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All Outputs (7)

Urine as a suitable fuel for microbial fuel cells (2011)
Conference Proceeding
Ieropoulos, I. A., Greenman, J., & Melhuish, C. (2011). Urine as a suitable fuel for microbial fuel cells. In P. Lunghi, S. Ubertini, & V. Cigolotti (Eds.), Proceedings of EFC11. , (325-326)

MFCs show promise in utilising a wide variety of organic sources. This paper describes the utilisation of neat urine as the main feedstock, with conversion efficiencies of >50%. Power densities of 4.93mW/m2 were recorded when 48 small-scale MFCs were... Read More about Urine as a suitable fuel for microbial fuel cells.

Dielectric elastomer pump for artificial organisms (2011)
Journal Article
Rossiter, J. M., Bowers, A. E., Walters, P., & Ieropoulos, I. (2011). Dielectric elastomer pump for artificial organisms. Proceedings of SPIE, 7976, https://doi.org/10.1117/12.880440

This paper presents a bio-inspired, dielectric elastomer (DE) based tubular pumping unit, developed for eventual use as a component of an artificial digestive tract onboard a microbial fuel cell powered robot (EcoBot). The pump effects fluid displace... Read More about Dielectric elastomer pump for artificial organisms.

Investigating the effects of fluidic connection between microbial fuel cells (2011)
Journal Article
Winfield, J., Ieropoulos, I., Greenman, J., & Dennis, J. (2011). Investigating the effects of fluidic connection between microbial fuel cells. Bioprocess and Biosystems Engineering, 34(4), 477-484. https://doi.org/10.1007/s00449-010-0491-x

Microbial fuel cells (MFCs) can 'treat' wastewater but individually are thermodynamically restricted. Scale-up might, therefore, require a plurality of units operating in a stack which could introduce losses simply through fluidic connections. Experi... Read More about Investigating the effects of fluidic connection between microbial fuel cells.

The overshoot phenomenon as a function of internal resistance in microbial fuel cells (2011)
Journal Article
Winfield, J., Ieropoulos, I., Greenman, J., & Dennis, J. (2011). The overshoot phenomenon as a function of internal resistance in microbial fuel cells. Bioelectrochemistry, 81(1), 22-27. https://doi.org/10.1016/j.bioelechem.2011.01.001

A method for assessing the performance of microbial fuel cells (MFCs) is the polarisation sweep where different external resistances are applied at set intervals (sample rates). The resulting power curves often exhibit an overshoot where both power a... Read More about The overshoot phenomenon as a function of internal resistance in microbial fuel cells.

Power for robotic artificial muscles (2011)
Journal Article
O'Brien, B., Anderson, I. A., Ieropoulos, I., McKay, T., & Melhuish, C. (2011). Power for robotic artificial muscles. IEEE/ASME Transactions on Mechatronics, 16(1), 107-111. https://doi.org/10.1109/TMECH.2010.2090894

Artificial muscles based on the dielectric elastomer actuator (DEA) are an attractive technology for autonomous robotic systems. We are currently exploring their use on EcoBot (Ecological roBot), an autonomous robot being developed by Bristol Robotic... Read More about Power for robotic artificial muscles.

Microbial fuel cells: Scalability and their use in robotics (2011)
Book Chapter
Greenman, J., Ieropoulos, I., & Melhuish, C. (2011). Microbial fuel cells: Scalability and their use in robotics. In N. Eliaz (Ed.), Applications of Electrochemistry and Nanotechnology in Biology and Medicine I (239-290). Springer

This is probably the first written and relatively accurate description of microorganisms, made by the Roman scholar Marcus Terentius Varro (116-27 B.C.). It was then Anthony van Leeuwenhoek (ca. 1677) who, for the first time, observed little animals... Read More about Microbial fuel cells: Scalability and their use in robotics.

Digital fabrication of a novel bio-actuator for bio-robotic art and design (2011)
Conference Proceeding
Walters, P., McGoran, D., & Ieropoulos, I. (2011). Digital fabrication of a novel bio-actuator for bio-robotic art and design. In Society for Imaging Science and Technology (Ed.), NIP27: International Conference on Digital Printing Technologies and Digital Fabrication 2011 (496-499)

We describe the design, fabrication and testing of a biologically-driven actuator which serves as a proof-or-concept "artificial heartbeat" for future use within bio-robotic art and design. The actuator employs live biological material, both as a sou... Read More about Digital fabrication of a novel bio-actuator for bio-robotic art and design.