‘Like having billions of tiny 3D printers’: Scientists train BACTERIA to build complex microscopic structures

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Researchers at Finland’s Aalto University have successfully turned bacteria into a microscopic workforce of nanobots, using molds made of hydrophobic material to create incredibly intricate three-dimensional objects.

The researchers placed the Komagataeibacter medellinensis bacteria in a mould with water and the requisite amount of nutrients like sugar, proteins and air. Once sufficiently fuelled-up, the bacteria begin to produce nano cellulose structures, in line with the hydrophobic (water repellant) mold in which they were placed.

Cellulose is the main component found in the cell walls of plants and substances like wood and cotton.

This type of guided growth through the use of superhydrophobic materials, which also minimize the accumulation of dust and microorganisms, could soon be used for extremely intricate tissue regeneration and organ repair in the human body.

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Rare Microbe To Help Make A Better Biofuel

Rare Bug To Help Make A Better Biofuel

Zymetis is testing genetically modified bacteria that efficiently convert biomass into sugar.  

A tiny microbe found in the Chesapeake Bay is the focus of intense study for a biotech startup in College Park, MD. Zymetis has genetically modified a rare, cellulose-eating bacterium to break down and convert cellulose into sugars necessary to make ethanol, and it recently completed its first commercial-scale trial. Earlier this year, the company ran the modified microbe through a series of tests in large fermenters and found that it was able to convert one ton of cellulosic plant fiber into sugar in 72 hours. The trial, researchers say, illustrates the organism’s potential in helping to produce ethanol cheaply and efficiently at industrial scales. Zymetis is now raising the first round of venture capital to bring the technology to commercial applications.

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