Robert D O'Neill

Summary

Affiliation: University College Dublin
Country: Ireland

Publications

  1. ncbi request reprint Comparisons of platinum, gold, palladium and glassy carbon as electrode materials in the design of biosensors for glutamate
    Robert D O'Neill
    Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
    Biosens Bioelectron 19:1521-8. 2004
  2. ncbi request reprint The efficiency of immobilised glutamate oxidase decreases with surface enzyme loading: an electrostatic effect, and reversal by a polycation significantly enhances biosensor sensitivity
    Colm P McMahon
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Analyst 131:68-72. 2006
  3. doi request reprint Contributions by a novel edge effect to the permselectivity of an electrosynthesized polymer for microbiosensor applications
    Sharon A Rothwell
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Anal Chem 81:3911-8. 2009
  4. ncbi request reprint Characterization in vitro and in vivo of the oxygen dependence of an enzyme/polymer biosensor for monitoring brain glucose
    Blanaid M Dixon
    Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
    J Neurosci Methods 119:135-42. 2002
  5. pmc Enzyme immobilization strategies and electropolymerization conditions to control sensitivity and selectivity parameters of a polymer-enzyme composite glucose biosensor
    Sharon A Rothwell
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Sensors (Basel) 10:6439-62. 2010
  6. doi request reprint Effects of applied potential on the mass of non-conducting poly(ortho-phenylenediamine) electro-deposited on EQCM electrodes: comparison with biosensor selectivity parameters
    Sharon A Rothwell
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Phys Chem Chem Phys 13:5413-21. 2011
  7. ncbi request reprint Control of the oxygen dependence of an implantable polymer/enzyme composite biosensor for glutamate
    Colm P McMahon
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Anal Chem 78:2352-9. 2006
  8. doi request reprint Development of a voltammetric technique for monitoring brain dopamine metabolism: compensation for interference caused by DOPAC electrogenerated during homovanillic acid detection
    Ismael A L Mulla
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Analyst 134:893-8. 2009

Collaborators

  • Calum J McNeil
  • Sharon A Rothwell
  • John P Lowry
  • Colm P McMahon
  • Gaia Rocchitta
  • Pier A Serra
  • Ismael A L Mulla
  • Sarah M Kirwan
  • Blanaid M Dixon
  • Sarah J Killoran
  • Zainiharyati M Zain
  • Pier Andrea Serra
  • Michael E Kinsella

Detail Information

Publications8

  1. ncbi request reprint Comparisons of platinum, gold, palladium and glassy carbon as electrode materials in the design of biosensors for glutamate
    Robert D O'Neill
    Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
    Biosens Bioelectron 19:1521-8. 2004
    ..Other points affecting a final choice of substrate should include factors such as mass production issues...
  2. ncbi request reprint The efficiency of immobilised glutamate oxidase decreases with surface enzyme loading: an electrostatic effect, and reversal by a polycation significantly enhances biosensor sensitivity
    Colm P McMahon
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Analyst 131:68-72. 2006
    ..Differences in the behaviour of glucose biosensors of a similar configuration highlight a limitation of using glucose oxidase as a model enzyme in biosensor design...
  3. doi request reprint Contributions by a novel edge effect to the permselectivity of an electrosynthesized polymer for microbiosensor applications
    Sharon A Rothwell
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Anal Chem 81:3911-8. 2009
    ..2 mm. Sample biosensors, with a configuration based on these findings (25 microm diameter Pt fiber cylinders) and designed for brain neurotransmitter L-glutamate, behaved well in vitro in terms of Glu sensitivity and AA blocking...
  4. ncbi request reprint Characterization in vitro and in vivo of the oxygen dependence of an enzyme/polymer biosensor for monitoring brain glucose
    Blanaid M Dixon
    Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
    J Neurosci Methods 119:135-42. 2002
    ..We conclude that the oxygen sensitivity of Pt/PPD/GOx biosensors does not preclude their reliable use in media containing low glucose levels, such as brain ECF...
  5. pmc Enzyme immobilization strategies and electropolymerization conditions to control sensitivity and selectivity parameters of a polymer-enzyme composite glucose biosensor
    Sharon A Rothwell
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Sensors (Basel) 10:6439-62. 2010
    ....
  6. doi request reprint Effects of applied potential on the mass of non-conducting poly(ortho-phenylenediamine) electro-deposited on EQCM electrodes: comparison with biosensor selectivity parameters
    Sharon A Rothwell
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Phys Chem Chem Phys 13:5413-21. 2011
    ..The results highlight the usefulness of apparent permeabilities, especially of ascorbic acid, in revealing differences between PoPD layers electro-deposited under different conditions...
  7. ncbi request reprint Control of the oxygen dependence of an implantable polymer/enzyme composite biosensor for glutamate
    Colm P McMahon
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Anal Chem 78:2352-9. 2006
    ..Some differences between the properties of surface immobilized GluOx and glucose oxidase are highlighted...
  8. doi request reprint Development of a voltammetric technique for monitoring brain dopamine metabolism: compensation for interference caused by DOPAC electrogenerated during homovanillic acid detection
    Ismael A L Mulla
    UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
    Analyst 134:893-8. 2009
    ..These showed good linearity, LOD values, selectivity and stability during six days of continuous CPE exposure to a lipid medium, which served as an in-vitro model of CPE implantation in brain tissue for future applications...