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Professor Ritu Kataky's Outputs (38)

A Gramicidin Analogue that Exhibits Redox Potential Dependent Cation Influx (2007)
Journal Article
Jackson, T., Sanderson, J., & Kataky, R. (2008). A Gramicidin Analogue that Exhibits Redox Potential Dependent Cation Influx. Sensors and Actuators B: Chemical, 130(2), 630-637. https://doi.org/10.1016/j.snb.2007.10.019

A synthetic analogue of gramicidin A, gram-2-(nicotinamidyl)ethyl carbamate (gAN) was found to regulate the influx of potassium ions depending on its redox state. At potentials less than −0.52 (±0.05) V, the nicotinamide group in gAN is reduced and a... Read More about A Gramicidin Analogue that Exhibits Redox Potential Dependent Cation Influx.

Conical recessed gold microelectrode arrays produced during photolithographic methods: characterisation and causes (2007)
Journal Article
Aguiar, F., Gallant, A., Rosamond, M., Rhodes, A., Wood, D., & Kataky, R. (2007). Conical recessed gold microelectrode arrays produced during photolithographic methods: characterisation and causes. Electrochemistry Communications, 9(5), 879-885. https://doi.org/10.1016/j.elecom.2006.11.023

In this work, surface imaging techniques such as scanning Kelvin nanoprobe (SKN), scanning electron microscopy (SEM) and white light interferometer microscopy show that conical recessed electrodes with gradient potential along the recessed walls are... Read More about Conical recessed gold microelectrode arrays produced during photolithographic methods: characterisation and causes.

Emulsion-templated porous materials (PolyHIPEs) for selective ion and molecular recognition and transport: applications in electrochemical sensing (2007)
Journal Article
Zhao, C., Danish, E., Cameron, N., & Kataky, R. (2007). Emulsion-templated porous materials (PolyHIPEs) for selective ion and molecular recognition and transport: applications in electrochemical sensing. Journal of materials chemistry, 17(23), 2446-2453. https://doi.org/10.1039/b700929a

Functionalised emulsion-templated polymers (PolyHIPEs) are reported as new materials for electroanalytical applications. PolyHIPEs, which are prepared from high internal phase emulsions (HIPEs), were tailored by optimisation of polymerisation conditi... Read More about Emulsion-templated porous materials (PolyHIPEs) for selective ion and molecular recognition and transport: applications in electrochemical sensing.

Structural investigations on quinone methides for understanding their properties in confined media. (2006)
Journal Article
Szarma, R., Batsanov, A., Kataky, R., & Baruah, J. (2006). Structural investigations on quinone methides for understanding their properties in confined media. Journal of Inclusion Phenomena and Macrocyclic Chemistry, 55(1-2), 1-9. https://doi.org/10.1007/s10847-005-9001-1

Encapsulation of 4−[(4′-hydroxy−3′,5′-dimethylphenyl)(aryl)-methylene]−2,6−dimethyl-cyclohexa−2,5−dienones (when aryl=4−hydroxyphenyl 1, 4−methoxyphenyl 2, 2,3,4-trimethoxy phenyl 3) by β-cyclodextrin is studied. The compound 2 is selectively encapsu... Read More about Structural investigations on quinone methides for understanding their properties in confined media..

An introduction to thiol redox proteins in the endoplasmic reticulum and a review of current electrochemical methods of detection of thiols (2006)
Journal Article
Kruusma, J., Benham, A. M., Gareth Williams, J., & Kataky, R. (2006). An introduction to thiol redox proteins in the endoplasmic reticulum and a review of current electrochemical methods of detection of thiols. Analyst, 131(4), 459-473. https://doi.org/10.1039/b515874e

This aim of this paper is to expound the complexity of thiol redox systems in the endoplasmic reticulum of eukaryotic cells to the electroanalytical community. A summary of the state of the art in electrochemical methods for detection of thiols gives... Read More about An introduction to thiol redox proteins in the endoplasmic reticulum and a review of current electrochemical methods of detection of thiols.

Mutations in the FAD binding domain cause stress-induced misoxidation of the endoplasmic reticulum oxidoreductase Ero1b (2006)
Journal Article
Dias-Gunasekara, S., van Lith, M., Williams, J., Kataky, R., & Benham, A. (2006). Mutations in the FAD binding domain cause stress-induced misoxidation of the endoplasmic reticulum oxidoreductase Ero1b. Journal of Biological Chemistry, 281(35), 25018-25025. https://doi.org/10.1074/jbc.m602354200

Disulfide bond catalysis is an essential component of protein biogenesis in the secretory pathway, from yeast through to man. In the endoplasmic reticulum (ER), protein-disulfide isomerase (PDI) catalyzes the oxidation and isomerization of disulfide... Read More about Mutations in the FAD binding domain cause stress-induced misoxidation of the endoplasmic reticulum oxidoreductase Ero1b.

Recommendation for measuring and reporting chloride by ISEs in undiluted serum, plasma or blood. (2006)
Journal Article
Ben Rayana, M., Burnett, R., Covington, A., D'Orazio, P., Fogh-Andersen, N., Jacobs, E., …St John, A. (2006). Recommendation for measuring and reporting chloride by ISEs in undiluted serum, plasma or blood. Clinical Chemistry and Laboratory Medicine, 44(3), 346-352. https://doi.org/10.1515/cclm.2006.060

The proposed recommendation for measuring and reporting chloride in undiluted plasma or blood by ion-selective electrodes (ISEs) will provide results that are identical to chloride concentrations measured by coulometry for standardized normal plasma... Read More about Recommendation for measuring and reporting chloride by ISEs in undiluted serum, plasma or blood..

Expression, interactions and dynamics of the oxidoreductase Ero1Lbeta (2006)
Journal Article
Dias-Gunasekara, S., van Lith, M., Kataky, R., Williams, G., & Benham, A. (2006). Expression, interactions and dynamics of the oxidoreductase Ero1Lbeta. FASEB Journal, 20(4), https://doi.org/10.1096/fasebj.20.4.a500-c

Protein oxidation in the Endoplasmic Reticulum (ER) is catalysed by Endoplasmic reticulum oxidoreductases (EROs) that donate disulfide bonds to (and accept electrons from) Protein Disulfide Isomerase (PDI). Eros are essential for viability and protei... Read More about Expression, interactions and dynamics of the oxidoreductase Ero1Lbeta.

Porous polymers by emulsion templating. (2005)
Journal Article
Barbetta, A., Carnachan, R., Smith, K., Zhao, C., Cameron, N., Kataky, R., …Swan, M. (2005). Porous polymers by emulsion templating. Macromolecular Symposia, 226(1), 203-212. https://doi.org/10.1002/masy.200550819

Highly porous and permeable polymers are produced by polymerisation of the continuous phase of high internal phase emulsions (HIPEs). The morphology and properties of the resulting PolyHIPE materials can be varied, allowing the materials to be optimi... Read More about Porous polymers by emulsion templating..

Modular assembly of a preorganised, ditopic receptor for dicarboxylates. (2005)
Journal Article
Filby, M., Humphries, T., Turner, D., Kataky, R., Kruusma, J., & Steed, J. (2006). Modular assembly of a preorganised, ditopic receptor for dicarboxylates. Chemical Communications, 2006(2), 156-158. https://doi.org/10.1039/b512779c

Two types of calix[4]arene derived hosts for anions with, respectively, 1,3-alternate and cone conformations have been prepared; the 1,3-alternate system binds dicarboxylate anions in a ditopic manner while the cone compounds are deprotonated by carb... Read More about Modular assembly of a preorganised, ditopic receptor for dicarboxylates..

Tissue-specific expression and dimerization of the endoplasmic reticulum oxidoreductase Erolb (2005)
Journal Article
Dias-Gunasekara, S., Gubbens, J., van Lith, M., Dunne, C., Williams, J., Kataky, R., …Benham, A. (2005). Tissue-specific expression and dimerization of the endoplasmic reticulum oxidoreductase Erolb. Journal of Biological Chemistry, 280(38), 33066-33075. https://doi.org/10.1074/jbc.m505023200

Endoplasmic reticulum oxidoreductases (Eros) are essential for the formation of disulfide bonds. Understanding disulfide bond catalysis in mammals is important because of the involvement of protein misfolding in conditions such as diabetes, arthritis... Read More about Tissue-specific expression and dimerization of the endoplasmic reticulum oxidoreductase Erolb.

Individually addressable recessed gold microelectrode arrays with monolayers of thio-cyclodextrin nanocavities (2005)
Journal Article
Grancharov, G., Khosravi, E., Wood, D., Turton, A., & Kataky, R. (2005). Individually addressable recessed gold microelectrode arrays with monolayers of thio-cyclodextrin nanocavities. Analyst, 130(10), 1351-1357. https://doi.org/10.1039/b506367a

Four, individually addressable 30 mu m diameter, e-beam deposited, gold microelectrodes recessed by 6 mm were suitably spaced on a single substrate to avoid diffusional overlap between each microelectrode. The single substrate device was functionalis... Read More about Individually addressable recessed gold microelectrode arrays with monolayers of thio-cyclodextrin nanocavities.

Examination of cobalt, nickel, copper and zinc(II) complex geometry and binding affinity in aqueous media using simple pyridylsulfonamide ligands (2003)
Journal Article
Congreve, A., Kataky, R., Knell, M., Parker, D., Puschmann, H., Senanayake, K., & Wylie, L. (2003). Examination of cobalt, nickel, copper and zinc(II) complex geometry and binding affinity in aqueous media using simple pyridylsulfonamide ligands. New Journal of Chemistry, 27(1), 98-106

The sixteen neutral ML2 complexes of Co, Ni, Cu and Zn(II) with the p-toluenesulfonamide and trifluoromethylsulfonamide derivatives of 2-aminomethylpyridine (L-1, L-2) and its 6-Me homologue (L-3, L-4) have been characterised by low temperature X-ray... Read More about Examination of cobalt, nickel, copper and zinc(II) complex geometry and binding affinity in aqueous media using simple pyridylsulfonamide ligands.

Potential of enzyme mimics in biomimetic sensors: a modified-cyclodextrin as a dehydrogenase enzyme mimic (2003)
Journal Article
Kataky, R., & Morgan, E. (2003). Potential of enzyme mimics in biomimetic sensors: a modified-cyclodextrin as a dehydrogenase enzyme mimic. Biosensors and Bioelectronics, 18(11), 1407-1417. https://doi.org/10.1016/s0956-5663%2803%2900077-0

This paper reports the application of a dehydrogenase enzyme mimic as a biomimetic sensor. The model compound investigated was a beta-cyclodextrin (P-CD) derivative with a nicotinamide group attached to the secondary face of a P-CD (Fig. 1g). It was... Read More about Potential of enzyme mimics in biomimetic sensors: a modified-cyclodextrin as a dehydrogenase enzyme mimic.

Sol gel-immobilised terbium complexes for luminescent sensing of dissolved oxygen by analysis of emission decay (2002)
Journal Article
Blair, S., Kataky, R., & Parker, D. (2002). Sol gel-immobilised terbium complexes for luminescent sensing of dissolved oxygen by analysis of emission decay. New Journal of Chemistry, 26(5), 530-535

Cationic terbium complexes bearing an N-methylphenanthridinium chromophore have been incorporated in sol gel thin films and their response characteristics analysed with respect to variations in dissolved oxygen concentration. Analysis of the emission... Read More about Sol gel-immobilised terbium complexes for luminescent sensing of dissolved oxygen by analysis of emission decay.

A biosensor for monitoring formaldehyde using a new lipophilic tetrathiafulvalene-tetracyanoquinodimethane salt and a polyurethane membrane (2002)
Journal Article
Kataky, R., Bryce, M., Goldenberg, L., Hayes, S., & Nowak, A. (2002). A biosensor for monitoring formaldehyde using a new lipophilic tetrathiafulvalene-tetracyanoquinodimethane salt and a polyurethane membrane. Talanta, 56(3), 451-458

A format for a disposable screen-printed biosensor was investigated for monitoring formaldehyde. The screen-printed sensor format comprised a working electrode (WE) modified with platinised carbon, a new lipophilic tetrathiafulvalene-tetracyanoquinod... Read More about A biosensor for monitoring formaldehyde using a new lipophilic tetrathiafulvalene-tetracyanoquinodimethane salt and a polyurethane membrane.

Narrow-range optical pH sensors based on luminescent europium and terbium complexes immobilized in a sol gel glass (2001)
Journal Article
Blair, S., Lowe, M., Mathieu, C., Parker, D., Senanayake, P., & Kataky, R. (2001). Narrow-range optical pH sensors based on luminescent europium and terbium complexes immobilized in a sol gel glass. Inorganic Chemistry, 40(23), 5860-5867

The metal-based emission of a series of luminescent europium and terbium complexes incorporating an aromatic chromophore is rendered pH-dependent either through perturbation of the aryl singlet or triplet energy or by modulating the degree of quenchi... Read More about Narrow-range optical pH sensors based on luminescent europium and terbium complexes immobilized in a sol gel glass.