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Scientists Develop Synthetic Plants Capable of Purifying Indoor Air and Producing Electricity

The Importance of Indoor Air Quality

The average American spends about 90% of their life indoors, and the air quality in these environments, such as homes, schools, or workplaces, directly affects their health and wellness.

However, the majority of air purification systems are costly, bulky, and require regular maintenance or filter replacement to maintain peak performance.

Groundbreaking Research by Binghamton University

Binghamton University's Professor Seokheun 'Sean' Choi and Ph.D. researchers Maryam Rezaie are transforming their studies on bacteria-powered biobatteries-both ingestible and conventional-into a groundbreaking idea for artificial plants capable of absorbing carbon dioxide, releasing oxygen, and generating small amounts of electricity.

Publication of Research Findings

The researchers have published a paper outlining their results in the journal Advanced Sustainable Systems.

Insights on Indoor Air Pollution

"After experiencing the COVID-19 pandemic, the importance of indoor air quality is clearer than ever," said Choi, a professor in the Department of Electrical and Computer Engineering at the Thomas J. Watson College of Engineering and Applied Science.

"Numerous sources, such as building materials and carpets, can emit highly toxic substances. As we inhale and exhale, carbon dioxide accumulates. Additionally, risks arise from cooking and outdoor infiltration."

Development of the Artificial Plant

Choi and Rezaie initially created an artificial leaf 'for fun' using five biological solar cells and photosynthetic bacteria, but soon realized the broader potential of the concept. They built the first plant with five leaves and tested its ability to capture carbon dioxide and generate oxygen.

Power Generation Capabilities

While generating about 140 micro-watts power is a secondary benefit, Choi aims to enhance the technology to achieve a minimum output exceeding 1 milliwatt. He also intends to incorporate an energy storage system, such as lithium-ion batteries or super-capacitors.

Practical Applications and Future Enhancements

"I hope to use this electricity for practical applications like charging mobile phones,," he said.

Future enhancements may involve employing multiple species of bacteria to ensure long-term sustainability and creating systems to reduce maintenance needs, including water and nutrient delivery mechanisms.

The Future of Artificial Plants

"With a bit of refinement, these artificial plants could be integrated into every household," Choi states. "The advantages of this concept are readily apparent."

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