Development of a gel-to-gel electro-kinetic pinched injection method for an integrated micro-fluidic based DNA analyser

Oakley, Jennifer A.; Robinson, Sarah; Dyer, Charlotte E.; Greenman, John; Greenway, Gillian M.; Haswell, Stephen J.

doi:10.1016/j.aca.2009.07.063

A direct technique for preparation of magnetically functionalised living yeast cells (2009)
Journal Article
Fakhrullin, R. F., García-Alonso, J., & Paunov, V. N. (2010). A direct technique for preparation of magnetically functionalised living yeast cells. Soft matter, 6(2), 391-397. https://doi.org/10.1039/b914065d

A direct technique for preparation of magnetically functionalised yeast cells by using polyelectrolyte mediated deposition of magnetite nanoparticles is reported. We demonstrate that the cells preserve their viability after the magnetite deposition a... Read More about A direct technique for preparation of magnetically functionalised living yeast cells.

A mechanistic study of the low pressure pyrolysis of linear siloxanes (2009)
Journal Article
Almond, M. J., Becerra, R., Bowes, S. J., Cannady, J. P., Ogden, J. S., Young, N. A., & Walsh, R. (2009). A mechanistic study of the low pressure pyrolysis of linear siloxanes. Physical chemistry chemical physics : PCCP, 11(40), 9259-9267. https://doi.org/10.1039/b910549b

Matrix isolation IR spectroscopy has been used to study the vacuum pyrolysis of 1,1,3,3-tetramethyldisiloxane (L1), 1,1,3,3,5,5-hexamethyltrisiloxane (L2) and 3H,5H-octamethyltetrasiloxane (L3) at ca. 1000 K in a flow reactor at low pressures. The hy... Read More about A mechanistic study of the low pressure pyrolysis of linear siloxanes.

Synthesis, structure and ethylene polymerisation behaviour of vanadium(iv and v) complexes bearing chelating aryloxides (2009)
Journal Article
Homden, D., Redshaw, C., Warford, L., Hughes, D. L., Wright, J. A., Dale, S. H., & Elsegood, M. R. (2009). Synthesis, structure and ethylene polymerisation behaviour of vanadium(iv and v) complexes bearing chelating aryloxides. Dalton Transactions : an international journal of inorganic chemistry, 8900-8910. https://doi.org/10.1039/b901810g

The reaction of [V(Np-tolyl)Cl3] with the sulfur-bridged diphenol ligand 2,2′-thiobis(4,6-di-tert-butylphenol), {2,2′-S[4,6-(t-Bu)2C6H2OH]2} (LSH2) afforded the complexes [V(LS)2] (1) and [VOCl 3(MeCN)2][H3Np-tolyl] (2). Complex 2 could also be prepa... Read More about Synthesis, structure and ethylene polymerisation behaviour of vanadium(iv and v) complexes bearing chelating aryloxides.

Inversion of 'dry water' to aqueous foam on addition of surfactant (2009)
Journal Article
Johnson, A. J., Rodrigues, J. A., & Binks, B. P. (2010). Inversion of 'dry water' to aqueous foam on addition of surfactant. Soft matter, 6(1), 126-135. https://doi.org/10.1039/b914706c

Addition of charged surfactant to mixtures of air, water and hydrophobic silica nanoparticles under high shear induces transitional phase inversion from a water-in-air powder to an air-in-water foam. Optical and electron microscopy reveal the non-sph... Read More about Inversion of 'dry water' to aqueous foam on addition of surfactant.

Formation of apatite oxynitrides by the reaction between apatite-type oxide ion conductors, La8+xSr2-x(Si/Ge)6O26+x/2, and ammonia (2009)
Journal Article
Orera, A., Headspith, D., Apperley, D. C., Francesconi, M. G., & Slater, P. R. (2009). Formation of apatite oxynitrides by the reaction between apatite-type oxide ion conductors, La8+xSr2-x(Si/Ge)6O26+x/2, and ammonia. Journal of Solid State Chemistry, 182(12), 3294-3298. https://doi.org/10.1016/j.jssc.2009.09.029

Following growing interest in the use of ammonia as a fuel in solid oxide fuel cells (SOFCs), we have investigated the possible reaction between the apatite silicate/germanate electrolytes, La8+xSr2−x(Si/Ge)6O26+x/2, and NH3 gas. We examine how the c... Read More about Formation of apatite oxynitrides by the reaction between apatite-type oxide ion conductors, La8+xSr2-x(Si/Ge)6O26+x/2, and ammonia.

MRI contrast agent delivery using spore capsules: controlled release in blood plasma (2009)
Journal Article
Lorch, M., Thomasson, M. J., Diego-Taboada, A., Barrier, S., Atkin, S. L., Mackenzie, G., & Archibald, S. J. (2009). MRI contrast agent delivery using spore capsules: controlled release in blood plasma. Chemical communications : Chem comm / the Royal Society of Chemistry, 6442-6444. https://doi.org/10.1039/b909551a

The exine coatings of spores can be used to encapsulate drug molecules. We have demonstrated that these microcapsules can be filled with a commercial gadolinium(III) MRI contrast agent (in this proof of concept study Gd-DTPA-BMA was used) which is sl... Read More about MRI contrast agent delivery using spore capsules: controlled release in blood plasma.

Synthesis and phototoxicity of polyethylene glycol (PEG) substituted metal-free and metallo-porphyrins: Effect of PEG chain length, coordinated metal, and axial ligand (2009)
Journal Article
Mewis, R. E., Savoie, H., Archibald, S. J., & Boyle, R. W. (2009). Synthesis and phototoxicity of polyethylene glycol (PEG) substituted metal-free and metallo-porphyrins: Effect of PEG chain length, coordinated metal, and axial ligand. Photodiagnosis and Photodynamic Therapy, 6(3-4), 200-206. https://doi.org/10.1016/j.pdpdt.2009.08.002

Treatment of 5,10,15,20-tetra(pentafluorophenyl) porphyrins with polyethylene glycol (PEG) halides and sodium sulfide is a mild and efficient route to water-soluble PEG substituted porphyrins. The method has been used to access a series of free-base... Read More about Synthesis and phototoxicity of polyethylene glycol (PEG) substituted metal-free and metallo-porphyrins: Effect of PEG chain length, coordinated metal, and axial ligand.

Strained arrays of colloidal nanoparticles: Conductance and magnetoresistance enhancement (2009)
Journal Article
Rybchenko, S. I., Dyab, A. K. F., Haywood, S. K., Itskevich, I. E., & Paunov, V. N. (2009). Strained arrays of colloidal nanoparticles: Conductance and magnetoresistance enhancement. Nanotechnology, 20(42), Article ARTN 425607. https://doi.org/10.1088/0957-4484/20/42/425607

Colloidal nanoparticles are very popular as building blocks of functional arrays for electronic and optical applications. However, there is a problem in achieving electrical conductivity in such nanoarrays due to their molecular shells. These shells,... Read More about Strained arrays of colloidal nanoparticles: Conductance and magnetoresistance enhancement.

UV polymerisation of surfactants adsorbed at the nematic liquid crystal-water interface produces an optical response (2009)
Journal Article
Fletcher, P. D. I., Kang, N.-G., & Paunov, V. N. (2009). UV polymerisation of surfactants adsorbed at the nematic liquid crystal-water interface produces an optical response. Chemphyschem, 10(17), 3046-3053. https://doi.org/10.1002/cphc.200900405

We have investigated the changes in crossed polariser optical textures produced by adsorption and UV polymerisation of a range of polymerisable surfactants at the interface between a nematic liquid crystal and water. Similar to non-polymerisable surf... Read More about UV polymerisation of surfactants adsorbed at the nematic liquid crystal-water interface produces an optical response.

Investigating the nature of the active species in bis(imino)pyridine cobalt ethylene polymerization catalysts (2009)
Journal Article
Soshnikov, I. E., Semikolenova, N. V., Bushmelev, A. N., Bryliakov, K. P., Lyakin, O. Y., Redshaw, C., Zakharov, V. A., & Talsi, E. P. (2009). Investigating the nature of the active species in bis(imino)pyridine cobalt ethylene polymerization catalysts. Organometallics, 28(20), 6003-6013. https://doi.org/10.1021/om900490b

The activation of bis(imino)pyridine cobalt-based catalysts of ethylene polymerization with methylalumoxane (MAO), AlMe3, and AlMe 3/[CPh3][B(C6F5)4] has been studied by 1H, 2H, and 19F NMR and EPR spectroscopy. The nature of the active sites of poly... Read More about Investigating the nature of the active species in bis(imino)pyridine cobalt ethylene polymerization catalysts.

Influence of acetylene-containing peripheral chains on the mesomorphic properties of triphenylene-based liquid crystals (2009)
Journal Article
Stackhouse, P. J., & Hird, M. (2009). Influence of acetylene-containing peripheral chains on the mesomorphic properties of triphenylene-based liquid crystals. Liquid crystals, 36(9), 953-965. https://doi.org/10.1080/02678290903165490

Three series of novel acetylene-containing triphenylene-based liquid crystals have been prepared. One class of material is symmetrical with the acetylenic unit located at the terminus of a peripheral alkynyloxy chain in a peripheral position at the t... Read More about Influence of acetylene-containing peripheral chains on the mesomorphic properties of triphenylene-based liquid crystals.

An ellipsometry study of silica nanoparticle layers at the water surface (2009)
Journal Article
Zang, D., Stocco, A., Langevin, D., Wei, B., & Binks, B. P. (2009). An ellipsometry study of silica nanoparticle layers at the water surface. Physical chemistry chemical physics : PCCP, 11(41), 9522-9529. https://doi.org/10.1039/b907903c

We have studied silica nanoparticle layers spread at the air/water interface. The surface pressure of the layers has been determined in a Langmuir trough via two orthogonal Wilhelmy plates. We observed significant differences in surface pressure acco... Read More about An ellipsometry study of silica nanoparticle layers at the water surface.

Synthesis and characterisation of the quaternary nitride-fluoride Ce2MnN3F2-δ (2009)
Journal Article
Headspith, D. A., Sullivan, E., Greaves, C., & Francesconi, M. G. (2009). Synthesis and characterisation of the quaternary nitride-fluoride Ce2MnN3F2-δ. Dalton Transactions : an international journal of inorganic chemistry, 9273-9279. https://doi.org/10.1039/b908591b

Ce 2 MnN 3 F 2-δ has been synthesised via low-temperature fluorination of the ternary nitride Ce 2 MnN 3 . To the best of our knowledge, Ce 2 MnN 3 F 2-δ is the first quaternary nitride-fluoride to be reported. The reaction of Ce 2 MnN 3 with 10% F 2... Read More about Synthesis and characterisation of the quaternary nitride-fluoride Ce2MnN3F2-δ.

Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow (2009)
Journal Article
Peyman, S. A., Iles, A., & Pamme, N. (2009). Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow. Lab on a chip, 9(21), 3110-3117. https://doi.org/10.1039/b904724g

An extremely versatile microfluidic device is demonstrated in which multi-step (bio) chemical procedures can be performed in continuous flow. The system operates by generating several co-laminar flow streams, which contain reagents for specific (bio)... Read More about Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow.

Novel multifunctional micro-ampoules for structuring and encapsulation (2009)
Journal Article
Campbell, A. L., Stoyanov, S. D., & Paunov, V. N. (2009). Novel multifunctional micro-ampoules for structuring and encapsulation. Chemphyschem, 10(15), 2599-2602. https://doi.org/10.1002/cphc.200900317

Micro-ampoules: A novel method for the scalable fabrication of micro-rodcapsules made from edible materials is described. The capsules closely resemble ampoules by having multiple compartments loaded with oils (see picture). Such novel micro-ampoules... Read More about Novel multifunctional micro-ampoules for structuring and encapsulation.

Two related lithium calixarene complexes, [p-tert-butyl-calix[4]arene(OMe) (OH)2(OLi)]2·4MeCN and {p-tert-butyl-calix[4] arene(OH)2(OLi)[OLi(NCMe)2]}2·8MeCN, determined using synchrotron radiation (2009)
Journal Article
Lee, D. S., Elsegood, M. R., Redshaw, C., & Zhan, S. (2009). Two related lithium calixarene complexes, [p-tert-butyl-calix[4]arene(OMe) (OH)2(OLi)]2·4MeCN and {p-tert-butyl-calix[4] arene(OH)2(OLi)[OLi(NCMe)2]}2·8MeCN, determined using synchrotron radiation. Acta Crystallographica Section C: Crystal Structure Communications, 65(8), m291-m295. https://doi.org/10.1107/S0108270109025311

The crystal structures of acetonitrile solvates of two related lithium calixarene complexes have been determined by low-temperature single-crystal X-ray diffraction using synchrotron radiation. Bis(μ-5,11,17,23-tetra-tert- butyl-26,28-dihydr-oxy-25-m... Read More about Two related lithium calixarene complexes, [p-tert-butyl-calix[4]arene(OMe) (OH)2(OLi)]2·4MeCN and {p-tert-butyl-calix[4] arene(OH)2(OLi)[OLi(NCMe)2]}2·8MeCN, determined using synchrotron radiation.

Molecular complexity and the control of self-organising processes (2009)
Journal Article
Goodby, J. W., Saez, I. M., Cowling, S. J., Gasowska, J. S., MacDonald, R. A., Sia, S., Watson, P., Toyne, K. J., Hird, M., Lewis, R. A., Lee, S.-E., & Vaschenko, V. (2009). Molecular complexity and the control of self-organising processes. Liquid crystals, 36(6-7), 567-605. https://doi.org/10.1080/02678290903146060

In this article we investigate the complexity of the molecular architectures of liquid crystals based on rod-like mesogens. Starting from simple monomeric systems founded on fluoroterphenyls, we first examine the effects of aromatic core structure on... Read More about Molecular complexity and the control of self-organising processes.

Melaminium 2,4,6-trihydroxybenzoate dihydrate (2009)
Journal Article
Prior, T. J., Goch, O., & Kift, R. L. (2009). Melaminium 2,4,6-trihydroxybenzoate dihydrate. Acta Crystallographica Section E: Crystallographic Communications, 65(9), O2133-U1847. https://doi.org/10.1107/S1600536809031055

In the title compound, C 3 H 7 N 6 + ·C 7 H 5 O 5 - ·2H 2 O, the melaminium and benzoate ions are approximately planar (r.m.s. deviation of the non-hydrogen atoms is 0.093 Å) and there is a strong C 2 2 (8) hydrogen-bonding embrace between them. The... Read More about Melaminium 2,4,6-trihydroxybenzoate dihydrate.

Influence of surfactant structure on the double inversion of emulsions in the presence of nanoparticles (2009)
Journal Article
Rodrigues, J. A., & Binks, B. P. (2009). Influence of surfactant structure on the double inversion of emulsions in the presence of nanoparticles. Colloids and surfaces. A, Physicochemical and engineering aspects, 345(1-3), 195-201. https://doi.org/10.1016/j.colsurfa.2009.05.001

The double inversion of emulsions from oil-in-water (o/w) to water-in-oil (w/o) and back to o/w is a novel approach developed using oppositely charged mixtures of solid particles and surfactant molecules [B.P. Binks, J.A. Rodrigues, Angew. Chem. Int.... Read More about Influence of surfactant structure on the double inversion of emulsions in the presence of nanoparticles.

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.

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