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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.

Trends in crop reference evapotranspiration and climatological variables across Ceará state: Brazil. (2019)
Journal Article
PAULINO, V.E.N., STUDART, T.M.C., CAMPOS, J.N.B., PESTANA, C.J., LUNA, R.M., ALVES, J.M.B. 2019. Trends in crop reference evapotranspiration and climatological variables across Ceará state: Brazil. Revista Brasileira de meteorologia [online], 34(1), pages 79-88. Available from: https://doi.org/10.1590/0102-7786334017

Irrigation has a substantial share in total world water demand. At the global level, the withdrawal ratio for agriculture is 69 percent. Irrigation is necessary to compensate evapotranspiration (ET) deficit due to insufficient precipitation. Knowing... Read More about Trends in crop reference evapotranspiration and climatological variables across Ceará state: Brazil..

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..

Enhancing photocatalytic degradation of the cyanotoxin microcystin-LR with the addition of sulfate-radical generating oxidants. (2018)
Journal Article
ANTONIOU, M.G., BORAEI, I., SOLAKIDOU, M., DELIGIANNAKIS, Y., ABHISHEK, M., LAWTON, L.A. and EDWARDS, C. 2018. Enhancing photocatalytic degradation of the cyanotoxin microcystin-LR with the addition of sulfate-radical generating oxidants. Journal of hazardous materials [online], 360, pages 461-470. Available from: https://doi.org/10.1016/j.jhazmat.2018.07.111

This study investigated the coupling of sulfate radical generating oxidants, (persulfate, PS and peroxymonosulfate, PMS) with TiO2 photocatalysis for the degradation of microcystin-LR (MC-LR). Treatment efficiency was evaluated by estimating the elec... Read More about Enhancing photocatalytic degradation of the cyanotoxin microcystin-LR with the addition of sulfate-radical generating oxidants..

Cyanopeptolins with trypsin and chymotrypsin inhibitory activity from the cyanobacterium nostoc edaphicum CCNP1411. (2018)
Journal Article
MAZUR-MARZEC, H., FIDOR, A., CEGLOWSKA, M., WIECZERZAK, E., KROPIDLOWSKA, M., GOUA, M., MACASKILL, J. and EDWARDS, C. 2018. Cyanopeptolins with trypsin and chymotrypsin inhibitory activity from the cyanobacterium nostoc edaphicum CCNP1411. Marine drugs [online], 16(7), article number 220. Available from: https://doi.org/10.3390/md16070220

Cyanopeptolins (CPs) are one of the most frequently occurring cyanobacterial peptides, many of which are inhibitors of serine proteases. Some CP variants are also acutely toxic to aquatic organisms, especially small crustaceans. In this study, thirte... Read More about Cyanopeptolins with trypsin and chymotrypsin inhibitory activity from the cyanobacterium nostoc edaphicum CCNP1411..

Temperature effects explain continental scale distribution of cyanobacterial toxins. (2018)
Journal Article
MANTZOUKI, E., IBELINGS, B.W., FASTNER, J., LÜRLING, M., DE SENERPONT DOMIS, L., TEURLINCX, S. and CHMURA, D. 2018. Temperature effects explain continental scale distribution of cyanobacterial toxins. Toxins [online], 10(4), article number 156. Available from: https://doi.org/10.3390/toxins10040156

Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other c... Read More about Temperature effects explain continental scale distribution of cyanobacterial toxins..

Cell lysis and detoxification of cyanotoxins using a novel combination of microbubble generation and plasma microreactor technology for ozonation. (2018)
Journal Article
PANDHAL, J., SISWANTO, A., KUVSHINOV, D., ZIMMERMAN, W.B., LAWTON, L. and EDWARDS, C. 2018. Cell lysis and detoxification of cyanotoxins using a novel combination of microbubble generation and plasma microreactor technology for ozonation. Frontiers in microbiology [online], 9, article number 678. Available from: https://doi.org/10.3389/fmicb.2018.00678

There has been a steady rise in the global incidences of algal blooms and, worryingly, there is increasing evidence that changes in the global climate are leading to a shift toward cyanobacterial blooms. Many cyanobacterial genera are harmful, produc... Read More about Cell lysis and detoxification of cyanotoxins using a novel combination of microbubble generation and plasma microreactor technology for ozonation..

Development and single-laboratory validation of a UHPLC-MS/MS method for quantitation of microcystins and nodularin in natural water, cyanobacteria, shellfish and algal supplement tablet powders. (2017)
Journal Article
TURNER, A.D., WAACK, J., LEWIS, A., EDWARDS, C. and LAWTON, L. 2018. Development and single-laboratory validation of a UHPLC-MS/MS method for quantitation of microcystins and nodularin in natural water, cyanobacteria, shellfish and algal supplement tablet powders. Journal of chromatography B [online], 1074-1075, pages 111-123. Available from: https://doi.org/10.1016/j.jchromb.2017.12.032

A simple, rapid UHPLC-MS/MS method has been developed and optimised for the quantitation of microcystins and nodularin in wide variety of sample matrices. Microcystin analogues targeted were MC-LR, MC-RR, MC-LA, MC-LY, MC-LF, LC-LW, MC-YR, MC-WR, [As... Read More about Development and single-laboratory validation of a UHPLC-MS/MS method for quantitation of microcystins and nodularin in natural water, cyanobacteria, shellfish and algal supplement tablet powders..

A photocatalytic impeller reactor for gas phase heterogeneous photocatalysis. (2017)
Journal Article
TOKODE, O., PRABHU, R., LAWTON, L.A. and ROBERTSON, P.K.J. 2017. A photocatalytic impeller reactor for gas phase heterogeneous photocatalysis. Journal of environmental chemical engineering [online], 5(4), pages 3942-3948. Available from: https://doi.org/10.1016/j.jece.2017.07.068

A novel photocatalytic reactor based on a stirred tank configuration has been described. This reactor employs the use of photocatalytic impellers to aid the mass transport of gaseous organic compounds during photocatalytic reactions. Experiments invo... Read More about A photocatalytic impeller reactor for gas phase heterogeneous photocatalysis..

Cellulose II as bioethanol feedstock and its advantages over native cellulose. (2017)
Journal Article
NAGARAJAN, S., SKILLEN, N.C., IRVINE, J.T.S, LAWTON, L.A. and ROBERTSON, P.K. 2017. Cellulose II as bioethanol feedstock and its advantages over native cellulose. Renewable and sustainable energy reviews [online], 77, pages 182-192. Available from: https://doi.org/10.1016/j.rser.2017.03.118

Alternative renewable energy must emerge to sustainably meet the energy demands of the present and future. Current alternatives to fossil fuels are electricity from solar, wind and tidal energies and biofuels. Biofuels, especially bioethanol could be... Read More about Cellulose II as bioethanol feedstock and its advantages over native cellulose..

Effects of temperature and salinity on the production of cell biomass, chlorophyll-a and intra- and extracellular nodularins (NOD) and nodulopeptin 901 produced by Nodularia spumigena KAC 66. (2017)
Journal Article
HAMEED, S., LAWTON, L.A., EDWARDS, C., KHAN, A., FAROOQ, U. and KHAN, F.A. 2017. Effects of temperature and salinity on the production of cell biomass, chlorophyll-a and intra- and extracellular nodularins (NOD) and nodulopeptin 901 produced by Nodularia spumigena KAC 66. Journal of applied phycology [online], 29(4), pages 1801-1810. Available from: https://doi.org/10.1007/s10811-017-1115-5

Nodularia spumigena is one of the dominant toxic cyanobacteria which produce blooms in the Baltic Sea, a brackish water body, particularly in late summer. Nodularia spp. are known to produce hepatotoxic nodularins (NODs) and other bioactive peptides... Read More about Effects of temperature and salinity on the production of cell biomass, chlorophyll-a and intra- and extracellular nodularins (NOD) and nodulopeptin 901 produced by Nodularia spumigena KAC 66..

Hepatotoxic-microcystins in two drinking water reservoirs in the central region of Ghana. (2017)
Journal Article
ADDICO, G.N.D., LAWTON, L. and EDWARDS, C. 2017. Hepatotoxic-microcystins in two drinking water reservoirs in the central region of Ghana. Toxicology and forensic medicine [online], 2(1), pages 1-11. Available from: https://doi.org/10.17140/TFMOJ-2-111

Background: Microcystins are cyclic peptides containing seven amino acids with the condensation of two terminal amino acids of the linear peptide to form a cyclic compound. The cyclic nature of microcystins suggests that they are highly stable in wat... Read More about Hepatotoxic-microcystins in two drinking water reservoirs in the central region of Ghana..

Archaeological medicinal earths as antibacterial agents: the case of the Basel Lemnian sphragides. (2017)
Journal Article
PHOTOS-JONES, E., EDWARDS, C., HANER, F., LAWTON, L., KEAN, C., LEANORD, A. and PERDIKATSIS, V. 2017. Archaeological medicinal earths as antibacterial agents: the case of the Basel Lemnian sphragides. Geological society: special publications. Geology and medicine: historical connections [online], 452, pages 141-153. Available from: https://doi.org/10.1144/SP452.6

This paper presents the scientific investigation of three Lemnian sphragides (terra sigillata), a famed medicinal clay (earth) of antiquity, dated to the 16th-17th century, and presently in the collection of the Museum for the History of Pharmacy of... Read More about Archaeological medicinal earths as antibacterial agents: the case of the Basel Lemnian sphragides..

Treatment challenge of a cyanobacterium Romeria elegans bloom in a South Australian wastewater treatment plant: a case study. (2016)
Journal Article
PRAPTIWI, R.A., PESTANA, C.J., SAWADE, E.T., SWAIN, N., SCHROEDER, G. and NEWCOMBE, G. 2017. Treatment challenge of a cyanobacterium Romeria elegans bloom in a South Australian wastewater treatment plant: a case study. Environmental technology [online], 38(6), 782-788. Available from: https://doi.org/10.1080/09593330.2016.1262454

A bloom of the non-toxic cyanobacterium Romeria elegans in waste stabilisation ponds (WSPs) within Angaston waste water treatment plant (WWTP) has posed an unprecedented treatment challenge for the local water utility. The water from the WSPs is chlo... Read More about Treatment challenge of a cyanobacterium Romeria elegans bloom in a South Australian wastewater treatment plant: a case study..

Mixing regime simulation and cellulose particle tracing in a stacked frame photocatalytic reactor. (2016)
Journal Article
NAGARAJAN, S., STELLA, L., LAWTON, L.A., IRVINE, J.T.S. and ROBERTSON, P.K.J. 2017. Mixing regime simulation and cellulose particle tracing in a stacked frame photocatalytic reactor. Chemical engineering journal [online], 313, pages 301-308. Available from: https://doi.org/10.1016/j.cej.2016.12.016

To sustainably meet the global energy demand, unconventional methods to produce renewable energy must emerge. Biofuels from cellulose (via fermentable sugar production) mediated via photocatalysis provides an alternative to conventional fossil fuels.... Read More about Mixing regime simulation and cellulose particle tracing in a stacked frame photocatalytic reactor..

Bioindicators assessing water quality and environmental impacts of water treatment plant sludge. (2016)
Journal Article
ABREU DA COSTA, T.R.A., WEBER, O.B., PESTANA, C.J. and CAPELO-NETO, J. 2017. Bioindicators assessing water quality and environmental impacts of water treatment plant sludge. International journal of environment and sustainable development [online], 16(1), pages 25-42. Available from: https://doi.org/10.1504/IJESD.2017.10001350

This study had as objectives to assess water quality using macroinvertebrate communities in Gaviao artificial reservoir (Brazil), used to supply potable water to 2.5 million people, and to evaluate how these organisms responded to the discharge of wa... Read More about Bioindicators assessing water quality and environmental impacts of water treatment plant sludge..

Comparative assessment of visible light and UV active photocatalysts by hydroxyl radical quantification. (2016)
Journal Article
NAGARAJAN, S., SKILLEN, N.C., FINA, F., ZHANG, G., RANDORN, C., LAWTON, L.A., IRVINE, J.T.S. and ROBERTSON, P.K.J. 2016. Comparative assessment of visible light and UV active photocatalysts by hydroxyl radical quantification. Journal of photochemistry and photobiology A: chemistry [online], 334, pages 13-19. Available from: https://doi.org/10.1016/j.jphotochem.2016.10.034

A simple method for determining hydroxyl radical yields on semiconductor photocatalysts is highly desirable, especially when comparing different photocatalyst materials. This paper reports the screening of a selection of visible light active photocat... Read More about Comparative assessment of visible light and UV active photocatalysts by hydroxyl radical quantification..

Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria. (2016)
Journal Article
DREYFUS, J., MONROLIN, Y., PESTANA, C.J., REEVE, P.J., SAWADE, E., NEWTON, K., HO, L., CHOW C.W.K. and NEWCOMBE, G. 2016. Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria. Aqua: journal of water supply: research and technology [online], 65(6), pages 441-452. Available from: https://doi.org/10.2166/aqua.2016.030

This study focussed on the fate of cyanobacteria cells and associated metabolites during the sludge management processes that follow the conventional drinking water treatment train. The topic is of importance, as the release of metabolites during slu... Read More about Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria..