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All Outputs (96)

Opportunities for sensors in printed electronics (2011)
Presentation / Conference
Killard, A. (2011, September). Opportunities for sensors in printed electronics. Presented at Organic Electronics association 24th Working Group Meeting, Dublin City University, Dublin, Ireland

Opportunities for sensors in printed electronics (2011)
Presentation / Conference
Killard, A. (2011, September). Opportunities for sensors in printed electronics. Presented at PFM2 Printed Functional Materials 2011, Dublin City University, Dublin, Ireland

Electrochemical sensor strips were one of the first devices to become a global success in what might now be termed the printed electronics industry. Since their creation some 20 years ago, printed sensor strips are used extensively for a range of cli... Read More about Opportunities for sensors in printed electronics.

Enhanced electrochemical reduction of hydrogen peroxide at surfactant/salt modified electrodes (2011)
Presentation / Conference
Gonzalez-Macia, L., & Killard, A. (2011, September). Enhanced electrochemical reduction of hydrogen peroxide at surfactant/salt modified electrodes. Poster presented at Electrochem 2011, Bath, United Kingdom

Hydrogen peroxide (H2O2) is widely used in many biological systems and industrial processes in the textile, food, pharmaceutical and clinical sectors. The importance of hydrogen peroxide is related to its unique oxidising properties as well as decomp... Read More about Enhanced electrochemical reduction of hydrogen peroxide at surfactant/salt modified electrodes.

Breath ammonia levels in a normal human population study as determined by photoacoustic laser spectroscopy (2011)
Journal Article
Hibbard, T., & Killard, A. (2011). Breath ammonia levels in a normal human population study as determined by photoacoustic laser spectroscopy. Journal of Breath Research, 5(3), https://doi.org/10.1088/1752-7155/5/3/037101

Photoacoustic laser spectroscopy was used as a technique to measure real-time levels of ammonia in exhaled human breath in a small, locally recruited, normal healthy population (n = 30). This yielded an average level of breath ammonia of 265 ppb, ran... Read More about Breath ammonia levels in a normal human population study as determined by photoacoustic laser spectroscopy.

Chronocoulometric determination of urea in human serum using an inkjet printed biosensor (2011)
Journal Article
Smyth, M. R., Suman, S., O'Reilly, E., Kelly, M., Morrin, A., & Killard, A. (2011). Chronocoulometric determination of urea in human serum using an inkjet printed biosensor. Analytica Chimica Acta, 697(1-2), 98-102. https://doi.org/10.1016/j.aca.2011.04.036

A biosensor for the determination of urea in human serum was fabricated using a combination of inkjet printed polyaniline nanoparticles and inkjet printed urease enzyme deposited sequentially onto screen-printed carbon paste electrodes. Chronocoulome... Read More about Chronocoulometric determination of urea in human serum using an inkjet printed biosensor.

Evaluation of activated partial thromboplastin time (aPTT) reagents for application in biomedical diagnostic device development (2011)
Journal Article
Dudek, M., Harris, L., & Killard, A. (2011). Evaluation of activated partial thromboplastin time (aPTT) reagents for application in biomedical diagnostic device development. International Journal of Laboratory Hematology, 33(3), 272-280. https://doi.org/10.1111/j.1751-553X.2010.01283.x

Introduction: The most commonly used test for monitoring heparin therapy is the activated partial thromboplastin time (aPTT). The response of available aPTT reagents to heparin varies significantly. The aim of this study was to highlight the differen... Read More about Evaluation of activated partial thromboplastin time (aPTT) reagents for application in biomedical diagnostic device development.

Electrochemical sensors: From probes to integrated smart systems (2011)
Presentation / Conference
Killard, A. (2011, May). Electrochemical sensors: From probes to integrated smart systems. Presented at Eirelec '11: Electrochemistry - The Future?, Adare, Co. Limerick, Ireland

The emergence of the field of electroanalytical chemistry has transformed measurement science. Early application of electrochemical probes for simple ionic species has given way to more sophisticated measurements involving further chemo-selective and... Read More about Electrochemical sensors: From probes to integrated smart systems.

Development of a fluorescent method for detecting the onset of coagulation in human plasma on microstructured lateral flow platforms (2011)
Journal Article
Kent, N. J., Dudek, M. M., Gu, P., Fan, Z. H., & Killard, A. (2011). Development of a fluorescent method for detecting the onset of coagulation in human plasma on microstructured lateral flow platforms. Analyst, 136(9), 1816-1825. https://doi.org/10.1039/c0an00907e

Microfluidic devices and microsystems have been used to develop blood coagulation monitoring devices for point of care diagnostic use. However, many of them suffer from inherent variability and imprecision, partly due to the fact that they only detec... Read More about Development of a fluorescent method for detecting the onset of coagulation in human plasma on microstructured lateral flow platforms.

Inkjet printable polyaniline-gold dispersions (2011)
Journal Article
Smyth, M. R., Lenhart, N., Crowley, K., Killard, A., & Morrin, A. (2011). Inkjet printable polyaniline-gold dispersions. Thin Solid Films, 519(13), 4351-4356. https://doi.org/10.1016/j.tsf.2011.02.045

Inkjet printable polyaniline-gold (PANI-Au) hybrid dispersions were synthesised using gold salt as oxidant to simultaneously induce chemical oxidative polymerisation of aniline and reduction of HAuCl4 in bulk aqueous solution. By varying the amount o... Read More about Inkjet printable polyaniline-gold dispersions.

Enhanced electrochemical reduction of hydrogen peroxide on silver paste electrodes modified with surfactant and salt (2011)
Journal Article
Smyth, M. R., Gonzalez-Macia, L., Morrin, A., & Killard, A. (2011). Enhanced electrochemical reduction of hydrogen peroxide on silver paste electrodes modified with surfactant and salt. Electrochimica Acta, 56(11), 4146-4153. https://doi.org/10.1016/j.electacta.2011.01.108

The modification of silver paste electrodes with a combination of dodecylbenzenesulfonic acid and KCl has been shown to lead to significant enhancements of the electrochemical reduction of hydrogen peroxide. The catalytic enhancement was shown to be... Read More about Enhanced electrochemical reduction of hydrogen peroxide on silver paste electrodes modified with surfactant and salt.

Breath ammonia analysis: Clinical application and measurement (2011)
Journal Article
Hibbard, T., & Killard, A. (2011). Breath ammonia analysis: Clinical application and measurement. Critical Reviews in Analytical Chemistry, 41(1), 21-35. https://doi.org/10.1080/10408347.2011.521729

This review covers in detail the complexity of human breath, how the body metabolizes ammonia, clinical conditions which are directly related to the regulation of ammonia concentration, and analysis of current techniques that are capable of detecting... Read More about Breath ammonia analysis: Clinical application and measurement.

Fluorescence-based blood coagulation assay device for measuring activated partial thromboplastin time (2011)
Journal Article
Lindahl, T. L., Gustafsson, K. M., Dudek, M. M., Kent, N., Tomas, L., & Killard, A. (2011). Fluorescence-based blood coagulation assay device for measuring activated partial thromboplastin time. Analytical Chemistry, 83(1), 319-328. https://doi.org/10.1021/ac102436v

The measurement of blood clotting time is important in a range of clinical applications such as assessing coagulation disorders and controlling the effect of various anticoagulant drug therapies. Clotting time tests essentially measure the onset of c... Read More about Fluorescence-based blood coagulation assay device for measuring activated partial thromboplastin time.

Fluorescence-based blood coagulation device for measuring activated partial thromboplastin time (2011)
Journal Article
Dudek, M., Kent, N., Gustafsson, K., Lindahl, T., & Killard, A. (2011). Fluorescence-based blood coagulation device for measuring activated partial thromboplastin time. Analytical Chemistry, 83(1), 319-328. https://doi.org/10.1021/ac102436v

The measurement of blood clotting time is important in a range of clinical applications such as assessing coagulation disorders and controlling the effect of various anticoagulant drug therapies. Clotting time tests essentially measure the onset of c... Read More about Fluorescence-based blood coagulation device for measuring activated partial thromboplastin time.

Development of a point of care lateral flow device for measuring human plasma fibrinogen (2010)
Journal Article
Dudek, M. M., Lindahl, T. L., & Killard, A. (2010). Development of a point of care lateral flow device for measuring human plasma fibrinogen. Analytical Chemistry, 82(5), 2029-2035. https://doi.org/10.1021/ac902763a

Fibrinogen is a major cardiovascular disease risk factor and is an independent predictor of coronary heart disease and stroke. Normal reference levels are approximately 2 to 4 g/L. Elevated levels are associated with the occurrence of cardiovascular... Read More about Development of a point of care lateral flow device for measuring human plasma fibrinogen.

The application of conducting polymer nanoparticle electrodes to the sensing of ascorbic acid (2008)
Journal Article
Ambrosi, A., Morrin, A., Smythe, M. R., & Killard, A. (2008). The application of conducting polymer nanoparticle electrodes to the sensing of ascorbic acid. Analytica Chimica Acta, 609(1), 37-43. https://doi.org/10.1016/j.aca.2007.12.017

An ascorbic acid sensor was fabricated via the drop-casting of dodecylbenzene sulphonic acid (DBSA)-doped polyaniline nanoparticles onto a screen-printed carbon-paste electrode. The modified electrode was characterised with respect to the numbers of... Read More about The application of conducting polymer nanoparticle electrodes to the sensing of ascorbic acid.