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Relevant bibliographies by topics / Liquid gating

Academic literature on the topic 'Liquid gating'

Author: Grafiati

Published: 14 March 2023

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Dissertations / Theses
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Journal articles on the topic "Liquid gating"

1

Hou, Xu. "Liquid gating membrane." National Science Review 7, no. 1 (November 28, 2019): 9–11. http://dx.doi.org/10.1093/nsr/nwz197.

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Tesler, Alexander B., Zhizhi Sheng, Wei Lv, Yi Fan, David Fricke, Kyoo-Chul Park, Jack Alvarenga, Joanna Aizenberg, and Xu Hou. "Metallic Liquid Gating Membranes." ACS Nano 14, no. 2 (January 29, 2020): 2465–74. http://dx.doi.org/10.1021/acsnano.9b10063.

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Li, Shi, Jihe Zhao, Xiao Wang, Zhihua Li, Xuefeng Gui, Jiwen Hu, Shudong Lin, and Yuanyuan Tu. "Preparation of polyethylene oxide single crystals via liquid gating technology and morphology design strategy." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 77, no. 5 (September 18, 2021): 819–23. http://dx.doi.org/10.1107/s2052520621008076.

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A novel type of liquid gating technology has been developed to prepare a polyethylene oxide (PEO) single-crystal film, and the crystal growth was observed via atomic force microscopy. The self-seeding method has been widely used in the preparation of polymer single crystals, but the mechanism through which single polymer crystals are formed via the combination of liquid gating technology and the self-seeding method remains unclear. To elucidate the mechanism of this process, a series of experiments were conducted in which a dilute polymer solution was sprayed onto a mica substrate to form a single-crystal film through liquid gating technology to study the effect of the crystallization time on the morphology of a thiol PEO (mPEO-SH) crystal. Based on this research, it was found that liquid gating helps to prevent twinning during crystal growth. The combination of liquid gating and self-seeding technology thus provides a new strategy for polymer single-crystal growth.

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Zhang, Rongrong, Jinmei Lei, Jiadai Xu, Hexuan Fu, Yuan Jing, Baiyi Chen, and Xu Hou. "Bioinspired Photo-Responsive Liquid Gating Membrane." Biomimetics 7, no. 2 (April 18, 2022): 47. http://dx.doi.org/10.3390/biomimetics7020047.

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Stomata in the plant leaves are channels for gas exchange between the plants and the atmosphere. The gas exchange rate can be regulated by adjusting the opening and closing of stoma under the external stimuli, which plays a vital role in plant survival. Under visible light irradiation, the stomata open for gas exchange with the surroundings, while under intense UV light irradiation, the stomata close to prevent the moisture loss of plants from excessive transpiration. Inspired by this stomatal self-protection behavior, we have constructed a bioinspired photo-responsive liquid gating membrane (BPRLGM) through infusing the photo-responsive gating liquid obtained by dissolving the azobenzene-based photo-responsive surfactant molecules (AzoC8F15) in N,N-Dimethylacetamide (DMAC) into nylon porous substrate, which can reversibly switch the open/closed states under different photo-stimuli. Theoretical analysis and experimental data have demonstrated that the reversible photoisomerization of azobenzene-based surfactant molecules induces a change in surface tension of the photo-responsive gating liquid, which eventually results in the reversible variation of substantial critical pressure for gas through BPRLGM under alternating UV (PCritical (off)) and visible (PCritical (on)) light irradiations. Therefore, driven by a pressure difference ΔP between PCritical (on) and PCritical (off), the reversible switches on the open/closed states of this photo-responsive liquid gating membrane can be realized under photo-stimuli. This bioinspired membrane with switchable open/closed liquid gating performance under photo-stimuli has the opportunity to be used in the precise and contactless control of microfluidics.

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Perez-Muñoz, Ana M., Pedro Schio, Roberta Poloni, Alejandro Fernandez-Martinez, Alberto Rivera-Calzada, Julio C. Cezar, Eduardo Salas-Colera, et al. "In operando evidence of deoxygenation in ionic liquid gating of YBa2Cu3O7-X." Proceedings of the National Academy of Sciences 114, no. 2 (December 27, 2016): 215–20. http://dx.doi.org/10.1073/pnas.1613006114.

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Field-effect experiments on cuprates using ionic liquids have enabled the exploration of their rich phase diagrams [Leng X, et al. (2011) Phys Rev Lett 107(2):027001]. Conventional understanding of the electrostatic doping is in terms of modifications of the charge density to screen the electric field generated at the double layer. However, it has been recently reported that the suppression of the metal to insulator transition induced in VO2 by ionic liquid gating is due to oxygen vacancy formation rather than to electrostatic doping [Jeong J, et al. (2013) Science 339(6126):1402–1405]. These results underscore the debate on the true nature, electrostatic vs. electrochemical, of the doping of cuprates with ionic liquids. Here, we address the doping mechanism of the high-temperature superconductor YBa2Cu3O7-X (YBCO) by simultaneous ionic liquid gating and X-ray absorption experiments. Pronounced spectral changes are observed at the Cu K-edge concomitant with the superconductor-to-insulator transition, evidencing modification of the Cu coordination resulting from the deoxygenation of the CuO chains, as confirmed by first-principles density functional theory (DFT) simulations. Beyond providing evidence of the importance of chemical doping in electric double-layer (EDL) gating experiments with superconducting cuprates, our work shows that interfacing correlated oxides with ionic liquids enables a delicate control of oxygen content, paving the way to novel electrochemical concepts in future oxide electronics.

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Wang, Zhecun, Xiaoqiu Liu, Jing Guo, Tauqir A. Sherazi, Suobo Zhang, and Shenghai Li. "A liquid-based Janus porous membrane for convenient liquid–liquid extraction and immiscible oil/water separation." Chemical Communications 55, no. 96 (2019): 14486–89. http://dx.doi.org/10.1039/c9cc07593c.

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A novel liquid-based Janus porous membrane system with self-gating abilities, improved interfacial floatability is used for the practical applications of liquid–liquid extraction and oil/water separation with antifouling behavior.

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ViolBarbosa, Carlos, Julie Karel, Janos Kiss, Ovidiu-dorin Gordan, Simone G. Altendorf, Yuki Utsumi, Mahesh G. Samant, et al. "Transparent conducting oxide induced by liquid electrolyte gating." Proceedings of the National Academy of Sciences 113, no. 40 (September 19, 2016): 11148–51. http://dx.doi.org/10.1073/pnas.1611745113.

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Optically transparent conducting materials are essential in modern technology. These materials are used as electrodes in displays, photovoltaic cells, and touchscreens; they are also used in energy-conserving windows to reflect the infrared spectrum. The most ubiquitous transparent conducting material is tin-doped indium oxide (ITO), a wide-gap oxide whose conductivity is ascribed to n-type chemical doping. Recently, it has been shown that ionic liquid gating can induce a reversible, nonvolatile metallic phase in initially insulating films of WO3. Here, we use hard X-ray photoelectron spectroscopy and spectroscopic ellipsometry to show that the metallic phase produced by the electrolyte gating does not result from a significant change in the bandgap but rather originates from new in-gap states. These states produce strong absorption below ∼1 eV, outside the visible spectrum, consistent with the formation of a narrow electronic conduction band. Thus WO3 is metallic but remains colorless, unlike other methods to realize tunable electrical conductivity in this material. Core-level photoemission spectra show that the gating reversibly modifies the atomic coordination of W and O atoms without a substantial change of the stoichiometry; we propose a simple model relating these structural changes to the modifications in the electronic structure. Thus we show that ionic liquid gating can tune the conductivity over orders of magnitude while maintaining transparency in the visible range, suggesting the use of ionic liquid gating for many applications.

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Xu, Xue, Jing Liu, Min Cao, Jian Zhang, Xinlu Huang, and Xu Hou. "Self-Oscillating Liquid Gating Membranes with Periodic Gas Transport." Membranes 12, no. 7 (June 23, 2022): 642. http://dx.doi.org/10.3390/membranes12070642.

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Liquid gating membranes with molecular-level smooth liquid lining layers break through the limitations of traditional porous membrane materials in gas transport control. Owing to the stable, self-healing, and reconfigurable properties, liquid gating membranes have shown wide application prospects in microfluidics, intelligent valves, chemical reactions, and beyond. Here, we develop a periodic gas transport control system based on the self-oscillating liquid gating membrane. Under continuous gas injection, the gas–liquid interface is reversibly deformed, enabling self-oscillating behavior for discontinuous and periodic gas transport without the need for any complex external changes to the original system. Meanwhile, our experimental analysis reveals that the periodic time and periodic gas release in the system can be regulated. Based on the cycle stability of the system, we further demonstrate the controllability of the system for periodic droplet manipulation in microfluidics. Looking forward, it will offer new opportunities for various applications, such as pneumatic robots, gas-involved chemical reactions, droplet microfluidics, and beyond.

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Chimani, Christian, Richard Kretz, Christoph Angermeier, and Christian Gusenbauer. "Investigations on Microstructure Effect of Changing Fluid Flow Characteristic in High Pressure Die Casting." Materials Science Forum 782 (April 2014): 8–15. http://dx.doi.org/10.4028/www.scientific.net/msf.782.8.

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The flow and filling characteristics during injection of liquid aluminum in high pressure die casting is of significant importance for the product quality. As shown in [ the planar jet of liquid aluminum can be triggered by the design of the gating geometry. Depending on the inlet velocity and the gating design the liquid jet will disintegrate at the jet surface by drop formation and the free jet is dominated by atomization at the gating or by wavy disintegration at low flow velocities. Metallography of samples cast utilizing different nozzle designs are discussed with respect to casting inhomogeneities and microstructural changes respectively. These results are compared to numerical studies on the die filling flow characteristics as well as experimentally water modeling approaches.

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Liu, Han Cheng, Hua Wa Yu, Xiang An Yan, and Jun Fang Wu. "Selection of Voltage and Spectral Range in Liquid Crystal Gating." Key Engineering Materials 428-429 (January 2010): 406–10. http://dx.doi.org/10.4028/www.scientific.net/kem.428-429.406.

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Liquid crystal device (LCD) used as spatial gating apparatus has a lot of new using at low light detecting, imaging spectrum and so on. Since LCD's lattice characteristic, it can come true point gating, local field gating and whole surface gating. It can carry out point-by-point control and feedback of imaging cooperating with CCD detector. Some characteristics of we used LCD, LCX023CMT (SONY), have been detected in order to use conveniently, those include spectra transmittance and which’s changing with gating voltage. The results show that when incident wavelength more than 650nm, this LCD couldn't be used as spatial gating because of polaroid's extinction ratio becoming worse; LCD can modulate the incident light from 400 to 650nm, and the modulates of wavelength range, extent and linearity were related to the modulate voltage clearly. The results indicate that LCD modulates the incident light better and better at voltage more than 2.5V for 550nm; the action modulated become linear with voltage approximately; the modulate extent goes to saturation at voltage more than 5V, and the spectral range modulated is steady in 400-650nm. At voltage more than 5V, transmittance of spectrum is a horizontal beeline almost with incident wavelength range from 400 to 650nm. This indicates that transmittance of spectrum in this range is same, and liquid crystal has none selectivity in colored light. As a result, there is no chromatism between transmitted and incident light. However, because that there is lower transmittance, the reflected light can be used which can ensure not only effective using ratio of light, but also the consistency between reflected and incident light.

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Dissertations / Theses on the topic "Liquid gating"

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Hassan, Muhammad Umair. "Field induced charge modulation of thin film materials using ionic liquid gating." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610675.

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Gallagher, Elyssia Steinwinter. "Capillary Electrophoresis and Capillary Liquid Chromatography for Analysis of Neurological and Neuroendocrine Signaling." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/301536.

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Neurological and neuroendocrine disorders result from signaling dysregulation at the molecular, cellular, and multi-cellular levels. This dissertation presents the development of separation methods, using capillary zone electrophoresis (CZE) and capillary liquid chromatography (CLC), for detecting and quantifying small molecules, peptides, and proteins involved in cellular signaling. CZE is a rapid separation technique, making it ideal for monitoring cellular dynamics with high temporal resolution. An ultraviolet - light emitting diode was used for photolytic optical gating of caged fluorophore-labeled biogenic amines, common functional groups in neurotransmitters. Additionally, a novel caged fluorophore with faster reaction kinetics than commercially available dyes was used to label reduced thiols and primary amines in the presence of o-phthalaldehyde. Together this light source and novel caged dye illustrate the utility of these methods for monitoring chemical dynamics during continuous sampling. Many cellular second messengers, including inositol phosphates, are known to exist within the cell, but their dynamics and intermolecular interactions are poorly understood since they lack chromophores or electroactive functional groups making direct detection difficult. Utilizing CZE with capacitive coupled contactless conductivity detection (C4D), biological phosphates were separated and detected based on their high anionic charge, suggesting the utility of C4D in label-free detection of biological molecules. The techniques described above require higher sensitivity to monitor physiologically relevant analyte concentrations; therefore, Hadamard transform capillary electrophoresis (HTCE) was used as a multiplexing method in which multiple separations were performed simultaneously. HTCE resulted in increased sensitivity by decreasing the random background noise. Peptides and proteins propagate signals within or between cells; yet, they are difficult to separate and detect by CZE since their highly charged surfaces result in non-specific adsorption to the capillary wall. To minimize these interactions, stable hybrid phospholipid bilayers were prepared as capillary coatings for CZE separations of cationic proteins. Additionally, stabilized phospholipid bilayer coatings were formed on silica particles through redox polymerization of synthetic, polymerizable lipids. These bilayers were stable after exposure to surfactant, organic solvents, and after storage for one month, suggesting their value as lipid chromatography stationary phases for future incorporation of transmembrane proteins to analyze binding interactions with small molecules.

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PIATTI, ERIK. "Electrochemical gating for superconductivity engineering in materials towards the 2D limit." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2669688.

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In this thesis work we explored the capability of electrochemical gating to reliably control the ground state of several chosen materials, with a specific focus on the engineering of the superconducting state. We also experimented with different electrolyte compositions in order to best match the electrochemical requirements of the various materials under study (e.g., chemical stability). In the presentation of the results, we will move from the thicker, bulk-like materials down to the truly two-dimensional properties of thin exfoliated single crystals. Chapter 1 presents a general analysis of the field-effect technique based on an electrolytic gate. We discuss the basic principle that allows for the existence of ultrahigh electric fields at the device surface, together with the several pratical limitations and criticalities the technique entails. In particular, we consider the critical distinction between purely electrostatic gating and the regimes where various types of electrochemical interactions are activated between the sample and the electrolyte. We also discuss in detail a purely electrochemical measurement that can be performed on the complete devices in order to determine the amount of charge accumulated in the electric double layer. Chapter 2 shows a selection of our results on superconducting thin films. We analyze extensively the response of conventional BCS superconductor niobium nitride to EDL gating as a function of film thickness (∼ 40−10 nm), and we interpret our data in the framework of a bulk control of the superconducting transition mediated by proximity effect. We then extend our analysis to more complex materials. We show preliminary results on state-of-the-art thin films (∼ 20 nm) of two-gap superconductor magnesium diboride. Finally, we consider thin films of iron-based superconductor barium iron arsenide and show how its Tc can be modulated by the electric field only in the smallest thicknesses available by state-of-the-art growth techniques (∼ 10 nm). Chapter 3 presents our results on thin flakes (∼ 5−10 nm) of transition metal dichalcogenides. We explore via EDL gating the valley occupation in the conduction and of semiconducting molybdenum and tungsten disulphides at high carrier densities. We show preliminary evidence linking the emergence of EDL-induced superconductivity with the population of secondary minima in the bandstructure for molybdenum disulphide. We also exploit electrochemical gating beyond the electrostatic regime to perform field-assisted intercalation of molybdenum disulphide with alkali ions, in an effort to demonstrate both surface and bulk gate-controlled superconductivity in the same device architecture. We find preliminary evidence for the onset of a possible Charge-Density-Wave phase at very high ion doping. Chapter 4 is entirely devoted to our results on few-layer graphene. While we did not observe any gate-induced superconductivity (down to T= 3.5 K) even at the highest induced carrier densities ∼ 6 · 1014 cm-2, we were able to extensively study the dominant scattering mechanisms both in the high and low temperature regimes; in particular, we showed that inelastic scattering for T . 90 K is dominated by electron-electron collisions, in contrast with what was found in the literature for single-layer graphene. Moreover, we observed the emergence of quantum coherence phenomena (weak localization) for T . 20 K in these previously unreached conditions of ultrahigh carrier doping. Finally, in the Conclusions we summarize the most significant results obtained during this thesis work together with the questions that are still left open. Furthermore, we consider some perspectives and future lines of research that could be pursued in the framework of electrolyte gating.

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Žižka, Jiří. "Optimalizace vtokové soustavy s ohledem na využití tekutého kovu při výrobě Al odlitků technologií vytavitelného modelu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416634.

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This diploma thesis deals with the optimization of gating systems of shape-complex aluminum castings produced by investment casting process. Two castings whose massive gating systems make problem with the use of liquid metal (so called yield) were chosen for optimization. Each casting is described in its own chapter. The individual subchapters deal with description of the original and newly designed gating system. Simulation, test castings, X-ray inspection and metallographic examination were performed for each variant. At the end of each chapter there is an evaluation of the results of the optimization of gating system.

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Book chapters on the topic "Liquid gating"

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Hamar, R. "Optimal Gating for Thin-Wall Parts." In Measurement and Control in Liquid Metal Processing, 129–41. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3599-0_12.

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Ozokwelu, Dickson, Suojiang Zhang, Obiefuna C. Okafor, Weiguo Cheng, and Nicholas Litombe. "Ionic Liquid Gating of Thin Films." In Novel Catalytic and Separation Processes Based on Ionic Liquids, 233–43. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-12-802027-2.00016-9.

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Beeley, Peter. "Liquid metals and the gating of castings." In Foundry Technology, 15–50. Elsevier, 2001. http://dx.doi.org/10.1016/b978-075064567-6/50004-2.

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Conference papers on the topic "Liquid gating"

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Liang, Yuan, Yuanhe Tang, Kai Liu, Hanchen Liu, Ruixia Zhang, Haiyang Gao, Gaoxiang Zhao, Qing Li, Na Ye, and Xusan Yang. "Control circuit design of novel partial gating detector by liquid crystal." In Photonics and Optoelectronics Meetings, edited by Liming Zhang and Michael J. O'Mahony. SPIE, 2008. http://dx.doi.org/10.1117/12.821770.

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Futas, Peter, Vladimir Sabik, Jozef Petrik, Peter Blasko, and Lukas Fogaras. "COMPUTER SIMULATION USE IN DESIGN GATING SYSTEM OF CAST MADE FROM THE CAST IRON." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/2.1/s07.01.

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Computer simulation of foundry processes is an essential part of a modern foundry. The role of the gating system, its design and different elements are important in casting. Experimental verification of the designed gating system for new castings is costly, timeconsuming and economically inefficient. Therefore, these processes in the foundry are replaced by computer simulation. A detailed analysis of the simulation results makes it possible to predict various risks that may cause a failure in the quality of casting production and thus the quality of the entire production process. The article deals with by simulating the filling and solidification of the new cast iron casting "Fun Pump Support". Two types of gating systems were created for the given casting, which were subsequently subjected to computer simulation of filling and solidification. 3D models of the Casting and Gating Systems were designed in SolidWorks CAD software. Computer simulation of filling and solidification was performed using the simulation program NovaFlow&Solid CV 4.6r42. The results of the simulations showed that the design of the gating system reduced the amount of liquid metal used for casting, which has significant economic effects in series production. Several simulations of filling and solidification of the developed technological system were designed, while the density of the network, the conditions of casting and solidification were determined so as to be as close as possible to the actual needs of the foundry. The gating system was modified to eliminate casting defects (shrinkages) that occurred during the solidification process, as well as to increasing the utilization of liquid metal.

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Zhang, Ruixia, Yuanhe Tang, Kai Liu, Hanchen Liu, Xusan Yang, Haiyang Gao, Yuan Liang, Qing Li, Na Ye, and Gaoxiang Zhao. "Partial gating image intensifier based on liquid crystal auto-controlling light intensity." In Photonics and Optoelectronics Meetings, edited by Liming Zhang and Michael J. O'Mahony. SPIE, 2008. http://dx.doi.org/10.1117/12.821435.

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Wong, H., S. Ng, Y. Liu, K. Lam, K. Chan, W. Cheng, D. von Nordheim, C. Mak, B. Ploss, and C. Leung. "Ionic Liquid Gating Modulation of Diluted Magnetic Semicon-ductor (Zn, Mn)O Thin Films." In 2018 IEEE International Magnetic Conference (INTERMAG). IEEE, 2018. http://dx.doi.org/10.1109/intmag.2018.8508168.

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Sakata, K., and T. Yamamoto. "Sampling micro-nano size aerosol by droplet formation and using liquid-based gating mechanism." In 2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2016. http://dx.doi.org/10.1109/nano.2016.7751420.

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Yang, Xusan, Yuanhe Tang, Kai Liu, Hanchen Liu, Haiyang Gao, Qing Li, Ruixia Zhang, Na Ye, Yuan Liang, and Gaoxiang Zhao. "Modulation transfer function of partial gating detector by liquid crystal auto-controlling light intensity." In Photonics and Optoelectronics Meetings, edited by Liming Zhang and Michael J. O'Mahony. SPIE, 2008. http://dx.doi.org/10.1117/12.821611.

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Gyu Sik Choe, Dong Wan Kim, Jun-Ho Cheon, Sung Min Seo, and Young June Park. "Simulation of self gating effect of a liquid gate carbon nanotube field effect transistor." In 2008 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD 2008). IEEE, 2008. http://dx.doi.org/10.1109/sispad.2008.4648262.

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Guarneri, Ludovica, Qitong Li, Jung-Hwan Song, Mark L. Brongersma, and Jorik van de Groep. "Exciton-Enhanced Light Scattering in Atomically-Thin Metasurfaces." In CLEO: QELS_Fundamental Science. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_qels.2022.fm4f.3.

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We demonstrate temperature-dependent and dynamic control over light scattering by exciton resonances in atomically-thin optical elements by carving them directly out of monolayer WS2. Using electrostatic ion-liquid gating we dynamically manipulate the material’s exciton resonance.

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Bakhtiyarov, Sayavur I., and Ruel A. Overfelt. "Measurements of Decomposed EPS Gases Pressure and Molten Metal-Polymeric Foam Interface Velocity During Lost Foam Casting Process: Part 2—Rectangular Bars Casting." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1935.

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Abstract The behavior of liquid metal flow and gas pressure of the evaporated styrofoam pattern decomposition by-products inside the mold and surrounding sand for ductile iron was investigated experimentally. A computer aided thermometric and pressure measurement technique was built to study the heat and pressure related processes in the lost foam casting. A complete pattern of temperature/pressure fluctuations is obtained during the rectangular bar casting. A relationship between liquid metal front velocity, mold filling rate, decomposed EPS gases pressure, distance from the gating and mass of decomposed EPS is found.

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Tey, J. N., S. Gandhi, I. P. M. Wijaya, J. Wei, C. R. Suri, I. Rodriguez, and S. G. Mhaisalkar. "Liquid Gated Carbon Nanotubes Field Effect Transistors (LG-CNTFET) Platform for Herbicide Sensing." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10571.

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Single-walled carbon nanotube (SWCNT) is a one-dimensional system with all its carbon atoms present on the surface, hence its conductance is highly sensitive to the surrounding charge environment. Due to the extreme charge sensitivity, biocompatibility and chemical stability, SWCNT is particularly interested in biosensing application. In this paper, we demonstrated a practical approach of fabricating laminated SWCNT liquid gate field effect transistor (LGFET) through a solution processed route involving only two materials, PDMS and SWCNT. The laminated SWCNT LGFETs show great potential towards atrazine detection. The change in the detection signal in terms of conductance was deduced to be due to electrostatic gating mechanism caused by the localized interaction between CNT and the biomolecules. Although relatively high concentration was used in the experiment, the detection limit could be lowered down further by improving the signal-to-noise ratio of the measurement, which can be done through either signal amplification, and/or noise reduction.

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