Prof Diane Purchase

Diane has a keen interest in the field of environmental biotechnology. She has published widely and supervised a number of PhD students on:

• the role of biotechnology in pollution control (e.g. removal of heavy metals using microalgae and extremophilic fungi; microbial enzymatic degradation of prion protein; application of biosurfactants to remediation environmental pollutants)
• e-waste treatment and management
• biocementation for ground improvement

Diane is member of the editorial boards of the following international journals published by Springer:

• Environmental Geochemistry and Health (Co-Editor-in-Chief-elect)
• Environmental Science and Pollution Research (Associate Editor)

She is also on the editorial board of The Biologist, published by the Royal Society of Biology.

She is the guest editor of the following special issues:

“Microbial communities and functions contribute to plant performance under various stresses” – Special Issue Frontiers in Microbiology. https://www.frontiersin.org/research-topics/21875/microbial-communities-and-functions-contribute-to-plant-performance-under-various-stresses.

“Antimicrobial resistance and the environment: one health approach”. Antibiotics – Special Issue, MDPI. https://www.mdpi.com/journal/antibiotics/special_issues/Antimicrobial_Environment.

“Innovations in E-waste Management (IE-WM 2021)”. Environmental Technology and Innovation – Special Issue, Elsevier. https://www.journals.elsevier.com/environmental-technology-and-innovation/call-for-papers/innovations-in-e-waste.

SELECTED PEER-REVIEWED ARTICLES FROM 2010

Tripathi S, Purchase D, Govarthanan, Chandra R, Yadav S. 2023. Regulatory and innovative mechanisms of bacterial quorum sensing – mediated pathogenicity: a review. Environmental Monitoring and Assessment. 195, 75. DOI: https://doi.org/10.1007/s10661-022-10564-0

Dasgupta D, Majumder S, Adhikari J, Ghosh P, Purchase D, Garelick H, Debsarkar A, Chatterjee D. 2022. Environmental impact of e-waste management in Indian microscale informal sectors. Environmental Science and Pollution Research. In press. DOI: https://doi.org/10.1007/s11356-022-23700-7

Saran C, Purchase D, Saratale GD, Saratale RG, Ferreira LFR, Bilal M, Iqbal HMN, Mustansar H, Mulla SI, Bharagava RN. 2022. Microbial fuel cell: a green eco-friendly agent for tannery wastewater treatment and simultaneous bioelectricity/power generation. Chemosphere. 312, 137072. DOI: https://doi.org/10.1016/j.chemosphere.2022.137072

Shevah Y, Miller BW, Purchase D, Aisar D, Eilebrecht E, Heath E, Garelick H, Derz K, Krzeminski P, Peijnenburg W. 2022. Bioavailability and significance of endocrine disruptive compounds in ecosystems. Chemistry International, 44, 32-35. DOI: https://doi.org/10.1515/ci-2022-0412.

Tripathi S, Purchase D, Chandra R, Nadda A, Bhargava PC. 2022. Mitigation of hazards and risks of emerging pollutants through innovative treatment techniques of post methanated distillery effluent – a review. Chemosphere. 300, 134586. DOI: https://doi.org/10.1016/j.chemosphere.2022.134586.

Vassallo A, Kett S, Purchase D, Marvasi M. 2022. The bacterial urban resistome: recent advances. Antibiotics, 11, 512. DOI: https://doi.org/10.3390/antibiotics11040512.

Gonzales Baez A, Pantoja Munoz L, Garelick H, Purchase D. 2022. Characterization of industrially pre-treated waste printed circuit boards for the potential recovery of rare earth elements. Environmental Technology and Innovation. 27, 102481. DOI: https://doi.org/10.1016/j.eti.2022.102481.

Singh K, Chandra R, Purchase D. 2022. Unraveling the secrets of rhizobacteria signaling in rhizosphere. Rhizosphere. DOI: https://doi.org/10.1016/j.rhisph.2022.100484.

Purchase D, Farenhorst A, Garelick H, Kandile NG, Luscombe C, McConnell L, Mertoglu B, Miller B, Sakellariadou F, Terzano R, Wu W. 2022. Environmental Chemistry and Sustainability. Chemistry International, 44, 45-48. https://doi.org/10.1515/ci-2022-0231.

Tripathi S, Yadav S, Purchase D, Singh K, Al-Shwaiman HA, Chandra R. 2022. Characterization of persistant organic pollutants and culturable and non-culturable bacterial communities in pulp and paper sludge after secondary treatment. Chemosphere. DOI: https://doi.org/10.1016/j.chemosphere.2022.133892.

Tripathi S, Purchase D, Bilal M, Chandra R, Yadav S. 2022. Bacterial quorum sensing in human pathogenicity and innovative regulatory mechanisms: A review. Enivronmental Monitoring and Assessment. In press. 

Tripathi S, Sangeeta Y, Purchase D, Syed A, Chandra R. 2022. Plant growth promoting strain Bacillus cereus (RCS-4 MZ520573.1) enhances phytoremediation of Cynodon dactylon L. in distillery sludge. Environmental Research. DOI: https://doi.org/10.1016/j.envres.2022.112709.

Pantoja Munoz L, Gonzalez Baez A, Purchase D, Jones H and Garelick H. 2022. Release of microplastic fibres and fragmentation to billions of nanoplastics from period products: preliminary assessment of potential health implications. Environmental Science: Nano. DOI: https://doi.org/10.1039/D1EN00755F.

Tripathi S, Purchase D, Al-Rashed S, Chandra R. 2022. Microbial community dynamics and their relationships with organic and metal pollutants of sugarcane molasses-based distillery wastewater sludge. Environmental Pollution. DOI: https://doi.org/10.1016/j.envpol.2021.118267.

Tripathi S, Chandra R, Purchase D, Bilal M, Syed A, Yadav S. 2022. Quorum sensing – a promising tool for degradation of industrial waste containing persistent organic pollutants. Environmental Pollution. DOI: https://doi.org/10.1016/j.envpol.2021.118342.

Marvasi M, Casillas L, Vassallo A, Purchase D. 2021. Educational activities for students and citizens supporting the One-Health approach on antimicrobial resistance. Antibiotics. 10(12):1519. DOI: https://doi.org/10.3390/antibiotics10121519.

Wu Y, Li Z, Yang Y, Purchase D, Lu Y, Dai Z. 2021. Extracellular polymeric substances facilitate the adsorption and migration of Cu²⁺ and Cd²⁺ in saturated porous media. Biomolecules. 11, 1715. DOI: https://doi.org/10.3390/biom11111715. 

Oluwadipe S, Garelick H, McCarthy S, Purchase D.  2021. A critical review of household recycling barriers in the UK. Waste Management and Research. DOI: https://doi.org/10.1177/0734242X211060619.

Pratap B, Kumar S, Purchase D, Bharagava RN, Dutta V. 2021. Practice of wastewater irrigation and its impacts on human health and environment: a state of the art. International Journal of Environmental Science and Technology. DOI: https://doi.org/10.1007/s13762-021-03682-8. 

Kishor R, Purchase D, Saratale GD, Ferreira LFR, Hussain CM, Mulla SI, Bharagava RN. 2021. Degradation mechanism and toxicity reduction of methyl orgage dye by a newly isolated bacterium Pseudomonas aeruginosa MZ520730. Journal of Water Process Engineering. 43, 102300. DOI: https://doi.org/10.1016/j.jwpe.2021.102300. 

Vassallo A, Kett S, Purchase D, Marvasi M. 2021. Antibiotic resistant genes and bacteria as evolving contaminants of emerging concerns (e-CEC): is it time to include evolution in risk assessment? Antibiotics. 10, 1066. DOI: https://doi.org/10.3390/antibiotics10091066.

Tripathi S, Sharma P, Purchase D, Tiwari M, Chakrabarty D and Chandra R. 2021. Biodegradation of organo-metallic pollutants in distillery wastewater employing a bioaugmentation process. Environmental Technology and Innovation. Environmental Technology and Innovation. 23, 101774. DOI: https://doi.org/10.1016/j.eti.2021.101774.

Safdar UM, Mavroulidou M, Gunn MJ, Purchase D, Gray C, Payne I, Garelick J. 2021.Towards the development of sustainable ground improvement techniques – biocementation study of an organic soil. Circular Economy and Sustainability. DOI: https://doi.org/10.1007/s43615-021-00071-8.

Tripathi S, Sharma P, Purchase D and Chandra R. 2021. Distillery wastewater detoxification and management through phytoremediation employing Ricinus communis L. Bioresource Technology. 233, 125192. DOI: https://doi.org/10.1016/j.biortech.2021.125192. 

Tripathi S, Sharma P, Singh K, Purchase D and Chandra R. 2021. Translocation of heavy metals in medicinally important herbal plants growing on complex organometallic sludge of sugarcane molasses-based distillery waste. Environmental Technology and Innovation. 22, 101434. DOI: https://doi.org/10.1016/j.eti.2021.101434. .

Safdar UM, Mavroulidou M, Gunn MJ, Purchase D, Payne I, Garelick J. 2021. Electrokinetic biocementation of an organic soil. Sustainable Chemistry and Pharmacy. 21, 100405. DOI:  https://doi.org/10.1016/j.scp.2021.100405. 

Kishor R, Purchase D, Saratale GD, Ferreira, LFR, Bilal M, Iqbal HMN and Bharagava RN. 2021. Environment friendly degradation and detoxification of Congo red dye and textile industry wastewater by a newly isolated Bacillus cohnni (RKS9). Environmental Technology and Innovation. 22, 101425. DOI: https://doi.org/10.1016/j.eti.2021.101425. 

Sharma P, Purchase D and Chandra R. 2021. Residual pollutants in treated pulp paper mill wastewater and their phytoxicity and cytotoxicity in Allium cepa. Environment Geochemistry and Health. 43, 2143-2164. DOI: https://doi.org/10.1007/s10653-020-00730-z

Xia H, Zhang W, Yang Y, Purchase D, Zhao C, Song X, Want Y. 2021. Degradation mechanism of Tris(2-chloroethyl) phosphate (TCEP) as an emerging contaminant in advanced oxidation processes: a DFT modelling approach. Chemosphere. 273, 129674  DOI: https://doi.org/10.1016/j.chemosphere.2021.129674

Kishor R, Purchase D, Saratale GD, Saratale RG, Ferreira LFR, Bilal M, Chandra R and Ram Naresh Bharagava. 2021. Ecotoxicological and health concerns of persistent coloring pollutants of textile industry wastewater and treatment approaches for environmental safety. Journal of Environmental Chemical Engineering. 9, 105012 DOI: https://doi.org/10.1016/j.jece.2020.105012

Safdar UM, Mavroulidou M, Gunn MJ, Garelick J, Payne I, Purchase D. 2021. Innovative methods of ground improvement for railway embankment peat fens foundation soil. Géotechnique. In press. DOI:https://doi.org/10.1680/jgeot.19.SiP.030

Purchase D, Abbasi G, Bisschop L, Chatterjee D, Ekberg C, Fedotov P, Garelick H, Kandile N. Lundström, Matharu A, Miller B, Pineda A, Popoola O, Retegan T, Ruedel H, Serpe A, Sheva Y, Surati K, Walsh F, Wilson B.P. and Wong MH. 2020. Global occurrence, chemical properties and ecological impacts of e-wastes (IUPAC Technical Report). Pure and Applied Chemistry. 92, 1733-1767. DOI: https://doi.org/10.1515/pac-2019-0502.

Saxena G, Purchase D, Mulla SI and Bharagava RN. 2020. Degradation and detoxification of leather tannery effluent by a newly developed bacterial consortium GS-TE1310 for environmental safety. Journal of Water Process Engineering. 38, 101592. DOI: https://doi.org/10.1016/j.jwpe.2020.101592.

Safdar MU, Mavroulidou M, Gunn MJ., Gray C, Purchase D, Garelick J and Payne I. 2020. Implementation of biocementation for a partially saturated problematic soil of the UK railway network. E3S web of conferences, 195, pp. 05006. DOI: https://doi.org/10.1051/e3sconf/202019505006. 

Islam M, Durie I, Ramadan R, Purchase D and Marvasi M. 2020. Exploitation of nitric oxide donors to control bacterial adhesion on ready-to-eat vegetables and dispersal of pathogenic biofilm from polypropylene. Journal of the Science of Food and Agriculture. 100, 3078-3086. DOI: https://doi.org/10.1002/jsfa.10340

Yadav A, Raj A, Purchase D, Ferreira LFR, Saratale GD and Bhargava RN. 2019. Phytotoxicity, cytotoxicity and genotoxicity evaluation of organic and inorganic pollutants rich tannery wastewater from a Common Effluent Treatment Plant (CETP) in Unnao district, India using Vigna radiata and Allium cepa. Chemosphere. 224, 324-332. https://doi.org/1016/j.chemosphere.2019.02.124

Zainith S, Purchase D, Ferreira LFR, Bailal M and Bhargava RN. 2019. Isolation and characterization of lignin-degrading bacterium Bacillus aryabhattai from pulp and paper mill wastewater and evaluation of its lignin-degrading potential. 3Biotech. 9:92. https://doi.org/10.1007/s13205-019-1631-x

Saxena G, Purchase D, Mulla SI, Saratele GD and Bhargava RN. 2019. Phytoremediation of heavy metal-contaminated sites: eco-environmental concerns, field studies sustainability issues and future prospects. Reviews of Environmental Contamination and Toxicology. https://doi.org/10.1007/398_2019_24

Popoola OE, Popoola AO and Purchase D. 2019. Levels of awareness and concentrations of heavy metals in the blood of electronic waste scavengers in Nigeria. Journal of Health and Pollution. 9:190311. DOI: https://doi.org/10.5696/2156-9614-9.21.190311

Chan W.K., Wildeboer D., Garelick H. and Purchase D. 2018. Competition of As and other Group 15 elements for surface binding sites of an extremophilic Acidomyces acidophilus isolated from a historial tin mining site. Extremophiles. 22(5), 795-809. https://doi.org/10.1007/s00792-018-1039-2

Isimekhai K.A., Garelick H., Watt J., Purchase D. 2017. Heavy metal distribution and risk assessment in soil from an informal E-waste recycling site in Lagos State Nigeria. Environmental Science and Pollution Research. 24(20), 17206-17219. DOI: 10.1007/s11356-017-8877-9

Chan W.K., Wildeboer D., Garelick H., Purchase D. 2016. A proteomic study on the responses to arsenate stress by an acidophilic fungal strain Acidomyces acidophilus WKC1. Journal of Biotechnology and Biomaterials 6:5(Suppl). DOI: 10.4172/2155-952X.C1.058

Pantoja Munoz L., Purchase D., Jones H., Raab A., Urgast D., Feldmann J., Garelick H. 2016. The mechanisms of detoxcification of As(III), dimethylarsinic acid (DMA) and As (V) in the microalga Chlorella vulgaris. Aquatic Toxicology 175, 56-72. DOI:1016/j.aquatox.2016.02.020

Rüdel H., Díaz Muñiz C., Garelick H., Kandile N.G., W. Miller B.W., Pantoja Munoz L., Peijnenburg W.J.G.M., Purchase D., Shevah Y., van Sprang P., Vijver M. and Vink J.P.M. 2015. Consideration of the bioavailability of metal/metalloid species in freshwaters: experiences regarding the implementation of biotic ligand model-based approaches in risk assessment frameworks. Environmental Science and Pollution Research 22, 7405–7421. DOI: http://dx.doi.org/10.1007/s11356-015-4257-5.

Pantoja Munoz L., Purchase D., Jones H., Feldmann J. and Garelick H. 2014. Enhanced determination of As-phytochelatin complexes in Chlorella vulgaris using focused sonication for extraction of water-soluble species. Analytical Methods 6 (3), 791-797. DOI: https://doi.org/10.1039/c3ay41629a.

Okoroma E.A., Purchase D., Garelick H., Morris R., Neale M.H., Windl O. and Abiola O.O. 2013. Enzymatic formulation capable of degrading scrapie prion under mild digestion conditions. PLOS ONE 8: e68099. DOI: http://dx.plos.org/10.1371/journal.pone.0068099.

Okoroma E.A., Garelick H., Abiola O. and Purchase D. 2012. Identification and characterisation of a Bacillus licheniformis strain with profound keratinase activity for degradation of melanised feather. International Biodeterioration & Biodegradation. 74, 54-60. DOI: 10.1016/j.ibiod.2012.07.013.

Radiar A.R.B. and Purchase D. 2012. Mathematical models to predict soil heavy metal toxicity in the 2012 Olympic site. International Journal of Environmental Science and Technology9, 219-226. DOI:10.1007/s13762-012-0027-9.

Jiang Y., Jones H., Garelick H. and Purchase D. 2011. Effects of arsenate (As5+) on growth and production of glutathione (GSH) and phytochelatins (PCs) in Chlorella vulgaris. International Journal of Phytoremediation 13, 834-844. DOI:10.1080/15226514.2010.525560.

SELECTED BOOK SERIES/BOOK CHAPTER FROM 2010

Wong MH, Purchase D and Dickinson N. (eds) 2023. Food Waste Valorisation – food, feed, fertilizer, fuel and value-added products. World Scientific.  ISBN 978-1-80061-288-4. In press.

Purchase D. 2023. Valorisation of brewery waste in a circular bio-economy – from low-cost animal feed to high-value fine chemicals. In: Food Waste Valorisation – food, feed, fertilizer, fuel and value-added products. World Scientific. ISBN 978-1-80061-288-4. In press.

Mwandira W, Mavroulidou M, Gunn M, Garelick H and Purchase D. 2023. The potential use of food waste in the bio-cementation process for eco-efficient construction materials. In: Food Waste Valorisation – food, feed, fertilizer, fuel and value-added products. World Scientific. ISBN 978-1-80061-288-4. In press.

Russo C and Purchase D. 2023. Application of MALDI-TOF in bioremediation and environmental research. In: Microbiological Identification using MALDI-TOF and Tandem Mass Spectrometry: Industrial and Environmental Applications. Shah HN, Gharbia SE, Shah A, Tranfield E and Thompson C (eds). Wiley, London. ISBN 978-1-11981-407-8. In press.

Kishor R, Bharagava RN, Ferreira LFR, Bilal M and Purchase D. 2021. Molecular techniques used to identify perfluorooctanoic acid degrading microbes and their application in a wastewater treatment reactor/plant. In: Wastewater Treatment Reactors – Microbial Community Structure. Shah MP and Rodriguez-Couto S (eds). pp 253-271. Elseiver. ISBN 978-0-12-823991-9. DOI: https://doi.org/10.1016/B978-0-12-823991-9.00009-5

Kishor R, Purchase D, Ferreira LFR, Mulla SI, Bilal M and Bharagava RN. 2020. Environmental and health hazards of textile industry wastewater pollutants and its treatment approaches. In: Handbook of Environmental Materials Management. Hussain CM (ed), pp. 1-25. Springer DOI: https://doi.org/10.1007/978-3-319-58538-3_230-1.

Futughe AE, Purchase D and Jones H. 2019. Phytoremediation using native plants. In Phytoremediation In-situ Applications. Shmaefsky BR (ed). Springer, Switzerland. ISBN 978-3-030-00099-8.Pp. 285-327 DOI: 10.1007/978-3-030-00099-8.

Chan WK, Wildeboer D, Garelick H, Purchase D. 2019. Acidomyces acidophilus:  Ecology, biochemical properties, and application to bioremediation. In: Fungi in extreme environments: Ecological and biotechnological significance. Springer. Tiquia-Arashiro SM and Grube M (eds), Springer. ISBN 978-3-030-19030-9. Pp. 505-515. DOI: https://doi.org/10.1007/978-3-030-19030-9_25.

Saxena G, Purchase D and Bharagava RN. 2019. Environmental Hazards and Toxicity Profile of Organic and Inorganic Pollutants of Tannery Wastewater and Bioremediation Approaches. In: Bioremediation of Industrial Waste for Environmental Safety – Vol. I, Industrial waste and its management. Springer. ISBN 978-981-13-1891-7. DOI: 10.1007/978-981-13-1891-7_18.

Bharagava RN, Purchase D, Saxena G and Mulla SI. 2018. Applications of metagenomics in microbial bioremediation of pollutants: From genomics to environmental cleanup. In: Microbial Diversity in the Genomic Era. Das S and Das HR. (eds). Academic Press-Elsevier, USA. ISBN: 9780128148495. Pp. 459-477.

Purchase D (ed). 2016. Fungal Applications in Sustainable Environmental Biotechnology. Springer. ISBN 978-3-319-42850-5.

Chan W.K., Wildeboer D., Garelick H., Purchase D. 2016. Mycoremediation of heavy metal/metalloid-contaminated soil: current understanding and future prospects. In: Fungal Applications in Sustainable Environmental Biotechnology. D Purchase (ed). Springer-Nature. 978-3-319-42850-5. pp. 143-181.

Egede E., Jones H., Purchase D., Cook B., Mouradov A. 2016. Application of fungal-algal associations for wastewater treatment. In: Fungal Applications in Sustainable Environmental Biotechnology. D Purchase (ed). Springer-Nature. ISBN 978-3-319-42850-5. pp. 249-272.

Gupta V.K., Zeilinger-Migsich S., Ferreira Filho E.X., Duran C. and Purchase D. (eds) 2016. Microbial Applications – Recent Advancements and Future Developments. Berlin: De Gruyter. ISBN 9-783-110-240-429.

Purchase D. 2016. “Microbial keratinases: characteristics, biotechnological applications and potential”. In: The Handbook of Microbial Bioresources. Gupta V.K., Thangadurai D., Sharma G.D., Gaur R. (eds). Wallingford: CAB International. ISBN 978-1-78064-521-6. pp. 634-674.

Garelick H, Purchase D and Alonso Molina J.L. 2014. "Microbial pollution of water". In: Integrated Water Cycle Management in Kazakhstan. Meyer B.C. and Lundy L (eds). Al-Farabi Kazakh National University, Publishing House: Almaty. ISBN: 978-601-04-0900-2.

SELECTED CONFERENCE PODIUM AND POSTER PRESENTATIONS FROM 2010

Oluwadipe S, Purchase D, Garelick H, McCarthy S, Jones H. Investigating household recycling barriers in Westminster City, UK. 9^th International Conference on Sustainable Solid Waste Management. Corfu, Greece, 15-18 June 2022.

Mwandira W, Mavroulidou M, Gunn M, Garelick H, Purchase D, Esnault-Filet A, Garelick J. Biocementation through the carbonic anhydrase (CA) activity on microorganisms – a review. 9^th International Conference on Environmental Management, Engineering, Planning and Economics and SECOTOX conference. Mykonos, Greence, 3-9 June 2022.

Purchase D. E-waste contamination in soil and its management. 44th Annual International Conference of the Chemical Society of Nigera and IUPAC CHEMRAWN XXII E-waste in Africa, Lagos, Nigeria, 7-11 November 2021. Invited speech.

Safdar UM, Mavroulidou M, Gunn MJ, Purchase D, Payne I and Garelick J. A comparative study of different biocementation implementation methods for embankment foundation soil. EUROENGEO 2020, Athens, Greece, 6-10 October 2021.

Gonzales Baez A., Purchase D, Garelick H and Pantoja Muñoz L. Waste printed circuit boards (WPCBs) as a potential source for the recovery of rare earth elements through bioleaching. 17^th International Conference on Environmental Science and Technology CEST2021, Athens, Greece, 1-4 September 2021.

Gonzales Baez A., Purchase D, Garelick H and Pantoja Muñoz L. A bioleaching approach for the recovery of rare earth elements (REE) from waste printed circuit boards (WPCBs). IUPAC 48th World Chemistry Congress, Montreal, Canada, 13-20 August 2021.

Safdar UM, Purchase D, Mavroulidou M, Garelick J, Gunn MJ. Innovative methods of ground improvement for problematic transport earthwork materials. 16^th International Conference on Environmental Science and Technology CEST2019, Rhodes, Greece, 4-7 September 2019.

Amabogha ON, Garelick H, Jones H and Purchase D. Combining phytoremediation with bioenergy production: developing a multi-criteria decision matrix for plant species selection. 16^th International Conference on Environmental Science and Technology CEST2019, 4-7 September 2019, Rhodes, Greece, 4-7 September 2019.

Gonzales Baez A., Purchase D, Garelick H and Pantoja Muñoz L. Urban mines, recovering rare earth elements from waste printed circuit boards (WPCBs) through bioleaching. 16^th International Conference on Environmental Science and Technology CEST2019, 4-7 September 2019, Rhodes, Greece, 4-7 September 2019.

Purchase D, Abbasi G, Bisschop L, Chatterjee D, Ekberg C, Fedotov P, Garelick H, Kandile N. Lundström, Matharu A, Miller B, Pineda A, Popoola O, Retegan T, Ruedel H, Serpe A, Sheva Y, Surati K, Walsh F, Wilson B.P. and Wong MH. E-waste – an emerging 21st century global grand challenge: global occurrence, chemical properties and ecological impacts. IUPAC 47th World Chemistry Congress, Paris, France, 7-12 July 2019.

Popoola S, Purchase D, Jones H and Pantoja Munoz L. Enzymatic response in Eisenia hortensis and Lumbricus terrestris exposed to 3-, 4- and 5-ring hydrocarbons amended with biosurfactant. 6^th International Symposium on Environmental Biotechnology and Engineering., Sonora, Mexico 5-9 November 2018.

Futughe AE, Jones H, Purchase D. A novel technology of solarization and phytoremediation enhanced with biosurfactant for sustainable treatment of PAH-contaminated soil. 15^th International Phytotechnology Conference, Novi Sad, Serbia 1-5 October 2018.

Hayat F, Roitt I, Shah A, Purchase D and Bayford R. Synthesis and activity of antibiotics conjugated to gold nanoparticles. 21^st International Conference an Advances in New Technologies and their Impact an Microbial Research, London, 21-22 June 2018.

Purchase D, Bisschop L, Ekberg C, Fedotov P, Garelick H, Kandile NG, Luque R, Popoola O E, Rüdel H, Serpe A, Surati K and Wilson BP. Global approaches to environmental exposure – assessment of e-waste. Society of Environmental Toxicology and Chemistry (SETAC) 28^th Europe Annual Meeting, Rome 13-17 May 2018.

Rüdel H, Díaz Muñiz C, Garelick H, Kandile N, Miller BW, Pantoja L,  Peijnenburg W, Purchase D, Shevah Y, Van Sprang P, Vijver M and Vink JPM. Consideration of the bioavailability of metals and metal compounds in freshwaters in regulatory frameworks.  Society of Environmental Toxicology and Chemistry (SETAC) 28^th Europe Annual Meeting, Rome 13-17 May 2018.

Purchase D. ‘E-waste: managing an emerging global environmental challenge’. 16^th International EuCheMS Conference on Chemistry and the Environment, Oslo, Norway, 18-22 June 2017. Invited speech.

Rűduel H., Abbasi G., Popoola O.E., Purchase D. ’Can metals be used as tracers for organic contaminants in potentially e-waste-polluted environmental media?’ 16^th International EuCheMS Conference on Chemistry and the Environment, Oslo, Norway, 18-22 June 2017.

Popoola S., Purchase D., Jones H. Enhanced vermiremediation of hydrocarbon contaminated lands with biosurfactants: an excotoxicological approach. 27^th SETAC Europe Annual Meeting, Brussels 7-11 May 2017.

Khonsari S., Gonzalez Baez A., Nguyen H., Pantoja Munoz L., Purchase D. ‘A study of the inhibition of biofilm formation on multiple surfaces by a biosurfactant containing four discrete lipopeptides.’ Microbiology Society Annual Conference, Edinburgh, UK, 3-6 April 2017.

Purchase D. Electronic waste – an emerging global environmental and health challenge in the 21st century. SmART Cities and Waste Research Workshop: Urban Waste Streams & Flows, London, UK, 6 April 2017. Invited speech

Chan W.K., Wildeboer D., Garelick H., Purchase D. ‘A proteomic study on the responses to arsenate stress by an acidophilic fungal strain Acidomyces acidophilus WKC1’. Biotechnology World Convention, Sao Paulo, Brazil, 15-17 August 2016.

Khonsari S., Gonzalez Baez A., Nguyen H., Pantoja Munoz L., Purchase D. A study of the inhibition of biosurfactant on in vitro biofilm formation by bacterial pathogens: application of MALDI-TOF MS in strain indentification and characterisation of the lipopeptides. 19^th Conference in Genomics and Proteomics of Human Pathogens, London, UK 23-24 June 2016.

Isimekhai K., Watt J., Garelick H., Purchase D. Risk analysis of informal recycling of electronic waste in Lagos State, Nigeria. 25^th Society for Risk Analysis Europe Conference, Bath, UK 20-22 June 2016.

Ismekhai K., Garelick H., Watt J., Purchase D. Analysis of contaminated soil at an e-waste recycling site. A case study of Lagos, Nigeria. 15^th EuCheMS International Conference on Chemistry and the Environment. Leipzig, Germany, 20-24^th September 2015.

Pantoja L., Purchase D., Jones H., Feldmann J., Garelick H. The mechanisms of arsenic bioremediation from water by the green microalgaeChlorella vulgaris. THE BNASS / TraceSpec Tandem Conference Aberdeen, Scotland; 31^st August - 4th September 2014.

Chan W., Wildeboer D., Garelick H., Purchase D. Investigating Arsenic Resistance in Fungi from Tin-mining Soil and the Possible Interaction Between Arsenic and Tin/Antimony.  10^th International Mycological Congress, Bangkok, Thailand 3-8 August 2014.

Isimekhai A. K., Watt J., Garelick H., Purchase D. Environmental Risk Associated with Improper e-waste Activities in Lagos, Nigeria. 23^rd Society for Risk Analysis Europe Conference, Istanbul, Turkey 16-18 June 2014.

Pantoja Muñoz L., Garelick H., Purchase D., Jones H. Arsenic Chelation, The Meeting of Two Kingdoms. 44th IUPAC Congress - Clean Energy Through Chemistry, 2013, Istanbul, Turkey 12-16 August 2013. 

Munoz L.P., Purchase D., Jones H. and Garelick H. The occurrence of Arsenic-glutathione complesex in Chlorella vulgaris: off-line elemental (ICP-MS) and molecular (ES-MS) mass spectrometric detection for liquid chromatographic separation. 6th SETAC World Congress, Berlin 20-24 May 2012.

Purchase D. 'Beauvaria, Biosurfactant and Bacillus - Microbial Potential in Remediating Pollutants'. 1st International Microorganism Conference: "Microorganisms facing their environment". Paris, France, 27-28 October 2011. Invited speech.

Okoroma, E.A, Purchase D., Garelick H., Morris R. and Abiola O. Degradation of infective prion protein by a novel enzymatic composition. PRION 2011, Montreal, 16-19 May 2011.

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