experimental Studies to Record the Lithographically Fabricated Microstructures by Surface Profilometry and Scanning Electron Microscopy for Microfluidic Laboratory-on-a-Chip Systems
Abstract: In this research paper, the poly(methyl methacrylate) (PMMA) microfluidic laboratory-on-a-chip system is fabricated in the cleanroom laboratory by maskless lithography, hot embossing lithography and direct bonding technique. The microstructures of the lab-on-a-chip system are measured by surface stylus profilometer. Also, the images of microstructures of lab-on-a-chip system are captured by using scanning electron microscopy (SEM). This fabricated lab-on-a-chip system is useful in bioengineering applications.
Published in Journal of Polymer & Composites · Vol. 4, Issue 1, 2016 · pp. 27–36 Read article
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Cyclic Nanoindentation and Nano-scratch Behaviour of CaCO3/PMMA Nanocomposite
Abstract: The calcium carbonate surface modified with γ-methacryloxypropyltrimethoxysilane was carried out to prepare poly (methyl methacrylate) based composite. The grafting of PMMA increased as the weight ratio between MMA and n-CaCO3 increased, while the grafting efficiency of PMMA decreased. Transmission electron micrograph showed that MPTMS modified n-CaCO3 covered with PMMA was formed by emulsion polymerisation. The scratch resistance of n-CaCO3/PMMA nanocomposites are highly influenced by reinforcement’s type. The effects of n-CaCO3 …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 2, 2020 · pp. 25–36 Read article
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Surface-Driven Capillary Flow on Microchannel Surface Coated with Diamond like Carbon of Nano-scale Thickness towards the Applications in Statistical Features of Fluid Mechanics
Abstract: In this experimental work, polymethylmethacrylate (PMMA) is the chosen polymer as device material to fabricate the microfluidic devices. PMMA is optically transparent polymer which is a facility to record the microfluidic flow of any dyed working liquid inside the fabricated microchannels. Two individual microfluidic devices are fabricated by lithographic techniques. Dyed water is selected and prepared as working liquid. Leakage-free surface-driven capillary flow of dyed water is recorded corresponding to …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 8, Issue 3, 2021 · pp. 8–12 Read article
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Experimental Studies on the Passive Capillary Flow of Non-aqueous Working Liquids in PMMA Microfluidic Devices of Rectangular Cross-Sections
Abstract: The polymethylmethacrylate (PMMA) microfluidic devices are fabricated by the maskless lithography, hot embossing lithography and direct bonding technique. The effects of liquid viscosity, surface wettability and channel aspect ratio on the surface-driven capillary flow of non-aqueous working liquids are studied in the fabricated PMMA microfluidic devices. The working liquids are ethylene glycol, isopropyl alcohol (IPA) and ethanol. These experimental studies will be useful to manipulate different non-aqueous working liquids inside …
Published in Journal of Polymer & Composites · Vol. 5, Issue 2, 2017 · pp. 29–33 Read article
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Performance and Exergy Loss Analysis for a Single Slope Solar Still Using PMMA
Abstract: A solar still constructed using polymethyl methacrylate (PMMA) represents an improved approach to solar desalination, in which conventional materials such as metal or concrete are substituted or reinforced with PMMA- based composites PMMA sheets are often used as the transparent glazing cover of the solar still instead of glass. It allows maximum solar radiation to pass into the basin, heating the saline/brackish water effectively. A tubular solar still made from …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 799–807 Read article
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Polymer-Based Nanocomposite Coatings for Enhancing Solar Photovoltaic Panel Efficiency
Abstract: Environmental factors such as dust deposition, ultraviolet (UV) radiation, and surface reflection significantly reduce the performance of solar photovoltaic (PV) modules. This study investigates the development and performance evaluation of polymer-based nanocomposite coatings designed to improve the optical and surface properties of PV panel glass. A hybrid nanocomposite coating containing TiO₂ and SiO₂ nanoparticles dispersed in a polymethyl methacrylate (PMMA) matrix was synthesized using the sol–gel technique and deposited through …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 490–497 Read article
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Short Report on Surface-Driven Capillary Flow of Dyed Water in Straight Microchannel Fabricated by Polymer
Abstract: In this experimental work, a single straight microchannel of rectangular cross-section is fabricated by maskless lithography, hot embossing lithography and direct bonding technique. This microchannel is fabricated using polymethylmethacrylate (PMMA) as optically transparent polymer. Dyed water is selected and prepared as working liquid. CMOS camera is used to record the surface-driven capillary flow of dyed water in the fabricated straight microchannel. This work will be useful in applied chemistry.
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 3, 2020 · pp. 11–13 Read article
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Microfluidic Flow of Dyed Water in the PMMA Microchannels
Abstract: In this work, total three individual polymethylmethacrylate (PMMA) microfluidic devices are fabricated by the maskless lithography, hot embossing lithography, drilling, direct bonding technique and chip separation technique. Dyed water is the working liquid. One sudden expansion microchannel and two microchannel bends are tested by dyed water. The surfacedriven capillary flow is recorded by the CMOS camera. This work will be useful in the fabrication of PMMA lab-on-a-chip systems for microfluidic …
Published in Research & Reviews : Journal of Physics · Vol. 6, Issue 3, 2017 · pp. 10–13 Read article
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Effects of Channel Volume and Channel Aspect Ratio on the Surface-Driven Capillary Flow of Dyed Water in Sudden Expansion Microchannels Fabricated by Polymer
Abstract: In this experimental work, total three individual sudden expansion microchannels (microfluidic devices) are fabricated by polymethylmethacrylate (PMMA) using the maskless lithography, hot embossing lithography and direct bonding technique. Dyed water is prepared and used as the selected working liquid. Channel aspect ratio (channel height/channel width) is defined and used as the structural parameter in this work. Diffusion coefficient is used as the flow parameter. Effect of channel volume on the …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 2, 2020 · pp. 18–24 Read article
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Short Report on Surface-driven Microfluidic Flow of Dyed Ethanol in Microchannel Bend Fabricated by Optically Transparent Polymer in Cleanroom Environment
Abstract: In this experimental work, a single microchannel bend is fabricated by maskless lithography, hot embossing lithography and direct bonding technique. Polymethylmethacrylate (PMMA) is the chosen optically transparent polymeric material to fabricate the microchannel bend inside the cleanroom laboratory. Dyed ethanol is prepared as working liquid. CMOS camera is used to record the surface-driven capillary flow of dyed ethanol in the fabricated microchannel bend. Effect of centrifugal force on surface-driven capillary …
Published in Trends in Opto-electro & Optical Communication · Vol. 10, Issue 3, 2020 · pp. 1–4 Read article
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Experimental Demonstration on Polymer based Microfluidics at the First Quantisation in Physics
Abstract: Difference between classical mechanics and quantum mechanics is the first quantisation in physics as the quantum theory is first quantisation in physics. Quantum field theory is the second quantisation in physics. Principles of fluid mechanics belong to the classical mechanics (non-quantum). Hence, fluid mechanics is present at the first quantisation in physics. Bulk-fluidics, microfluidics and nanofluidics are the levels of fluid mechanics from the aspects of miniaturisation. In this experimental …
Published in Research & Reviews : Journal of Physics · Vol. 10, Issue 2, 2021 · pp. 1–4 Read article
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Experimental Studies on the Surface-Driven Capillary Flow of Dyed Water in Multistage Microfluidic Bends
Abstract: AbstractA single three-stage and a pair of two-stage microfluidic bends are fabricated. SU-8 as negative photoresist is used to fabricate the stamp by maskless lithography and diamond like carbon (DLC) coating. Microchannel structures are fabricated using polymethylmethacrylate (PMMA) by hot embossing lithography. Direct bonding technique is used to fabricate the leakage-free sealing in microfluidic bends. The leakage-free surface-driven capillary flow is recorded by CMOS camera. This work will be useful …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 3, 2017 · pp. 29–34 Read article
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Short Review on Fluid Mechanics with the Domain of Nanotechnology for Applications in Nuclear-Reactors
Abstract: In this work, a brief review on microfluidic flow is provided. Also, the brief ideas on very large scale integration (VLSI) circuits are provided. A single polymethylmethacrylate (PMMA) based gradual expansion microchannel is fabricated by the maskless lithography, hot embossing lithography and direct bonding technique. Surface-driven microfluidic flow of dyed water is recorded in the fabricated device using a CMOS camera catching 25 frames per second with a corresponding time-scale …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 23, Issue 2, 2021 · pp. 45–50 Read article
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Microfluidic Flow of Dyed Water in the SU-8 based Glass Devices
Abstract: Two individual SU-8 based glass microfluidic devices are fabricated by the maskless lithography and indirect bonding technique. Dyed water is used as working liquid to record the surface-driven capillary flow in each microfluidic device. In the indirect bonding technique, polymethylmethacrylate (PMMA) dissolved in EC solvent is used as the adhesive material to fabricate the leakage-free microfluidic device. CMOS camera is used as the recording tool in this work. This work …
Published in Research & Reviews : Journal of Physics · Vol. 6, Issue 3, 2017 · pp. 14–17 Read article
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Exploring the Influence of SS 316L Nanoparticle Integration on the Flexural Strength of PMMA
Abstract: In the present study, a nano composite PMMA was prepared with the help of hot plate magnetic stirring and probe sonication at different loading conditions of nano sized reinforcement material SS 316L. In order to study the effect of independent factors (the amount of reinforcement material, stirring speed, and sonication time) on response variable (flexural strength), the central composite experimental design of response surface methodology (RSM) was utilized. The analysis …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 75–83 Read article