Smart bricks capable of recycling wastewater and generating electricity from sunlight are being developed by a team of scientists from the University of the West of England (UWE Bristol). The bricks will be able to fit together and create ‘bioreactor walls’ which could then be incorporated in housing, public building and office spaces
The UWE Bristol team is working on the smart technologies that will be integrated into the bricks in this pan European ‘Living Architecture’ (LIAR) project led by Newcastle University. The LIAR project brings together living architecture, computing and engineering to find a new way to tackle global sustainability issues.
The smart living bricks will be made from bio-reactors filled with microbial cells and algae. Designed to self-adapt to changing environmental conditions the smart bricks will monitor and modify air in the building and recognise occupants.
Each brick will contain Microbial Fuel Cells (MFCs) containing a variety of micro-organisms specifically chosen to clean water, reclaim phosphate, generate electricity and facilitate the production of new detergents, as part of the same process.
The MFCs that will make up the living engine of the wall of smart bricks will be able to sense their surroundings and respond to them through a series of digitally coordinated mechanisms.
Professor Andrew Adamatzky, LIAR Project Director for UWE Bristol, is leading the UWE Bristol team, he said, “The technologies we are developing aim to transform the places where we live and work enabling us co-live with the building.
The University of the West of England (also known as UWE Bristol, or simply UWE) is a university located near the city of Bristol, United Kingdom.
Its main campus is at Frenchay near Bristol, about five miles (8 km) north of the city centre and close to the M32 motorway.
UWE also has campuses at St Matthias and Glenside in north-east Bristol and Bower Ashton, near Ashton Court in south-west Bristol. There is also a regional centre at Gloucester Docks, Gloucestershire, and an associate faculty (Hartpury College) specialising in animal behaviour and welfare, agricultural and sports related courses in Hartpury, Gloucestershire.
With around 25,000 students and 3,000 academic staff, UWE is the larger of the two universities in Bristol (the longer established University of Bristol has approximately 18,000 students).
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A future computer might be a lot slimier than the solid silicon devices we have today.
In a study published in the journal Materials Today, European researchers reveal details of logic units built using living slime molds, which might act as the building blocks for computing devices and sensors. Andrew Adamatzky (University of the West of England, Bristol, UK) and Theresa Schubert (Bauhaus-University Weimar, Germany) have constructed logical circuits that exploit networks of interconnected slime mold tubes to process information.
One is more likely to find the slime mold Physarum polycephalum living somewhere dark and damp rather than in a computer science lab. In its “plasmodium” or vegetative state, the organism spans its environment with a network of tubes that absorb nutrients. The tubes also allow the organism to respond to light and changing environmental conditions that trigger the release of reproductive spores. In earlier work, the team demonstrated that such a tube network could absorb and transport different colored dyes. They then fed it edible nutrients – oat flakes – to attract tube growth and common salt to repel them, so that they could grow a network with a particular structure.
They then demonstrated how this system could mix two dyes to make a third color as an “output”. Using the dyes with magnetic nanoparticles and tiny fluorescent beads, allowed them to use the slime mold network as a biological “lab-on-a-chip” device. This represents a new way to build microfluidic devices for processing environmental or medical samples on the very small scale for testing and diagnostics, the work suggests. The extension to a much larger network of slime mold tubes could process nanoparticles and carry out sophisticated Boolean logic operations of the kind used by computer circuitry.
The team has so far demonstrated that a slime mold network can carry out XOR or NOR Boolean operations. Chaining together arrays of such logic gates might allow a slime mold computer to carry out binary operations for computation. “The slime mold based gates are non-electronic, simple and inexpensive, and several gates can be realized simultaneously at the sites where protoplasmic tubes merge,” conclude Adamatzky and Schubert.
Are we entering the age of the biological computer?
Stewart Bland, Editor of Materials Today, believes that “although more traditional electronic materials are here to stay, research such as this is helping to push and blur the boundaries of materials science, computer science and biology, and represents an exciting prospect for the future.”