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Relevant bibliographies by topics / Chemomechanical

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Academic literature on the topic 'Chemomechanical'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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Journal articles on the topic "Chemomechanical"

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Choe, Kiyoung, and Kwang J. Kim. "Polyacrylonitrile linear actuators: Chemomechanical and electro-chemomechanical properties." Sensors and Actuators A: Physical 126, no. 1 (January 2006): 165–72. http://dx.doi.org/10.1016/j.sna.2005.09.008.

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Ricard, Alain, Yves Aurelle, Pierre Lopez, Bertrand Tondu, and Dominique Vial. "Chemomechanical transformations of gels: artificial muscles and chemomechanical actuators." Matériaux & Techniques 83 (1995): 7–14. http://dx.doi.org/10.1051/mattech/199583120007s.

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Osada, Yoshihito. "Chemomechanical polymer gel." Kobunshi 36, no. 5 (1987): 354–57. http://dx.doi.org/10.1295/kobunshi.36.354.

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Peric, Tamara, and Dejan Markovic. "Chemomechanical caries removal." Serbian Dental Journal 50, no. 3 (2003): 150–54. http://dx.doi.org/10.2298/sgs0303150p.

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The purpose of this paper was to introduce Carisolv? system for chemo-mechanical caries removal and its main characteristics, mechanism of action, clinical procedure and the efficacy of this alternative method. New materials and technical and technological development contributed to more precise and efficient work in dentistry. However, problems of rotary instruments for caries removal have remained. Chemomechanical method for caries removal was introduced thirty years ago as an alternative to the conventional mechanical instruments. The technique involved applying a solution onto the carious tissue, allowing it to soften and to remove it without use of drill. Its advantages were: selective removal of carious tissue, absence of pain, reduced need for local anesthesia and reduced potential negative effects to the dental pulp.

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Hamama, HHH, CKY Yiu, MF Burrow, and NM King. "Systematic Review and Meta-Analysis of Randomized Clinical Trials on Chemomechanical Caries Removal." Operative Dentistry 40, no. 4 (June 1, 2015): E167—E178. http://dx.doi.org/10.2341/14-021-lit.

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SUMMARY Objectives The aim of this review was to assess the methodologies used in previously published prospective randomized clinical trials on chemomechanical caries removal and to conduct a meta-analysis to quantify the differences in the excavation time between chemomechanical and conventional caries removal methods. Methods An electronic search was performed using Scopus, PubMed, EBSCO host, and Cochrane Library databases. The following categories were excluded during the assessment process: non-English studies published before 2000, animal studies, review articles, laboratory studies, case reports, and nonrandomized or retrospective clinical trials. The methodologies of the selected clinical trials were assessed. Furthermore, the reviewed clinical trials were subjected to meta-analysis for quantifying the differences in excavation time between the chemomechanical and the conventional caries removal techniques. Results Only 19 randomized clinical trials fit the inclusion criteria of this systematic review. None of the 19 reviewed trials completely fulfilled Delphi's ideal criteria for quality assessment of randomized clinical trials. The meta-analysis results revealed that the shortest mean excavation time was recorded for rotary caries excavation (2.99±0.001 minutes), followed by the enzyme-based chemomechanical caries removal method (6.36±0.08 minutes) and the the hand excavation method (atraumatic restorative technique; 6.98±0.17 minutes). The longest caries excavation time was recorded for the sodium hypochlorite-based chemomechanical caries removal method (8.12±0.02 minutes). Conclusions It was found that none of the current reviewed trials fulfilled all the ideal requirements of clinical trials. Furthermore, the current scientific evidence shows that the sodium hypochlorite-based (Carisolv) chemomechanical caries removal method was more time consuming when compared to the enzyme-based (Papacarie) chemomechanical and the conventional caries removal methods. Further prospective randomized controlled clinical trials evaluating the long-term follow-up of papain-treated permanent teeth are needed.

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Ricard, Alain, Yves Aurelle, Pierre Lopez, and Bertrand Tondu. "Chemomechanical transformations of gels." Matériaux & Techniques 82, no. 11 (1994): 34–35. http://dx.doi.org/10.1051/mattech/199482110034.

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GEORGOPOULOU, M., P. ANASTASSIADIS, and S. SYKARAS. "Pain after chemomechanical preparation." International Endodontic Journal 19, no. 6 (November 1986): 309–14. http://dx.doi.org/10.1111/j.1365-2591.1986.tb00495.x.

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Buonsanti, Michele, Roger Fosdick, and Gianni Royer-Carfagni. "Chemomechanical Equilibrium of Bars." Journal of Elasticity 84, no. 2 (June 23, 2006): 167–88. http://dx.doi.org/10.1007/s10659-006-9062-4.

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Magalhães, Cláudia Silami de, Allyson Nogueira Moreira, Wagner Reis da Costa Campos, Fernanda Magalhães Rossi, Guilherme Augusto Alcaraz Castilho, and Raquel Conceição Ferreira. "Effectiveness and efficiency of chemomechanical carious dentin removal." Brazilian Dental Journal 17, no. 1 (2006): 63–67. http://dx.doi.org/10.1590/s0103-64402006000100014.

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The aims of this in vitro study were both to determine the time necessary for removal of carious dentin (efficiency) and the Knoop Hardness Number (KHN) of the remaining dentin (effectiveness), using a chemomechanical method (Carisolv) or hand excavation. Thirty human molars were bisected through occlusal carious lesions into two equal halves. Each half was randomly excavated by hand in circular movements with a spoon excavator or using Carisolv gel according to the manufacturer's instructions. The duration of carious dentin removal was recorded. Tooth sections were resin-embedded, ground flat and polished. Dentin KHN was determined at distances of 100, 200, 300, 400 and 500 mum from the cavity floor. Data were analyzed by Wilcoxon's test (alpha=0.01), ANOVA and Student's t test (alpha= 0.05). The median of the time necessary for chemomechanical excavation was significantly greater than for hand excavation. KHN means (± SD) at 100, 200, 300, 400, 500 µm for chemomechanical method were, respectively: 15.6 (±4.96), 18.0 (±6.22), 21.3 (±9.30), 24.3 (±9.25), 28.5 (±11.80); and for hand excavation were: 21.2 (±10.26), 23.4 (±9.49), 28.2 (±11.62), 31.0 (±12.17), 34.3 (±11.95). It may be concluded that hand excavation presented higher efficiency and effectiveness than chemomechanical excavation.

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Zhou, Ling, Valerie Audurier, Pirouz Pirouz, and J. Anthony Powell. "Chemomechanical Polishing of Silicon Carbide." Journal of The Electrochemical Society 144, no. 6 (June 1, 1997): L161—L163. http://dx.doi.org/10.1149/1.1837711.

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Dissertations / Theses on the topic "Chemomechanical"

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Spencer, C. I. "Chemomechanical coupling in skeletal muscle." Thesis, Open University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383710.

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Stolic, Nicole. "Does chemomechanical caries removal affect restoration survival?" Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19614.

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SyfteDenna systematiska översiktsstudie gjordes i syfte att sammanställa randomiserade kontrollerade studier som jämför fyllningsöverlevnaden där kaviteten preparerats med Carisolv, borr och/eller hand exkavering. Studien gjordes också för att kunna användas till fortsatta studier inom området.Material & MetodDatabassökning i PubMed och Cochrane gjordes. Alla titlar och sammanfattningar lästes, de som var relevanta för denna studie lästes sedan i fulltext. Totalt 9 artiklar inkluderades och varje artikel granskades m h a GRADE modellen för att bestämma studiernas evidensstyrka.Resultat913 tänder behandlades med en av metoderna. Studierna undersökte fyllningsöverlevnaden vid olika uppföljningstillfällen, mellan 6 månader och 2 år. Resultaten visar inga statistiskt signifikanta skillnader för fyllningsöverlevnad mellan de olika metoderna.SlutsatsResultaten visar ingen statistisk skillnad i fyllningsöverlevnad mellan Carisolv och andra metoder för att avlägsna karies. Resultaten kan stödja karies exkavering med Carisolv, eftersom metoden dessutom kan användas för karies exkavering på barn och tandvårdsrädda patienter då metoden är mindre obehaglig och patienten behöver således inte lokalanestesi lika ofta. Dock är studierna inom detta område få samt att de har låg evidensstyrka vilket gör att det behövs fler studier på området med högre evidensstyrka.
AimThis systematic review aimed to summarize randomized controlled trials (RCTs) that evaluate the survival rates of restorations, comparing the Carisolv system to hand excavation and/or the conventional drilling method. The aim was also to collect all data in one place to be used for further research.Materials & MethodsA database screening of PubMed and the Cochrane library was performed. One reviewer read all titles and abstracts, those considered of interest were fully scrutinized. A total of 9 articles were included and each was evaluated using the GRADE-system. The studies were appraised to have a low level of evidence.ResultsA total 913 teeth received treatment either with Carisolv, hand excavation and/or drilling. The studies evaluated the success rate of dental restorations at follow-ups between 6 months to two years. The results showed no significant difference in success rate of restorations made either by Carisolv, bur or hand excavation.ConclusionsThe results showed as high success rates for caries removal with Carisolv as with other methods, in terms of restoration survival, and that there was no statistically significant difference between the test group and control group. These results are encouraging for caries removal with Carisolv since it also can be used as an alternative treatment for children and patients with dental fear due to the less painful experience and lesser need for local anesthesia. The present studies on this subject are few and have limited evidence, thus underlining the need for more studies on the subject and studies with higher evidence for further research.

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Hamama, Hamdi Hosni Hamdan Eldesouki. "Influence of chemomechanical caries removal methods on dentine." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/202369.

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Chemomechanical caries excavation is an excellent example of conservative caries removal methods due to its ability to reliably preserve a greater thickness of caries-affected dentine (CAD). Chemomechanical caries removal (CMCR) agents dissolve the denatured collagen fibrils leaving the sound and partially degraded fibrils intact. Also, one of the main advantages of the CMCR method is its characteristic visual excavation end point sign, after this point, the solution fails to become turbid. Chemomechanical caries removal agents are classified based on their chemistry into sodium hypochlorite (NaOCl)- or enzyme-based CMCR agents. The aim of this project was to evaluate the efficacy of currently available chemomechanical caries removal methods and their effects on tooth substrate, residual bacteria, and bonding to dentine with either resin- or resin-modified glass ionomer (RM-GIC)-based adhesives. The current project was designed to answer five research questions. The first research question aimed to compare the caries excavation time between CMCR and rotary caries removal methods. According to the outcome of this study, the NaOCl-based CMCR method is more time consuming compared with the enzyme-based CMCR method. Furthermore, no significant difference in caries excavation time was found between the enzymebased CMCR and the caries-detector guided rotary caries excavation method. The second research question investigated the effects of CMCR methods on surface topography, hardness and chemical structure of dentine. The morphological analysis showed that there was no smear layer formed following enzyme-based CMCR; while it was partially absent after the NaOCl-based CMCR method. Also, the Vickers hardness of residual dentine following both CMCR methods was lower than the hardness of dentine following the rotary caries removal method. Moreover, the outcome of this study also revealed that the CMCR methods investigated had no adverse effect on the chemical structure of dentine. The third research question was regarding the evaluation of the antibacterial effects of CMCR agents. Accordingly, a study was conducted on coronal cariesfree dentine discs using a modified non-invasive protocol. This confocal laser scanning microscopy study reported that the enzyme-based CMCR agent (Papacarie) showed an antimicrobial effect similar to 2% chlorhexidine gluconate solution (gold standard antibacterial solution). The NaOCl-based CMCR agent (Carisolv) showed a weak antibacterial activity, which could be improved by subsequent application of a silver diamine fluoride and potassium iodide agent. The ‘adhesion studies section’ of this project consists of three studies and was conducted to answer the fourth and fifth research questions of this project. The outcomes of the first and second studies showed that surface treatment of dentine with 37% phosphoric acid for 5 seconds had no adverse effect on bonding of RMGIC adhesives to both sound and caries-affected dentine, which addressed the fourth research question. The purpose of the last research question was to evaluate the effect of CMCR method on bonding of MDP-containing self-etch and RM-GIC adhesives to residual caries-affected dentine. It was concluded that CMCR methods had no adverse effects on bonding to dentine and both adhesive systems showed good bond strengths to caries-affected dentine.
published_or_final_version
Dentistry
Doctoral
Doctor of Philosophy

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Lee, Michael V. "Development of chemomechanical functionalization and nanografting on silicon surfaces /." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2023.pdf.

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Coy, David Laughlin. "The activation and chemomechanical stoichiometry of cargo-loaded kinesin /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/10530.

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Lee, Michael Vernon. "Development of Chemomechanical Functionalization and Nanografting on Silicon Surfaces." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1435.

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Progress in chemomechanical functionalization was made by investigating the binding of molecules and surface coverage on the silicon surface, demonstrating functionalization of silicon with gases by chemomechanical means, analyzing atomic force microscopy probe tip wear in atomic force microscopy (AFM) chemomechanical nanografting, combining chemomechanical functionalization and nanografting to pattern silicon with an atomic force microscope, and extending chemomechanical nanografting to silicon dioxide. Molecular mechanics of alkenes and alkynes bound to Si(001)-2x1 as a model of chemomechanically functionalized surfaces indicated that complete coverage is energetically favorable and becomes more favorable for longer chain species. Scribing a silicon surface in the presence of ethylene and acetylene demonstrated chemomechanical functionalization with gaseous reagents, which simplifies sample cleanup and adds a range of reagents to those possible for chemomechanical functionalization. Thermal desorption spectroscopy was performed on chemomechanically functionalized samples and demonstrated the similarity in binding of molecules to the scribed silicon surface and to the common Si(001)-2x1 and Si(111)-7x7 surfaces. The wearing of atomic force microscope probe tips during chemomechanical functionalization was investigated by correlating change over time and force with widths of created lines to illustrate the detrimental effect of tip wear on mechanically-driven nanopatterning methods. In order to have a starting surface more stable than hydrogen-terminated silicon, silicon reacted with 1-octene was used as a starting surface for AFM chemomechanical functionalization, producing chemomechanical nanografting. Chemomechanical nanografting was then demonstrated on silicon dioxide using silane molecules; the initial passivating layer reduced the tip friction on the surface to allow only partial nanografting of the silane molecules. These studies broadened the scope and understanding of chemomechanical functionalization and nanografting.

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Cho, Hansohl. "Atomistic simulations of chemomechanical processes in nanomaterials under extreme environments." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/57788.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 142-146).
The complex chemomechanical behavior of nanomaterials under extreme thermal and mechanical environments is of interest for a range of basic science and defense applications. By the limitation of experimental approaches for objects of nanometer, novel computational methods have been developed to investigate such phenomena in nanomaterials under extreme environments. In this thesis, novel continuum and atomistic mechanical modeling and simulations are implemented and constructed for the analysis of the chemomechanical behavior of the dissimilar nano-scale metals, Nickel and Aluminum under a variety of thermal and mechanical stimuli. These studies form the basis of preliminary research on the predictive design principles for reactive polymer nanocomposites.
by Hansohl Cho.
S.M.

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Cannon, Bennion Rhead. "Design and Analysis of End-Effector Systems for Scribing on Silicon." BYU ScholarsArchive, 2003. https://scholarsarchive.byu.edu/etd/95.

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This thesis investigates end-effector systems used in a chemomechanical scribing process. Chemomechanical scribing is a method of patterning silicon to selectively deposit a monolayer of material on the surface of the silicon. This thesis details the development of a unique end-effector for chemomechanical scribing using a compliant mechanism solution. The end-effector is developed to scribe lines that have uniform geometry and produce less chipping on the surface of the silicon. The resulting scribing mechanism is passively controlled, has high lateral stiffness, and low axial stiffness. The mechanism is analyzed using the pseudo-rigid-body model and linear-elastic beam method to determine the axial stiffness, finite element methods to determine the lateral stiffness, and fatigue analysis to determine mechanism cycle life. This thesis also investigates the significance of mechanical factors on the chemomechanical scribing process using the compliant end-effector. The factors examined are scribing force, scribing speed, tip geometry, wafer orientation, and wetting liquid. The factors are analyzed using a two-step approach: first, an analysis of the influence of the mechanical factors on line characteristics and second, an analysis of the influence of line characteristics on line performance.

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Bierbaum, Veronika. "Chemomechanical coupling and motor cycles of the molecular motor myosin V." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2011/5361/.

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In the living cell, the organization of the complex internal structure relies to a large extent on molecular motors. Molecular motors are proteins that are able to convert chemical energy from the hydrolysis of adenosine triphosphate (ATP) into mechanical work. Being about 10 to 100 nanometers in size, the molecules act on a length scale, for which thermal collisions have a considerable impact onto their motion. In this way, they constitute paradigmatic examples of thermodynamic machines out of equilibrium. This study develops a theoretical description for the energy conversion by the molecular motor myosin V, using many different aspects of theoretical physics. Myosin V has been studied extensively in both bulk and single molecule experiments. Its stepping velocity has been characterized as a function of external control parameters such as nucleotide concentration and applied forces. In addition, numerous kinetic rates involved in the enzymatic reaction of the molecule have been determined. For forces that exceed the stall force of the motor, myosin V exhibits a 'ratcheting' behaviour: For loads in the direction of forward stepping, the velocity depends on the concentration of ATP, while for backward loads there is no such influence. Based on the chemical states of the motor, we construct a general network theory that incorporates experimental observations about the stepping behaviour of myosin V. The motor's motion is captured through the network description supplemented by a Markov process to describe the motor dynamics. This approach has the advantage of directly addressing the chemical kinetics of the molecule, and treating the mechanical and chemical processes on equal grounds. We utilize constraints arising from nonequilibrium thermodynamics to determine motor parameters and demonstrate that the motor behaviour is governed by several chemomechanical motor cycles. In addition, we investigate the functional dependence of stepping rates on force by deducing the motor's response to external loads via an appropriate Fokker-Planck equation. For substall forces, the dominant pathway of the motor network is profoundly different from the one for superstall forces, which leads to a stepping behaviour that is in agreement with the experimental observations. The extension of our analysis to Markov processes with absorbing boundaries allows for the calculation of the motor's dwell time distributions. These reveal aspects of the coordination of the motor's heads and contain direct information about the backsteps of the motor. Our theory provides a unified description for the myosin V motor as studied in single motor experiments.
Die hier vorgelegte Arbeit entwickelt unter Verwendung vieler verschiedener Aspekte der statistischen Physik eine Theorie der chemomechanischen Kopplung für den Energieumsatz des molekularen Motors Myosin V. Das Myosin V ist sowohl in chemokinetischen wie in Einzelmolekülexperimenten grundlegend untersucht worden. Seine Schrittgeschwindigkeit ist in Abhängigkeit verschiedener externer Parameter, wie der Nukleotidkonzentration und einer äußeren Kraft, experimentell bestimmt. Darüber hinaus ist eine große Anzahl verschiedener chemokinetischer Raten, die an der enzymatischen Reaktion des Moleküls beteiligt sind, quantitativ erfasst. Unter der Wirkung externer Kräfte, die seine Anhaltekraft überschreiten, verhält sich der Motor wie eine Ratsche: Für Kräfte, die entlang der Schrittbewegung des Motors wirken, hängt seine Geschwindigkeit von der ATP-Konzentration ab, für rückwärts angreifende Kräfte jedoch ist die Bewegung des Motors unabhängig von ATP. Auf der Grundlage der chemischen Zustände des Motors wird eine Netzwerktheorie aufgebaut, die die experimentellen Beobachtungen des Schrittverhaltens für Myosin V einschließt. Diese Netzwerkbeschreibung dient als Grundlage für einen Markovprozess, der die Dynamik des Motors beschreibt. Die Verwendung diskreter Zustände bietet den Vorteil der direkten Erfassung der chemischen Kinetik des Moleküls. Darüber hinaus werden chemische und mechanische Eigenschaften des Motors in gleichem Maße im Modell berücksichtigt. Durch die Erfassung der Enzymkinetik mittels eines stochastischen Prozesses lässt sich die Motordynamik mit Hilfe des stationären Zustands der Netzwerkdarstellung beschreiben. Um diesen zu bestimmen, verwenden wir eine graphentheoretische Methode, die auf Kirchhoff zurückgreift. Wir zeigen in Einklang mit den Gesetzen der Thermodynamik für Nichtgleichgewichtssysteme, dass das Schrittverhalten des Motors von mehreren chemomechanischen Zyklen beeinflusst wird. Weiterhin untersuchen wir das funktionale Verhalten mechanischer Schrittraten in Abhängigkeit der äußeren Kraft unter Verwendung einer geeigneten Fokker-Planck-Gleichung. Hierfür wird auf die Theorie einer kontinuierlichen Beschreibung von molekularen Methoden zurückgegriffen. Wir berechnen Größen wie die mittlere Schrittgeschwindigkeit, das Verhältnis von Vorwärts- und Rückwärtsschritten, und die Lauflänge des Motors in Abhängigkeit einer äußeren angreifenden Kraft sowie der Nukleotidkonzentration, und vergleichen diese mit experimentellen Daten. Für Kräfte, die kleiner als die Anhaltekraft des Motors sind, unterscheidet sich der chemomechanische Zyklus grundlegend von demjenigen, der für große Kräfte dominiert. Diese Eigenschaft resultiert in einem Schrittverhalten, das mit den experimentellen Beobachtungen übereinstimmt. Es ermöglicht weiterhin die Zerlegung des Netzwerks in einzelne Zyklen, die die Bewegung des Motors für verschiedene Bereiche externer Kräfte erfassen. Durch die Erweiterung unseres Modells auf Markovprozesse mit absorbierenden Zuständen können so die Wartezeitenverteilungen für einzelne Zyklen des Motors analytisch berechnet werden. Sie erteilen Aufschluss über die Koordination des Motors und enthalten zudem direkte Informationen über seine Rückwärtsschritte, die experimentell nicht erfasst sind. Für das gesamte Netzwerk werden die Wartezeitenverteilungen mit Hilfe eines Gillespie-Algorithmus bestimmt. Unsere Theorie liefert eine einheitliche Beschreibung der Eigenschaften von Myosin V, die in Einzelmolekülexperimenten erfasst werden können.

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Nicol, Irene. "Etching and chemomechanical polishing of compound semiconductors using halogen-based reagents." Thesis, University of Glasgow, 1996. http://theses.gla.ac.uk/1631/.

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The reactions of dichlorine and dibromine on compound semiconductors follow a pattern of halogenation of the substrate surface, followed by solvation of the halogenated products and removal of the secondary products in the etchant solutions. The reactions of hypochlorite and hydrogen peroxide follow a similar pattern, beginning with oxidation of the substrate surface, followed by subsequent hydration in the etchant solution and final product removal. The solubility of the products and the action of the polishing pad and abrasive are all critical to the passivation of the surface and the production of a polished substrate. The pH dependence of sodium hypochlorite is explained in terms of its composition. At low pH (<8) the main component of the etchant solution is dichlorine. At high pH (>8) the main component of the etchant solution is hypochlorite anion. Thus hypochlorite solution may be considered as a parallel to dibromine at low pH, but is more consistent with the behaviour of hydrogen peroxide at high pH. Thus, aqueous sodium hypochlorite solution may be formulated as part of the series O-O, O-X, X-X, where X represents a halogen. The General Model for Chemomechanical Polishing is formulated on the basis of the three stages of reaction observed for all the reagents examined: Oxidation of the substrate; solvation/hydration of the oxidation products; removal of the products from the substrate surface. Novel bromine-based organic reagents have been designed, synthesised and used to etch and polish gallium arsenide and cadmium telluride substrates. These compounds have shown that properties such as stock removal rate, pH dependence and selectivity may be predicted and even designed into etchants to produce the optimum conditions for polishing a given substrate.

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Books on the topic "Chemomechanical"

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Borckmans, P., P. De Kepper, A. R. Khokhlov, and S. Métens, eds. Chemomechanical Instabilities in Responsive Materials. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2993-5.

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Chemomechanical Instabilities In Responsive Materials. Springer, 2009.

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Chemomechanical Instabilities In Responsive Materials. Springer, 2009.

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Book chapters on the topic "Chemomechanical"

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Loret, Benjamin, and Fernando M. F. Simões. "Electro-chemomechanical couplings." In Biomechanical Aspects of Soft Tissues, 439–84. Boca Raton : Taylor & Francis, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315110783-15.

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Chandrasekhar, Prasanna. "Electrochemomechanical and Chemomechanical Devices." In Conducting Polymers, Fundamentals and Applications, 563–72. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5245-1_21.

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Métens, Stéphane, Sébastien Villain, and Pierre Borckmans. "Chemomechanical Dynamics of Responsive Gels." In Chemomechanical Instabilities in Responsive Materials, 139–73. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2993-5_6.

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Loret, Benjamin, and Fernando M. F. Simões. "Chemomechanical couplings in articular cartilages." In Biomechanical Aspects of Soft Tissues, 485–530. Boca Raton : Taylor & Francis, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315110783-16.

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Chandrasekhar, Prasanna. "Electrochemomechanical, Chemomechanical, and Related Devices." In Conducting Polymers, Fundamentals and Applications, 685–93. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-69378-1_42.

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De Kepper, P., J. Boissonade, and I. Szalai. "From Sustained Oscillations to Stationary Reaction-Diffusion Patterns." In Chemomechanical Instabilities in Responsive Materials, 1–37. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2993-5_1.

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Sekimoto, Ken. "Internal Stress as a Link Between Macroscale and Mesoscale Mechanics." In Chemomechanical Instabilities in Responsive Materials, 241–50. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2993-5_10.

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Misbah, Chaouqi. "On Some Passive and Active Motion in Biology." In Chemomechanical Instabilities in Responsive Materials, 251–73. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2993-5_11.

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Yoshida, Ryo. "Mechanochemical Instabilities in Active Gels." In Chemomechanical Instabilities in Responsive Materials, 39–56. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2993-5_2.

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Borckmans, P., and S. Métens. "An Excursion in Theoretical Non Linear Chemistry: From Oscillations to Turing Patterns." In Chemomechanical Instabilities in Responsive Materials, 57–94. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2993-5_3.

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Conference papers on the topic "Chemomechanical"

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Likhite, R., S. S. Pandey, A. Banerjee, H. Kim, and C. H. Mastrangelo. "Amplified chemomechanical comb gas sensor." In 2016 IEEE SENSORS. IEEE, 2016. http://dx.doi.org/10.1109/icsens.2016.7808784.

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Narita, Tetsuharu, Jianping Gong, and Yoshihito Osada. "Chemomechanical behaviors of polymer gels by surfactant binding." In 1999 Symposium on Smart Structures and Materials, edited by Yoseph Bar-Cohen. SPIE, 1999. http://dx.doi.org/10.1117/12.349700.

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Sundaresan, Vishnu Baba, and Hao Zhang. "Chemomechanical Transduction in Hybrid Bio-Derived Conducting Polymer Actuator." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3630.

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Biological ion transport has inspired recent developments in smart materials. The work by Leo and co-workers, Bailey and co-workers has demonstrated the feasibility to design engineered systems using biological ion transporters. The biological and bio-inspired systems utilize ion transport across a barrier membrane for energy conversion. Among smart materials, ionic-active materials demonstrate electromechanical coupling using ion transport across the thickness of the polymer. Inspired by the resemblance between ionic interaction in a conducting polymer and biological membranes, this paper presents a novel actuation mechanism that uses ion transport through a biological membrane to produce shape changes in a conducting polymer actuator. This paper presents the basic architecture, the physics of transduction and analysis of extensional and bending actuation in the hybrid bio-polymer actuator. An extensional actuator of size 1 cm × 1 cm × 1 μm is theoretically found to generate 135 mPa of blocked stress. A bimorph bending actuator of dimensions 10 mm × 1 mm × 2 μm is theoretically found to produce a free-displacement of 0.5 mm using biochemical gradients.

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Li, Yali, and N. C. Goulbourne. "Electro-Chemo-Mechanical Modeling of the Artery Myogenic Transient and Steady-State Response." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-39237.

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Active contraction of smooth muscle results in the myogenic response and vasomotion of arteries, which adjusts the blood flow and nutrient supply of the organism. It is a multiphysic process coupled electrical and chemical kinetics with mechanical behavior of the smooth muscle. This paper presents a new constitutive model for the media layer of the artery wall to describe the myogenic response of artery wall for different transmural pressures. The model includes two major components: electrobiochemical, and chemomechanical parts. The electrochemical model is a lumped Hodgkin-Huxley-type cell membrane model for the nanoscopic ionic currents: calcium, sodium, and potassium. The calculated calcium concentration serves as input for the chemomechanical portion of the model; its molecular binding and the reactions with other enzyme cause the relative sliding of thin and thick filaments of the contractile unit. In the chemomechanical model, a new nonlinear viscoelastic model is proposed using a continuum mechanics approach to describe the time varying behavior of the smooth muscle. Specifically, this model captures the filament overlap effect, active stress evolution, initial velocity, and elastic recoil in the media layer. The artery wall is considered as a thin-walled cylindrical tube. Using the proposed constitutive model and the thin-walled equilibrium equation, the myogenic response is calculated for different transmural pressures. The integrated model is able to capture the pressure-diameter transient and steady-state relationship.

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Cannon, Bennion R., Spencer P. Magleby, Larry L. Howell, Guilin Jiang, Travis L. Niederhauser, and Matthew R. Linford. "Influence of Scribe Speed and Force on Chemomechanical Nanofunctionalized Features." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33554.

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Researchers at Brigham Young University have recently developed a new method for preparing monolayer films on silicon surfaces. The method consists of wetting the wafer with a reactive organic liquid, mechanically scribing a feature on the surface of the wafer while it is immersed, and cleaning the surface to remove the organic liquid and any silicon particles that are produced by scribing. The objective of this paper is to present preliminary results on understanding how the scribed features and their performance are affected by the mechanical characteristics of the scribing system. Performance is simply judged here by the amount of water a hydrophobic square (corral) can hold. Testing was performed to determine the influence of tip force and scribing speed on the geometry and performance of the scribed lines. Lower forces produced smoother lines, however the corrals that were formed using a high force were shown to hold the most water.

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Klein, Claude A., and Frederick Schmid. "Weibull statistical analysis of sapphire strength improvement through chemomechanical polishing." In Defense and Security, edited by Randal W. Tustison. SPIE, 2005. http://dx.doi.org/10.1117/12.603271.

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Choi, Jun-Kyu, and Junghoon Lee. "Membrane-based chemomechanical transducer for the detection of aptamer-protein binding." In 2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2015. http://dx.doi.org/10.1109/memsys.2015.7050926.

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Sundaresan, Vishnu Baba, and Donald J. Leo. "Modeling and Characterization of a Chemomechanical Actuator Based on Protein Transporters." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43712.

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Plants and animal cells are naturally occurring actuators that exhibit force and motion driven by fluid transport through the cell membrane. The protein transporters embedded in the cell membrane serve as the selective gateway for ion and fluid transport. The actuator presented in this work generates force and deformation from mass transport through an artificial membrane with protein transporters extracted from plant cell membranes. The artificial membrane is formed from purified 1-Palmitoyl-2-Oleoyl-sn-Glycero-3-[Phospho-L-Serine] (Sodium Salt) (POPS), 1-Palmitoyl-2-Oleoyl-sn-Glycero-3-Phosphoethanolamine (POPE) lipids and supported on a porous substrate. The protein transporter used in the actuator membrane is a proton-sucrose cotransporter, SUT4, extracted from yeast cells that genetically modified to grow the cotransporter in their cell membranes. The SUT4 transporter conducts proton and sucrose from the side of the membrane with higher concentration and carries water molecules across the membrane. It is observed from transport characterization experiments that fluid flux through the membrane varies with the applied sucrose concentration and hence is chosen as the control stimulus in the actuator. A modified four-state facilitated diffusion model is applied to the transport characterization data to compute the two characteristic parameters for fluid transport, saturation concentration and translocation rate, through the membrane. The flux rate through the membrane is observed to increase with the concentration till a particular value and saturates at a higher concentration. The concentration at which the flux rate through the membrane saturates is referred to as the saturation concentration. The saturation concentration for the actuator is experimentally found to be 6±0.6mM sucrose on the side with lower pH. The corresponding maximum translocation rate is found to be 9.6±1.2 nl/μ.cm2.min. The maximum steady state deformation produced by the actuator is observed at 30 mM sucrose that corresponds to a force of 0.89 mN.

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Seo, Min-Ho, Kyungnam Kang, Jae-Shin Lee, Yongrok Jeong, Seunghye Lee, Inkyu Park, and Jun-Bo Yoon. "Self-Powered, Ultra-Reliable Hydrogen Sensor Exploiting Chemomechanical Nano-Transducer and Solar-Cell." In 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII). IEEE, 2019. http://dx.doi.org/10.1109/transducers.2019.8808208.

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BARKALINE, V., and A. CHASHINSKI. "CHEMOMECHANICAL PROPERTIES OF ORDERED CARBON NANOTUBE ARRAYS AND THEIR PROSPECTS IN ACOUSTIC GAS SENSORICS." In Proceedings of the International Conference on Nanomeeting 2007. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812770950_0134.

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Reports on the topic "Chemomechanical"

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Choens, Robert Charles, Anastasia Gennadyevna Ilgen, Carlos F. Jove-Colon, Jennifer Wilson, and Moo Y. Lee. ChemoMechanical Controls on Induced Seismicity. Office of Scientific and Technical Information (OSTI), September 2018. http://dx.doi.org/10.2172/1474256.

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Quock, Ryan L. Microleakage in chemomechanical and chemotherapeutic approaches to Atraumatic Restorative Treatment. Science Repository OU, December 2018. http://dx.doi.org/10.31487/j.ord.2018.01.002.

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Boulatov, Roman, and Charles Lee. New Method to Acquire Chemomechanical Parameters of Diverse Chemical Reactions. Fort Belvoir, VA: Defense Technical Information Center, January 2011. http://dx.doi.org/10.21236/ada563087.

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Stubbins, James, Andrew Gewirth, Huseyin Sehitoglu, Petros Sofronis, and Ian Robertson. Understanding Fundamental Material Degradation Processes in High Temperature Aggressive Chemomechanical Environments. Office of Scientific and Technical Information (OSTI), January 2014. http://dx.doi.org/10.2172/1116532.

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