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Optimizing MOM diode performance via the oxidation technique (2011)
Presentation / Conference Contribution
Dodd, L., Gallant, A., & Wood, D. (2011). Optimizing MOM diode performance via the oxidation technique. . https://doi.org/10.1109/icsens.2011.6127347

This work presents a study of the effect of a simple oxidation technique on the electrical performance of Ti/TiOx/Pt MOM (metal-oxide-metal) diodes. A fabrication process has been designed to produce devices with a high yield. The I-V characteristics... Read More about Optimizing MOM diode performance via the oxidation technique.

A thermally actuated microgripper as an electrochemical sensor with the ability to manipulate single cells (2011)
Journal Article
Daunton, R., Gallant, A., Wood, D., & Kataky, R. (2011). A thermally actuated microgripper as an electrochemical sensor with the ability to manipulate single cells. Chemical Communications, 47(22), 6446-6448. https://doi.org/10.1039/c1cc11904d

The design and fabrication of a thermally actuated polymeric microgripper incorporating a bare gold working electrode is described. Initial electrochemical tests confirm that the microgripper sensor works as an effective microelectrode, opening up ex... Read More about A thermally actuated microgripper as an electrochemical sensor with the ability to manipulate single cells.

Microelectrode Array Supported by Microfluidic Channel for High-Throughput Sensing: Fabrication and Characterisation (2010)
Journal Article
Delcourt Lancon, A., Kataky, R., Wood, D., & Gallant, A. (2010). Microelectrode Array Supported by Microfluidic Channel for High-Throughput Sensing: Fabrication and Characterisation. ECS Transactions, 33(8), 221-227. https://doi.org/10.1149/1.3484125

The fabrication and characterisation of a microelectrode array supported by microfluidic channels for electroanalytical application are described in this paper. An array of 306 gold recessed microelectrodes (45 µm diameter) was fabricated using litho... Read More about Microelectrode Array Supported by Microfluidic Channel for High-Throughput Sensing: Fabrication and Characterisation.

Low voltage microgripper for single cell manipulation (2009)
Presentation / Conference Contribution
Solano, B., Gallant, A., Greggains, G., Wood, D., & Herbert, M. (2009). Low voltage microgripper for single cell manipulation. In P. Vincenzini, & D. DeRossi (Eds.), Biomedical applications of smart materials, nanotechnology and micro/nano engineering: "biomedical applications of smart materials, nanotechnology and micro/nano engineering": proceedings of symposium D "Biomedical applications of smart materials, nanotechnology and micro/nano engineering" of CIMTEC 2008 - 3rd International conference "Smart materials, structures and systems", held in Acireale, Sicilly, Italy, June 8-13 2008 (67-72). https://doi.org/10.4028/www.scientific.net/ast.57.67

In this work, we present the characterisation of an electrothermally actuated microgripper that operates in both dry and liquid media, and shows improved performance versus existing devices. The microgripper, fabricated in a combination of polymeric... Read More about Low voltage microgripper for single cell manipulation.

A robust, fine pitch probe card (2009)
Journal Article
Rosamond, M., Gallant, A., & Wood, D. (2009). A robust, fine pitch probe card. Procedia chemistry, 1(1), 792-795. https://doi.org/10.1016/j.proche.2009.07.197

A new type of probe card is described which consists of inclined nickel cantilevers formed on top of a three dimensional PDMS layer. A prototype card has been built with an in-line pitch of 23 μm. The presence of a PDMS layer beneath the cantilevers... Read More about A robust, fine pitch probe card.

Porous PDMS force sensitive resistors (2009)
Journal Article
King, M., Baragwanath, A., Rosamond, M., Wood, D., & Gallant, A. (2009). Porous PDMS force sensitive resistors. Procedia chemistry, 1(1), 568-571. https://doi.org/10.1016/j.proche.2009.07.142

Here we present an elastomeric force sensitive resistor (FSR) made from a porous matrix of polydimethylsiloxane (PDMS) filled with carbon black. The fabrication process is based on the use of a low cost sacrificial sugar cube scaffold which leads to... Read More about Porous PDMS force sensitive resistors.

Design and Optimisation of a Microgripper: Demonstration of Biomedical Applications Using the Manipulation of Oocytes (2009)
Presentation / Conference Contribution
Solano, B., Gallant, A., & Wood, D. (2009). Design and Optimisation of a Microgripper: Demonstration of Biomedical Applications Using the Manipulation of Oocytes. In T. Bourouina, B. Courtois, R. Ghodssi, A. Soma, H. Yang, & J. M. Karam (Eds.), Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP), Rome, Italy, 1-3 April 2009 (61-65)

We present a bidirectional electrothermal microgripper for the advanced manipulation of single large cells. The device demonstrates excellent performance, and shows great potential as a supporting microtool for different biomedical procedures such as... Read More about Design and Optimisation of a Microgripper: Demonstration of Biomedical Applications Using the Manipulation of Oocytes.

Micromachined Terahertz Waveguides with Embedded Metal Rods (2008)
Presentation / Conference Contribution
Gallant, A., Baragwanath, A., Swift, P., Wood, D., & Chamberlain, M. (2008). Micromachined Terahertz Waveguides with Embedded Metal Rods. In Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves, 15-19 September 2008, Pasadena, California (104-105). https://doi.org/10.1109/icimw.2008.4665466

In this paper we report on a novel fabrication approach for the manufacture of terahertz waveguides with embedded metal rods. It is anticipated that this type of structure could be used for sub-wavelength imaging or as a method to effectively couple... Read More about Micromachined Terahertz Waveguides with Embedded Metal Rods.

Negative refracting materials at THz frequencies. (2008)
Presentation / Conference Contribution
Swift, G. P., Gallant, A. J., Dai, D., Kaliteevski, M. A., Brand, S., Zeze, D. A., …Chamberlain, J. M. (2008). Negative refracting materials at THz frequencies. In Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves: 15-19 September 2008, Pasadena, California (496-497). https://doi.org/10.1109/icimw.2008.4665668

We demonstrate here, for the first time, the construction of artificial materials, which theoretically possess two separate pass-bands utilizing the difference between positive and negative refraction in the terahertz frequency regime. Experimental t... Read More about Negative refracting materials at THz frequencies..

Flexible polymer based artificial materials for terahertz applications. (2007)
Presentation / Conference Contribution
Gallant, A., Zeze, D., Wood, D., Petty, M., Dai, D., & Chamberlain, J. (2007). Flexible polymer based artificial materials for terahertz applications. In Desc: 2-9 September 2007, Cardiff, Wales, UK (961-963). https://doi.org/10.1109/icimw.2007.4516819

In this paper we report on the fabrication and testing of arrays of subwavelength apertures which are formed in a highly flexible polymer, PDMS (polydimethylsiloxane). PDMS can be elastically stretched to cause the deformation of any surface features... Read More about Flexible polymer based artificial materials for terahertz applications..

Passband filters for terahertz radiation based on dual metallic photonic structures (2007)
Journal Article
Gallant, A., Kaliteevski, M., Wood, D., Petty, M., Abram, R., Brand, S., …Chamberlain, J. (2007). Passband filters for terahertz radiation based on dual metallic photonic structures. Applied Physics Letters, 91(16), https://doi.org/10.1063/1.2800381

This paper reports on the development of two-dimensional metallic microstructures for the filtering of terahertz radiation. These structures are fabricated using ultraviolet-based processing of thick SU8 resist. This micromachining technique enables... Read More about Passband filters for terahertz radiation based on dual metallic photonic structures.

Terahertz Frequency Bandpass Filters (2007)
Journal Article
Gallant, A., Kaliteevski, M., Brand, S., Wood, D., Petty, M., Abram, R., & Chamberlain, J. (2007). Terahertz Frequency Bandpass Filters. Journal of Applied Physics, 102(2), https://doi.org/10.1063/1.2756072

The design, measurement, and analysis of a range of artificial materials for use at terahertz frequencies are described. The chosen structures consist of arrays of cylindrical gold-plated pillars with period comparable to the wavelength of incident r... Read More about Terahertz Frequency Bandpass Filters.

Artificial plasmonic materials for THz applications (2007)
Presentation / Conference Contribution
Gallant, A., Levitt, J., Kaliteevski, M., Wood, D., Petty, M., Abram, R., …Chamberlain, J. (2007). Artificial plasmonic materials for THz applications. In K. J. Linden, & L. P. Sadwick (Eds.), Terahertz and gigahertz electronics and photonics VI : 21-22 January 2007, San Jose, California, USA. https://doi.org/10.1117/12.712716

This paper reports on the development of micromachined pillar arrays for the filtering of terahertz radiation. These pillar arrays are fabricated using ultraviolet based processing of thick SU8. This micromachining technique enables the array pattern... Read More about Artificial plasmonic materials for THz applications.

Surface micromachined membranes for wafer level packaging (2005)
Journal Article
Gallant, A., & Wood, D. (2005). Surface micromachined membranes for wafer level packaging. Journal of Micromechanics and Microengineering, 15(7), S47-S52. https://doi.org/10.1088/0960-1317/15/7/007

Novel surface micromachined membranes have been developed for wafer level packaging and polymer encapsulation. Laterally unconstrained electroforming allows small etch holes to be included in thick membranes whilst only requiring a thin, low stress,... Read More about Surface micromachined membranes for wafer level packaging.

The role of fabrication techniques on the performance of widely tunable micromachined capacitors (2004)
Journal Article
Gallant, A., & Wood, D. (2004). The role of fabrication techniques on the performance of widely tunable micromachined capacitors. Sensors and Actuators A: Physical, 110(1-3), 423-431. https://doi.org/10.1016/j.sna.2003.07.006

Coventorware 2001.1® is used to identify key vertical dimensions for the low voltage operation of a two-gap widely tunable capacitor. Using identical masking stages, two varieties of tunable capacitor are presented. Nickel structures are demonstrated... Read More about The role of fabrication techniques on the performance of widely tunable micromachined capacitors.