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Qassem, M. ORCID: 0000-0003-0730-3189, Constantinou, L., Triantis, I. ORCID: 0000-0002-8900-781X , Hickey, M., Palazidou, E. & Kyriacou, P. A. ORCID: 0000-0002-2868-485Xview all authors (2019). A Method for Rapid, Reliable, and Low-Volume Measurement of Lithium in Blood for Use in Bipolar Disorder Treatment Management. IEEE Transactions on Biomedical Engineering, 66(1), pp. 130-137. doi: 10.1109/tbme.2018.2836148

Qassem, M., Triantis, I. ORCID: 0000-0002-8900-781X, Hickey, M. , Palazidou, E. & Kyriacou, P. A. ORCID: 0000-0002-2868-485Xview all authors (2018). Methodology for rapid assessment of blood lithium levels in ultramicro volumes of blood plasma for applications in personal monitoring of patients with bipolar mood disorder. Journal of Biomedical Optics (JBO), 23(10), article number 107004. doi: 10.1117/1.jbo.23.10.107004

Davenport, J. J., Hickey, M., Phillips, J. P. & Kyriacou, P. A.view all authors (2017). Dual pO₂/pCO₂ fibre optic sensing film. The Analyst, 142(10), pp. 1711-1719. doi: 10.1039/c7an00173h

Constantinou, L., Triantis, I., Hickey, M. & Kyriacou, P. A.view all authors (2017). On the merits of tetrapolar impedance spectroscopy for monitoring lithium concentration variations in human blood plasma. IEEE Transactions on Biomedical Engineering, 64(3), pp. 601-609. doi: 10.1109/tbme.2016.2570125

Qassem, M., Hickey, M. & Kyriacou, P. A. (2016). Colorimetric determinations of lithium levels in drop-volumes of human plasma for monitoring patients with bipolar mood disorder. Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, 2016, doi: 10.1109/EMBC.2016.7591889

Hickey, M., Phillips, J. P. & Kyriacou, P. A. (2016). Investigation of peripheral photoplethysmographic morphology changes induced during a hand-elevation study. Journal of Clinical Monitoring and Computing, 30(5), pp. 727-736. doi: 10.1007/s10877-015-9761-0

Davenport, J. J., Hickey, M., Phillips, J. P. & Kyriacou, P. A.view all authors (2016). Fiber-optic fluorescence-quenching oxygen partial pressure sensor using platinum octaethylporphyrin. Applied Optics, 55(21), pp. 5603-5609. doi: 10.1364/ao.55.005603

Davenport, J. J., Hickey, M., Phillips, J. P. & Kyriacou, P. A.view all authors (2016). Method for producing angled optical fiber tips in the laboratory. Optical Engineering, 55(2), article number 026120. doi: 10.1117/1.oe.55.2.026120

Davenport, J. J., Hickey, M., Phillips, J. P. & Kyriacou, P. A.view all authors (2015). A fiberoptic sensor for tissue carbon dioxide monitoring. 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2015, pp. 7942-7945. doi: 10.1109/EMBC.2015.7320234

Hickey, M., Phillips, J.P. & Kyriacou, P. A. (2015). The effect of vascular changes on the photoplethysmographic signal at different hand elevations. Physiological Measurement, 36(3), pp. 425-440. doi: 10.1088/0967-3334/36/3/425

Hickey, M., Phillips, J. P. & Kyriacou, P. A. (2015). Venous pooling and drainage affects photoplethysmographic signals at different vertical hand positions. Optical Diagnostics and Sensing XV: Toward Point-of-Care Diagnostics, 9332, article number 93320I. doi: 10.1117/12.2076732

May, J.M., Hickey, M., Triantis, I. , Palazidou, E. & Kyriacou, P. A.view all authors (2015). Spectrophotometric analysis of Lithium Carbonate used for Bipolar Disorder. Biomedical Optics Express, 6(3), pp. 1067-1073. doi: 10.1364/boe.6.001067

May, J.M., Hickey, M., Triantis, I. , Palazidou, E. & Kyriacou, P. A.view all authors (2014). Optical analysis of Lithium Carbonate: Towards the development of a Portable Lithium Blood Level analyzer for Bipolar Disorder Patients. 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), pp. 2077-2080. doi: 10.1109/EMBC.2014.6944025

Kyriacou, P. A., Hickey, M. & Phillips, J. P. (2013). Pulse oximetry of body cavities and organs. Proceedings of 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), pp. 2664-2667. doi: 10.1109/EMBC.2013.6610088

Kyriacou, P. A., Hickey, M. & Phillips, J. P. (2013). Pulse oximetry of body cavities and organs. Paper presented at the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 03-07-2013 - 07-07-2013, Osaka, Japan. doi: 10.1109/EMBC.2013.6610088

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2012). A new fibre optic pulse oximeter probe for monitoring splanchnic organ arterial blood oxygen saturation. Computer Methods and Programs in Biomedicine, 29(3), pp. 387-390. doi: 10.1007/978-3-642-13039-7_97

Phillips, J. P., Hickey, M. & Kyriacou, P. A. (2012). Evaluation of Electrical and Optical Plethysmography Sensors for Noninvasive Monitoring of Hemoglobin Concentration. Sensors, 12(2), pp. 1816-1826. doi: 10.3390/s120201816

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2011). An in vivo investigation of photoplethysmographic signals and preliminary pulse oximetry estimation from the bowel using a new fiberoptic sensor. Anesthesia and Analgesia, 112(5), pp. 1104-1109. doi: 10.1213/ane.0b013e31820f8df3

Phillips, J. P., Hickey, M. & Kyriacou, P. A. (2011). Electro-optical Plethysmography for Non-invasive Estimation of Hemoglobin Concentration. Paper presented at the 2011 Annual International Conference of the IEEE, Aug. 30 2011-Sept. 3 2011, Boston, MA. doi: 10.1109/IEMBS.2011.6091079

Phillips, J. P., Hickey, M. & Kyriacou, P. A. (2011). Electro-optical Plethysmography for Non-invasive Estimation of Hemoglobin Concentration. 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC, pp. 4348-4351. doi: 10.1109/IEMBS.2011.6091079

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2011). Investigation of photoplethysmographic signals and blood oxygen saturation values obtained from human splanchnic organs using a fiber optic sensor. Journal of Clinical Monitoring and Computing, 25(4), pp. 245-255. doi: 10.1007/s10877-011-9302-4

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2010). Measurement of splanchnic photoplethysmographic signals using a new reflectance fiber optic sensor. Journal of Biomedical Optics, 15(2), article number 027012. doi: 10.1117/1.3374355

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2010). Preliminary assessment of abdominal organ perfusion utilizing a fiber optic photoplethysmographic sensor. In: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference. 2010 Annual International Conference of the IEEE, Aug. 31 2010-Sept. 4 2010, Buenos Aires. doi: 10.1109/IEMBS.2010.5627751

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2010). A New Fibre Optic Pulse Oximeter Probe for Monitoring Splanchnic Organ Arterial Blood Oxygen Saturation. Paper presented at the The 12th Mediterranean Conference on Medical and Biological Engineering and Computing, 27-05-2010 - 30-05-2010, Chalkidiki, Greece.

Hickey, M., Kyriacou, P. A., Samuels, N. , Randive, N., Chang, S. H., Maney, K. & Langford, R. M.view all authors (2009). Photoplethysmographic signals recorded from human abdominal organs using a fibreoptic probe. British Journal of Anaesthesia, 102(4), 572P-584P. doi: 10.1093/bja/aep007

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2009). In-Vivo Evaluation of a Fiber-Optic Splanchnic Photoplethysmographic Sensor during Open Laparotomy. Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE, 2009, pp. 1505-1508. doi: 10.1109/iembs.2009.5334159

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2009). Development and evaluation of a photometric fibre-optic sensor for monitoring abdominal organ photoplethysmographs and blood oxygen saturation. In: SPIE Proceedings. 20th International Conference on Optical Fibre Sensors doi: 10.1117/12.834307

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A.view all authors (2009). Photoplethysmographic signals from human splanchnic organs using a new fibre-optic sensor. Paper presented at the Annual National Conference of the Institute of Physics and Engineering in Medicine (IPEM), 14-16 Sep 2009, Liverpool, UK.

Hickey, M. & Kyriacou, P. A. (2007). Optimal spacing between transmitting and receiving optical fibres in reflectance pulse oximetry. Journal of Physics: Conference Series, 85, article number 12030.

Kyriacou, P. A. & Hickey, M. (2007). Development of a Reflectance Fibre-Optic Pulse Oximetry Probe for Use in Abdominal Organs. Paper presented at the The Annual National Conference of the Institute of Physics and Engineering in Medicine (IPEM 2007), 10-12 Sep 2007, Cardiff, UK.

Hickey, M. & Kyriacou, P. A. (2007). Development of a new splanchnic perfusion sensor. Paper presented at the 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 22-26 Aug 2007, Lyon, France. doi: 10.1109/IEMBS.2007.4352948

Hickey, M. & Kyriacou, P. A. (2007). Fibre-optic sensor for monitoring splanchnic perfusion. In: Gardner, JW (Ed.), Proceedings of the Fifth IASTED International Conference on Biomedical Engineering. The Fifth IASTED International Conference on Biomedical Engineering (BioMED 2007), 14-16 Feb 2007, Innsbruck, Austria.