Relevant bibliographies by topics / Ion-sensitive

Academic literature on the topic 'Ion-sensitive'

Author: Grafiati
Published: 14 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Ion-sensitive.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Ion-sensitive"

1

Getchell, Thomas V. "Sensitive ion channels." NeuroReport 8, no. 5 (March 1997): i. http://dx.doi.org/10.1097/00001756-199703240-00052.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Eberhart, Robert C. "FET Ion-Sensitive Sensors." IEEE Engineering in Medicine and Biology Magazine 4, no. 1 (March 1985): 27–30. http://dx.doi.org/10.1109/memb.1985.5006136.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Peers, C. "Oxygen-sensitive ion channels." Trends in Pharmacological Sciences 18, no. 11 (November 1, 1997): 405–8. http://dx.doi.org/10.1016/s0165-6147(97)01120-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Peers, Chris. "Oxygen-sensitive ion channels." Trends in Pharmacological Sciences 18, no. 4 (July 1997): 405–8. http://dx.doi.org/10.1016/s0165-6147(97)90669-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Amemiya, Hiroshi. "Negative Ion-Sensitive Probe." Japanese Journal of Applied Physics 27, Part 1, No. 10 (October 20, 1988): 1966–75. http://dx.doi.org/10.1143/jjap.27.1966.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Jan, Lily Yeh, and Yuh Nung Jan. "Voltage-sensitive ion channels." Cell 56, no. 1 (January 1989): 13–25. http://dx.doi.org/10.1016/0092-8674(89)90979-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Tsushima, Akira, and Yuichi Tayama. "Ion Temperature Measurement Using Ion-Sensitive Probe." Japanese Journal of Applied Physics 44, no. 6A (June 10, 2005): 4128–32. http://dx.doi.org/10.1143/jjap.44.4128.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Kormosh, Zholt, Lyudmila Savchuk, Natalia Kormosh, Mikola Shevchuk, Katherina Lyushuk, Tanya Savchuk, and Svitlana Korolchuk. "METFORMIN-SENSITIVE ION-SELECTIVE ELECTRODE." Scientific Bulletin of the Uzhhorod University. Series «Chemistry» 47, no. 1 (September 23, 2022): 70–77. http://dx.doi.org/10.24144/2414-0260.2022.1.70-77.

Full text
Abstract:
Metformin in its protonated form as metformin hydrochloride is used worldwide as an advanced antidiabetic drug for type 2 diabetes. Hyperinsulinemia and insulin resistance of cells are the main causes of this disease. For patients with diabetes, metformin hydrochloride (MET) works by improving cell sensitivity to insulin. It has been shown that metformin with methyl orange (MO) forms an ionic associate that can be isolated in solid form and is suitable for the creation of plasticized membrane potentiometric metformin-sensitive sensors. The energy efficiency of IA formation is substantiated by the method of mathematical modeling. Molecular modeling of MO- + MET+ systems and related calculations were performed using the PM3 method for various initial variants of counter ion relative to each other (single point procedure). Geometric optimization of ions was performed by the method of molecular mechanics MM+. The standard enthalpy (ΔH0) of ion formation and the association “MET+ + MO-” was determined by the semi-empirical method PM3. The difference in the energy of formation of the ionic associate and the sum of the energies of formation of its components is 258 kJ/mol. Therefore, the process of IA formation is thermodynamically advantageous. Modeling and optimization of membrane composition is carried out. The results of the study of the influence of the nature of plasticizers on the electroanalytical properties of the developed sensors indicate that the best plasticizer for the system is TCP or DNF. For these solvents, the product of the dielectric constant and Rohrschneider polarity (ε × PR) is 123.5 and 175, respectively. For plasticizers that were less effective (DBF and DEF), these values are 235.6 and 326 respectively. For membranes with the same content of plasticizer of one homologous series (DEF, DBF, DOF, DNF), the slope of the Nernst function decreases with increasing dielectric constant of the plasticizer solvent. It is shown that the working pH range of the electrode is from 2 to 11. The drift potential does not exceed 1-3 mV/day. Stable values of electrode potentials are set for 5-15 s. The stability of the electroanalytical characteristics of the optimized membranes can be traced for at least three months. The developed sensors show satisfactory selectivity in relation to a number of substances and ions. The 300-1000 amount of glucose, starch, polyvinyl alcohol, Na+, K+, Mg2+, Ca2+, Ba2+ ions do not interfere with MET determination. This, in turn, allows the practical use of developed MET-sensitive sensors in a variety of objects. A method of potentiometric determination of metformin has been developed, which has been tested in its determination in dosage forms.
APA, Harvard, Vancouver, ISO, and other styles
9

van den Vlekkert, H. H. "ION-SENSITIVE FIELD EFFECT TRANSISTORS." Acta Horticulturae, no. 304 (March 1992): 113–26. http://dx.doi.org/10.17660/actahortic.1992.304.12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Hueting, R. J. E., S. E. J. Vincent, J. G. Bomer, R. G. P. Sanders, and W. Olthuis. "Ion-Sensitive Gated Bipolar Transistor." IEEE Transactions on Electron Devices 66, no. 10 (October 2019): 4354–60. http://dx.doi.org/10.1109/ted.2019.2933666.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Ion-sensitive"

1

Ritjareonwattu, Supachai. "Ion sensitive organic field effect transistors." Thesis, Durham University, 2011. http://etheses.dur.ac.uk/3292/.

Full text
Abstract:
Ion sensitive organic field-effect transistors (ISOFETs) with a metal–oxide–semiconductor field-effect transistor (MOSFET) architecture have been fabricated by using poly(3-hexylthiophene) (P3HT) and poly(methyl methacrylate) (PMMA) as the semiconductor and dielectric layers, respectively. To avoid any pin-holes in the dielectric layer, the ISOFET was coated by two separate PMMA layers. An Ag/AgCl double-junction reference electrode was used as the gate. The results show that the uncoated ISOFET exhibited transistor behaviour in aqueous solutions. However, these devices possessed a small sensitivity of about 0.5 nA dec-1 to H+, K+ and Na+ ions. Langmuir-Blodgett membranes were then used to improve the ISOFET response to the target ions in solution. By coating the gate dielectric (PMMA) with an LB membrane of pure arachidic acid (AA), the ISOFETs showed a significantly higher sensitivity to H+ ions of about 3.5 nA pH-1, but no improvement in the pK response (< 0.5 nA dec-1). The compact ionised layers of carboxylic acid head groups were thought to lead to the improvement in the pH sensitivity; however, the layers of long hydrocarbon chains prevented large monovalent ions, such as K+ and Na+, from interacting with the ionised carboxylic acid head groups. ISOFETs coated with an arachidic acid/valinomycin (AA/val) mixture did not show any selectivity to K+ ions, but exhibited enhanced sensitivities to both K+ and Na+ ions. Instead of trapping K+ ions, the valinomycin molecules in the AA membrane were thought to disrupt the membrane architecture and provide ion-leakage channels. Pure valinomycin-coated ISOFETs also revealed enhancements in both sensitivity and selectivity to K+ ions over Na+. This may be due to the fact that the cavity in the valinomycin molecules can accommodate a K+ ion but not a Na+ ion. To study facilitated K+ transport across the membrane, LB films of AA/val mixture and pure valinomycin were coated on porous supports. The responses of both uncoated and coated membranes were similar. After deposition, collapse of the LB film into the pores may provide leakage channels. This probably led to the observed gradual decrease of the potentials across the membranes.
APA, Harvard, Vancouver, ISO, and other styles
2

Wilson, James Charles. "Solid state contacts to ion sensitive glass." Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/12154.

Full text
Abstract:
There have been a number of attempts since the inception of the glass electrode to replace the internal filling solution with a solid state form of contact. These have included both metallic and non-metallic materials. In the present work such contacts are reviewed, the nature of the materials, and conduction mechanisms between the contact and glass are discussed. Noble metal contacts alone are not expected to give a reproducible performance because of the lack of a common charge carrier which would allow conduction across the interface. However insertion of a non-metallic transition material which contains charge carriers common to both metal and glass may lead to more predictable performance. The materials, sodium tungsten bronze, iron-aluminium-sodium silicate glass, and various silver salts were interposed between a metal conductor and ion sensitive glass. Potentiometric measurements were made to determine sensitivity and time dependence of the output potential. These revealed that both the sodium tungsten bronze and iron-aluminium-sodium silicate glass gave improved performance over noble metal contacts. The silver salt contacts gave variable performance but it was shown that composite silver salts led to greater predictability of the value of the potential. Spectroscopic measurements were made to allow association of the observed concentration changes at the interface with potentiometric data and contribute to elucidation of reaction mechanisms. It was possible to relate the observed potential changes for silver halides with the increase in silver metal content in the halide layer. Interfacial conduction mechanisms remain unclear but charge transfer is most likely to occur through ionic conduction of sodium or silver ions across the interface. Sodium containing contacts, particularly iron-aluminium-sodium silicate glass, appeared to give a more stable output potential than silver containing contacts. Fabrication of an all-solid-state glass electrode from the former class of materials may be both simpler and more likely to achieve a reliable sensor than from the latter.
APA, Harvard, Vancouver, ISO, and other styles
3

Rodrigues, Frâncio Souza Berti. "Fabrication of ion sensitive field effect transistors." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/183198.

Full text
Abstract:
Transistores de Efeito de Campo Sensíveis a Íons (ISFETs) revolucionaram a tecnologia de sensores químicos e de pH por serem pequenos e compatíveis com tecnologias de microfabricação em grande escala. Nós desenvolvemos uma metodologia para fabricar e caracterizar sensores ISFET para medida de pH no laboratório de microeletrônica da UFRGS. Sensores ISFET do tipo NMOS com camadas de silica e alumina foram fabricados com tecnologa CMOS padrão. Transistores de W=1000 m e L=10 m foram fabricados em conjunto para monitorar o processo de fabricação através de medidas de Capacitância- Tensão (C-V) e Corrente-Tensão (I-V). Os dispositivos foram colados em suportes de circuito impresso, manualmente microsoldados e encapsulados com cola epoxy. Com o dispotivo na ponta, o suporte foi conectado a um Analisador de Parâmetros de Semicondutores em conjunto com um eletrodo de referência comercial de Ag/AgCl e imersos em soluções de pH diferente para a realização de medidas de pH. A sensibilidade à variação de pH, definida como a variação na tensão de limiar devido a presença do eletrólito, para os sensores de silica foi de 30mV/pH em ácidos e 24mV/pH para bases. Sensores de alumina tiveram uma performance muito superior e exibiram sensibilidade de 32mV/pH em ácidos e 48mV/pH em bases. A tecnologia de fabricação e o conhecimento experimental desenvolvidos nesse trabalho fornecem uma fundação essencial para projetos de pesquisa locais que buscam a aplicação de sensores de estado sólido no sensoriamento de sistemas químicos ou biológicos.
APA, Harvard, Vancouver, ISO, and other styles
4

James, A. P. "Equilibrium and swelling properties of ion-sensitive holograms." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.605028.

Full text
Abstract:
Polymer gels could be used as chemical and biological sensors should the technology to measure their volume change in response to analytes be fully developed. Optical approaches based on thin films, synthetic opals, inverse opals and holographic sensors offer the opportunity to allow colorimetric analysis of polymer gel swelling. The diffraction from a holographic sensor with primary amine functionalities was found to be narrow band in wavelength, 15 nm, and angle, 0.7°, and the presence of side-lobes on the spectra were explained in terms of coupled wave theory. During pH-jump induced volume change the diffraction spectra from the holographic sensor developed crenulations which were dependent on hologram thickness and observation angle but largely independent of buffer strength. Through analysis of the kinetics and spectra an integrated model based on Crick’s solution for diffusion into a thin film could explain both the sigmoidal kinetics observed, and the spectral crenulations. The model described the initial rapid progress of an ionisation front moving through the gel, followed by the slow diffusion of analyte in a longer second phase. A panel of polymers containing primary amines and the carbonate ionophore trifluoroacetylbenzoate (TFAB) in poly(2-hydroxyethyl methacrylate). (pHEMA) and polyacrylamide (pAAm) copolymers was produced. Their response in relation to temperature, ionic strength, sulfate and aqueous carbon dioxide was examined. It was found that temperature responsive was a good indication of response to analytes. Which may, in-part, be due to the dominance of polymer-solvent mixing terms in determining response at high ionic strength. pHEMA holograms were insensitive to the identity and valency of the ions and pAAm was responsive to these conditions as determined by the relative “salting-out” potential of the ions. However, almost in contradiction to this trend, the influence of ionic strength was ten times lower on pAAm relative to pHEMA. The sensitivity to specific ions and the relative insensitivity of pAAm holograms suggest that pHEMA may have more potential as a basis for holographic sensors.
APA, Harvard, Vancouver, ISO, and other styles
5

McCavera, Samantha J. C. "An invermectin sensitive ion channel from haemonchus contortus." Thesis, University of Bath, 2008. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.512265.

Full text
Abstract:
The avermectins (ivermectin, doramectin etc) and milbemycins are effective anthelmintics used widely in animal and human medicine for the past twenty years. The actual site of action of the avermectins on the GluCl is unclear, but binding studies have concluded that it does not share a binding site with glutamate. The GluCl channels have been well characterised in Caenorhabditis elegans and are beginning to be characterised in parasitic nematode species such as Haemonchus contortus, Dirofilaria immitis and Cooperia oncophora. The aim of this project was to characterise the H. contortus GluClα3B subunit and its interactions with agonists, glutamate and ivermectin using electrophysiology to study Xenopus oocytes expressing GluClα3B homomeric channels and ligand binding studies on COS-7 cells expressing the subunits. Site–directed mutagenesis was used to introduce resistance associated candidate polymorphisms into the H. contortus GluClα3B subunit. The effects of these changes on the response to glutamate and ivermectin were assessed. One mutation found in IVR C. oncophora, L256F, confers a 3-fold loss of sensitivity to glutamate and a 6.5 fold loss of sensitivity to IVM. This mutation is found in the C-terminal area of the extracellular region of the channel and, from homology modelling, we know it lies in close proximity and possibly interferes with another candidate mutation V235A, and the Cysteine residue at position 192 which forms one side of the structurally significant disulphide bridge. Further introduction of different mutations at this position showed the larger the substituted amino acid, the greater the effect on IVM sensitivity. Another amino acid substitution (T300S) results in the prohibition of a functional channel. The protein is produced and is able to bind IVM with high affinity but does not create a functional channel. These data show that polymorphisms found in field isolates of parasites can have a significant effect on GluCl channels and may contribute to drug resistance.
APA, Harvard, Vancouver, ISO, and other styles
6

Valdes-Perezgasga, Francisco. "Intramyocardial pH measurements using ion-sensitive field effect transistors." Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254191.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Fan, H. C. "Modulation of the thermo- and hypotonicity-sensitive ion channel TRPV4." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598933.

Full text
Abstract:
In this thesis, the role of transient receptor potential vanilloid 4 (TRPV4) in mechanical hyperalgesia induced by inflammatory mediators and second-messenger pathways was investigated. The hypotonicity-activated [Ca2+]I increase in HEK293 cells transiently expressing TRPV4 was greatly enhanced after exposure to the PKC activator phorbol 12-myristate 13-acetate (PMA). The sensitization was significantly reduced in the presence of kinase inhibitors, including staurosporine, BIM, and rottlerin, suggesting that a PKC-mediated phosphorylation was involved, and could be PKCδ mediated. The sensitization induced by PMA was also significantly reduced by the mutation S162A/T175A/S189A. The phosphorylation level of TRPV4 was greatly enhanced with PMA treatment, and was significantly decreased by the application of the PKCδ-specific inhibitor rottlerin or with the mutant S162A/T175A/S189A. These results suggest that sensitization was mediated by phosphorylation by PKCδ of S162, T175 and S189. The hypotonicity-activated [Ca2+]i increase mediated by TRPV4 was enhanced after exposure to the cAMP activator forskolin (FSK). The sensitization was prevented in the presence of the selective PKA inhibitor H89. The sensitization induced by FSK was significantly reduced by the mutant S824A. The A kinase anchoring protein (AKAP) family is known to assemble a wide range of kinases, including PKA and PKC, into signalling complexes with appropriate targets. Functional studies using calcium imaging showed that AKAP79 overexpression enhanced sensitization of TRPV4 by FSK and PMA, while downregulation of AKAP79 using siRNA inhibited sensitization. TRPV4 coexpression with AKAP79 enhanced the phosphorylation induced by PMA, and the phosphorylation level significantly decreased in cells coexpressing TRPV4 and siRNA AKAP79. AKAP79 may be a critical component converging the effects of PKC and PKA on TRPV4.
APA, Harvard, Vancouver, ISO, and other styles
8

Eltony, Amira M. (Amira Madeleine). "Sensitive, 3D micromotion compensation in a surface-electrode ion trap." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/84871.

Full text
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages [47]-53).
Following successful demonstrations of quantum algorithms and error correction with a handful of trapped ions in a macroscopic, machined Paul trap, there is a growing effort to move towards microfabricated traps with all the electrodes on a single chip. These traps, known as surface-electrode ion traps, are more amenable to being shrunk in size and replicated, or integrated with optical components and electronic devices. However, in the shift towards surface-electrode traps, and as traps are miniaturized in general, laser beams are brought closer to electrode surfaces, exacerbating laser-induced charging. Because of their charge, trapped ions are extremely sensitive to stray charges that accumulate on the trap surface. The DC potentials caused by stray charge displace the ion from the null of the RF trapping field, resulting in a fast, driven motion of the ion (known as micromotion) which hinders quantum operations by broadening transitions and causing decoherence. In a surface trap, micromotion detection is difficult as the laser beams used for measurement typically cannot crash into the trap, obscuring ion offsets out of the trap plane. Existing methods for micromotion detection permit ion positioning accurate to the ground state wavepacket size (of order 10 nm), but cannot identify ion offsets out of the trap plane with the same accuracy. Schemes for sensitive compensation often have restrictive requirements such as access to a narrow atomic transition. We introduce a new approach, which permits out-of-plane micromotion compensation to within 10s of nanometers with minimal overhead. Our technique synchronously detects ion excitation along the trap axes when it is driven by secular-frequency sidebands added to the RF electrodes; the excitation amplitude is proportional to the offset from the RF null. We make a detailed theoretical comparison with other techniques for micromotion compensation and demonstrate our technique experimentally.
by Amira M. Eltony.
S.M.
APA, Harvard, Vancouver, ISO, and other styles
9

Lieu, Deborah Kuo-TI. "Regulation of flow-sensitive ion channels in vascular endothelial cells /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Premanode, Bhusana. "Current-mode readout toplogies for ion-sensitive field effect transistors." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500038.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Ion-sensitive"

1

Leuchtag, H. Richard, ed. Voltage-Sensitive Ion Channels. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-5525-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Giovanni, Biggio, and Capo Boi Conference on Neuroscience. (5th : 1987 : Villasimius, Italy), eds. Voltage-sensitive ion channels: Modulation by neurotransmitters and drugs. Padova, Italy: Liviana Editrice, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Tay, Andy Kah Ping. Acute and Chronic Neural Stimulation via Mechano-Sensitive Ion Channels. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-69059-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Leuchtag, H. Richard. Voltage-Sensitive Ion Channels: Biophysics of Molecular Excitability. Springer, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Voltage-Sensitive Ion Channels: Biophysics of Molecular Excitability. Springer, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Leuchtag, H. Richard. Voltage-Sensitive Ion Channels: Biophysics of Molecular Excitability. Springer London, Limited, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

(Editor), Stephen Moss, and Jeremy Henley (Editor), eds. Receptor and Ion-Channel Trafficking: Cell Biology of Ligand-Gated and Voltage Sensitive Ion Channels. Oxford University Press, USA, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Tay, Andy Kah Ping. Acute and Chronic Neural Stimulation via Mechano-Sensitive Ion Channels. Springer, 2018.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Tay, Andy Kah Ping. Acute and Chronic Neural Stimulation via Mechano-Sensitive Ion Channels. Springer, 2017.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Biggio, Giovanni. Voltage-sensitive Ion Channels: MODULATION BY NEUROTRANSMITTERS & DRUGS (SYMPOSIA IN NEUROSCIENCE). Edited by Giovanni Biggio. Springer, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Ion-sensitive"

1

Rüttinger, Hans-Hermann. "Ion-Sensitive Electrodes." In Springer Handbook of Electrochemical Energy, 207–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-46657-5_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Holzer, Peter. "Acid-Sensitive Ion Channels and Receptors." In Sensory Nerves, 283–332. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-79090-7_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Janata, J. "Transients in Ion-Sensitive Field Effect Transistors." In Ion Measurements in Physiology and Medicine, 17–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70518-2_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

González, Jesús E., Jennings Worley, and Fredrick Van Goor. "Ion Channel Assays Based on Ion and Voltage-sensitive Fluorescent Probes." In Expression and Analysis of Recombinant Ion Channels, 187–211. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527608095.ch8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Opitz, N., T. Porwol, E. Merten, and H. Acker. "Cytoplasmic Ion Imaging: Evidence for Intracellular Calibration Heterogeneities of Ion-Sensitive Fluoroprobes." In Fluorescence Microscopy and Fluorescent Probes, 107–12. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4899-1866-6_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Sutro, Jeffrey B., Bharathi S. Vayuvegula, Sudhir Gupta, and Michael D. Cahalan. "Voltage-Sensitive Ion Channels in Human B Lymphocytes." In Mechanisms of Lymphocyte Activation and Immune Regulation II, 113–22. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4757-5803-0_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Soni, Ankit, Anuja Paprikar, Neeraj Kaushal, and Senshang Lin. "pH- and Ion-Sensitive Materials for Controlled Drug Delivery." In Smart Nanomaterials in Biomedical Applications, 269–90. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-84262-8_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Hill, J. L., and L. S. Gettes. "Ion-Sensitive Plunge Wire Electrodes for Intramyocardial pH and K+ Determinations." In Ion Measurements in Physiology and Medicine, 85–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70518-2_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kettenmann, H., R. K. Orkand, and M. Schachner. "Potassium Uptake Mechanisms of Cultured Oligodendrocytes Studied with Ion-Sensitive Electrodes." In Ion Measurements in Physiology and Medicine, 194–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70518-2_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Esa, S. F. Mohammed, Khuan Y. Lee, R. Jarmin, and M. Yakup. "A Visual Basic Model for ISFET Sensitive to Histamine Ion." In IFMBE Proceedings, 900–903. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02913-9_232.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Ion-sensitive"

1

Tang, Wei, Jiaqing Zhao, Qiaofeng Li, and Xiaojun Guo. "Highly Sensitive Low Power Ion-sensitive Organic Thin-Film Transistors." In 2018 9th International Conference on Computer Aided Design for Thin-Film Transistors (CAD-TFT). IEEE, 2018. http://dx.doi.org/10.1109/cad-tft.2018.8608054.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Li, Hongmei, Md Sayful Islam, and Goutam Koley. "Graphene-based ion-sensitive field effect transistor." In 2017 75th Device Research Conference (DRC). IEEE, 2017. http://dx.doi.org/10.1109/drc.2017.7999422.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gong, Yuan. "Optofluidic catalytic laser for sensitive ion detection." In The 7th International Multidisciplinary Conference on Optofluidics 2017. Basel, Switzerland: MDPI, 2017. http://dx.doi.org/10.3390/optofluidics2017-04295.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kendrick, M. J., D. Gruss, D. H. McIntyre, O. Ostroverkhova, V. Bychkova, A. Shvarev, N. Pylypiuk, M. Koesdjojo, V. T. Remcho, and S. Prasad. "pH/ion sensitive nanoprobes with optical tweezers." In Conference on Lasers and Electro-Optics. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/cleo.2010.jwa82.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bendriaa, F., F. Le Bihan, A. C. Salaun, T. Mohammed-Brahim, and O. Bonnaud. "Highly sensitive suspended-gate ion sensitive transistor for the detection of pH." In Microtechnologies for the New Millennium 2005, edited by Carles Cane, Jung-Chih Chiao, and Fernando Vidal Verdu. SPIE, 2005. http://dx.doi.org/10.1117/12.607540.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Kulkarni, Atul, Hyeongkeun Kim, Hang Zang, Jae-Boong Choi, Byung Hee Hong, and Tae Sung Kim. "Graphene as ion sensitive film for ionic liquids." In 2010 Ninth IEEE Sensors Conference (SENSORS 2010). IEEE, 2010. http://dx.doi.org/10.1109/icsens.2010.5690240.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Zhujun, Zhang, and W. Rudolf Seitz. "Ion-Selective Sensing Based On Potential Sensitive Dyes." In 1988 Los Angeles Symposium--O-E/LASE '88, edited by Abraham Katzir. SPIE, 1988. http://dx.doi.org/10.1117/12.945258.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Hansknecht, J., P. Adderley, M. L. Stutzman, M. Poelker, Donald G. Crabb, Yelena Prok, Matt Poelker, Simonetta Liuti, Donal B. Day, and Xiaochao Zheng. "Sensitive Ion Pump Current Monitoring Using an In-House Built Ion Pump Power Supply." In SPIN PHYSICS: 18th International Spin Physics Symposium. AIP, 2009. http://dx.doi.org/10.1063/1.3215609.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Vilouras, Anastasios, and Ravinder Dahiya. "Compact model for flexible ion-sensitive field-effect transistor." In 2017 IEEE Biomedical Circuits and Systems Conference (BioCAS). IEEE, 2017. http://dx.doi.org/10.1109/biocas.2017.8325217.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Cumming, D. R. S., P. N. Shields, M. S. Piechocinski, and B. Nemeth. "High speed sensing using ion sensitive field effect transistors." In 2011 4th IEEE International Workshop on Advances in Sensors and Interfaces (IWASI). IEEE, 2011. http://dx.doi.org/10.1109/iwasi.2011.6004687.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Ion-sensitive"

1

Bodorkos, S., J. F. Bowring, and N. M. Rayner. Squid3: next-generation data processing software for sensitive high-resolution ion microprobe (SHRIMP). Geoscience Australia, 2020. http://dx.doi.org/10.11636/133870.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chen, J. Ion sensitive field effect transistors applied to the measurement of the pH of brines. Office of Scientific and Technical Information (OSTI), July 1991. http://dx.doi.org/10.2172/7121529.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Chen, Jie. Ion sensitive field effect transistors applied to the measurement of the pH of brines. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/10114381.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Miller, M. (Atom probe field-ion microscopy research on silicon carbide whiskers and evaluate the position sensitive atom probe). Office of Scientific and Technical Information (OSTI), October 1988. http://dx.doi.org/10.2172/5412227.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Stern, R. A. The GSC Sensitive High Resolution Ion Microprobe (SHRIMP): analytical techniques of zircon U-Th-Pb age determinations and performance evaluation. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1997. http://dx.doi.org/10.4095/209089.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Gottlieb, E. Sensitive High Resolution Ion Micro Probe (SHRIMP) data of outcrop samples from the western Brooks Range and central North Slope foothills, Alaska. Alaska Division of Geological & Geophysical Surveys, November 2012. http://dx.doi.org/10.14509/24667.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Mevarech, Moshe, Jeremy Bruenn, and Yigal Koltin. Virus Encoded Toxin of the Corn Smut Ustilago Maydis - Isolation of Receptors and Mapping Functional Domains. United States Department of Agriculture, September 1995. http://dx.doi.org/10.32747/1995.7613022.bard.

Full text
Abstract:
Ustilago maydis is a fungal pathogen of maize. Some strains of U. maydis encode secreted polypeptide toxins capable of killing other susceptible strains of U. maydis. Resistance to the toxins is conferred by recessive nuclear genes. The toxins are encoded by genomic segments of resident double-strande RNA viruses. The best characterized toxin, KP6, is composed of two polypeptides, a and b, which are not covalently linked. It is encoded by P6M2 dsRNA, which has been cloned, sequenced and expressed in a variety of systems. In this study we have shown that the toxin acts on the membranes of sensitive cells and that both polypeptides are required for toxin activity. The toxin has been shown to function by creating new pores in the cell membrane and disrupting ion fluxes. The experiments performed on artificial phospholipid bilayers indicated that KP6 forms large voltage-independent, cation-selective channels. Experiments leading to the resolution of structure-function relationship of the toxin by in vitro analysis have been initiated. During the course of this research the collaboration also yielded X-ray diffracion data of the crystallized a polypeptide. The effect of the toxin on the pathogen has been shown to be receptor-mediated. A potential receptor protein, identified in membrane fractions of sensitive cells, was subjected to tryptic hydrolysis followed by amino-acid analysis. The peptides obtained were used to isolate a cDNA fragment by reverse PCR, which showed 30% sequence homology to the human HLA protein. Analysis of other toxins secreted by U. maydis, KP1 and KP4, have demonstrated that, unlike KP6, they are composed of a single polypeptide. Finally, KP6 has been expressed in transgenic tobacco plants, indicating that accurate processing by Kex2p-like activity occurs in plants as well. Using tobacco as a model system, we determined that active antifungal toxins can be synthesized and targeted to the outside of transgenic plant cells. If this methodology can be applied to other agronomically crop species, then U. maydis toxins may provide a novel means for biological control of pathogenic fungi.
APA, Harvard, Vancouver, ISO, and other styles
8

Pell, Eva J., Sarah M. Assmann, Amnon Schwartz, and Hava Steinberger. Ozone Altered Stomatal/Guard Cell Function: Whole Plant and Single Cell Analysis. United States Department of Agriculture, December 2000. http://dx.doi.org/10.32747/2000.7573082.bard.

Full text
Abstract:
Original objectives (revisions from original proposal are highlighted) 1. Elucidate the direct effects O3 and H2O2 on guard cell function, utilizing assays of stomatal response in isolated epidermal peels and whole cell gas exchange. 2. Determine the mechanistic basis of O3 and H2O2 effects on the plasma membrane through application of the electrophysiological technique of patch clamping to isolated guard cells. 3. Determine the relative sensitivity of Israeli cultivars of economically important crops to O3 and determine whether differential leaf conductance responses to O3 can explain relative sensitivity to the air pollutant: transfer of technological expertise to Israel. Background to the topic For a long time O3 has been known to reduce gas exchange in plants; it has however been unclear if O3 can affect the stomatal complex directly. Ion channels are essential in stomatal regulation, but O3 has never before been shown to affect these directly. Major conclusions, solution, achievements 1. Ozone inhibits light-induced stomatal opening in epidermal peels isolated from Vicia faba, Arabidopsis thaliana and Nicotiana tabacum in V. faba plants this leads to reduced assimilation without a direct effect on the photosynthetic apparatus. Stomatal opening is more sensitive to O3 than stomatal closure. 2. Ozone causes inhibition of inward K+ channels (involved in stomatal opening) while no detectable effect is observed o the outward K+ channels (stomatal closure). 3. Hydrogen peroxide inhibits stomatal opening and induces stomatal closure in epidermal peels isolated from Vicia faba. 4. Hydrogen peroxide enhances stomatal closure by increasing K+ efflux from guard cells via outward rectifying K+ channels. 5. Based on epidermal peel experiments we have indirectly shown that Ca2+ may play a role in the guard cell response to O3. However, direct measurement of the guard cell [Ca2+]cyt did not show a response to O3. 6. Three Israeli cultivars of zucchini, Clarita, Yarden and Bareqet, were shown to be relatively sensitive to O3 (0.12 ml1-1 ). 7. Two environmentally important Israeli pine species are adversely affected by O3, even at 0.050 ml1-1 , a level frequently exceeded under local tropospheric conditions. P. brutia may be better equipped than P. halepensis to tolerate O3 stress. 8. Ozone directly affects pigment biosynthesis in pine seedlings, as well as the metabolism of O5 precursors, thus affecting the allocation of resources among various metabolic pathways. 9. Ozone induces activity of antioxidant enzymes, and of ascorbate content i the mesophyll and epidermis cells of Commelina communis L. Implications, both scientific and agricultural We have improved the understanding of how O3 and H2O2 do affect guard cell and stomatal function. We have shown that economical important Israeli species like zucchini and pine are relatively sensitive to O3.
APA, Harvard, Vancouver, ISO, and other styles
9

Upadhyaya, Shrini K., Abraham Shaviv, Abraham Katzir, Itzhak Shmulevich, and David S. Slaughter. Development of A Real-Time, In-Situ Nitrate Sensor. United States Department of Agriculture, March 2002. http://dx.doi.org/10.32747/2002.7586537.bard.

Full text
Abstract:
Although nitrate fertilizers are critical for enhancing crop production, excess application of nitrate fertilizer can result in ground water contamination leading to the so called "nitrate problem". Health and environmental problems related to this "nitrate problem" have led to serious concerns in many parts of the world including the United States and Israel. These concerns have resulted in legislation limiting the amount of nitrate N in drinking water to 10mg/g. Development of a fast, reliable, nitrate sensor for in-situ application can be extremely useful in dynamic monitoring of environmentally sensitive locations and applying site-specific amounts of nitrate fertilizer in a precision farming system. The long range objective of this study is to develop a fast, reliable, real-time nitrate sensor. The specific objective of this one year feasibility study was to explore the possible use of nitrate sensor based on mid-IR spectroscopy developed at UCD along with the silver halide fiber ATR (i.e. attenuated total internal reflection) sensor developed at TAU to detect nitrate content in solution and soil paste in the presence of interfering compounds. Experiments conducted at Technion and UCD clearly demonstrate the feasibility of detecting nitrate content in solutions as well as soil pastes using mid-IR spectroscopy and an ATR technique. When interfering compounds such as carbonates, bicarbonates, organic matter etc. are present special data analysis technique such as singular value decomposition (SYD) or cross correlation was necessary to detect nitrate concentrations successfully. Experiments conducted in Israel show that silver halide ATR fiber based FEWS, particularly flat FEWS, resulted in low standard error and high coefficient of determination (i.e. R² values) indicating the potential of the flat Fiberoptic Evanescent Wave Spectroscopy (FEWS) for direct determinations of nitrate. Moreover, they found that it was possible to detect nitrate and other anion concentrations using anion exchange membranes and M1R spectroscopy. The combination of the ion-exchange membranes with fiberoptices offers one more option to direct determination of nitrate in environmental systems.
APA, Harvard, Vancouver, ISO, and other styles
10

Guy, Charles, Gozal Ben-Hayyim, Gloria Moore, Doron Holland, and Yuval Eshdat. Common Mechanisms of Response to the Stresses of High Salinity and Low Temperature and Genetic Mapping of Stress Tolerance Loci in Citrus. United States Department of Agriculture, May 1995. http://dx.doi.org/10.32747/1995.7613013.bard.

Full text
Abstract:
The objectives that were outlined in our original proposal have largely been achieved or will be so by the end of the project in February 1995 with one exception; that of mapping cold tolerance loci based on the segregation of tolerance in the BC1 progeny population. Briefly, our goals were to 1) construct a densely populated linkage map of the citrus genome: 2) map loci important in cold and/or salt stress tolerance; and 3) characterize the expression of genes responsive to cold land salt stress. As can be seen by the preceding listing of accomplishments, our original objectives A and B have been realized, objective C has been partially tested, objective D has been completed, and work on objectives E and F will be completed by the end of 1995. Although we have yet to map any loci that contribute to an ability of citrus to maintain growth when irrigated with saline water, our very encouraging results from the 1993 experiment provides us with considerable hope that 1994's much more comprehensive and better controlled experiment will yield the desired results once the data has been fully analyzed. Part of our optimism derives from the findings that loci for growth are closely linked with loci associated with foliar Cl- and Na+ accumulation patterns under non-salinization conditions. In the 1994 experiment, if ion exclusion or sequestration traits are segregating in the population, the experimental design will permit their resolution. Our fortunes with respect to cold tolerance is another situation. In three attempts to quantitatively characterize cold tolerance as an LT50, the results have been too variable and the incremental differences between sensitive and tolerant too small to use for mapping. To adequately determine the LT50 requires many plants, many more than we have been able to generate in the time and space available by making cuttings from small greenhouse-grown stock plants. As it has turned out, with citrus, to prepare enough plants needed to be successful in this objective would have required extensive facilities for both growing and testing hardiness which simply were not available at University of Florida. The large populations necessary to overcome the variability we encountered was unanticipated and unforeseeable at the project's outset. In spite of the setbacks, this project, when it is finally complete will be exceedingly successful. Listing of Accomplishments During the funded interval we have accomplished the following objectives: Developed a reasonably high density linkage map for citrus - mapped the loci for two cold responsive genes that were cloned from Poncirus - mapped the loci for csa, the salt responsive gene for glutathione peroxidase, and ccr a circadian rhythm gene from citrus - identified loci that confer parental derived specific DNA methylation patterns in the Citrus X Poncirus cross - mapped 5 loci that determine shoot vigor - mapped 2 loci that influence leaf Na+ accumulation patterns under non-saline conditions in the BC1 population - mapped 3 loci that influence leaf Na+ accumulation paterns during salt sress - mapped 2 loci that control leaf Cl- accumulation patterns under non-saline conditions - mapped a locus that controls leaf Cl- accumulation patterns during salt stress Screened the BC1 population for growth reduction during salinization (controls and salinized), and cold tolerance - determined population variation for shoot/root ratio of Na+ and Cl- - determined levels for 12 inorganic nutrient elements in an effort to examine the influence of salinization on ion content with emphasis on foliar responses - collected data on ion distribution to reveal patterns of exclusion/sequestration/ accumulation - analyzed relationships between ion content and growth Characterization of gene expression in response to salt or cold stress - cloned the gene for the salt responsive protein csa, identified it as glutathione peroxidase, determined the potential target substrate from enzymatic studies - cloned two other genes responsive to salt stress, one for the citrus homologue of a Lea5, and the other for an "oleosin" like gene - cold regulated (cor) genes belonging to five hybridization classes were isolated from Poncirus, two belonged to the group 2 Lea superfamily of stress proteins, the others show no significant homology to other known sequences - the expression of csa during cold acclimation was examined, and the expression of some of the cor genes were examined in response to salt stress - the influence of salinization on cold tolerance has been examined with seedling populations - conducted protein blot studies for expression of cold stress proteins during salt stress and vice versa
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Ion-sensitive' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography