Chair in Biological Sciences
Head of School of Biological Sciences
Study of the relationship between pollutant speciation and toxicity. Fate and transformation of environmental pollutants. Use of analytical chemical tools to study organism responses to pollutants. Application and comparison of ecotoxicity assays to environmental sample. General soil microbiology and biochemistry. Specific areas of interest are:
- Fate of inorganic/ organic pollutants in the environment
- Development of bioassays to assess environmental toxicity
- Chemical and biological techniques for soil Remediation
- Soil genesis and classification and linkage to soil biology
The current research group has several strands. Mostly the focus is on process level soil microbiology as a response to perturbations- mainly pollution. Biosensors are widely used to quantify and better understand these impacts and to relate to the aspects of bioavailability. To an extent these enable sustainable solutions to be developed and bespoke risk assessment to be measured.
If you are interested in joining the group then have a think about the work that the current group and recently completed members have contributed.
Dr. Lenka (Maderova) Mbadugha complements the research team with her expertise in pollution monitoring and biosensor development.
Mary Allagoa is using fugacity and QRA strategies to relate hydrocarbon fate and impact in the environment. Emmanuel Awulu is developing and comparing a range of mutagenic assays (microbial and human cell type) to devise rapid screening tests for ecotoxicology applications.
Rosie Boyko is studying the link between soil pH management and sward quality with reference to Scotland and food security.
Sapar Dossanov is looking at integrated approaches of risk and hazard assessment in current and historic metal mines. Amira Alzadjali is developing new elemental specific biosensors to update the current suite used by the group in environmental diagnostics. Mohammed Alotaibi is researching the role of buffering agents and the physical shape and size of nano-particles in terms of ecotoxicology.
Abubakar Yuguda is devising methods to apply mycorrhizal enhanced maize plants in the remediation of soils impacted with effluents from the tannery industry. He spends his time both in Aberdeen and in Nigeria.
Aftab Majeed is considering the challenges of quantifying urban ecology with respect to planning challenges from a quantitative basis.
Barry Nourice has submitted his thesis looking at the fragile status of soils in the Seychelles. Victor Igwe has completed his thesis making use of microbial processes for the production of bioethanols. This made use both of empirical and modelling approaches.
In recent years we have had many completions. Dr. Ogo Iroakasi finished her thesis on the production and application of microbial biosurfactants. This was applicable both to enhanced oil recovery and bioremediation. While Ogo was characterising and optimising the performance and potential value, Chisom Agunwoke developed their role in soil and sediment remediation. Lynne Copland compared the performance of these biosurfactants with synthetic materials. Mouza Al Mansouri studied sustainable water storage in Abu Dhabi where she works as the Director in Spatial Data Analysis at the Environment Agency. Dr. Alex Laurie completed her thesis developing a suite of ecotoxicity (microbial) assays that can effectively integrate with nano-particles (NP). The particular interest relates to silver and copper based materials. Dr. Saad Dehlawi completed his research using chemical additives to enhance mobility and complexation of pollutants as a strategic technique for land and water remediation. His main strand was on the novel use of calcium polysulphides. Dr. Chidinma Anunike used CaSx with a specific focus on the consideration of hexavalent chromium transformation.
Rajendra Uprety completed work that focussed on fundamental aspects of soil sustainability and soil husbandry. Underpinning this work is the factors that change cation exchange capacity a measurement that we all take for granted yet it is as essential to characterise today as it has always been. Anastasia Fountouli studied the relationship between soil pH and the potential impacts on soil physical parameters and whether this may be mediated by microbial or physicochemical drivers. These researchers highlight the importance of looking at fundamental soil processes in the context of enhanced food security and production. Dr. Wei Ma completed her thesis with the successful development of a system for solid phase application of biosensors by comparing detailed analytical chemistry with biological responses. Dr. Sarah Sinebe developed and applied the decision support tools for remediation that have microbial biosensors as a key component in decision making.
Dr. Hedda Weitz, who developed a range of bacterial biosensors and the only effective fungal biolouminescence-based assay, oversees the smooth running of the microbial laboratory very effectively. Jamie Buckingham oversees the challenges of soils, environmental samples and chemical analysis within the group.
Prof. Kirk Semple, Lancaster University
- Remediation Technology
- Land use on Deeside
- Further Info
- Director - Remedios Limited
- Editorial Board for Soil Biology and Biochemistry
- Editorial Board for Water Air Soil Pollution
Remedios is a University of Aberdeen spin-out company (http://www.eshgroup.co.uk/services/specialist-services/contaminated-land-assessment/) based in County Durham. The company develops and applies technologies for the sustainable remediation of contaminated land and waters. Remedios also carries out environmental risk assessment and designs waste management strategies. Graeme is a co-founder of the organisation in 1998.
Epona Technologies has the licence to use DRAM (a patented technology using a whisky by-product for the treatment of contaminated waters). It is a limited company and has applied the technology internationally since 2012.
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- Mbadugha, L, Cowper, D, Dossanov, S & Paton, G 2020, 'Geogenic and anthropogenic interactions at a former Sb mine: environmental impacts of As and Sb', Environmental Geochemistry and Health. [Online] DOI: https://doi.org/10.1007/s10653-020-00652-w
- Lewis, TD, Hallett, PD, Paton, G & Harrold, L 2020, 'Retention and release of nutrients from polyhalite to soil', Soil Use and Management, vol. 36, no. 1, pp. 117-122. [Online] DOI: https://doi.org/10.1111/sum.12548
- Dionisi, D, Igwe, V & Paton, G 2019, 'Effect of the process conditions on the anaerobic fermentation of glucose for the production of chemicals', Biomass Conversion and Biorefinery. [Online] DOI: https://doi.org/10.1007/s13399-019-00557-4
- Lin, H, Lourenço, SDN, Yao, T, Zhou, Z, Yeung, AT, Hallett, PD, Paton, GI, Shih, K, Hau, BCH & Cheuk, JCY 2019, 'Imparting water repellency in completely decomposed granite with Tung oil', Journal of Cleaner Production, vol. 230, pp. 1316-1328. [Online] DOI: https://doi.org/10.1016/j.jclepro.2019.05.032
- Chowdhury, MTA, Deacon, CM, Steel, E, Huq, SMI, Paton, GI, Price, AH, Williams, PN, Meharg, AA & Norton, GJ 2018, 'Physiographical variability in arsenic dynamics in Bangladeshi soils', Science of the Total Environment, vol. 612, pp. 1365-1372. [Online] DOI: https://doi.org/10.1016/j.scitotenv.2017.09.030
- Scott-Emuakpor, E, Paton, GI, Todd, MJ & Macphee, DE 2016, 'Disinfection of E. coli contaminated water using tungsten trioxide-based photoelectrocatalysis', Environmental engineering and management journal, vol. 15, no. 4, pp. 899-903. <> [Online] DOI: http://omicron.ch.tuiasi.ro/EEMJ/issues/vol15/vol15no4.htm
- Alhadrami, HA, Mbadugha, L & Paton, GI 2016, 'Hazard and risk assessment of human exposure to toxic metals using in vitro digestion assay', Chemical Speciation and Bioavailability, vol. 28, no. 1-4, pp. 78-87. [Online] DOI: https://doi.org/10.1080/09542299.2016.1180961
- Jiang, Y, Brassington, KJ, Prpich, G, Paton, GI, Semple, KT, Pollard, SJT & Coulon, F 2016, 'Insights into the biodegradation of weathered hydrocarbons in contaminated soils by bioaugmentation and nutrient stimulation', Chemosphere, vol. 161, pp. 300-307. [Online] DOI: https://doi.org/10.1016/j.chemosphere.2016.07.032
- Zhang, B, Sun, G, Zhu, Y & Paton, GI 2016, 'Quantification of the bioreactive Hg fraction in Chinese soils using luminescence-based biosensors', Environmental Technology and Innovation, vol. 5, pp. 267-276. [Online] DOI: https://doi.org/10.1016/j.eti.2016.05.001
- Li, Q, Csetenyi, L, Paton, GI & Gadd, GM 2015, 'CaCO3 and SrCO3 bioprecipitation by fungi isolated from calcareous soil', Environmental Microbiology, vol. 17, no. 8, pp. 3082-3097. [Online] DOI: https://doi.org/10.1111/1462-2920.12954