All Outputs (103)

Photocatalytic degradation of eleven microcystin variants and nodularin by TiO2 coated glass microspheres. (2015)
Journal Article
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 [online], 300, pages 347-353. Available from: https://doi.org/10.1016/j.jhazmat.2015.07.016

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 toxins. Advanced oxidation proce... Read More about Photocatalytic degradation of eleven microcystin variants and nodularin by TiO2 coated glass microspheres..

Pharmaceutical electrochemistry: the electrochemical detection of aspirin utilising screen printed graphene electrodes as sensors platforms. (2015)
Journal Article
KRUANETR, S., PRABHU, R., POLLARD, P. and FERNANDEZ, C. 2015. Pharmaceutical electrochemistry: the electrochemical detection of aspirin utilising screen printed graphene electrodes as sensors platforms. Surface engineering and applied electrochemistry [online], 51(3), pages 283-289. Available from: https://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 Printed Electrodes without... Read More about Pharmaceutical electrochemistry: the electrochemical detection of aspirin utilising screen printed graphene electrodes as sensors platforms..

LED-controlled tuning of ZnO nanowires' wettability for biosensing applications. (2015)
Journal Article
BHAVSAR, K., ROSS, D., PRABHU, R. and POLLARD, P. 2014. LED-controlled tuning of ZnO nanowires' wettability for biosensing applications. Nano reviews [online], 6, Article 26711. Available from:https://doi.org/10.3402/nano.v6.26711

Background: Wettability is an important property of solid materials which can be controlled by surface energy. Dynamic control over the surface wettability is of great importance for biosensing applications. Zinc oxide (ZnO) is a biocompatible materi... Read More about LED-controlled tuning of ZnO nanowires' wettability for biosensing applications..

Highly textured and transparent RF sputtered Eu2O3 doped ZnO films. (2015)
Journal Article
SREEDHARAN, R. S., GANESAN, V., SUDARSANAKUMAR, C. P., BHAVSAR, K., PRAHBU, R. and PILLAI, V.P.P.M., 2015. Highly textured and transparent RF sputtered Eu2O3 doped ZnO films. Nano reviews [online], 6, Article 26759. Available from: https://doi.org/10.3402/nano.v6.26759

Background: Zinc oxide (ZnO) is a wide, direct band gap II-VI oxide semiconductor. ZnO has large exciton binding energy at room temperature, and it is a good host material for obtaining visible and infrared emission of various rare-earth ions. Method... Read More about Highly textured and transparent RF sputtered Eu2O3 doped ZnO films..

Angular dependent light emission from planar waveguides. (2015)
Journal Article
PETER, J., PRABHU, R., RADHAKRISHNAN, P., VALLABHAN, C.P.G., NAMPOORI, V.P.N. and KAILASNATH, M. 2015. Angular dependent light emission from planar waveguides. Journal of applied physics, 117(1), Article 015301. Available from: https://doi.org/10.1063/1.4905011

We have investigated the angular dependence of amplified spontaneous emission (ASE) and laser emission from an asymmetric and free-standing polymer thin films doped with rhodamine 6G, which is transversely pumped by a pulsed Nd:YAG laser. A semi-leak... Read More about Angular dependent light emission from planar waveguides..

Highly transparent and luminescent nanostructured Eu203 doped ZnO films. (2014)
Journal Article
SREEDHARAN, R.S., GANASAN, V., SUDARSANAKUMAR, C., PRABHU, R. and PILLAI, V.P.M., 2014. Highly transparent and luminescent nanostructured Eu203 doped ZnO films. IOP conference series: materials science and engineering [online], 64, Article 012027. Available from: https://doi.org/10.1088/1757-899X/64/1/012027

Zinc oxide is a wide, direct band gap II-VI oxide semiconductor. Pure and Eu-doped ZnO films are prepared by RF Magnetron sputtering at different doping concentrations (0.5, 1, 3 and 5 wt %). The films are annealed at 500 0C in air for two hours. The... Read More about Highly transparent and luminescent nanostructured Eu203 doped ZnO films..

Investigations on surface wettability of ZnO nanowires using UV LEDs for biosensing applications. (2014)
Journal Article
BHAVSAR, K., PRABHU, R. and POLLARD, P. 2014. Investigations on surface wettability of ZnO nanowires using UV LEDs for biosensing applications. IOP conference series: materials science and engineering [online], 64, Article 012033. Available from: https://doi.org/10.1088/1757-899X/64/1/012033

ZnO is a biocompatible material suitable for biosensors and microfluidic devices. Nanowires of ZnO tend to show hydrophobic nature which decelerates the adhesion/adsorption of biomolecules on the surface. This paper discusses the investigations on tu... Read More about Investigations on surface wettability of ZnO nanowires using UV LEDs for biosensing applications..

Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene. (2014)
Journal Article
KRUANETR, S., POLLARD, P., FERNANDEZ, C. and PRABHU, R. 2014. Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene. International journal of electrochemical science [online], 9(10), pages 5699-5711. Available from: https://doi.org/10.1016/S1452-3981(23)08199-3

We present in this manuscript for the first time the electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolitic graphite electrode (EPPGE) modified with graphene. The electroche... Read More about Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene..

Photocatalytic destruction of volatile organic compounds from the oil and gas industry. (2014)
Thesis
TOKODE, O. 2014. Photocatalytic destruction of volatile organic compounds from the oil and gas industry. Robert Gordon University, PhD thesis.

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 applications in a number of... Read More about Photocatalytic destruction of volatile organic compounds from the oil and gas industry..

Mathematical modelling of quantum yield enhancements of methyl orange photooxidation in aqueous TiO2 suspensions under controlled periodic UV LED illumination. (2014)
Journal Article
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: https://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 the degradation reaction... Read More about Mathematical modelling of quantum yield enhancements of methyl orange photooxidation in aqueous TiO2 suspensions under controlled periodic UV LED illumination..

The effect of pH on the photonic efficiency of the destruction of methyl orange under controlled periodic illumination with UV-LED sources. (2014)
Journal Article
TOKODE, O., PRABHU, R., LAWTON, L.A. and ROBERTSON, P.K.J. 2014. The effect of pH on the photonic efficiency of the destruction of methyl orange under controlled periodic illumination with UV-LED sources. Chemical engineering journal [online], 246, pages 337-342. Available from: https://doi.org/10.1016/j.cej.2014.03.002

The nature of photon interaction and reaction pH can have significant impacts on semiconductor photocatalysis. This paper describes the effect of pH on the photonic efficiency of photocatalytic reactions in the aqueous phase using TiO2 catalysts. The... Read More about The effect of pH on the photonic efficiency of the destruction of methyl orange under controlled periodic illumination with UV-LED sources..

Investigation of novel methods to remove the cyanotoxin, Cylindrospermopsin, from drinking water. (2013)
Thesis
CHANDU, V.C.P 2013. Investigation of novel methods to remove the cyanotoxin, Cylindrospermopsin, from drinking water. Robert Gordon University, PhD thesis.

The widespread distribution of cyanobacteria and their toxic effects on humans has become a major concern for researchers. Cyanobacteria are a group of oxygenic phototrophic bacteria that exhibit an enormous diversity in shapes and arrangements and o... Read More about Investigation of novel methods to remove the cyanotoxin, Cylindrospermopsin, from drinking water..

Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems. (2012)
Thesis
PESTANA, C.J. 2012. Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems. Robert Gordon University, PhD thesis.

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). Understanding the factors that affect c... Read More about Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems..

Effect of controlled periodic-based illumination on the photonic efficiency of photocatalytic degradation of methyl orange. (2012)
Journal Article
TOKODE, O.I., PRABHU, R., LAWTON, L.A. and ROBERTSON, P.K.J. 2012. Effect of controlled periodic-based illumination on the photonic efficiency of photocatalytic degradation of methyl orange. Journal of catalysis [online], 290, pages 138-142. Available from: https://doi.org/10.1016/j.jcat.2012.03.011

The use of controlled periodic illumination with UV LEDs for enhancing photonic efficiency of photocatalytic decomposition processes in water has been investigated using methyl orange as a model compound. The impact of the length of light and dark ti... Read More about Effect of controlled periodic-based illumination on the photonic efficiency of photocatalytic degradation of methyl orange..

Development of a ring cavity-based fibre optic sensor for MR-compatible medical sensing applications.
Presentation / Conference Contribution
BHAVSAR, K., VISWAMBARAN, V., JOHNY, J., KAILASNATH, M., MELZER, A. and PRABHU, R. 2019. Development of a ring cavity-based fibre optic sensor for MR-compatible medical sensing applications. IOP conference series: materials science and engineering [online], 499: proceedings of the 4th International conference on structural nano composites (NANOSTRUC 2018), 23-24 May 2018, Berlin, Germany, article number 012013. Available from: https://doi.org/10.1088/1757-899x/499/1/012013

Advances in robotic systems and rapid developments in minimally invasive surgery (MIS) have made their use possible in the operating room due to many distinct advantages offered by MIS over conventional surgical procedures. The constant increase of m... Read More about Development of a ring cavity-based fibre optic sensor for MR-compatible medical sensing applications..

Effect of silver incorporation on the structural and morphological characteristics of RF sputtered indium oxide films.
Presentation / Conference Contribution
SILPA SATHEESH, B., KAVITHA, V.S., KRISHNAN, R., CHALANA, S.R., SURESH, S., PRABHU, R. and MAHADEVAN PILLAI, V.P. 2019. Effect of silver incorporation on the structural and morphological characteristics of RF sputtered indium oxide films. IOP conference series: materials science and engineering [online], 499: proceedings of the 4th International conference on structural nano composites (NANOSTRUC 2018), 23-24 May 2018, Berlin, Germany, article number 012001. Available from: https://doi.org/10.1088/1757-899x/499/1/012001

Radio frequency (RF) magnetron sputtered silver incorporated indium oxide thin films were prepared and their structural and morphological properties were studied using micro- Raman spectroscopy, Atomic Force Microscopy (AFM), Field Emission Scanning... Read More about Effect of silver incorporation on the structural and morphological characteristics of RF sputtered indium oxide films..

Investigations on sensitivity enhancement of SPR biosensor using tunable wavelength and graphene layers.
Presentation / Conference Contribution
BHAVSAR, K. and PRABHU, R. 2019. Investigations on sensitivity enhancement of SPR biosensor using tunable wavelength and graphene layers. IOP conference series: materials science and engineering [online], 499: proceedings of the 4th International conference on structural nano composites (NANOSTRUC 2018), 23-24 May 2018, Berlin, Germany, article number 012008. Available from: https://doi.org/10.1088/1757-899x/499/1/012008

Surface plasmon resonance (SPR) is a well-known, 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 last two decades... Read More about Investigations on sensitivity enhancement of SPR biosensor using tunable wavelength and graphene layers..

Investigation of positioning of FBG sensors for smart monitoring of oil and gas subsea structures.
Presentation / Conference Contribution
JOHNY, J., PRABHU, R., FUNG, W.K. and WATSON, J. 2016. Investigation of positioning of FBG sensors for smart monitoring of oil and gas subsea structures. In Proceedings of the 2016 Marine Technology Society/Institute of Electrical and Electronics Engineers (MTS/IEEE) OCEANS conference: our future is with oceans, 10-13 April 2016, Shanghai, China. Piscataway: IEEE [online], paper ID 7485662. Available from: https://dx.doi.org/10.1109/OCEANSAP.2016.7485662

Condition monitoring of offshore structures is an indispensable task in the oil and gas industry. Fibre Bragg Grating (FBG) is the key technology used down-hole in order to sense different physical parameters such as strain, vibration, etc. This pape... Read More about Investigation of positioning of FBG sensors for smart monitoring of oil and gas subsea structures..

Rheological behaviour of single-phase non-Newtonian polymer solution in complex pore geometry: a simulation approach.
Presentation / Conference Contribution
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], article ID 18685. 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 factors during polymer-rock... Read More about Rheological behaviour of single-phase non-Newtonian polymer solution in complex pore geometry: a simulation approach..

Holographic interferometry for security and forensic applications.
Presentation / Conference Contribution
AMBADIYIL, S., SREELEKSHMI, R.C., PILLAI, V.P.M. and PRABHU, R. 2016. Holographic interferometry for security and forensic applications. In Burgess, D., Owen, G., Bouma, H., Carlysle-Davies, F., Stokes, R.J. and Yitzhaky, Y. (eds.) Proceedings of the 12th Optics and photonics for counterterrorims, crime fighting and defence conference 2016: co-located with Society of Photographic Instrumentation Engineers (SPIE) security and defence conference, 26-27 September 2016, Edinburgh, UK. Proceedings of SPIE, 9995. Bellingham: SPIE [online], article ID 999502. Available from: https://doi.org/10.1117/12.2242153

Security holograms having unique 3D images are one of the tools for enhancing the security for product and personnel authentication and anti-counterfeiting. Apart from the high technology that is required, the uniqueness of a 3D object presents a sig... Read More about Holographic interferometry for security and forensic applications..