Why engineer mushrooms and graphene together? Researchers say: this offers “enormous opportunities for next-generation bio-hybrid applications” in healthcare and other sectors.
“Researchers at Stevens Institute of Technology have taken an ordinary white button mushroom from a grocery store and made it bionic, supercharging it with 3D-printed clusters of cyanobacteria that generate electricity and swirls of graphene nano-ribbons that can collect the current.
The work, reported in the Nov. 7 issue of Nano Letters, may sound like something straight out of Alice in Wonderland, but the hybrids are part of a broader effort to better improve our understanding of cells biological machinery and how to use those intricate molecular gears and levers to fabricate new technologies and useful systems for defence, healthcare and the environment.
“In this case, our system – this bionic mushroom – produces electricity,” said Manu Mannoor, an assistant professor of mechanical engineering at Stevens. “By integrating cyanobacteria that can produce electricity, with nanoscale materials capable of collecting the current, we were able to better access the unique properties of both, augment them, and create an entirely new functional bionic system.”
Cyanobacteria’s ability to produce electricity is well known in bioengineering circles. However, researchers have been limited in using these microbes in bioengineered systems because cyanobacteria do not survive long on artificial bio-compatible surfaces.
Mannoor and Sudeep Joshi, a postdoctoral fellow in his lab, wondered if white button mushrooms, which naturally host a rich microbiota but not cyanobacteria specifically, could provide the right environment – nutrients, moisture, pH and temperature — for the cyanobacteria to produce electricity for a longer period.”….
“With this work, we can imagine enormous opportunities for next-generation bio-hybrid applications,” Mannoor says. “For example, some bacteria can glow, while others sense toxins or produce fuel. By seamlessly integrating these microbes with nanomaterials, we could potentially realise many other amazing designer bio-hybrids for the environment, defence, healthcare and many other fields.”
Source: Stevens Institute of Technology . Image: from the YouTube clip by Seeker.
Related video: by Seeker on Mushrooms and Graphene