Browsing by Author "Higson, Seamus P. J."

Langmuir and LB properties of two calix[4]resorcinarenes: Interactions with various analytes

Sugden, Mark W.; Richardson, Tim H.; Davis, Frank; Higson, Seamus P. J.; Faul, Charl F. J. (Elsevier Science B.V., Amsterdam., 2008-05-15)

The ability of calixarene-based molecules to interact with amino acids has been the basis of many studies. The Langmuir and LB properties of two calix [4]resorcinarenes have been investigated. The properties of the layer ...

Long period grating based toluene sensor for use with water contamination

Partridge, Matthew; Wong, Rebecca; James, Stephen W.; Davis, Frank; Higson, Seamus P. J.; Tatam, Ralph P. (Elsevier Science B.V., Amsterdam., 2014-11-01)

A demonstration of the use of a calix[4]resorcinarene coated optical fibre long period grating sensor for the detection of toluene in water is presented. Monitoring water quality both for domestic use and around industrial ...

Microarray sensors for detecting airborne explosives

Caygill, J. S. (Cranfield University, 2011-10)

Due to the enhanced level of national security currently required due to the possibility of terrorist attack, monitoring devices for trace levels of explosive materials are now of the upmost importance. One such method ...

Modifying monolayer behaviour by incorporating subphase additives and improving Langmuir–Blodgett thin film deposition on optical fibres

Partridge, Matthew; Wong, Rebecca; Collins, Mike; James, Stephen W.; Davis, Frank; Tatam, Ralph P.; Higson, Seamus P. J. (Elsevier, 2014-01-17)

Experiments showing the possibility of modifying the behaviour of calix[4]resorcinarene monolayers at the air–water interface and optimising the deposition of multilayer coatings onto optical fibres are presented. The ...

A new application of scanning electrochemical microscopy for the label-free interrogation of antibody-antigen interactions.

Holmes, Joanne L.; Davis, Frank; Collyer, Stuart D.; Higson, Seamus P. J. (Elsevier Science B.V., Amsterdam., 2011-03-18)

Within this work we present a 'proof of principle' study for the use of scanning electrochemical microscopy (SECM) to detect and image biomolecular interactions in a label-free assay as a potential alternative to current ...

New Techniques in Monitoring Water Pollution - Development of Sonochemically Fabricated Microarrays for the Determination of Pollutants.

Davis, Frank; Collyer, Stuart D.; Gornall, Davinia D.; Law, Karen A.; Mills, Daniel W.; Higson, Seamus P. J. (Teknoscienze Srl, 2007-01-01)

The focus of this article is to describe a simple-to-use, disposable sensor suitable for the rapid determination of pollutants in aqueous media, utilising a novel sonochemical microelectrode fabrication technique. The ...

Optical and AFM study of electrostatically assembled films of CdS and ZnS colloid nanoparticles.

Suryajaya, S.; Nabok, Alexei; Davis, Frank; Hassan, A.; Higson, Seamus P. J.; Evans-Freeman, J. (Elsevier Science B.V., Amsterdam., 2008-05-30)

CdS and ZnS semiconducting colloid nanoparticles coated with the organic shell, containing either SO3− or NH2+ groups, were prepared using the aqueous phase synthesis. The multilayer films of CdS (or ZnS) were deposited ...

Optical fibre long period grating based selective vapour sensing of volatile organic compounds

Topliss, Stephen M.; James, Stephen W.; Davis, Frank; Higson, Seamus P. J.; Tatam, Ralph P. (Elsevier Science B.V., Amsterdam., 2010-01-07)

The chemical sensing capabilities of an optical fibre long period grating (LPG) coated with a functional material are explored. The LPG period and coating thickness are chosen such that the mode transition region, ...

Photochemical polymerization of thiophene derivatives in aqueous solution

Piletsky, Sergey A.; Piletska, Elena V.; Karim, K.; Davis, Frank; Higson, Seamus P. J.; Turner, Anthony P. F. (Royal Society of Chemistry, 2004-08-20)

A novel method of photochemical polymerization of thiophene derivatives in aqueous solution catalyzed by potassium dichromate and initiated by illumination is described.

Polymers in biosensors.

Davis, Frank; Higson, Seamus P. J. (2007-08-06)

This chapter will be devoted to the incorporation of polymers within biosensors, beginning with a history and descriptions of basic sensor formats - while concentrating on optical and electrochemical sensors. Initially ...

Procedure 24 : Construction of an enzyme-containing microelectrode array and use for detection of low levels of pesticides

Davis, Frank; Law, Karen A.; Turner, Anthony P. F.; Higson, Seamus P. J. (2007-01-01)

Objectives (a) To construct a microelectrode array based on a screen printed substrate. (b) To utilise the microelectrode array to form an array of enzyme- containing electrodes (c) To test the electrode response to ...

Scanning electrochemical microscopy for the interrogation of biologically modified surfaces

Roberts, William St John (Cranfield University, 2007-01)

This thesis describes two novel applications of scanning electrochemical microscopy (SECM) to biological systems. The first involves the characterisation of a novel, impedance based genomic DNA biosensor - previously ...

Scanning electrochemical microscopy for the characterisation of surfaces modified with biological molecules

Holmes, Joanne L. (Cranfield University, 2011-02)

This thesis describes a novel fabrication procedure for microelectrodes to be used with the scanning electrochemical microscope (SECM), the characterisation of a variety of novel impedance based immunosensors, and the ...

Sol-gel based sensor for selective formaldehyde determination

Bunkoed, Opas; Davis, Frank; Kanatharana, Proespichaya; Thavarungkul, Panote; Higson, Seamus P. J. (Elsevier Science B.V., Amsterdam., 2010-02-01)

We report the development of transparent sol–gels with entrapped sensitive and selective reagents for the detection of formaldehyde. The sampling method is based on the adsorption of formaldehyde from the air and reaction ...

Sonochemically fabricated microelectrode arrays for biosensors offering widespread applicability. Part I

Barton, Andrew C.; Collyer, Stuart D.; Davis, Frank; Gornall, Davinia D.; Law, Karen A.; Lawrence, Emma C. D.; Mills, Daniel W.; Myler, Suzy; Pritchard, Jeanette A.; Thompson, Mark; Higson, Seamus P. J. (Elsevier Science B.V., Amsterdam., 2004-09-15)

A novel and patented procedure is described for the sonochemical fabrication of a new class of microelectrode array based sensor with electrode element populations of up to 2 x 105 cm-2. For some years it has been accepted ...

Sonochemically fabricated microelectrode arrays for biosensors. Part II. Modification with a polysiloxane coating

Myler, Suzy; Davis, Frank; Collyer, Stuart D.; Higson, Seamus P. J. (Elsevier Science B.V., Amsterdam., 2004-09-15)

A polymer modified sonochemically fabricated glucose oxidase microelectrode array with microelectrode population densities of up to 2.5 x 105 microelectrodes cm-2 is reported. These microelectrode sensors were formed ...

Sonochemically induced reactions of oils

Mercantili, Laura (Cranfield University, 2012-10)

This work will describe the use of the ultrasonic power for the modification of a wide range of oils from vegetable, through to mineral and synthetic oils. It will be shown that ultrasound is effective in cleaving the ...

Species differentiation by DNA-modified carbon electrodes using an ac impedimetric approach.

Davis, Frank; Nabok, Alexei; Higson, Seamus P. J. (Elsevier Science B.V., Amsterdam., 2005-02-15)

A simple and novel electrochemical biosensor based approach is described for differentiating between differing species of fish on the basis of DNA hybridisation events. Screen-printed carbon electrodes modified with a ...

Studies towards the development of label-free AC impedimetric immunosensors for healthcare and food quality control

Tsekenis, Georgios (Cranfield University, 2008-03)

This thesis describes work focused towards the fabrication and characterisation of immunosensor platforms for the label-free detection of analytes of importance in the health and food industries. Due to their low unit ...

Studies towards the exploitation of sonochemically formed microelectrode arrays for the development of electrochemical sensors.

Gornall, Davinia D. (Cranfield University, 2004-12)

Microelectrodes offer a number of advantages for exploitation as electrochemical sensors such as imparting stir-independence to sensor responses and allowing lower limits of detection to be minimised. Microelectrode ...

Browsing by Author "Higson, Seamus P. J."

Browsing by Author "Higson, Seamus P. J."

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