@article {3048,
	title = {Microbial biofilms for electricity generation from water evaporation and power to wearables.},
	journal = {Nat Commun},
	volume = {13},
	year = {2022},
	month = {2022 Jul 28},
	pages = {4369},
	abstract = {<p>Employing renewable materials for fabricating clean energy harvesting devices can further improve sustainability. Microorganisms can be mass produced with renewable feedstocks. Here, we demonstrate that it is possible to engineer microbial biofilms as a cohesive, flexible material for long-term continuous electricity production from evaporating water. Single biofilm sheet (~40 {\textmu}m thick) serving as the functional component in an electronic device continuously produces power density (~1 μW/cm) higher than that achieved with thicker engineered materials. The energy output is comparable to that achieved with similar sized biofilms catalyzing current production in microbial fuel cells, without the need for an organic feedstock or maintaining cell viability. The biofilm can be sandwiched between a pair of mesh electrodes for scalable device integration and current production. The devices maintain the energy production in ionic solutions and can be used as skin-patch devices to harvest electricity from sweat and moisture on skin to continuously power wearable devices. Biofilms made from different microbial species show generic current production from water evaporation. These results suggest that we can harness the ubiquity of biofilms in nature as additional sources of biomaterial for evaporation-based electricity generation in diverse aqueous environments.</p>},
	keywords = {Bioelectric Energy Sources, Biofilms, Electricity, Electrodes, Water, Wearable Electronic Devices},
	issn = {2041-1723},
	doi = {10.1038/s41467-022-32105-6},
	author = {Liu, Xiaomeng and Ueki, Toshiyuki and Gao, Hongyan and Woodard, Trevor L and Nevin, Kelly P and Fu, Tianda and Fu, Shuai and Sun, Lu and Lovley, Derek R and Yao, Jun}
}
@article {3069,
	title = {Bioinspired bio-voltage memristors.},
	journal = {Nat Commun},
	volume = {11},
	year = {2020},
	month = {2020 Apr 20},
	pages = {1861},
	abstract = {<p>Memristive devices are promising candidates to emulate biological computing. However, the typical switching voltages (0.2-2 V) in previously described devices are much higher than the amplitude in biological counterparts. Here we demonstrate a type of diffusive memristor, fabricated from the protein nanowires harvested from the bacterium Geobacter sulfurreducens, that functions at the biological voltages of 40-100 mV. Memristive function at biological voltages is possible because the protein nanowires catalyze metallization. Artificial neurons built from these memristors not only function at biological action potentials (e.g., 100 mV, 1 ms) but also exhibit temporal integration close to that in biological neurons. The potential of using the memristor to directly process biosensing signals is also demonstrated.</p>},
	keywords = {Action Potentials, Biosensing Techniques, Electricity, Electronics, Equipment Design, Geobacter, Humans, Molecular Dynamics Simulation, Nanotechnology, Nanowires, Neural Networks, Computer, Neurons, Synapses, Wearable Electronic Devices},
	issn = {2041-1723},
	doi = {10.1038/s41467-020-15759-y},
	author = {Fu, Tianda and Liu, Xiaomeng and Gao, Hongyan and Ward, Joy E and Liu, Xiaorong and Yin, Bing and Wang, Zhongrui and Zhuo, Ye and Walker, David J F and Joshua Yang, J and Chen, Jianhan and Lovley, Derek R and Yao, Jun}
}
