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Rapid uptake and slow depuration: health risks following cyanotoxin accumulation in mussels? (2020)
Journal Article
CAMACHO-MUÑOZ, D., WAACK, J., TURNER, A.D., LEWIS, A.M., LAWTON, L.A. and EDWARDS, C. 2021. Rapid uptake and slow depuration: health risks following cyanotoxin accumulation in mussels? Environmental pollution [online], 271, article ID 116400. Available from: https://doi.org/10.1016/j.envpol.2020.116400

Freshwater cyanobacteria produce highly toxic secondary metabolites, which can be transported downstream by rivers and waterways into the sea. Estuarine and coastal aquaculture sites exposed to toxic cyanobacteria raise concerns that shellfish may ac... Read More about Rapid uptake and slow depuration: health risks following cyanotoxin accumulation in mussels?.

Anatoxin-a degradation by using titanium dioxide. (2020)
Journal Article
KAMINSKI, A., EDWARDS, C., CHRAPUSTA-SREBRNY, E. and LAWTON, L.A. 2021. Anatoxin-a degradation by using titanium dioxide. Science of the total environment [online], 756, article ID 143590. Available from: https://doi.org/10.1016/j.scitotenv.2020.143590

Advanced oxidation processes, such as using titanium dioxide (TiO2) photocatalysis, are being developed to reduce or eliminate the toxicity of treated water. In this study, the removal of purified anatoxin-a (ANTX-a), live Dolichospermum flos-aquae c... Read More about Anatoxin-a degradation by using titanium dioxide..

Oxidative stress in the cyanobacterium microcystis aeruginosa PCC 7813: comparison of different analytical cell stress detection assays. (2020)
Journal Article
MENEZES, I., MAXWELL-MCQUEEN, D., CAPELO-NETO, J., PESTANA, C.J., EDWARDS, C. and LAWTON, L.A. [2020]. Oxidative stress in the cyanobacterium Microcystis aeruginosa PCC 7813: comparison of different analytical cell stress detection assays. Chemosphere [online], In Press. Available from: https://doi.org/10.1016/j.chemosphere.2020.128766

Cyanobacterial blooms are observed when high cell densities occur and are often dangerous to human and animal health due to the presence of cyanotoxins. Conventional drinking water treatment technology struggles to efficiently remove cyanobacterial c... Read More about Oxidative stress in the cyanobacterium microcystis aeruginosa PCC 7813: comparison of different analytical cell stress detection assays..

Graphitic-C3N4 coated floating glass beads for photocatalytic destruction of synthetic and natural organic compounds in water under UV light. (2020)
Journal Article
HUI, J., PESTANA, C.J., CAUX, M., GUNARATNE, H.Q.N., EDWARDS, C., ROBERTSON, P.K.J., LAWTON, L.A. and IRVINE, J.T.S. 2020. Graphitic-C3N4 coated floating glass beads for photocatalytic destruction of synthetic and natural organic compounds in water under UV light. Journal of photochemistry and photobiology A: chemistry [online], 405, article ID 112935. Available from: https://doi.org/10.1016/j.jphotochem.2020.112935

Many drinking water reservoirs can contain organic pollutants such as artificial synthesized dye and drugs. On the other hand, some naturally occurring microorganisms such as cyanobacteria, are capable of producing toxic secondary metabolites (cyanot... Read More about Graphitic-C3N4 coated floating glass beads for photocatalytic destruction of synthetic and natural organic compounds in water under UV light..

Degradation of microcystin-LR and cylindrospermopsin by continuous flow UV-A photocatalysis over immobilised TiO2. (2020)
Journal Article
CAMACHO-MUÑOZ, D., FERVERS, A.-S., PESTANA, C.J., EDWARDS, C. and LAWTON, L.A. 2020. Degradation of microcystin-LR and cylindrospermopsin by continuous flow UV-A photocatalysis over immobilised TiO2. Journal of environmental management [online], 276, article ID 111368. Available from: https://doi.org/10.1016/j.jenvman.2020.111368

The increasing presence of freshwater toxins have brought new challenges to preserve water quality due to their potential impact on the environment and human health. Two commonly occurring cyanotoxins, microcystin-LR and cylindrospermopsin, with diff... Read More about Degradation of microcystin-LR and cylindrospermopsin by continuous flow UV-A photocatalysis over immobilised TiO2..

Photocatalytic removal of the cyanobacterium Microcystis aeruginosa PCC7813 and four microcystins by TiO2 coated porous glass beads with UV-LED irradiation. (2020)
Journal Article
PESTANA, C.J., PORTELA NORONHA, J., HUI, J., EDWARDS, C., GUNARATNE, H.Q.N., IRVINE, J.T.S., ROBERTSON, P.K.J., CAPELO-NETO, J. and LAWTON, L.A. 2020. Photocatalytic removal of the cyanobacterium Microcystis aeruginosa PCC7813 and four microcystins by TiO2 coated porous glass beads with UV-LED irradiation. Science of the total environment [online], 745, article number 141154. Available from: https://doi.org/10.1016/j.scitotenv.2020.141154

Cyanobacteria and their toxic secondary metabolites are a challenge in water treatment due to increased biomass and dissolved metabolites in the raw water. Retrofitting existing water treatment infrastructure is prohibitively expensive or unfeasible,... Read More about Photocatalytic removal of the cyanobacterium Microcystis aeruginosa PCC7813 and four microcystins by TiO2 coated porous glass beads with UV-LED irradiation..

Exploitation of underused Streptomyces through a combined metabolomics-genomics workflow to enhance natural product diversity. (2020)
Thesis
BURNS, J. 2020. Exploitation of underused streptomyces through a combined metabolomics-genomics workflow to enhance natural product diversity. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

The genus Streptomyces is the source of approximately two-thirds of all clinically-used antibiotics. Despite being the source of so many specialised metabolites, genomic analysis indicates that most Streptomyces strains have the potential to produce... Read More about Exploitation of underused Streptomyces through a combined metabolomics-genomics workflow to enhance natural product diversity..

Degradation of okadaic acid in seawater by UV/TiO2 photocatalysis: proof of concept. (2020)
Journal Article
CAMACHO-MUÑOZ, D., LAWTON, L.A. and EDWARDS, C. 2020. Degradation of okadaic acid in seawater by UV/TiO2 photocatalysis: proof of concept. Science of the total environment [online], 733, article ID 139346. Available from: https://doi.org/10.1016/j.scitotenv.2020.139346

The consumption of contaminated shellfish with marine toxins causes adverse socioeconomical, environmental and health impacts. The marine toxin okadaic acid (OA) provokes diarrhetic shellfish poisoning (DSP) syndrome characterized by severe gastroint... Read More about Degradation of okadaic acid in seawater by UV/TiO2 photocatalysis: proof of concept..

Cross talk: two way allelopathic interactions between toxic Microcystis and Daphnia. (2020)
Journal Article
BOJADZIJA SAVIC, G., BORMANS, M., EDWARDS, C., LAWTON, L., BRIAND, E. and WIEGAND, C. 2020. Cross talk: two way allelopathic interactions between toxic Microcystis and Daphnia. Harmful algae [online], 94, article ID 101803. Available from: https://doi.org/10.1016/j.hal.2020.101803

Due to eutrophication, freshwater ecosystems frequently experience cyanobacterial blooms, many of which produce bioactive metabolites that can affect vertebrates and invertebrates life traits. Zooplankton are able to develop tolerance as a physiologi... Read More about Cross talk: two way allelopathic interactions between toxic Microcystis and Daphnia..

Internal loading potential of phosphorus in reservoirs along a semiarid watershed. (2020)
Journal Article
MOURA, D.S., ALMEIDA, A.S.O.D., PESTANA, C.J., GIRÃO, L.G., and CAPELO-NETO, J. 2020. Internal loading potential of phosphorus in reservoirs along a semiarid watershed. Revista Brasileira de recursos hídricos [online], 25, article ID e13. Available from: https://doi.org/10.1590/2318-0331.252020180023

All rights reserved. Sediments are important to nutrient dynamics, especially due to phosphorus internal loading. Several studies have observed that internal loading could prevent water quality from improving in lakes, even when external phosphorus l... Read More about Internal loading potential of phosphorus in reservoirs along a semiarid watershed..

'All in one' photo-reactor pod containing TiO2 coated glass beads and LEDs for continuous photocatalytic destruction of cyanotoxins in water. (2020)
Journal Article
GUNARATNE, H.Q.N., PESTANA, C.J., SKILLEN, N., HUI, J., SARAVANAN, S., EDWARDS, C., IRVINE, J.T.S., ROBERTSON, P.K.J. and LAWTON, L.A. 2020. ‘All in one’ photo-reactor pod containing TiO2 coated glass beads and LEDs for continuous photocatalytic destruction of cyanotoxins in water. Environmental science: water research and technology [online], 6(4), pages 945-950. Available from: https://doi.org/10.1039/c9ew00711c

Blooms of blue-green algae (cyanobacteria) in water reservoirs frequently produce highly toxic secondary metabolites including microcystins which have resulted in both human and animal fatalities. To tackle this global problem, we present here a viab... Read More about 'All in one' photo-reactor pod containing TiO2 coated glass beads and LEDs for continuous photocatalytic destruction of cyanotoxins in water..

Phosphate and nitrate supplementations to evaluate the effect on cell biomass, intra and extracellular nodularin and nodulopeptin 901 produced by the cyanobacterium Nodularia spumigena KAC 66. (2019)
Journal Article
HAMEED, S., LAWTON, L.A. and EDWARDS, C. 2020. Phosphate and nitrate supplementations to evaluate the effect on cell biomass, intra and extracellular nodularin and nodulopeptin 901 produced by the cyanobacterium Nodularia spumigena KAC 66. Journal of applied phycology [online], 32(2), pages 937-950. Available from: https://doi.org/10.1007/s10811-019-02008-z

Blooms of the cyanobacterium Nodularia spumigena occur regularly in the Baltic Sea typically producing a wide range of bioactive peptides including the hepatotoxin nodularin (NOD), spumigins, anabaenopeptins and nodulopeptins (molecular weights: 917,... Read More about Phosphate and nitrate supplementations to evaluate the effect on cell biomass, intra and extracellular nodularin and nodulopeptin 901 produced by the cyanobacterium Nodularia spumigena KAC 66..

Modeling phosphorus exchange between bottom sediment and water in tropical semiarid reservoirs. (2019)
Journal Article
MOURA, D.S., LIMA NETO, I.E., CLEMENTE, A., OLIVEIRA, S., PESTANA, C.J., APARECIDA DE MELO, M. and CAPELO-NETO, J. 2020. Modeling phosphorus exchange between bottom sediment and water in tropical semiarid reservoirs. Chemosphere [online], 246, article ID 125686. Available from: https://doi.org/10.1016/j.chemosphere.2019.125686

This study investigated phosphorus (P) dynamics in the sediment-water interface of three distinct reservoirs located in a tropical semiarid region. Sequential chemical fractioning of the P content in the sediment and controlled experiments of the sed... Read More about Modeling phosphorus exchange between bottom sediment and water in tropical semiarid reservoirs..

Removal of microcystins from a waste stabilisation lagoon: evaluation of a packed-bed continuous flow TiO2 reactor. (2019)
Journal Article
PESTANA, C.J., HOBSON, P., ROBERTSON, P.K.J., LAWTON, L.A. and NEWCOMBE, G. 2020. Removal of microcystins from a waste stabilisation lagoon: evaluation of a packed-bed continuous flow TiO2 reactor. Chemosphere [online], 245, article number 125575. Available from: https://doi.org/10.1016/j.chemosphere.2019.125575

Photocatalysis has been shown to successfully remove microcystins (MC) in laboratory experiments. Most research to date has been performed under ideal conditions in pure or ultrapure water. In this investigation the efficiency of photocatalysis using... Read More about Removal of microcystins from a waste stabilisation lagoon: evaluation of a packed-bed continuous flow TiO2 reactor..

Daphnia magna exudates impact physiological and metabolic changes in microcystis aeruginosa. (2019)
Journal Article
SAVIC, G.B., EDWARDS, C., BRIAND, E., LAWTON, L., WIEGAND, C. and BORMANS, M. 2019. Daphnia magna exudates impact physiological and metabolic changes in microcystis aeruginosa. Toxins [online], 11(7), article number 421. Available from: https://doi.org/10.3390/toxins11070421

While the intracellular function of many toxic and bioactive cyanobacterial metabolites is not yet known, microcystins have been suggested to have a protective role in the cyanobacterial metabolism, giving advantage to toxic over nontoxic strains und... Read More about Daphnia magna exudates impact physiological and metabolic changes in microcystis aeruginosa..

Using cellulose polymorphs for enhanced hydrogen production from photocatalytic reforming. (2019)
Journal Article
CHANG, C., SKILLEN, N., NAGARAJAN, S., RALPHS, K., IRVINE, J.T.S., LAWTON, L. and ROBERTSON, P.K.J. 2019. Using cellulose polymorphs for enhanced hydrogen production from photocatalytic reforming. Sustainable energy and fuels [online], 3(8), pages 1971-1975. Available from: https://doi.org/10.1039/c9se00377k

Efficient energy production and waste valorisation are the most challenging fields in photocatalysis. Reported here is enhanced hydrogen production from cellulose, achieved through the conversion of cellulose I to II via a simple pretreatment step.

Exploring the potential resource recovery from pot ale utilising microalgae and novel LED photobioreactors. (2019)
Thesis
MCNERNEY, C.C. 2019. Exploring the potential resource recovery from pot ale utilising microalgae and novel LED photobioreactors. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Pot ale is a protein-rich, high-carbon and acidic (pH 3.5) by-product of the whisky industry. With 4.9 million tonnes of pot ale being produced per annum in Scotland alone, it presents a difficult disposal challenge for the industry. Pot ale has high... Read More about Exploring the potential resource recovery from pot ale utilising microalgae and novel LED photobioreactors..

The effect of water treatment unit processes on cyanobacterial trichome integrity. (2018)
Journal Article
PESTANA, C.J., CAPELO-NETO, J., LAWTON, L., OLIVEIRA, S., CARLOTO, I. and LINHARES, H.P. 2019. The effect of water treatment unit processes on cyanobacterial trichome integrity. Science of the total environment [online], 659, pages 1403-1414. Available from: https://doi.org/10.1016/j.scitotenv.2018.12.337

Many toxic and/or noxious cyanobacteria appear in nature with a filamentous, stacked cell arrangement called trichomes. Although water treatment can be optimized to keep cyanobacterial cells intact and to avoid the release of toxic and/or noxious com... Read More about The effect of water treatment unit processes on cyanobacterial trichome integrity..

Consumer perception of water quality during an off-flavor event in Fortaleza-Brazil. (2018)
Journal Article
PESTANA, C.J., CAPELO NETO, J., BARROS, M.U.G., MENEZES, I., GÓIS, A. and SANTOS, G. 2019. Consumer perception of water quality during an off-flavor event in Fortaleza-Brazil. Journal of water supply: research and technology-Aqua [online], 68(1), pages 63-73. Available from: https://doi.org/10.2166/aqua.2018.077

During a taste and odor episode (2-methylisoborneol) in a reservoir that supplies the Fortaleza Metropolitan Region, Brazil, two surveys were conducted to determine tap water usage behavior as well as the sensory sensitivity towards off-flavors of pa... Read More about Consumer perception of water quality during an off-flavor event in Fortaleza-Brazil..

A European multi lake survey dataset of environmental variables, phytoplankton pigments and cyanotoxins. (2018)
Journal Article
MANTZOUKI, E., CAMPBELL, J., VAN LOON, E.E., VISSER, P. and IBELINGS, B. 2018. A European multi lake survey dataset of environmental variables, phytoplankton pigments and cyanotoxins. Scientific data [online], 5, article ID 180226. Available from: https://doi.org/10.1038/sdata.2018.226

Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers of numerous ecosystem services, face mult... Read More about A European multi lake survey dataset of environmental variables, phytoplankton pigments and cyanotoxins..