BINGHAMTON, NY – Researchers at Binghamton University have created a micro-scale biological solar cell that generates a higher power density for longer than any existing cell of its kind.
A microfluidic lab-on-a-chip system that generates its own power is essential for stand-alone, independent, self-sustainable point-of-care diagnostic devices to work in limited-resource and remote regions, said Electrical and Computer Science Assistant Professor Seokheun Choi. Miniaturized biological solar cells (or micro-BSCs) can be the most suitable power source for those applications because the technique resembles the earth’s natural ecosystem.
Photography: Seokheun Choi.
“Micro-BSCs can continuously generate electricity from microbial photosynthetic and respiratory activities over day-night cycles. Thereby offering a clean and renewable power source with self-sustaining potential,” said Choi. “However, the promise of this technology has not been translated into practical applications. All because of its relatively low power and current short lifetimes.”
Choi and PhD candidate Lin Liu created a microscale microfluidic biological solar cell. One that can attain high electrical power and long-term operational capability. All which will provide a practical and sustainable power supply. That’s for lab-on-a-chip applications. The bio-solar cell also generated the highest power density. Especially for the longest time among any existing micro-scale bio-solar cells.
“The device will release biological photo-energy conversion technology from its restriction to conceptual research. In addition, it will advance its translational potential. Especially toward practical and sustainable power applications. That’s for point-of-care diagnostics to work independently and self-sustainably. Most importantly and in limited-resource and remote regions,” added Choi.
In conclusion, the paper, “Self-sustainable, high-power-density bio-solar cells for lab-on-a-chip applications.” For it was published in Lab on a Chip.
Source: Binghamton University, October 17, 2017