Now showing items 16-28 of 28

  • Mathematical modelling of quantum yield enhancements of methyl orange photooxidation in aqueous TiO2 suspensions under controlled periodic UV LED illumination. 

    Tokode, Oluwatosin; Prabhu, Radhakrishna; Lawton, Linda A.; Robertson, Peter K. J. (Elsevier http://dx.doi.org/10.1016/j.apcatb.2014.03.046, 2014-03-30)
    TOKODE, O., PRABHU, R., LAWTON, L.A. and ROBERTSON, P.K.J. 2014. Mathematical modelling of quantum yield enhancements of methyl orange photooxidation in aqueous TiO2 suspensions under controlled periodic UV LED illumination. Applied catalysis B: environmental [online], 156-157, pages 398-403. Available from: http://dx.doi.org/10.1016/j.apcatb.2014.03.046
    Quantum yields of the photocatalytic degradation of methyl orange under controlled periodic illumination (CPI) have been modelled using existing models. A modified Langmuir-Hinshelwood (L-H) rate equation was used to predict ...
  • Microstructure encryption and decryption techniques in optical variable and invariable devices in printed documents for security and forensic applications. 

    Ambadiyil, Sajan; Jayan, K. G.; Prabhu, Radhakrishna; Pillai, V. P. Mahadevan (SPIE https://doi.org/10.1117/12.2179635, 2015-05-05)
    AMBADIYIL, S., JAYAN, K.G., PRABHU, R. and PILLAI, V.P.M. 2015. Microstructure encryption and decryption techniques in optical variable and invariable devices in printed documents for security and forensic applications. In Baldini, F., Homala, J. and Lieberman, R.A. (eds.) Proceedings of the SPIE optical sensors 2015 conference, 9506, 13-16 April 2016, Prague, Czech Republic. Bellingham, WA: SPIE [online]. Available from: https://doi.org/10.1117/12.2179635
    Today, document counterfeiting is a global menace because of the advanced technologies available at ever decreasing prices. Instead of eschew the paper documents; applying efficient cost effective security methodologies ...
  • Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems. 

    Pestana, Carlos Joao (Robert Gordon University School of Pharmacy and Life Sciences, 2012-04)
    Cyanobacterial secondary metabolites can cause serious harm to animals and humans (cyanotoxins) and can have a major financial impact on the potable water and aquaculture industries (taste and odour compounds). ...
  • Numerical investigation of nanostructured silica PCFs for sensing applications. 

    Johny, Jincy; Prabhu, Radhakrishna; Fung, Wai-Keung (Springer https://doi.org/10.1007/s11837-017-2366-y, 2017-05-03)
    JOHNY, J., PRABHU, R. and FUNG, W.K. 2017. Numerical investigation of nanostructured silica PCFs for sensing applications. Journal of The Minerals, Metals and Materials Society [online], Latest Articles. Available from: https://doi.org/10.1007/s11837-017-2366-y
    Photonic crystal fibers (PCFs) developed using nanostructured composite materials provide special optical properties. PCF light propagation and modal characteristics can be tailored by modifying their structural and material ...
  • Pharmaceutical electrochemistry: The electrochemical detection of asprin utilising screen printed graphene electrodes as sensors platforms. 

    Kruanetr, Senee; Prabhu, Radhakrishna; Pollard, Pat; Fernandez, Carlos (Springer http://dx.doi.org/10.3103/S1068375515030114, 2015-07-15)
    KRUANETR, S., PRABHU, R., POLLARD, P. and FERNANDEZ, C. 2015. Pharmaceutical electrochemistry: The electrochemical detection of asprin utilising screen printed graphene electrodes as sensors platforms. Surface engineering and applied electrochemistry [online], 51(3), pages 283-289. Available from: http://dx.doi.org/10.3103/S1068375515030114
    A sensitive electrochemical sensor was designed for acetyl salicylic acid detection using graphene modified Screen Printed Electrodes. The electrochemical response of the sensor with graphene was improved compared to Screen ...
  • Photocatalytic degradation of eleven microcystin variants and nodularin by TiO2 coated glass microspheres. 

    Pestana, Carlos J.; Edwards, Christine; Prabhu, Radhakrishna; Robertson, Peter K. J.; Lawton, Linda A. (Elsevier http://dx.doi.org/10.1016/j.jhazmat.2015.07.016, 2015-12-30)
    PESTANA, C. J., EDWARDS, C., PRABHU, R., ROBERTSON, P. K. J. and LAWTON, L. A., 2015. Photocatalytic degradation of eleven microcystin variants and nodularin by TiO2 coated glass microspheres. Journal of Hazardous Materials, Vol. 300, pp. 347-353.
    Microcystins and nodularin are toxic cyanobacterial secondary metabolites produced by cyanobacteria that pose a threat to human health in drinking water. Conventional water treatment methods often fail to remove these ...
  • Photocatalytic destruction of volatile organic compounds from the oil and gas industry. 

    Tokode, Oluwatosin (Robert Gordon University School of Engineering, 2014-04)
    Heterogeneous photocatalysis is an advanced oxidation technology widely applied in environmental remediation processes. It is a relatively safe and affordable technology with a low impact on the environment and has found ...
  • Rare elements electrochemistry: the development of a novel electrochemical sensor for the rapid detection of Europium in environmental samples using gold electrode modified with 2-pyridinol-1-oxide. 

    Cruickshank, Laura; Officer, Simon J.; Pollard, Pat; Prabhu, Radhakrishna; Stutter, Mark; Fernandez, Carlos (Japan Society for Analytical Chemistry http://dx.doi.org/10.2116/analsci.31.623, 2015-07)
    CRUICKSHANK, L., OFFICER, S., POLLARD, P., PRABHU, R., STUTTER, M. and FERNANDEZ, C., 2015. Rare elements electrochemistry: the development of a novel electrochemical sensor for the rapid detection of Europium in environmental samples using gold electrode modified with 2-pyridinol-1-oxide. Analytical Sciences, 31 (7), pp. 623-627.
    This work presents for the first time the electrochemical determination of europium using cyclic voltammetry at gold electrodes modified with 2-pyridinol-1-oxide. A well-defined oxidation peak was observed in cyclic ...
  • Rate-dependent polymer adsorption in porous media. 

    Idahosa, Patrick E.G.; Oluyemi, Gbenga Folorunso; Oyeneyin, Babs; Prabhu, Radhakrishna (Elsevier http://dx.doi.org/10.1016/j.petrol.2016.02.020, 2016-02-23)
    IDAHOSA, P.E.G., OLUYEMI, G.F., OYENEYIN, M.B. and PRABHU, R. 2016. Rate-dependent polymer adsorption in porous media. Journal of petroleum science and engineering [online], 143, pages 65-71. Available from: https://dx.doi.org/10.1016/j.petrol.2016.02.020.
    Laboratory core flood experiments were conducted at different flow rates with partially hydrolysed polyacrylamide (HPAM) oilfield Enhanced Oil Recovery (EOR) polymer and silica sand to investigate the polymer retention in ...
  • Rheological behaviour of single-phase non-Newtonian polymer solution in complex pore geometry: a simulation approach. 

    Idahosa, Patrick E.G.; Oluyemi, Gbenga Folorunso; Prabhu, Radhakrishna; Oyeneyin, Babs (COMSOL https://www.comsol.com/paper/rheological-behaviour-of-single-phase-non-newtonian-polymer-solution-in-complex--18685, 2014-09-17)
    IDAHOSA, P., OLUYEMI, G., PRABHU, R. and OYENEYIN, B. 2014. Rheological behaviour of single-phase non-Newtonian polymer solution in complex pore geometry: a simulation approach. In Proceedings of the 2014 COMSOL conference, 17-19 September 2014, Cambridge, UK. Burlington: COMSOL [online], pages 2372-2215. Available from: https://www.comsol.com/paper/rheological-behaviour-of-single-phase-non-newtonian-polymer-solution-in-complex--18685
    One of the most important criteria for evaluating chemical enhanced oil recovery (EOR) processes that use polymers is its rheological behaviour which in turn account for other physical effects of adsorption and resistance ...
  • Solvent effects on lasing characteristics for Rh B laser dye. 

    Peter, Jaison; Kumar, Mahesh; Ananad, V. R.; Saleem, Rasool; Sebastian, Ananthu; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G.; Prabhu, Radhakrishna; Kailasnath, M. (Elsevier http://dx.doi.org/10.1016/j.jlumin.2015.09.002, 2016-01)
    PETER, J., KUMAR, M., ANANAD, V. R., SALEEM, R., SEBASTIAN, A., RADHAKRISHNAN, P., NAMPOORI, V. P. N., VALLABHAN, C. P. G., PRABHU, R., and KAILASNATH, M., 2016. Solvent effects on lasing characteristics for Rh B laser dye. Journal of Luminescence, Vol. 169 (A), pp. 227-232.
    We demonstrate pulsed, photopumped multimode laser emission in the visible spectral range from rhodamine B dye dissolved in various solvents. The laser emission is characterized by a well-defined, low threshold pump power ...
  • Study on the structural, morphological and optical properties of RF-sputtered dysprosium-doped barium tungstate thin films. 

    Hridya, S.; Kavitha, V. S.; Chalana, S. R.; Reshmi Krishnan, R.; Sreeja Sreedharan, R.; Suresh, S.; Nampoori, V. P. N.; Sankararaman, S.; Prabhu, Radhakrishna; Pillai, V. P. Mahadevan (Springer https://doi.org/10.1007/s11837-017-2360-4, 2017-04-27)
    HRIDYA, S., KAVITHA, V.S., CHALANA, S.R., RESHMI KRISHNAN, R., SREEJA SREEDHARAN, R., SURESH, S., NAMPOORI, V.P.N., SANKARARAMAN, S., PRABHU, R. and MAHADEVAN PILLAI, V.P. 2017. Study on the structural, morphological and optical properties of RF-sputtered dysprosium-doped barium tungstate thin films. Journal of the minerals, metals and materials society [online], Online First. Available from: https://doi.org/10.1007/s11837-017-2360-4
    Barium tungstate films with different Dy3+ doping concentrations, namely 0 wt.%, 1 wt.%, 3 wt.% and 5 wt.%, are deposited on cleaned quartz substrate by radio frequency magnetron sputtering technique and the prepared films ...
  • Ultrasensitive graphene coated SPR sensor for biosensing applications. 

    Bhavsar, Kaushalkumar; Prabhu, Radhakrishna; Pollard, P. (SPIE https://doi.org/10.1117/12.2179051, 2015-05-05)
    BHAVSAR, K., PRABHU, R. and POLLARD, P. 2015. Ultrasensitive graphene coated SPR sensor for biosensing applications. In Baldini, F., Homola, J and Lieberman, R.A. (eds.) Proceedings of SPIE optical sensors 2015 conference, 9506, 13-16 April 2015, Prague, Czech Republic. Bellingham, WA: SPIE [online]. Available from: https://doi.org/10.1117/12.2179051
    Surface plasmon resonance (SPR) is a rapid and sensitive technique used for probing the biomolecular interactions in real time. Several new approaches have been suggested to improve the sensitivity of SPR sensors over the ...