Now showing items 3-22 of 30

  • A comparison of the effectiveness of TiO2 photocatalysis and UVA photolysis for the destruction of three pathogenic micro-organisms. 

    Robertson, Jeanette M. C.; Robertson, Peter K. J.; Lawton, Linda A. (Elsevier http://dx.doi.org/10.1016/j.jphotochem.2005.04.033, 2005-09)
    ROBERTSON, J. M. C., ROBERTSON, P. K. J. and LAWTON, L. A., 2005. A comparison of the effectiveness of TiO2 photocatalysis and UVA photolysis for the destruction of three pathogenic micro-organisms. Journal of Photochemistry and Photobiology A: Chemistry, 175 (1), pp. 51-56.
    TiO2 photocatalysis has demonstrated efficacy as a treatment process for water contaminated with chemical pollutants. When exposed to UVA light TiO2 also demonstrates an effective bactericidal activity. The mechanism of ...
  • Degradation of microcystin-LR by aquatic bacteria 

    Ghimire, Buddhi Sagar (The Robert Gordon University School of Pharmacy and Life Sciences, 2007-06)
    Microcystins are cyclic heptapeptide toxins produced by cyanobacteria. They are potentially a threat to human and domestic animals so are of worldwide interest. Microcystin-LR is stable in various environmental conditions. ...
  • The degradation of microcystin-LR using doped visible light absorbing photocatalysts. 

    Graham, Douglas J. L.; Kisch, Horst; Lawton, Linda A.; Robertson, Peter K. J. (Elsevier http://dx.doi.org/10.1016/j.chemosphere.2009.12.003, 2010-02)
    GRAHAM, D., KISCH, H., LAWTON, L. A. and ROBERTSON, P. K. J., 2010. The degradation of microcystin-LR using doped visible light absorbing photocatalysts. Chemosphere, 78 (9), pp. 1182-1185.
    Microcystins are one of the primary hepatotoxic cyanotoxins released from cyanobacteria. The presence of these compounds in water has resulted in the death of both humans and domestic and wild animals. Although microcystins ...
  • The destruction of 2-methylisoborneol and geosmin using titanium dioxide photocatalysis. 

    Lawton, Linda A.; Robertson, Peter K. J.; Robertson, Russell F.; Bruce, Fiona G. (Elsevier http://www.elsevier.com/wps/find/journaldescription.cws_home/523066/description#description, 2003-08-08)
    LAWTON, L., ROBERTSON, P., ROBERTSON, R. and BRUCE, F., 2003. The destruction of 2-methylisoborneol and geosmin using titanium dioxide photocatalysis. Applied Catalysis B. Environmental. Volume 44 (1) pp. 9-13
    Geosmin (GSM) and 2-methylisoborneol (MIB) are semi-volatile compounds produced by cyanobacteria in surface waters. These compounds present problems to the drinking water industry and in aquaculture because they can taint ...
  • Destruction of cyanobacterial toxins by semiconductor photocatalysis. 

    Robertson, Peter K. J.; Lawton, Linda A.; Munch, Burkhard; Rouzade, Julien (Royal Society of Chemistry http://www.rsc.org/Publishing/Journals/CC/Index.asp, 1997)
    ROBERTSON, P., LAWTON, L., MUNCH, B. and ROUZADE, J., 1997. Destruction of cyanobacterial toxins by semiconductor photocatalysis. Chemical Communications. Issue 4, pp. 393-394
    The rapid destruction of microcystin, a cyanobacterial toxin, using a titanium dioxide photocatalyst is observed; the process is extremely efficient with high concentrations of toxin completely undetectable within 10–40 ...
  • Detection, analysis, and photocatalytic destruction of the freshwater taint compound geosmin 

    Bellu, Edmund (The Robert Gordon University Faculty of Health and Social Care. School of Life Sciences., 2007-04)
    A significant issue affecting the aquaculture and water industries is the presence of off-flavour compounds in water, which cause problems by imparting an undesirable earthy/musty flavour and smell to water and fish. ...
  • Evaluation of methodology for detection and quantification of coliform bacteria and their survival in soil and water 

    Bannister, Elaine (The Robert Gordon University School of Pharmacy and Life Sciences, 2010-02)
    In Aberdeenshire, approximately 25,000 people rely on potable water from private water supplies. Many of these supplies are of questionable quality with regards to microbiological contamination, which is often due to a ...
  • Freshwater bacterial diversity, functions and stability. 

    Giaramida, Luca (Robert Gordon University School of Pharmacy and Life Sciences., 2013-05)
    Biodiversity is declining worldwide with detrimental effects on ecosystems functions and services that it sustains. The relationship between biodiversity and freshwater purification remains unclear. Freshwater purification ...
  • An investigation into factors influencing the production and degradation of microcystins. 

    Graham, Douglas J. L. (The Robert Gordon University School of Pharmacy and Life Sciences, 2007-06)
    Microcystins (MCYST) potently inhibit protein phosphatases and these cyclic heptapeptides are powerful hepatotoxins. They are known to be secondary metabolites produced by several species of cyanobacteria. The release ...
  • An investigation into the biodegradation of peptide cyanotoxins (microcystins and nodularin) by novel gram-positive bacteria. 

    Welgamage Don, Aakash Channa Dharshan (Robert Gordon University School of Pharmacy and Life Sciences, 2012-02)
    Cyanobacterial secondary metabolites, microcystins (MC) and nodularin (NOD) have become common contaminants in most aquatic ecosystems over recent years presenting a hazard to animal and human health. Unfortunately, ...
  • Investigation of novel methods to remove the cyanotoxin, Cylindrospermopsin, from drinking water. 

    Chandu, Vijith Cholakkal Parambil (Robert Gordon University School of Pharmacy and Life Sciences, 2013-04)
    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 ...
  • Investigation of the production and isolation of bioactive compounds from cyanobacteria. 

    Hameed, Shaista (Robert Gordon University School of Pharmacy and Life Sciences., 2013-05)
    Due to heavy nutrient load and adverse climate change the occurrence of toxic cyanobacterial blooms have significantly increased during the last decades. Nodularia spumigena is one of the dominant toxic cyanobacteria which ...
  • Lack of functional redundancy in the relationship between microbial diversity and ecosystem functioning. 

    Delgado-Baquerizo, Manuel; Giaramida, Luca; Reich, Peter B.; Khachane, Amit N.; Hamonts, Kelly; Edwards, Christine; Lawton, Linda A.; Singh, Brajesh (Wiley https://dx.doi.org/10.1111/1365-2745.12585, 2016-04-07)
    DELGADO-BAQUERIZO, M., GIARAMIDA, L., REICH, P.B., KHACHANE, A.N., HAMONTS, K., EDWARDS, C., LAWTON, L.A. and SINGH, B.K. 2016. Lack of functional redundancy in the relationship between microbial diversity and ecosystem functioning. Journal of ecology [online], 104(4), pages 936-946. Available from: https://dx.doi.org/10.1111/1365-2745.12585
    1. Biodiversity is declining worldwide with detrimental effects on ecosystems. However, we lack a quantitative understanding of the shape of the relationship between microbial biodiversity and ecosystem function (BEF). ...
  • Mechanistic and toxicity studies of the photocatalytic oxidation of microcystin-LR. 

    Liu, Iain; Lawton, Linda A.; Cornish, Benjamin J. P. A.; Robertson, Peter K. J. (Elsevier http://www.elsevier.com/wps/find/journaldescription.cws_home/504091/description#description, 2002-05-31)
    LIU, I., LAWTON, L., CORNISH, B. and ROBERTSON, P., 2002. Mechanistic and toxicity studies of the photocatalytic oxidation of microcystin-LR. Journal of Photochemistry and Photobiology A. Chemistry. Volume 148 (1-3), pp. 349-354
    Cyanobacterial toxins present in drinking water sources pose a considerable threat to human health. Conventional water treatment systems have proven unreliable for the removal of these toxins and hence new techniques have ...
  • 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). ...
  • A new generation of biocides for control of crustacea in fish farms. 

    Robertson, Peter K. J.; Black, Kenneth D.; Adams, Morgan; Willis, Kate; Buchan, Fraser; Orr, Heather; Lawton, Linda A.; McCullagh, Cathy (Elsevier http://dx.doi.org/10.1016/j.jphotobiol.2008.12.009, 2009-04)
    ROBERTSON, P. K. J., BLACK, K. D., ADAMS, M., WILLIS, K., BUCHAN, F., ORR, H., LAWTON, L. and McCULLAGH, C., 2009. A new generation of biocides for control of crustacea in fish farms. Journal of Photochemistry and Photobiology B: Biology, 95 (1), pp. 58-63.
    Farming of salmon has become a significant industry in many countries over the past two decades. A major challenge facing this sector is infestation of the salmon by sea lice. The main way of treating salmon for such ...
  • Optimisation of high value metabolite production from benthic marine dinoflagellate Prorocentrum lima. 

    Praptiwi, Radisti Ayu (Robert Gordon University School of Pharmacy and Life Sciences, 2014-03)
    Toxins produced by harmful algal blooms (HABs) are known to pose contamination risks to seafood products (e.g. fish and shellfish) consumed by human. In order to control contamination risks, monitoring regimes have to ...
  • Overcoming the seasonal variations in fitness of the amphipod Corophium Volutator as an environmental toxicology test species using laboratory cultured specimens. 

    McGee, Donall (Robert Gordon University School of Pharmacy and Life Sciences, 2014-10)
    The marine amphipod Corophium volutator is an important source of food for many fish and wading birds, making it an important species in an estuarine environment and a relevant toxicological test species. Historical data ...
  • The photocatalytic decomposition of microsystin-LR using selected titanium dioxide materials. 

    Liu, Iain; Lawton, Linda A.; Bahnemann, Detlef W.; Liu, Lei; Proft, Bernd; Robertson, Peter K. J. (Elsevier http://dx.doi.org/10.1016/j.chemosphere.2009.02.067, 2009-07)
    LIU, I., LAWTON, L. A., BAHNEMANN, D. W., LIU, L., PROFT, B. and ROBERTSON, P. K. J., 2009. The photocatalytic decomposition of microsystin-LR using selected titanium dioxide materials. Chemosphere, 76 (4), pp. 549-553.
    Microcystins (cyclic heptapeptides) produced by a number of freshwater cyanobacteria are a potential cause for concern in potable water supplies due to their acute and chronic toxicity. TiO2 photocatalysis is a promising ...
  • 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 ...