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Relevant bibliographies by topics / Contact Angle Goniometry

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Academic literature on the topic 'Contact Angle Goniometry'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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Journal articles on the topic "Contact Angle Goniometry"

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Vuckovac, Maja, Mika Latikka, Kai Liu, Tommi Huhtamäki, and Robin H. A. Ras. "Uncertainties in contact angle goniometry." Soft Matter 15, no. 35 (2019): 7089–96. http://dx.doi.org/10.1039/c9sm01221d.

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Contact angle measurements on superhydrophobic surfaces can have uncertainties of many degrees due to difficulties in positioning the baseline. The uncertainty depends on the goniometer image resolution.

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Hansen, Daniel, Niels Bomholt, Jonas Camillus Jeppesen, and Adam Cohen Simonsen. "Contact angle goniometry on single micron-scale fibers for composites." Applied Surface Science 392 (January 2017): 181–88. http://dx.doi.org/10.1016/j.apsusc.2016.09.018.

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Orella, Michael Julian, McLain Evan Leonard, Yuriy Román-Leshkov, and Fikile Richard Brushett. "High-throughput analysis of contact angle goniometry data using DropPy." SoftwareX 14 (June 2021): 100665. http://dx.doi.org/10.1016/j.softx.2021.100665.

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Shaughnessy, Kenneth D., Emma G. Langford, Chester Szwejkowski, Patrick Hopkins, and Costel Constantin. "Goniometry Versus Profilometry Studies of Contact Angle for PEDOT:PSS Deposited Onto Silicon and Fused Silica Substrates." MRS Advances 1, no. 7 (2015): 471–75. http://dx.doi.org/10.1557/adv.2015.29.

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ABSTRACTThis paper presents a comparative study on the effects of plasma type and duration on the contact angle of silicon (Si) and fused silica (FS) for the deposition of Poly (3,4 ethyldioxythiophene) Polystyrene Sulfonate (PEDOT:PSS) via drop casting. The two methods used to measure contact angles were goniometry and profilometry. Both methods agreed that the lowest contact angles were given by: 1) 30 seconds in nitrogen/oxygen mix for Si substrates, and 2) 10 minutes in pure oxygen plasma for FS substrates.

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Xiong, Yu Lin, Ji You Gu, and Ying Cheng Hu. "Study on Bonding Performances of Air Plasma Treated FRP." Materials Science Forum 658 (July 2010): 236–39. http://dx.doi.org/10.4028/www.scientific.net/msf.658.236.

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This paper reports on the effect of air plasma on the FRP surface wettability via change of the water contact angle. The aim is to alter the surface in a manner and scale resulting in stronger bonding strength between FRP and wood. The specimens are exposed to the direct current discharge. The irradiation time and power are variables. Goniometry is employed to determine the contact angle of FRP surface. The plasma treatment leads to radical generation and activation of such agents as oxygen, thus the surface contact angle decreases significantly. The shear strength of samples of wood reinforce

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Qin, X., and W. V. Chang. "Characterization of polystyrene surface by a modified two-liquid laser contact angle goniometry." Journal of Adhesion Science and Technology 9, no. 7 (1995): 823–41. http://dx.doi.org/10.1163/156856195x00725.

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Ikonen, Marjukka, Lasse Murtomäki, and Kyösti Kontturi. "Studying the interactions of drugs and hydrophobic model membranes using contact angle goniometry." Colloids and Surfaces B: Biointerfaces 71, no. 1 (2009): 107–12. http://dx.doi.org/10.1016/j.colsurfb.2009.01.013.

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Holländer, A., J. Behnisch, and H. Zimmermann. "Chemical derivatization as a mean to improve contact angle goniometry of chemically heterogenous surfaces." Journal of Polymer Science Part A: Polymer Chemistry 32, no. 4 (1994): 699–709. http://dx.doi.org/10.1002/pola.1994.080320408.

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Nakhowong, R., Toemsak Srikhirin, and Tanakorn Osotchan. "Surface Treatment of Polystyrene Films with Inductively Coupled Plasma System." Advanced Materials Research 55-57 (August 2008): 753–56. http://dx.doi.org/10.4028/www.scientific.net/amr.55-57.753.

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The surface of polystyrene (PS) thin films in argon plasma was modified to study the hydrophilicity properties. An inductively coupled plasma (ICP) system was used to generate the argon plasma. In the experiment, the effect of RF power levels, gas flow rate and treatment time was investigated. The surface morphology of PS films was examined by the atomic force microscopy (AFM), also the contact angle goniometry was used for measuring the wettability of PS films before and after plasma treatment. After the plasma treatment, AFM images of PS revealed the increasing of the surface roughness as in

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Xiong, Yu Lin, Ji You Gu, and Ying Cheng Hu. "Shear Reinforcement of Air Plasma for GFRP-Wood Composite." Advanced Materials Research 150-151 (October 2010): 1321–24. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.1321.

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A study of the effect of air corona plasma treatment on the surface of GFRP (glass-fiber reinforced polymers) has been carried out. The aim is to alter the surface in a manner and scale resulting in stronger shear strength between GFRP and wood. The specimens are exposed to air corona discharge with the irradiation time and power being variables. Goniometry is employed to determine the contact angle of GFRP surface. The results show that the plasma treatment leads to the surface contact angle decreasing significantly. The shear strength of shear test specimens using isocyanate adhesive is stro

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Dissertations / Theses on the topic "Contact Angle Goniometry"

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Bergström, Anna. "SPR Sensor Surfaces based on Self-Assembled Monolayers." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16664.

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<p>The study and understanding of molecular interactions is fundamentally important in today's field of life sciences and there is a demand for well designed surfaces for biosensor applications. The biosensor has to be able to detect specific molecular interactions, while non-specific binding of other substances to the sensor surface should be kept to a minimum. The objective of this master´s thesis was to design sensor s

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Nilebäck, Erik. "A novel biotinylated surface designed for QCM-D applications." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19250.

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<p> </p><p>Control of protein immobilization at sensor surfaces is of great interest within various scientific fields, since it enables studies of specific biomolecular interactions. To achieve this, one must be able to immobilize proteins with retained native structure, while minimizing non-specific protein binding. The high affinity interaction between streptavidin (SA) and biotin is extensively used as a linker between a surface, where SA is immobilized, and the (biotinylated) molecule of interest. Self- assembled monolayers (SAMs) of poly- and oligo ethylene glycol (PEG and OEG) derivative

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Smith, Russell Lynn. "Oxygen Plasma Surface Activation of Polynorbornene for Bonding to Glass with Applications to Microfluidic Systems." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1302490060.

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Pop-Georgievski, Ognen. "Ultratenké polymerní filmy na pevných površích: studium fyzikálními metodami." Doctoral thesis, 2013. http://www.nusl.cz/ntk/nusl-322597.

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The presented doctoral research was aimed at preparation and characterization of ultra thin polymer films on solid substrates using different physical techniques. Each of these physical techniques probes selectively different characteristics of the films. While some of the techniques are strong in the predetermination of some unique properties of the layers, they might be limited and give no specific/conclusive information about some other important characteristics. Therefore, only the combination of the techniques provides a profound picture of the thickness, architecture, composition and fun

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Conference papers on the topic "Contact Angle Goniometry"

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Kang, Hie Chan, and Anthony M. Jacobi. "Mass-Area Method to Measure the Contact Angle on Hydrophilic Surfaces." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64507.

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A mass-area method is proposed to overcome problems in the measurement of the equilibrium contact angles for rough and hydrophilic surfaces. A goniometer usually measures the contact angle at the top plane of a rough surface, not the contact line of the solid-liquid interface. The present method estimates the contact angle indirectly from the volume of the liquid and the size of the contact area, assuming a spherical cap and consistent with a minimization of the free energy. The present method shows a roughly linear relationship with measurements by a goniometer for smooth surfaces of various

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Matczak, Leah, Thomas W. Smith, Michael J. Schertzer, and Patricia Iglesias. "Characterization of Novel High Performance Lubricants." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67012.

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This work will provide a method to characterize a variety of novel high performance lubricants. In particular, surface tension and evolution of the contact angle on a variety of surfaces over one hour were recorded. Contact angles were measured using a ramé-hart Goniometer. Surface tension is measured with the same device using the pendant drop method. Fluids studied here include: trihexyltetradecylphosphonium bis(trifluoromethyl-sulfonyl) amide ([THTDP][NTf2]), trihexyltetradecyl-phosphonium decanoate ([THTDP][Deca]), 1-ethyl-3-methyl imidazolium trifluorosulfonyl imide ([EMI][NTf2]), and 1-e

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Zhao, Jiheng, Jianlong Gao, Xinmiao Chen, Liping Liu, and Wei Xue. "Studies of the Dimensional Effects of SU-8 and PDMS Pillar Arrays on Hydrophobicity." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62692.

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The creation of hydrophobic and superhydrophobic surfaces has attracted tremendous attention in the past decade. Such surfaces provide unique and highly useful properties that are suitable for a wide range of applications. In this paper, we report our findings on the dimensional effects of SU-8 and polydimethylsiloxane (PDMS) pillar arrays on surface hydrophobicity. Pillar arrays with various dimensions are designed and fabricated on SU-8 and PDMS surfaces using optical lithography and soft lithography. The water droplet contact angles on these features are obtained with a goniometer to demons

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Leeladhar, Rajesh, Wei Xu, and Chang-Hwan Choi. "Evaporation of Nanoparticles Droplets on Nanoporous Superhydrophobic Surfaces." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10773.

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In this paper, we experimentally studied the evaporative behavior of the nanofluid droplets (fluid containing metal nanoparticles) on nanoporous superhydrophobic surfaces. Uniformly dispersed in water, gold chloride (AuCl3) nanoparticles of varying sizes (10–250 nm) and concentrations (0.001–0.1% wt) were tested as nanofluids. Porous anodized aluminum oxide (AAO) with a pore size of 250 nm was tested as a nanoporous superhydrophobic surface, coated by a self assembled monolayer (SAM). During the evaporation in a room temperature and pressure, the evaporation kinetics (e.g., contact angle, cont

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Xu, Wei, and Chang-Hwan Choi. "Nanofluids Evaporation Kinetics on Microstructured Superhydrophobic Surfaces." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-13067.

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In this paper, we experimentally studied the evaporation kinetics of sessile droplets of nanofluids with systematically varying particle sizes on superhydrophobic surfaces of well-defined micro-post structures. The superhydrophobic surface patterns were fabricated on a silicon wafer by photolithography and deep reactive ion etching (DRIE) at cryogenic temperature followed by Teflon coating. The 0.01 wt% suspensions of gold (Au) nanoparticles with varying sizes (5, 50, and 250 nm in diameter) were tested as nanofluids for the evaporation kinetics including the contact angle, base diameter, heig

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Mortazavi, Mehdi, Anthony D. Santamaria, Jingru Benner, and Vedang Chauhan. "Enhanced Liquid Water Removal From PEM Fuel Cell Flow Channels by Superimposing Acoustic Pressure Wave on Air Flow." In ASME 2019 17th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/icnmm2019-4295.

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Abstract Enhanced water removal from the flow channel of an ex-situ PEM fuel cell test section is obtained by superimposing acoustic pressure wave on air flow prior to entering into the flow channel. Water accumulation within the flow channel was visualized with a CCD camera and liquid-gas two-phase flow pressure drop was measured along the flow channel. Acoustic pressure waves were superimposed in sine waves at different frequencies between 20 and 120 Hz with a 20-Hz interval. Results indicated that water accumulation in the flow channel was lowest when acoustic pressure waves were superimpos

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Leeladhar, Rajesh, Wei Xu, and Chang-Hwan Choi. "Effects of Nanofluids on Droplet Evaporation and Wetting on Nanoporous Superhydrophobic Surfaces." In ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASMEDC, 2009. http://dx.doi.org/10.1115/mnhmt2009-18551.

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In this paper, nanofluid droplets (fluid containing metal nanoparticles) were subjected to evaporation on a nanoporous superhydrophobic surface to study the effects of nanoparticles on evaporation kinetics, wetting dynamics, and dry-out patterns. Metal nanoparticles (gold chloride) of three different sizes (10, 100, and 250 nm) at three different concentrations (0.001, 0.01, and 0.1% wt) were tested as nanofluids, uniformly dispersed in deionized water. Anodized alumina membranes (200 nm in pore diameter) were tested as nanoporous superhydrophobic surfaces, coated with a self assembled monolay

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Anicescu, Maria-Cristina, Cristina-Elena Dinu-Pirvu, Mihaela Violeta Ghica, et al. "Preliminary analysis of emulsion-based formulations containing pumpkin seed oil and hemp seed oil for internal use." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.1.

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With a long tradition in pharmaceutical design, emulsions are functional formulations that can maintain their adaptive power connected with the new formulation requirements. Hence, this study proposed preliminary assays concerning the obtaining of natural emulsions for oral administration, incorporating pumpkin seed oil and hemp seed oil as oil phases, with lecithin as emulsifying agent. Using emulsification method, O/W and W/O emulsions were prepared and characterized from a stability point of view considering organoleptic parameters, conductivity properties followed by an extensive superfici

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Londe, Ghanashyam, Anindarupa Chunder, Lei Zhai, and Hyoung J. Cho. "A Nanostructured Thermosensitive Smart Surface With Integrated Microheater for Wettability Control." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68732.

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This paper describes the design and fabrication of a switchable thermosensitive polymer with an integrated microheater as a smart surface platform for wettabilty control. The thermoresponsive surface is synthesized on a glass substrate using the polymer poly(N-isopropylacrylamide) (PNIPAAm) which can change its wettability when subjected to change in temperature. PNIPAAm is hydrophilic when the surface temperature is less than the lower critical solution temperature (LCST) range of about 28–33 °C and is hydrophobic above the LCST range. The PNIPAAm surface is heated by spiral gold microheaters

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Beyler Çiğil, Aslı. "Biobased intelligent packaging application." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p40.

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Changes in consumer preferences in order to reach safe food have led to innovations in packaging technologies. Intelligent and active packaging is a constantly developed packaging technology that plans to offer safer and higher quality products. Active packaging refers to the inclusion of additives in the package in order to maintain and / or extend shelf life and product quality. Intelligent systems, on the other hand, are systems that monitor the status of packaged food during this entire period to provide information about the quality of the packaged during storage and transportation. The a

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Reports on the topic "Contact Angle Goniometry"

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Heller, Jack, and Emily Asenath-Smith. Surface wettability using contact angle goniometry. Cold Regions Research and Engineering Laboratory (U.S.), 2018. http://dx.doi.org/10.21079/11681/26471.

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