10.6084/m9.figshare.4021803.v2 Paolo Bombelli Paolo Bombelli Ross J. Dennis Ross J. Dennis Fabienne Felder Fabienne Felder Matt B. Cooper Matt B. Cooper Durgaprasad Madras Rajaraman Iyer Durgaprasad Madras Rajaraman Iyer Jessica Royles Jessica Royles Susan T. L. Harrison Susan T. L. Harrison Alison G. Smith Alison G. Smith C. Jill Harrison C. Jill Harrison Christopher J. Howe Christopher J. Howe Supplementary material from "Electrical output of bryophyte microbial fuel cell systems is sufficient to power a radio or an environmental sensor" The Royal Society 2016 microbial fuel cell plant microbial fuel cell bioelectricity electrochemistry bryophyte 2016-10-20 13:10:02 Dataset https://rs.figshare.com/articles/dataset/4_BryoMFC_manuscript_-_Carbo-paper_water_retention_-_Fig2i_from_Electrical_output_of_bryophyte_microbial_fuel_cell_systems_is_sufficient_to_power_a_radio_or_an_environmental_sensor/4021803 Plant microbial fuel cells are a recently developed technology that exploits photosynthesis in vascular plants by harnessing solar energy and generating electrical power. In this study, the model moss species <i>Physcomitrella patens</i>, and other environmental samples of mosses, have been used to develop a non-vascular bryophyte microbial fuel cell (bryoMFC). A novel three-dimensional anodic matrix was successfully created and characterized and was further tested in a bryoMFC to determine the capacity of mosses to generate electrical power. The importance of anodophilic microorganisms in the bryoMFC was also determined. It was found that the non-sterile bryoMFCs operated with <i>P. patens</i> delivered over an order of magnitude higher peak power output (2.6 ± 0.6 µW m<sup>-2</sup>) than bryoMFCs kept in near-sterile conditions (0.2 ± 0.1 µW m<sup>-2</sup>). These results confirm the importance of the microbial populations for delivering electrons to the anode in a bryoMFC. When the bryoMFCs were operated with environmental samples of moss (non-sterile) the peak power output reached 6.7 ± 0.6 mW m<sup>-2</sup>. The bryoMFCs operated with environmental samples of moss were able to power a commercial radio receiver or an environmental sensor (LCD desktop weather station).