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Saturday, 28 March

Dyson Blows Prize Fund On A Fishy Story

MarinaTex
Afflo
Sunup Solar Backpack

MarinaTex is a new form of bioplastic made from fish offcuts and red algae that could replace single-use plastics.

Would you believe that the UK it produces 2.5 five million tonnes of plastic packaging (half of the 5 million tonnes of plastic produced overall) and 492,020 tonnes of fish waste annually.

 

James Dyson Award

MarinaTex takes the organic fish waste ordinarily destined for landfill or incineration and combines it with the red algae to produce a translucent and flexible sheet material, making it ideal for applications in single-use packaging. While it may look and feel like plastic, its similarities end there. In fact, it is stronger, safer and much more sustainable than its oil-based counterpart. The product uses the red algae to bind the proteins extracted from fish waste, MarinaTex has strong overlapping bonds giving it strength and flexibility

MarinaTex is the brainchild of this year’s UK national James Dyson Award winner, 23-year old Lucy Hughes from the University of Sussex.

The material is relatively resource-light, requiring little energy and temperatures under 100 degrees to produce. Fortunately, it biodegrades after four to six weeks, and is suitable for home composting and does not leach toxins, removing the need for its own national waste management infrastructure. A recent Parliamentary Committee has said supermarkets should focus on plastic reduction and no compostable bags as the UK is unable to deal with them at scale at this time.

As MarinaTex uses by-products from the fishing industry, this helps to close the loop of an existing waste stream for a more circular product lifespan. According to Hughes, one Atlantic cod could generate as much organic waste as is needed for making 1,400 bags of MarinaTex.

 

A fishy tale

Unwanted offcuts from the fish processing industry is a huge waste stream in the UK. It’s comprised of offal, blood, crustacean and shellfish exoskeletons and fish skins and scales – the bits that end up in landfill rather than on our plates. Through extensive research, Hughes found that the fish skins and scales were the most promising sources, due to their flexibility and strength enabling proteins.

In order to give these proteins something to attach to, Hughes set about finding an organic binder. Keen to keep the solution local in order to reduce transportation, she looked to the Sussex coastline on her doorstep, experimenting with different organic marine binders, finally settling on agar. It took over 100 different experiments to refine the material and process, most of which she did on the kitchen stove of her student accommodation. She finally created a consistent and plastic-like material that was both biodegradable and translucent.

 

Not for a day

Hughes said: “Plastic is an amazing material but we’re too reliant on it as designers and engineers. It makes no sense to me that we’re using plastic, an incredibly durable material, for products that have a life-cycle of less than a day.  For me, MarinaTex represents a real commitment to innovating plastic use and incorporating sustainable, local and circular values into product design."

 

Form, function - footprint

Hughes continued: "As engineers, we shouldn’t limit ourselves to designing to form and function, but rather form, function and footprint.”

 

 

National winner

As national winner of the James Dyson Award, Lucy will receive £2,000 as well as moving on to the international round of the competition, for a chance to win £30,000. Hughes aims to commercialise her invention sustainably, using her award money for further research into how MarinaTex can become a global answer to the abundance of plastic waste while still harnessing local solutions.

 

The Runners-up

Afflo, Anna Bernbaum, Dyson School of Dyson Engineering, Imperial College London

Problem: Asthma occurs in response to external triggers. Matching triggers to individuals’ symptoms is problematic, currently done by trial and error. On average, three people die from an asthma attack in the UK every day and the condition costs the NHS £1 billion a year. After interviewing patients at Guys Hospital and conducting an online survey, Bernbaum found that the major gap in asthma management today is trigger identification.

Solution: Afflo is an AI-enabled wearable device that monitors asthmatic symptoms and predicts triggers, allowing users to make data driven decisions about their asthma management. Afflo collects respiratory audio signals through a specialised microphone and pairs this with environmental information – collected through a sensor bundle for local factors and online sources for macro level data. The system can predict each patient’s unique trigger pattern. A machine learning algorithm analyses the two streams of data in the cloud. The results are presented back to the user through the Afflo App, allowing them to make lifestyle decisions and minimise future symptoms. Over time, this data can be reviewed by medical professionals remotely, to cost effectively refine treatment plans.

 

Sunup Solar Backpack, Bradley Brister, Brunel University London

Problem: There are two major kinds of existing solar panels. Thin film solar panels are flexible but only 7% efficient, whereas rigid panels are around 20% efficient but do not allow for flexible usage. For those wanting to harness portable energy off-grid, this is a problem.

Solution: Using a tessellated design inspired by NASA’s space fabrics, Sunup uses the benefits of both types of solar panels to marry flexibility, durability and efficiency into one machine. Replacing a wired structure with an articulating conductive hinge system, Sunup’s rigid polycrystalline solar panels can be draped over backpacks or medical tents, adapting to different shapes and structures while not suffering from work-hardening and breakages. The result is a durable and supple design, which provides a system that can fully charge your phone and have capacity left over within 12 hours of walking.

Picture: MarinaTex is the brainchild of this year’s UK national James Dyson Award winner, 23-year old Lucy Hughes from the University of Sussex. Plus Sunup Solar Backpack and Afflo.

 

Article written by Cathryn Ellis

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