All Outputs (54)

PDMS Microfluidic Device with an Integrated Optical Sensor for Determination of Zinc (II) in Pharmaceuticals: Toward the Production of Miniaturized Green Chemistry Analytical Systems (2009)
Journal Article
AlSuhaimi, A., Greenway, G. M., McCreedy, T., & Youngvises, N. (in press). PDMS Microfluidic Device with an Integrated Optical Sensor for Determination of Zinc (II) in Pharmaceuticals: Toward the Production of Miniaturized Green Chemistry Analytical Systems. Spectroscopy letters, 42(6-7), 370-375. https://doi.org/10.1080/00387010903187260

A simple miniaturized system was fabricated in general laboratory from polydimethylsiloxane (PDMS) according to a prototype casting and molding process permitting the construction of three-dimensional (3D) microchannel (100 mu m i.d.) with T-type net... Read More about PDMS Microfluidic Device with an Integrated Optical Sensor for Determination of Zinc (II) in Pharmaceuticals: Toward the Production of Miniaturized Green Chemistry Analytical Systems.

Development of a gel-to-gel electro-kinetic pinched injection method for an integrated micro-fluidic based DNA analyser (2009)
Journal Article
Oakley, J. A., Robinson, S., Dyer, C. E., Greenman, J., Greenway, G. M., & Haswell, S. J. (2009). Development of a gel-to-gel electro-kinetic pinched injection method for an integrated micro-fluidic based DNA analyser. Analytica Chimica Acta, 652(1-2), 239-244. https://doi.org/10.1016/j.aca.2009.07.063

An integrated gel supported micro-fluidic system is reported, in which PCR products can be efficiently injected into a capillary electrophoresis device. The gel supported system is designed to provide greater stability to reagents during long periods... Read More about Development of a gel-to-gel electro-kinetic pinched injection method for an integrated micro-fluidic based DNA analyser.

Development of enzyme immobilized monolith micro-reactors integrated with microfluidic electrochemical cell for the evaluation of enzyme kinetics (2009)
Journal Article
Greenway, G., Haswell, S. J., & He, P. (2010). Development of enzyme immobilized monolith micro-reactors integrated with microfluidic electrochemical cell for the evaluation of enzyme kinetics. Microfluidics and Nanofluidics, 8(5), 565-573. https://doi.org/10.1007/s10404-009-0476-8

This paper describes a simple and efficient method for producing an on-chip enzyme immobilized monolith micro-reactor that integrates a microfluidic electrochemical cell for rapid characterization of enzymatic kinetics. The monolith was generated usi... Read More about Development of enzyme immobilized monolith micro-reactors integrated with microfluidic electrochemical cell for the evaluation of enzyme kinetics.

Electrogenerated chemiluminescence at droplet-modified electrodes: towards biphasic pKₐ measurement via proton-coupled electron transfer at liquid|liquid interfaces (2009)
Journal Article
Lledo-Fernandéz, C., Hatay, I., Ball, M. J., Greenway, G. M., & Wadhawan, J. (2009). Electrogenerated chemiluminescence at droplet-modified electrodes: towards biphasic pKₐ measurement via proton-coupled electron transfer at liquid|liquid interfaces. New journal of chemistry = Nouveau journal de chimie, 33(4), 749-759. https://doi.org/10.1039/b810844g

This preliminary work reports, for the first time, electrogenerated chemiluminescence (ECL) at droplet-modified electrodes. The system involves oxidation of aqueous tris(2,2′-bipyridyl)ruthenium(ii) ions at a glassy carbon electrode on which a random... Read More about Electrogenerated chemiluminescence at droplet-modified electrodes: towards biphasic pKₐ measurement via proton-coupled electron transfer at liquid|liquid interfaces.

The use of carrier RNA to enhance DNA extraction from microfluidic-based silica monoliths (2009)
Journal Article
Shaw, K. J., Thain, L., Dyer, C., Docker, P. T., Greenman, J., Greenway, G. M., & Haswell, S. J. (2009). The use of carrier RNA to enhance DNA extraction from microfluidic-based silica monoliths. Analytica Chimica Acta, 652(1-2), 231-233. https://doi.org/10.1016/j.aca.2009.03.038

DNA extraction was carried out on silica-based monoliths within a microfluidic device. Solid-phase DNA extraction methodology was applied in which the DNA binds to silica in the presence of a chaotropic salt, such as guanidine hydrochloride, and is e... Read More about The use of carrier RNA to enhance DNA extraction from microfluidic-based silica monoliths.

Development of a bi-functional silica monolith for electro-osmotic pumping and DNA clean-up/extraction using gel-supported reagents in a microfluidic device (2009)
Journal Article
Oakley, J. A., Shaw, K. J., Docker, P. T., Dyer, C. E., Greenman, J., Greenway, G. M., & Haswell, S. J. (2009). Development of a bi-functional silica monolith for electro-osmotic pumping and DNA clean-up/extraction using gel-supported reagents in a microfluidic device. Lab on a chip, 9(11), 1596-1600. https://doi.org/10.1039/b820553a

A silica monolith used to support both electro-osmotic pumping (EOP) and the extraction/elution of DNA coupled with gel-supported reagents is described. The benefits of the combined EOP extraction/elution system were illustrated by combining DNA extr... Read More about Development of a bi-functional silica monolith for electro-osmotic pumping and DNA clean-up/extraction using gel-supported reagents in a microfluidic device.

Simple practical approach for sample loading prior to DNA extraction using a silica monolith in a microfluidic device (2009)
Journal Article
Shaw, K. J., Docker, P. T., Haswell, S. J., Joyce, D. A., Dyer, C. E., Greenman, J., & Greenway, G. M. (2009). Simple practical approach for sample loading prior to DNA extraction using a silica monolith in a microfluidic device. Lab on a chip, 9(23), 3430-3432. https://doi.org/10.1039/b913309g

A novel DNA loading methodology is presented for performing DNA extraction on a microfluidic system. DNA in a chaotropic salt solution was manually loaded onto a silica monolith orthogonal to the subsequent flow of wash and elution solutions. DNA was... Read More about Simple practical approach for sample loading prior to DNA extraction using a silica monolith in a microfluidic device.

A prototype microfluidic chip using fluorescent yeast for detection of toxic compounds (2008)
Journal Article
García-Alonso, J., Greenway, G. M., Hardege, J. D., & Haswell, S. J. (2009). A prototype microfluidic chip using fluorescent yeast for detection of toxic compounds. Biosensors & bioelectronics, 24(5), 1508-1511. https://doi.org/10.1016/j.bios.2008.07.074

A microfluidic chip has been developed to enable the screening of chemicals for environmental toxicity. The microfluidic approach offers several advantages over macro-scale systems for toxicity screening, including low cost and flexibility in design.... Read More about A prototype microfluidic chip using fluorescent yeast for detection of toxic compounds.

The on-line synthesis of enzyme functionalized silica nanoparticles in a microfluidic reactor using polyethylenimine polymer and R5 peptide (2008)
Journal Article
He, P., Greenway, G., & Haswell, S. J. (2008). The on-line synthesis of enzyme functionalized silica nanoparticles in a microfluidic reactor using polyethylenimine polymer and R5 peptide. Nanotechnology, 19(31), 315603. https://doi.org/10.1088/0957-4484/19/31/315603

A simple microfluidic reactor system is described for the effective synthesis of enzyme functionalized nanoparticles which offers many advantages over batch reactions, including excellent enzyme efficiencies. Better control of the process parameters... Read More about The on-line synthesis of enzyme functionalized silica nanoparticles in a microfluidic reactor using polyethylenimine polymer and R5 peptide.

The photocatalytic activity and kinetics of the degradation of an anionic azo-dye in a UV irradiated porous titania foam (2008)
Journal Article
Ibhadon, A. O., Greenway, G. M., Yue, Y., Falaras, P., & Tsoukleris, D. (2008). The photocatalytic activity and kinetics of the degradation of an anionic azo-dye in a UV irradiated porous titania foam. Applied catalysis. B, Environmental, 84(3-4), 351-355. https://doi.org/10.1016/j.apcatb.2008.04.019

A porous organic-inorganic hybrid titania foam, prepared from a long chain organic surfactant, hexadecylamine (HDA) and a semiconductor powder was characterized by microscopic and spectroscopic techniques and photocatalytically evaluated for the solu... Read More about The photocatalytic activity and kinetics of the degradation of an anionic azo-dye in a UV irradiated porous titania foam.

The photocatalytic activity of TiO2 foam and surface modified binary oxide titania nanoparticles (2008)
Journal Article
Ibhadon, A. O., Greenway, G. M., Yue, Y., Falaras, P., & Tsoukleris, D. (2008). The photocatalytic activity of TiO2 foam and surface modified binary oxide titania nanoparticles. Journal of Photochemistry and Photobiology A: Chemistry, 197(2-3), 321-328. https://doi.org/10.1016/j.jphotochem.2008.01.010

Surface modified titania dioxide composite nanoparticles prepared by hydrogen reduction reaction and a mesoporous TiO2 foam made from a surface modifier and a long chain organic surfactant were characterized by diffractive, spectroscopic and microsco... Read More about The photocatalytic activity of TiO2 foam and surface modified binary oxide titania nanoparticles.

Enzymatic synthesis of a series of alkyl esters using novozyme 435 in a packed-bed, miniaturized, continuous flow reactor (2008)
Journal Article
Woodcock, L. L., Wiles, C., Greenway, G. M., Watts, P., Wells, A., & Eyley, S. (2008). Enzymatic synthesis of a series of alkyl esters using novozyme 435 in a packed-bed, miniaturized, continuous flow reactor. Biocatalysis and biotransformation, 26(6), 466-472. https://doi.org/10.1080/10242420802456571

Using lipase catalysed, enzymatic esterification as a model reaction, we successfully demonstrate the use of miniaturized technology for biocatalytic reactions. Benchmarked against batch reactions, nine alkyl esters have been synthesized effectively,... Read More about Enzymatic synthesis of a series of alkyl esters using novozyme 435 in a packed-bed, miniaturized, continuous flow reactor.

An optical sensor for reactive oxygen species: encapsulation of functionalised silica nanoparticles into silicate nanoprobes to reduce fluorophore leaching (2007)
Journal Article
Hammond, V. J., Aylott, J. W., Greenway, G. M., Watts, P., Webster, A., & Wiles, C. (2008). An optical sensor for reactive oxygen species: encapsulation of functionalised silica nanoparticles into silicate nanoprobes to reduce fluorophore leaching. Analyst, 133(1), 71-75. https://doi.org/10.1039/b711995j

Sol-gel nanoprobes, also known as Photonic Explorer for Bioanalysis with Biologically Localised Embedding (PEBBLE), capable of performing in-vitro intracellular monitoring of reactive oxygen species have been developed using a modified form of 5(6)-c... Read More about An optical sensor for reactive oxygen species: encapsulation of functionalised silica nanoparticles into silicate nanoprobes to reduce fluorophore leaching.

Photocatalytic activity of surface modified TiO2/RuO2/SiO2 nanoparticles for azo-dye degradation (2007)
Journal Article
Ibhadon, A., Greenway, G., & Yue, Y. (2008). Photocatalytic activity of surface modified TiO2/RuO2/SiO2 nanoparticles for azo-dye degradation. Catalysis communications, 9(1), 153-157. https://doi.org/10.1016/j.catcom.2007.05.038

SiO2/RuO2 modified high surface area titania dioxide nanoparticles prepared by hydrogen reduction were examined for their catalytic properties towards the photodegradation of methyl orange (MO), a common water pollutant in the textile industry. The m... Read More about Photocatalytic activity of surface modified TiO2/RuO2/SiO2 nanoparticles for azo-dye degradation.