James F. Lawrence

LANTHANUM (LaCl 3 ) ADDITION DIVERSIFIES ORGANIC ACID PRODUCTION AND SIGNIFICANTLY ENHANCES METHANE PRODUCTION IN A METHANOGENIC CONSORTIUM

James F. Lawrence, Vincenzo Pelagalli, Gavin Collins, Piet N.L. Lens

Abstract Trace elements, such as iron, nickel, and cobalt are known to regulate methanogenic activity in anaerobic digestors used for waste valorisation, but the potential role of rare earth elements remains poorly understood. This study investigated the effects of lanthanum (La) supplementation …

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Analytical Methodology for Organophosphorus Pesticides Used in Canada

James F. Lawrence

An overview of analytical methodology for the determination of organophosphate pesticides residues in foods is presented. Sample extraction is carried out with acetone followed by a dichloromethane—hexane partition. The organic extract is purified by automated gel permeation chromatography and analysed by capillary …

ca, cn (code pays fourni par la source)

Recent developments and future perspectives of marine macroalgae biorefinery in a circular bioeconomy approach

James F. Lawrence, Armando Oliva, Jerry D. Murphy, Piet N.L. Lens

Carbon counting and the carbon footprint of products are of issue to numerous industries. Macroalgae, a third-generation biomass, offers significant benefits as a feedstock within a circular economy system. Macroalgae are rich in a range of carbohydrates, which differ from typical terrestrial …

Biofuel and volatile fatty acids production from raw and pretreated spent coffee grounds in semi-continuous bioreactors

James F. Lawrence, Armando Oliva, Stefano Papirio, Jerry D. Murphy et autres

This study shows biofuels and biocommodities, i.e., hydrogen, volatile fatty acids (VFAs), and methane, can be produced in semi-continuous bioreactors from spent coffee grounds (SCG). The semi-continuous reactor operated first on untreated SCG (Reactor 1) followed by feeding ultrasound-pretreated SCG (Reactor 2) …

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Acidogenic fermentation of Ulva in a fed-batch reactor system: tubular versus foliose biomass

James F. Lawrence, Armando Oliva, Jerry D. Murphy, Piet N.L. Lens

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Improving hydrogen and volatile fatty acids production through pretreatment of spent coffee grounds

James F. Lawrence, Armando Oliva, Stefano Papirio, Jerry D. Murphy et autres

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Effect of ulvan extraction and process temperature on dark fermentation of the marine macroalgae Ulva

James F. Lawrence, Armando Oliva, Jerry D. Murphy, Piet N.L. Lens

• Process temperature and pretreatment were investigated to enhance H 2 yield from Ulva. • Impact of ulvan extraction on the biorefinery potential of Ulva was investigated. • Ulvan-extracted Ulva achieved a maximum H 2 yield of 15.3 mL H 2 /g …

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A European Bioanalysis Forum recommendation for requiring a context-of-use statement for successful development and validation of biomarker assays

Kyra J. Cowan, Ulrich Kunz, Peter Blattmann, Pratiksha Gulati et autres

The European Bioanalysis Forum, alongside key industry stakeholders, has been driving the discussions around the implementation of context-of use for biomarker assays to ensure that these assays are validated appropriately depending on their purpose. Insights into understanding why the implementation of context-of-use …

de, cn, au, ch, us, dk, gb, it, hr (code pays fourni par la source)

Macroalgae biorefinery and its role in achieving a circular economy

James F. Lawrence, Armando Oliva, Jerry D. Murphy, Piet N.L. Lens

Abstract Availability of fossil fuels and feedstocks is a major problem currently faced by a variety of sectors thus highlighting the importance of transitioning towards a circular economy. Increased pollution, fossil fuel availability and other adverse effects are just some of the …

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Algal Systems for Resource Recovery from Waste and Wastewater

Piet N.L. Lens, Amitap Khandelwal, Bruno Assis Pessi, A.M. Rada-Ariza et autres

Abstract This book provides comprehensive insights on existing technologies and up-to-date advances in the field of waste management and treatment using algal-based technologies via different approaches and systems. Coverage includes: Process fundamentals of algae-based wastewater treatment, including metabolic modelling, algal species for …

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The effect of water on gold supported chiral graphene nanoribbons: rupture of conjugation by an alternating hydrogenation pattern

Alejandro Berdonces‐Layunta, Adam Matěj, Alejandro Jiménez-Martín, James F. Lawrence et autres

In the last few years we have observed a breakpoint in the development of graphene-derived technologies, such as liquid phase filtering and their application to electronics. In most of these cases, they imply exposure of the material to solvents and ambient moisture, …

es, cz, us (code pays fourni par la source)

Topological design and synthesis of high-spin aza-triangulenes without Jahn-Teller distortions

James F. Lawrence, Yuanyuan He, Haipeng Wei, Jie Su et autres

The atomic doping of open-shell nanographenes enables the precise tuning of their electronic and magnetic state, which is crucial for their promising potential applications in optoelectronics and spintronics. Among this intriguing class of molecules, triangulenes stand out with their size-dependent electronic properties …