Aoife Morrin

Dr.

Established in the field of electroanalytical device development for environmental and biomedical sensing applications. Background in conducting polymer materials for analytical biosensing applications extending to microfluidics and whole device system development.  Expertise in broader functional materials including stimuli-responsive materials giving improved performances due to nano-structuring, chemical functionalisation and mechanical properties.Current application focus is in wearable platforms, specifically epidermal sensing. Active research in understanding the volatile emission for the skin for translating into wearable biochemical sensing platforms. Sensor development approach based on materials including electrically-responsive hydrogels for integration with skin and functionalised magnetic nanomaterials for biomarker capture from tissue.Published >60 peer-reviewed research papers, 8 review papers, 1 edited book, 3 book chapters. (h-Index: 23; citations>2500).

Conference Contribution

Year Publication
2012 Morrin, A. (2012) Electrochem 2012: Electrochemical Horizons Conducting Polymers In microChannels For Electroanalytical Applications Dublin, 02/09/2012-04/09/2012.
2012 Morrin, A. (2012) 2nd International Symposium on Functional Nanomaterials 2012 Conducting Polymers In microChannels For Electroanalytical Applications Dublin, 06/09/2012-07/09/2012.
2011 Morrin, A. (2011) Eirelec 2011 Micro- and Nano-Templated Conducting Polymer Monoliths and Films For Lab-On-A-Chip Applications Adare, Linerick, Ireland, 16/05/2011-18/05/2011.
2011 Morrin, A. (2011) 75th Macromolecules Conference Micro-templated Conducting Polymers On-Chip Prague, 10/07/2011-14/07/2011.
2009 Galineau, J. (Speaker), White, B., Morrin, A., Smyth, M.R. (2009) 34th International Symposium on High-Performance Liquid Phase Separations and Related Techniques, HPLC 2009 EMµ: The Next Generation of Separation Science Dresden, Germany, 28/06/2009-02/07/2009.
2006 Morrin A. (2006) ESEAC 2006, Eleventh International Conference on Electroanalysis Nanomaterial And Nanostructuring Approaches For The Fabrication Of Conducting Polymer-Based Biosensors Bordeaux, France, 11/06/2006-15/06/2006.
2004 Morrin A. (2004) 3rd Biennial Conference on Analytical Sciences in Ireland Amperometric biosensors fabricated from polyaniline nanoparticles University College Cork, 09/09/2004-10/09/2004.
2016 Lyons, S., Brougham, B., Morrin, A. (2016) Analytical Research Forum Characterisation of superparamagnetic nanoparticle motion through an extracellular matrix mimic for application in diagnostics and therapeutics Burlington House, London, .
2016 Duffy, E., Jacobs, M., Kirby, B., Morrin, A. (2016) Skin Physiology International Meeting Probing skin physiology through the analysis of volatile metabolites towards non-­‐invasive dermatological screening and diagnostics Vichy, France, .
2016 Duffy, E., Jacobs, M., Kirby, B., Morrin, A. (2016) International Conference on Chromatography Non-invasive profiling of human skin volatiles for chronic skin conditions Cork, Ireland, .
2016 De Guzman K., Morrin, A (2016) 16th International Conference on Electroanalysis Smart tattoo for monitoring skin hydration using AC impedance Bath, UK, .
2016 Duffy, E., Jacobs, M., Kirby, B., Morrin, A. (2016) Wearable Smart Sensors and Technologies Human Skin Volatile Profiling for Point of Care Applications Burlington House, London, .
2016 Duffy, E., Jacobs, M., Kirby, B., Morrin, A. (2016) 5th Congress of WUWHS Minimally invasive analytical tools for monitoring skin hydration and volatile skin emissions Florence, Italy, .
2016 Morrin, A. (2016) 16th International Conference on Electroanalysis Towards Epidermal Sensing Bath, UK, .
2016 Duffy, E., Jacobs, M., Morrin, A (2016) 8th Conference on Analytical Science Ireland Analysing the human skin volatile signature Dublin, Ireland, .
2016 de Guzman K., Morrin, A (2016) 8th Conference on Analytical Science Ireland Monitoring Hydration Changes of a Hydrogel using a Screen-Printed Tattoo Sensor Dublin, Ireland, .
2016 Morrin, A. (2016) Wearable Smart Sensors and Technologies Towards Epidermal Sensing Burlington House, London, .
2012 Gorey, B., White, B., Smyth, M.R., Morrin, A. (2012) 14th International Conference on Electroanalysis, ESEAC 2012 Inverse-opal conducting polymer monoliths in micro-fluidic channels Portorož, Slovenia, 03/06/2012-07/06/2012.
2012 McKenna, N. White, B. Smyth, M.R. Morrin, A. (2012) Smart Surfaces 2012 Development Of A Rigid Conducting Polymer:Epoxy Composite For Use As A Robust Sensor Transducer Dublin, 06/03/2012-09/03/2012.
2011 Gorey, G., Newman, A., White, B., Morrin, A., Smyth M.R. (2011) Eirelec 2011, Electrochemistry: The Future? Development of 3-dimensional nanostructured unimodal and bimodal polystyrene templates Adare, Linerick, Ireland, 16/05/2011-18/05/2011.
2011 Gorey, B.; Morrin, A.; Smyth, M.R.; White, B.; Morrin, A.. (2011) Separation Science Europe Utilising 3D binary colloidal crystals to customise macropore and mesopore morphology and porosity London, 10/10/2011-11/10/2011.
2011 Crowley, K., Morrin, A., Smith, P., Killard, A.J., Smyth, M. R. (2011) Printed Functional Materials (PFM) 2011 Fabrication of inkjet printed inter-digitated electrodes and arrays for gas detection The Helix, Dublin City University, Dublin, Ireland, 12/09/2011-12/09/2011.
2011 Gorey, B., White, B., Morrin, A. Smyth, M.R. (2011) 6th Conference on Analytical Sciences (CASi) Production of polystyrene spheres for use as a templating material for polyaniline monolith structures The Helix, Dublin City University, Dublin, Ireland, 21/02/2011-22/02/2011.
2011 Weng, B., Morrin, A., Shephard, R., Crowley, K., Killard, A.J., Wallace G.G. (2011) Printed Functional Materials (PFM) 2011 Wholly printed polypyrrole-based biosensor on flexible substrate The Helix, Dublin City University, Dublin, Ireland, 12/09/2011-12/09/2011.
2011 Hayes, H., Crowley, K., Killard, A.J., Smyth, M.R., Morrin, A. (2011) 6th Conference on Analytical Sciences (CASi) Polyaniline-Silver Hybrid Materials For Ink-Jet Printing The Helix, Dublin City University, Dublin, Ireland, 21/02/2011-22/02/2011.
2011 Crowley, K., Morrin, A., M.R. Smyth, Killard, A.J. (2011) 6th Conference on Analytical Sciences (CASi) Sensors and electrochemical devices based on printed Nafion films The Helix, Dublin City University, Dublin, Ireland, 21/02/2011-22/02/2011.
2011 Crowley, K., Morrin, A., Killard, A.J. (2011) Printed Functional Materials (PFM) 2011 Printed sensor devices: From materials and fabrication to commercial application The Helix, Dublin City University, Dublin, Ireland, 12/09/2011-12/09/2011.
2011 Blignaut, I., Morrin, A., Regan, F. (2011) Analytical Research Forum (ARF) 2011 Rigid conducting composites as resistance sensors for the detection of petroleum leaks in pipelines Manchester, UK, 25/07/2011-28/07/2011.
2010 Galineau, J., White, B., Smyth, M.R. Morrin, A. (2010) Macro2010, IUPAC World Polymer Congress: Polymer Science in the Service of Society Electroactive monolith chips based on nanostructured polyaniline SECC, Glasgow, 11/07/2010-16/07/2010.
2009 Galineau, J., White, B., Morrin, A., Smyth, M.R. (2009) International Symposium on Functional Nanomaterials Ordered Polyaniline Honeycomb Structures Grown in Microfluidic Channels as Stationary Phases for Chip Chromatography Dublin City University, Ireland, 10/09/2009-11/09/2009.
2009 Morrin, A., White, B., Galineau, J., Smyth, M.R. (2009) 23rd International Symposium on Microscale Bioseparations Colloidal Crystals: First Step Towards Optical Chromatography in Microfluidic Devices Boston, 01/02/2009-05/02/2009.
2009 Gonzalez-Macia, L., Morrin, A., Smyth, M. R., Killard A. J. (2009) 42nd IUPAC Congress Chemistry Solutions Study of Hydrogen Peroxide Decomposition and Reduction on Metallic Surfaces SECC, Glasgow, 02/08/2009-07/08/2009.
2009 Morrin, A., Crowley, K., Twamley, B., Hayes, H., Lenhart, N., Killard A. J. (2009) International Symposium on Functional Nanomaterials Inkjet Printable Organic-Inorganic Hybrids Based On Polyaniline Dublin City University, Ireland, 10/09/2009-11/09/2009.
2009 Galineau, J., White, B., Morrin, A., Smyth, M.R. (2009) 21st International Ion Chromatography Symposium EMµ: The Next Generation of Separation Science Dublin, Ireland, 21/09/2009-24/09/2009.
2008 Karagianni, K., Morrin, A., Smyth, M.R., Killard, A. J. (2008) 5th Biennial Conference of Analytical Sciences Stabilisation of water-soluble and nanoparticulate polyanilines on carbon electrode Waterford Institute of Technology, Waterford, Ireland, 07/05/2008-09/05/2008.
2008 Morrin, A., Crowley, K., Ngamna, O., O’Malley, E., Killard, A. J., Wallace, G. G., Smyth, M. R. (2008) Printed Functional Materials Inkjet Printable Ammonia-Selective Platforms For Gas- & Bio-Sensing National Centre for Sensor Research, Dublin City University, 26/05/2008-26/05/2008.
2008 Winther-Jensen, O., Morrin, A., Masdarolomoor, F., Wallace, G. G. (2008) Printed Functional Materials Inkjet Printable Polyaniline-Poly(2-methoxyaniline-5-sulphonic acid) Nanocomposites For Electrochromic Devices Dublin City University, Ireland, 26/05/2008-27/05/2008.
2008 Galineau, J., Nie, F., White, B., Morrin, A., Killard, A.J., Smyth, M.R. (2008) 5th Biennial Conference of Analytical Sciences Colloidal crystals: First step toward optical chromatography in microfluidic devices Waterford Institute of Technology, Waterford, Ireland, 07/05/2008-09/05/2008.
2008 Gonzalez-Macia, L., Morrin, A., Smyth, M. R., Killard A. J. (2008) The 59th Annual Meeting of the International Society of Electrochemistry Polyaniline Nanoparticles for Sensing Applications University of Seville, Seville, Spain, 07/09/2008-12/09/2008.
2008 Karagianni, K., Morrin, A., Smyth, M. R., Killard, A. J. (2008) Printed Functional Materials Stabilisation Of Printable Water-Soluble Polyaniline On Carbon Electrodes National Centre for Sensor Research, Dublin City University, 26/05/2008-27/05/2008.
2008 Kazimierska, E., Luo, X., Muchindu, M., Morrin, A., Smyth, M. R., Killard, A. J. (2008) Printed Functional Materials Functional Structures of Polyaniline Materials for Sensor Applications National Centre for Sensor Research, Dublin City University, 26/05/2008-26/05/2008.
2008 Crowley, K., Morrin, A., Killard, A. J., Smyth, M. R. (2008) Printed Functional Materials Inkjet Printing Of Conducting Polymers On Patterned Electrode Substrates – Sensor Fabrication Using Inkjet Printing National Centre for Sensor Research, Dublin City University, 26/05/2008-27/05/2008.
2007 Morrin, A. (2007) Questor-PERF Meeting Biosensors: In-situ Monitoring Tool for the Petrochemical industry The Questor Centre, Queens University, Belfast, 12/07/2007-13/07/2007.
2007 Morrin, A. (2007) Workshop: Ink Jet Printing Functional Materials Inkjet Printing as a Tool for the Fabrication of Conducting Polymer-Based Sensors & Biosensors University of Wollongong, Australia, 06/12/2007-07/12/2007.
2007 Crowley, K., Morrin, A., Ngamna, O., O’Malley, E., Killard, A.J., Wallace, G.G., Smyth, M.R. (2007) Innovations in Inkjet Inkjet Printable Ammonia-Selective Platforms For Gas- & Bio-sensing University of Eindhoven, Holland, 28/06/2007-29/06/2007.
2006 Luo, X., Morrin, A., Killard, A.J., and Smyth, M.R. (2006) International Society of Electrochemistry, 57th Annual Meeting Microstructuring of polyaniline electrode films using silica nanoparticles Edinburgh, Scotland, 27/08/2006-01/09/2006.
2006 Ambrosi, A., Luo, X., Morrin, A., Killard, A.J., and Smyth, M.R. (2006) International Society of Electrochemistry, ISE Spring Meeting Performance Enhancement of Electrochemical Biosensors by Exploitation of Nanoparticles Singapore, 17/04/2006-20/04/2006.
2006 Luo, X., Killard, A.J., Morrin, A., and Smyth, M.R. (2006) ESEAC 2006, Eleventh International Conference on Electroanalysis Enhancement of a conducting polymer-based biosensor using carbon nanotube-doped polyaniline Bordeaux, France, 11/06/2006-15/06/2006.
2006 Morrin, A., Luo, X., Ngamna, O., McMorrow, C., O’Malley, E., Moulton, S., Killard, A.J., Wallace, G.G., and Smyth, M.R. (2006) ESEAC 2006, Eleventh International Conference on Electroanalysis Nanomaterial and nanostructuring approaches for the fabrication of conducting polymer-based biosensors Bordeaux, France, 11/06/2006-15/06/2006.
2005 Ambrosi, A., Morrin, A., Killard, A.J., Smyth, M.R. (2005) 57th Irish Universities Chemistry Research Colloquium Characterisation of an Amperometric Immunosensor Surface by Scanning Electron Microscopy National University of Ireland (NUI), Maynooth, 22/06/2005-24/06/2005.
2005 Morrin, A., Ngamna, O., Wallace, G.G., Killard, A.J., and Smyth, M.R. (2005) The Wollongong Workshop on Nanostructured Materials Enzyme biosensors based on nanoparticulate conducting polyaniline University of Wollongong, New South Wales, Australia, 03/02/2005-04/02/2005.
2004 Ngamna, O., Morrin, A., Grennan, K., Moulton, S.E., Killard, A.J., Smyth, M.R., Wallace, G.G. (2004) The International Conference on Synthetic Metals (ICSM) 2004. The Role and Impact of Nanoscience and Nanotechnologies Application of water-soluble sulphonated polyaniline as a novel biosensor Wollongong, New South Wales, Australia, 28/06/2004-02/07/2004.
2004 Ngamna, O., Morrin, A., Grennan, K., Moulton, S. E., Killard, A.J., Smyth, M.R., and Wallace, G.G. (2004) Interact 2004 Application of conducting polyaniline nanoparticles in the fabrication of a novel biosensor Gold Coast, Queensland, Australia, 04/07/2004-08/07/2004.
2004 Ngamna O., Morrin, A., Wallace, G., Killard, A.J., and Smyth, M.R. (2004) The International Conference on Synthetic Metals (ICSM) 2004. The Role and Impact of Nanoscience and Nanotechnologies Application of nanoparticulate conducting polyaniline in nanofilm biosensor technology Wollongong, New South Wales, Australia, 28/06/2004-02/07/2004.
2004 Ngamna, O., Morrin, A., Grennan, K., Moulton, S. E., Killard, A.J., Smyth, M.R., and Wallace, G.G. (2004) Interact 2004 Water-soluble sulphonated polyaniline: a novel conducting polymer platform for biosensors Gold Coast, Queensland, Australia, 04/07/2004-08/07/2004.
2004 Morrin, A., Ngamna, O., Lori, J., Wallace, G., Killard, A.J., and Smyth, M.R. (2004) ESEAC 2004 Tenth International Conference on Electroanalysis Application of nanoparticulate conducting polyaniline in nanofilm biosensor technology NUI Galway, 06/06/2004-10/06/2004.
2003 Morrin, A., Moutloali, R.M., Revaprasadu, N., Smyth, M.R., Darkwa, J., Iwuoha, E.I. (2003) Inaugural Conference of the Southern and Eastern Africa Network of Analytical Chemists High performance electro-catalytic nanosensor devices: (I) Cyclopentadienylnickel(II) thiolato Schiff base monolayer self-assembled on gold Gaborone, Botswana, 07/07/2003-10/07/2003.
2002 Morrin, A., Killard, A.J. and Smyth, M.R. (2002) Second Analytical Conference on Analytical Sciences in Ireland Development of a multichannel immunosensor for the analysis of menstrual hormones in urine Institute of Technology Tallaght, Dublin, Ireland, 04/04/2002-05/04/2002.
2002 Morrin, A, Guzman, A., Killard, A.J., Pingarron, J.M. and Smyth, M.R. (2002) Biosensors 2002 Elucidation of the mode of action of a conductive polymer-based electrochemical immunosensor Kyoto, Japan, 15/05/2002-17/05/2002.
2001 Morrin, A., Smyth, M.R. and Killard, A.J. (2001) Analytical Research Forum Incorporating Research and Development Topics Immunoelectrochemical methods of hormone analysis University of East Anglia, Norwich, UK, 16/07/2001-18/07/2001.

Book Chapter

Year Publication
2013 Power, A.C. Morrin, A. (2013) 'Electroanalytical Sensor Technology ' In: Dr. Mohammed Khalid (Ed.)(Eds.). : InTech.
2012 Morrin, A. (2012) 'Inkjet Printed Sensors' In: Germany : Wiley.
2011 Morrin, A., Luo, X.L., Killard, A.J., Smyth, M.R. (2011) 'Nanoparticles in Electrochemical Biosensors' In: Nalwa, H.S(Eds.). : American Scientific Publishers.

Peer Reviewed Journal

Year Publication
2017 De Guzman K., Morrin, A (2017) 'Screen-printed Tattoo Sensor towards the Non-invasive Assessment of the Skin Barrier'. Electroanalysis, .
2016 MacKenna N., Morrin A. (2016) 'Inducing macroporosity in hydrogels using hydrogen peroxide as a blowing agent'. JOURNAL OF MATERIALS CHEMISTRY (ONLINE), .
2015 Murphy, A;Gorey, B;de Guzman, K;Kelly, N;Nesterenko, EP;Morrin, A (2015) 'Microfluidic paper analytical device for the chromatographic separation of ascorbic acid and dopamine'. RSC Advances, 5 :93162-93169.
2015 Mac Kenna, N;Calvert, P;Morrin, A (2015) 'Impedimetric transduction of swelling in pH-responsive hydrogels'. The Analyst, 140 :3003-3011.
2015 Mac Kenna, N; Calvert, P; Morrin, A; Wallace, GG; Moulton, SE (2015) 'Electro-stimulated release from a reduced graphene oxide composite hydrogel'. Journal of Materials Chemistry B, 3 :2530-2537.
2014 Weng, B;Morrin, A;Shepherd, R;Crowley, K;Killard, AJ;Innis, PC;Wallace, GG (2014) 'Wholly printed polypyrrole nanoparticle-based biosensors on flexible substrate'. Journal of Materials Chemistry B, 2 :793-799.
2014 Gorey, B;Smyth, MR;Morrin, A;White, B (2014) 'Fabrication of a 3-dimensional nanostructured binary colloidal crystal within a confined channel'. Journal of Colloid and Interface Science, 436 :211-217.
2014 Gorey, B;Smyth, MR;White, B;Morrin, A (2014) 'Fabrication of homogenous three dimensionally ordered conducting polymer-polystyrene opal structures in microfluidic channels'. Journal of Materials Chemistry C, 2 :6004-6009.
2014 Floris, P;Connolly, D;White, B;Morrin, A (2014) 'Development and characterisation of switchable polyaniline-functionalised flow-through capillary monoliths'. RSC Advances, 4 :43934-43941.
2013 Subramanian, R;Crowley, K;Morrin, A;Killard, AJ (2013) 'A sensor probe for the continuous in situ monitoring of ammonia leakage in secondary refrigerant systems'. Analytical Methods, 5 :134-140.
2013 Power, A;White, B;Morrin, A (2013) 'Microfluidic thin-layer flow cell for conducting polymer growth and electroanalysis'. Electrochimica Acta, 104 :236-241.
2012 Suman O'Reilly E. Kelly M. Morrin, A. Smyth, M.R. Killard, A.J. (2012) 'Chronocoulometric determination of urea in human serum using an inkjet printed biosensor'. Analytica Chimica Acta, 697 :98-102.
2012 Gorey, B;Galineau, J;White, B;Smyth, MR;Morrin, A (2012) 'Inverse-Opal Conducting Polymer Monoliths in Microfluidic Channels'. Electroanalysis, 24 :1318-1323.
2011 Suman;O'Reilly, E;Kelly, M;Morrin, A;Smyth, MR;Killard, AJ (2011) 'Chronocoulometric determination of urea in human serum using an inkjet printed biosensor'. Analytica Chimica Acta, 697 :98-102.
2011 Gonzalez-Macia, L;Smyth, MR;Morrin, A;Killard, AJ (2011) 'Enhanced electrochemical reduction of hydrogen peroxide at metallic electrodes modified with surfactant and salt'. Electrochimica Acta, 58 :562-570.
2011 Gonzalez-Macia, L;Smyth, MR;Morrin, A;Killard, AJ (2011) 'Enhanced electrochemical reduction of hydrogen peroxide on silver paste electrodes modified with surfactant and salt'. Electrochimica Acta, 56 :4146-4153.
2011 Lenhart, N;Crowley, K;Killard, AJ;Smyth, MR;Morrin, A (2011) 'Inkjet printable polyaniline-gold dispersions'. Thin Solid Films, 519 :4351-4356.
2011 Gonzalez-Macia, L., Smyth, M.R., Morrin, A., Killard, A.J. (2011) 'Enhanced electrochemical reduction of hydrogen peroxide on silver paste electrodes modified with surfactant and salt'. 56 :4146-4153.
2010 Somerset V.;Leaner J.;Mason R.;Iwuoha E.;Morrin A. (2010) 'Determination of inorganic mercury using a polyaniline and polyaniline-methylene blue coated screen-printed carbon electrode'. International Journal of Environmental Analytical Chemistry, 90 (9):671-685.
2010 Muchindu M.;Waryo T.;Arotiba O.;Kazimierska E.;Morrin A.;Killard A.;Smyth M.;Jahed N.;Kgarebe B.;Baker P.;Iwuoha E. (2010) 'Electrochemical nitrite nanosensor developed with amine- and sulphate-functionalised polystyrene latex beads self-assembled on polyaniline'. Electrochimica Acta, 55 (14):4274-4280.
2010 Crowley K, Morrin A., Shepherd R.L., Panhuis M.I.H., Wallace G.G., Smyth M.R., Killard A.J. (2010) 'Fabrication of polyaniline-based gas sensors using Piezoelectric inkjet and screen printing for the detection of hydrogen sulfide'. IEEE Sensors Journal, 10 :1419-1426.
2010 Crowley K.;Morrin A.;Shepherd R.;In Het Panhuis M.;Wallace G.;Smyth M.;Killard A. (2010) 'Fabrication of polyaniline-based gas sensors using piezoelectric inkjet and screen printing for the detection of hydrogen sulfide'. IEEE Sensors Journal, 10 (9):1419-1426.
2010 Somerset V.;Leaner J.;Mason R.;Iwuoha E.;Morrin A. (2010) 'Development and application of a poly(2,2′-dithiodianiline) (PDTDA)-coated screen-printed carbon electrode in inorganic mercury determination'. Electrochimica Acta, 55 (14):4240-4246.
2009 Kazimierska E. Muchindu M. Morrin A. Iwuoha E. Smyth M. R. Killard A.J. (2009) 'The fabrication of structurally multiordered polyaniline films and their application in electrochemical sensing and biosensing'. 21 :595-603.
2009 Kazimierska, E;Muchindu, M;Morrin, A;Iwuoha, E;Smyth, MR;Killard, AJ (2009) 'ELECTROANALYSIS'. Electroanalysis, 21 :595-603.
2008 Ambrosi, A., Morrin, A., Smyth, M.R., Killard, A.J. (2008) 'The application of conducting polymer nanoparticle electrodes to the sensing of ascorbic acid'. Analytica Chimica Acta, 609 :37-43.
2008 Morrin, A;Ngamna, O;O'Malley, E;Kent, N;Moulton, SE;Wallace, GG;Smyth, MR;Killard, AJ (2008) 'The fabrication and characterization of inkjet-printed polyaniline nanoparticle films'. Electrochimica Acta, 53 :5092-5099.
2008 Crowley, K;Morrin, A;Hernandez, A;O'Malley, E;Whitten, PG;Wallace, GG;Smyth, MR;Killard, AJ (2008) 'Fabrication of an ammonia gas sensor using inkjet-printed polyaniline nanoparticles'. Talanta, 77 :710-717.
2008 Crowley, K., O’Malley, E., Morrin, A., Smyth, M.R., Killard, A.J. (2008) 'An aqueous ammonia sensor based on an inkjet-printed polyaniline nanoparticle-modified electrode'. THE ANALYST (PRINT), 133 :391-399.
2008 Crowley K. Morrin A. Hernandez A. Smyth M.R. Killard A.J. (2008) 'Fabrication of an ammonia gas sensor using inkjet-printed polyaniline nanoparticles'. Talanta, 77 :710-717.
2008 Crowley, K;O'Malley, E;Morrin, A;Smyth, MR;Killard, AJ (2008) 'An aqueous ammonia sensor based on an inkjet-printed polyaniline nanoparticle-modified electrode'. The Analyst, 133 :391-399.
2008 Ambrosi, A;Morrin, A;Smyth, MR;Killard, AJ (2008) 'The application of conducting polymer nanoparticle electrodes to the sensing of ascorbic acid'. Analytica Chimica Acta, 609 :37-43.
2007 Ambrosi, A;Morrin, A;Killard, AJ;Smyth, MR (2007) 'ELECTROANALYSIS'. Electroanalysis, 19 :244-252.
2007 Luo, XL;Vidal, GD;Killard, AJ;Morrin, A;Smyth, MR (2007) 'Nanocauliflowers: A nanostructured polyaniline-modified screen-printed electrode with a self-assembled polystyrene template and its application in an amperometric enzyme biosensor'. Electroanalysis, 19 :876-883.
2007 Luo, XL;Killard, AJ;Morrin, A;Smyth, MR (2007) 'In situ electropolymerised silica-polyaniline core-shell structures: Electrode modification and enzyme biosensor enhancement'. Electrochimica Acta, 52 :1865-1870.
2007 Luo, X., Killard, A.J., Morrin, A., Smyth, M.R. (2007) 'In-situ electropolymerised silica–polyaniline core–shell structures: electrode modification and enzyme biosensor enhancement'. 52 :1865-1870.
2007 Ngamna, O, Morrin, A., Killard, A.J., Smyth, M.R., Wallace, G.G. (2007) 'Inkjet Printing: Fabrication Approach for a Chemical Sensor Platform based on Polyaniline Nanoparticles'. 23 :8569-8574.
2007 Luo, X., Vidal, G.D., Killard, A.J., Morrin, A., Smyth, M.R. (2007) 'Nanocauliflowers: A nanostructured polyaniline-modified screen-printed electrode with a self-assembled polystyrene template and its application in an amperometric enzyme biosensor'. 19 :876-883.
2007 Luo, XL;Killard, AJ;Morrin, A;Smyth, MR (2007) 'Electrochemical preparation of distinct polyaniline nanostructures by surface charge control of polystyrene nanoparticle templates'. Chemical Communications, :3207-3209.
2006 Luo, X.L., Morrin A., Killard, A.J., Smyth, M.R. (2006) 'Application of nanoparticles in electrochemical sensors and biosensors'. 18 :319-326.
2006 Lori, JA;Morrin, A;Killard, AJ;Smyth, MR (2006) 'Development and characterization of nickel-NTA-polyaniline modified electrodes'. Electroanalysis, 18 :77-81.
2006 Luo, X., Killard, A.J., Morrin, A., Smyth, M.R. (2006) 'Enhancement of a conducting polymer-based biosensor using carbon nanotube-doped polyaniline'. Analytica Chimica Acta, 575 :39-44.
2006 Lori, J.A., Morrin, A., Killard, A.J., Smyth, M.R. (2006) 'Development and characterisation of Nickel-NTA-polyaniline modified electrodes'. 18 :77-81.
2006 Luo, XL;Killard, AJ;Morrin, A;Smyth, MR (2006) 'Enhancement of a conducting polymer-based biosensor using carbon nanotube-doped polyaniline'. Analytica Chimica Acta, 575 :39-44.
2005 Ngamna, O;Morrin, A;Moulton, SE;Killard, AJ;Smyth, MR;Wallace, GG (2005) 'SYNTHETIC METALS'. Synthetic Metals, 153 :185-188.
2005 Morrin, A;Ngamna, O;Killard, AJ;Moulton, SE;Smyth, MR;Wallace, GG (2005) 'An amperometric enzyme biosensor fabricated from polyaniline nanoparticles'. Electroanalysis, 17 :423-430.
2005 Ngamna, O., Morrin, A., Moulten, S.E., Killard, A.J., Smyth, M.R., Wallace, G.G. (2005) 'An HRP based biosensor using water-soluble sulphonated polyaniline'. Synthetic Metals, 153 :185-188.
2005 Morrin, A., Ngamna, O., Killard, A.J., Moulton, S.E., Smyth, M.R., Wallace, G.G. (2005) 'An amperometric polyaniline enzyme biosensor fabricated from nanoparticles'. 17 :423-430.
2005 Morrin, A., Weelber, F., Ngamna, O., Moulton, S.E., Killard, A.J., Wallace, G.G. and Smyth, M.R. (2005) 'Novel biosensor fabrication methodology based on processable conducting polyaniline nanoparticles'. Electrochemistry Communications, 7 :317-322.
2005 Aoife Morrin , Frank Wilbeer , Orawan Ngamna , Simon E. Moulton , Anthony J. Killard , Gordon G. Wallace , Malcolm R. Smyth (2005) 'Novel biosensor fabrication methodology based on processable conducting polyaniline nanoparticles '. Electrochemistry Communications, 7 :317-322.
2005 Aoife Morrin , Orawan Ngamna , Anthony J. Killard , Simon E. Moulton , Malcolm R. Smyth , Gordon G. Wallace (2005) 'An amperometric enzyme biosensor fabricated from polyaniline nanoparticles'. 17 :423-430.
2005 Morrin, A;Wilbeer, F;Ngamna, O;Moulton, SE;Killard, AJ;Wallace, GG;Smyth, MR (2005) 'Novel biosensor fabrication methodology based on processable conducting polyaniline nanoparticles'. Electrochemistry Communications, 7 :317-322.
2004 Aoife Morrin , Richard M. Moutloali , Anthony J. Killard , Malcolm R. Smyth , James Darkwa , Emmanuel I. Iwuoha (2004) 'Organic phase cyclopentadienylnickelthiolate sensor system for electrochemical determination of sulfur dioxide '. 16 :1944-1948.
2004 Emmanuel I. Iwuoha , Avril R. Williams-Dottin , Lincoln A. Hall , Aoife Morrin , Gretta N. Mathebe , Malcolm R. Smyth , Anthony J. Killard (2004) 'Electrochemistry and application of a novel monosubstituted squarate electron-transfer mediator in a glucose oxidase-doped poly(phenol) sensor '. Pure and Applied Chemistry, 76 :789-799.
2004 Morrin, A., Moutloali, R.M., Killard, A.J., Smyth, M.R., Darkwa, J., Iwuoha, E.I. (2004) 'Organic phase cyclopentadienylnickel thiolate sensor system for electrochemical determination of sulfur dioxide'. 16 :1944-1948.
2004 Mathebe, N.G.R., Morrin, A., Iwuoha, E.I. (2004) 'Electrochemistry and scanning electron microscopy of polyaniline/peroxidase-based biosensor'. Talanta, 64 :115-120.
2004 Iwuoha, E.I., Williams-Dottin, A.R., Hall, L.A., Morrin, A., Mathebe, G.N., Smyth, M.R., Killard, A. (2004) 'Electrochemistry and application of novel monosubstituted squarate electron-transfer mediator in glucose oxidase-doped poly(phenol) sensor'. 76 :789-799.
2004 Morrin, A., Moutloali, R. M., Mathebe, N. G., Killard, A. J., Smyth, M. R., Darkwa, J., Iwuoha, E. I. (2004) 'Electrocatalytic sensor devices: (I) cyclopentadienylnickel(II) thiolato Schiff base monolayer self-assembled on gold'. Talanta, 64 :30-38.
2004 Iwuoha, EI;Williams-Dottin, AR;Hall, LA;Morrin, A;Mathebe, GN;Smyth, MR;Killard, A (2004) 'PURE AND APPLIED CHEMISTRY'. Pure and Applied Chemistry, 76 :789-799.
2004 Morrin, A;Moutloali, RM;Killard, AJ;Smyth, MR;Darkwa, J;Iwuoha, EI (2004) 'Organic phase cyclopentadienylnickelthiolate sensor system for electrochemical determination of sulfur dioxide'. Electroanalysis, 16 :1944-1948.
2003 Morrin, A;Killard, AJ;Smyth, MR (2003) 'Electrochemical characterization of commercial and home-made screen-printed carbon electrodes'. Analytical Letters, 36 :2021-2039.
2003 Morrin, A., Killard, A.J., and Smyth, M.R. (2003) 'Electrochemical characterisation of commercial and home-made screen-printed carbon electrodes'. Analytical Letters, 36 :2021-2039.
2003 Morrin, A, Guzman, A., Killard, A.J., Pingarron, J.M. and Smyth, M.R. (2003) 'Characterisation of horseradish peroxidase immobilisation on an electrochemical biosensor by colorimetric and amperometric techniques'. BIOSENSORS & BIOELECTRONICS, 18 :715-720.
Certain data included herein are derived from the © Web of Science (2021) of Clarivate. All rights reserved.

Research Interests

Analytical and Materials Chemistry

  • Electroanalytical devices for environmental and biomedical sensing applications
  • Stimuli-responsive materials characterisation and application
  • Electro-responsive architectures in chromatography, sensing and drug delivery
  • Epidermal sensing


Recent Publication Highlights

Robust epidermal tattoo electrode platform for skin physiology monitoring
DOI: 10.1039/C8AY02678E (Paper) Anal. Methods, 2019, Advance Article
An epidermal tattoo sensing platform comprising silver-based electrodes for direct skin physiology monitoring is reported here. The platform uses an assembly of screen-printed elastomeric silver electrodes interfaced with a porous acrylate-based adhesive layer. The elastomeric nature of the electrodes and the inclusion of the porous adhesive layer were demonstrated to improve adhesion strength, lower stiffness and increase fracture strain of the platform. The porous adhesive layer in particular was shown to improve mechanical properties of the platform without impacting on the electrical measurement of viable tissue resistance (Rvt) by the electrodes. Rvt values as measured by the wearable tattoo platform were shown to correlate with tissue dielectric constant (TDC) measurements in a participant study. Topical treatment studies were also carried out whereby single frequency impedance responses of the electrodes was shown to relate to the absorption characteristics of the treatment into the skin. Overall, the work contributes to the area of epidermal sensing and electronics whereby approaches to achieve optimum mechanical properties as well as good electrical fidelity in an epidermal sensor platform are critical to developing wearable sensors for taking robust analytical measurements related to skin physiology.

Endogenous and microbial volatile organic compounds in cutaneous health and disease
2018 TrAC Trends in Analytical Chemistry https://doi.org/10.1016/j.trac.2018.12.012
Human skin is a region of high metabolic activity where a rich variety of biomarkers are secreted from the stratum corneum. The skin is a constant source of volatile organic compounds (VOCs) derived from skin glands and resident microbiota. Skin VOCs contain the footprints of cellular activities and thus offer unique insights into the intricate processes of cutaneous physiology. This review examines the growing body of research on skin VOC markers as they relate to skin physiology, whereby variations in skin-intrinsic and microbial metabolic processes give rise to unique volatile profiles. Emerging evidence for volatile biomarkers linked to skin perturbations and skin cancer are examined. Microbial-derived VOCs are also investigated as prospective diagnostic markers, and their potential to shape the composition of the local skin microbiota, and consequently cutaneous health, is considered. Finally, a brief outlook on emerging analytical challenges and opportunities for skin VOC-based research and diagnostics is presented.

Screen-printed Tattoo Sensor towards the Non-invasive Assessment of the Skin Barrier
2017 Electroanalysis. DOI:10.1002/elan.201600572
The development and characterisation of a screen-printed tattoo sensor for the non-invasive assessment of the skin barrier is presented. A screen-printed silver tattoo sensor comprising two concentric circle electrodes was fabricated and applied and characterised initially on a soft tissue mimic. It was shown that the tattoo was capable of tracking changes in water content in the soft tissue mimic using impedance spectroscopy. The tattoo sensors were then applied to porcine and human skins and impedance spectroscopy was used to interrogate the skin at the outer stratum corneum (SC). The SC is a layer of great interest from a dermatological point of view since it plays a critical role in the barrier function of the skin by protecting underlying tissue from infection, dehydration, chemical irritants and mechanical stress. Hydration changes were tracked in the skin using the impedance approach and validated against a tissue dielectric constant (TDC) measurement taken with the MoistureMeterD (MMD, Delfin Technologies). The impedimetric results obtained using the tattoo sensor were modelled into proposed circuit models representative of the systems measured. From this study, the potential of using wearable tattoo electrodes coupled with impedance spectroscopy as a transduction technique, to investigate skin barrier status offers considerable promise towards the monitoring and self-management of skin health.


Inducing macroporosity in hydrogels using hydrogen peroxide as a blowing agent


Mater. Chem. Front., 2017, Advance Article DOI: 10.1039/C6QM00052E
Abstract: A new gas blowing method to induce a macroporous structure in pH-responsive hydrogel materials with basic functional groups is reported by a new technique that generates oxygen bubbles via hydrogen peroxide decomposition to template the polymer. This overcomes pH limitations associated with the more traditional approach of using a carbon dioxide gas blowing agent. This new approach is shown to effectively induce a macroporous structure which overcomes the diffusional limitation of bulk hydrogels and, as a result, dramatically increases swelling rates. The hydrogel comprises an aliphatic diamine, Jeffamine®, cross-linked with polyethylene glycol diglycidyl ether (PEGDGE) in a single simple polymerisation step, generating a polymeric network with pendant basic groups. This cross-linking reaction requires protonation of the amine groups, which precludes it from being compatible with the carbon dioxide gas blowing method as this requires a low pH for the decomposition of carbonate. To overcome this, the production of oxygen bubbles in situ via a catalytic decomposition of hydrogen peroxide on silver nanoparticles is used to induce a macroporous structure in the hydrogel. This method was shown to successfully induce a macroporous structure whereby interconnected pores from sub-micron up to 0.5 mm diameter are created within the hydrogel. This new method of inducing macroporosity is described here in terms of the hydrogel polymerisation conditions and the nature of the porosity is characterised in terms of its ability to overcome the diffusional limitations of bulk hydrogels. Finally, rapid, reversible pulsatile pH-sensing is demonstrated using these hydrogels.



Microfluidic paper analytical device for the chromatographic separation of ascorbic acid and dopamine 



RSC Adv., 2015,5, 93162-93169 DOI: 10.1039/C5RA16272F
Abstract:
Cellulose-based filter papers were used as base materials to construct microfluidic paper-based analytical devices (μPADs) coupling a separation channel with electrochemical detection. Channel widths were defined by hydrophobic wax, and gold-sputtering through a mask was used to pattern an electrochemical cell at the end of the channel. The physical properties and surface chemistries of various filter papers were studied with respect to the separation of ascorbic acid (AA) and dopamine (DA). Both porosity as well as the ion-exchange capacity of the filter papers were found to influence the separation. Under the conditions used, Whatman grade P81 strong cation exchange paper based on cellulose phosphate was found to fully retain DA. Detection of both AA and DA was achieved on the other filter papers, however, different behaviours were observed. Whatman 4 could not resolve AA from DA while VWR 413 could achieve baseline separation under the conditions used. Depending on the level of oxidative treatment that they undergo, cellulose papers can have carboxyl groups present on the fibres that can act as sources of ion-exchange sites, thus making these types of papers potentially useful for ion-exchange separations. The ion-exchange capacities of the filter papers were investigated and quantified. It was shown that the ion-exchange properties of the papers evaluated varied dramatically. Furthermore, eluent ionic strength and pH were optimised to achieve a baseline resolution of AA and DA. The limit of detection of DA was 3.41 μM when analysed in the presence of 1 mM AA showing the potential of this μPAD for the detection of catecholamines in biological samples containing high concentrations of AA.




Electro-stimulated release from a reduced graphene oxide composite hydrogel


Journal of Materials of Chemistry B (2015,3, 2530-2537 DOI: 10.1039/C5TB00050E)
Abstract: Electro-stimulated release was established using a novel, electro-conductive hydrogel system comprising Jeffamine polyetheramine and polyethylene glycol diglycidyl ether (PEGDGE) that was composited with reduced graphene oxide (rGO). The swelling response, morphology, mechanical and electrochemical properties of the composite hydrogel were investigated. Enhanced mechanical and electrical properties were observed with increased rGO content. Passive and electro-stimulated release of methyl orange (MO) from these gels was examined. A significant reduction in passive release of the dye was observed by incorporating rGO. Upon electrical stimulation, the release rate and dosage could be tuned through variation of the % w/w rGO, as well as the polarity and amplitude of the applied electric potential. A high level of control and flexibility was achieved demonstrating the applicability of this system for localised drug delivery applications.


Impedimetric transduction of swelling in pH-responsive hydrogels

Analyst (2015 DOI: 10.1039/C4AN02252A)
Abstract: A pH-responsive hydrogel composed of an aliphatic diamine cross-linked with polyethylene glycol diglycidyl ether (PEGDGE) using a single, rapid polymerisation step has been used to detect glucose by entrapping glucose oxidase (GOx) within its cationic network. The swelling response of hydrogel disks on exposure to glucose were optimised through variation of factors including the cross-linking density of the network, GOx loading and the addition of catalase. Hydrogel-modified carbon cloth electrodes were also prepared and characterised using voltammetric and impedimetric techniques. Non-faradaic electrochemical impedance spectroscopy (EIS) and gravimetry were both employed to track the swelling response of the gels quantitatively. The clear potential of utilising impedance to transduce hydrogel swelling was demonstrated where a linear decrease in gel resistance (Rgel) corresponding to the swelling response was observed in the range 1 to 100 μM. A dramatic increase in the limit of detection of six orders of magnitude over the gravimetric measurement was achieved (from 0.33 mM to 0.08 μM). This increased sensitivity, coupled with the textile-based electrode substrate approach opens the potential applicability of this system for monitoring glucose concentration via the skin by sweat or interstitial fluid (ISF).


Contract Researchers

Researcher Name Project Funding Body
Eoin Murray IRC Employment based PhD with Tellabs
Keana de Guzman SSCIN
Stephen Lyons SSCIN
Emer Duffy SSCIN