Heeft plastic op basis van aardolie zijn langste tijd gehad? Steeds meer bedrijven in binnen- en buitenland gaan over op het gebruik van kunststoffen die worden geproduceerd uit natuurlijke hernieuwbare grondstoffen, zoals maïs, aardappels en suikerbieten. Deze zogenaamde biopolymeren zijn niet nieuw, maar wel zeer actueel. Het Kenniscentrum Design en Technologie van Saxion heeft,als onderdeel van het innovatieprogramma Materialen in Ontwerp, een praktijkgericht onderzoek uitgevoerd naar het gebruik van biopolymeren. Hierin is samengewerkt met de Verenigde Maakindustrie Oost, Industrial Design Centre, ontwerpbureau D 'Andrea en Evers en Syntens. Het innovatieprogramma staat onder leiding van de Saxion-lectoren Karin van Beurden, lector Product Design, en Ger Brinks, lector Smart Functional Materials en is gericht op het creëren van praktisch toepasbare kennis in door bedrijven aangedragen vragen en onderwerpen. Daartoe organiseert Saxion specifieke workshops en projecten, waarbij het experts, deskundigen en studenten inzet. Het innovatieprogramma wordt mogelijk gemaakt door gelden van RAAK SIA Regionale Aandacht en Actie voor Kenniscirculatie).
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This paper analyses the performativity of the sociotechnical imaginaries that the online communities interested in blockchain applications (e.g., cryptocurrencies) construct through the memes they share, in the context of a crisis of truth and amid pervasive precarity. These memes adopt a subcultural language that is a mix of financial jargon and blockchain slang, neither building on the established codes of the regulated financial sector nor belonging fully to the colloquial nature of internet banter. Through them, the community collectively constructs ways to overcome the fundamental uncertainty that traverses all aspects of contemporary life – housing, precaritisation of labour, political ruptures, etc – by doubling down on them. Financial speculation is no longer reserved to those with disposable income but becomes a tactic for survival in a scene that actively destabilizes information for competitive market advantage. Through the use of repeated memetic subcultural phrases, blockchain memes blur the difference between fact and fiction in an effort to reconcile the extreme volatility of cryptocurrencies with the neoliberal conviction that the market is always right. As a result, no one is trustworthy, individualism takes on a new dimension, and what Aris Komporozos-Athanasiou calls a “speculative community” arises. Ultimately, this case study highlights how the iterative and distributed character of memes supercharges the normative character of performativity.
Photonic biosensors for medical diagnostics have been in development for some time. They have proven to show equal or better performance as compared to other techniques in terms of sensitivity, accuracy, and reliability. In order for companies to successfully introduce these sensor products on the market, they must also perform equal or better in price per test and usability. The price per test is to a large extent determined by the costs of the (disposable) cartridge containing the sensor chip and bioactive layer. If the active components can be left out of the cartridge a significant cost reduction can be obtained. However, this adds the challenge of coupling light from the source to the sensor chip inside the cartridge and back onto detectors. This coupling requires a positioning accuracy in the (sub-) micrometer regime. Here, we present a demonstrator system, which implements an passive alignment step followed by an active alignment procedure. The initial alignment is realized with high accuracy when placing a cartridge in an acceptor slot. This results in finding a “first light” state, which allows the active alignment to take over. Active alignment is then realized by moving the fiber by means of a set of actuators to the position with optimal coupling efficiency. A demonstrator was designed and manufactured to test the influence of several key parameters, such as the influence of production accuracy of the cartridges on the initial alignment. The resulting system has shown to comply with the requirements of ease of alignment along with full automation.
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Plastic products are currently been critically reviewed due to the growing awareness on the related problems, such as the “plastic soup”. EU has introduced a ban for a number of single-use consumer products and fossil-based polymers coming in force in 2021. The list of banned products are expected to be extended, for example for single-use, non-compostable plastics in horticulture and agriculture. Therefore, it is crucial to develop sustainable, biodegradable alternatives. A significant amount of research has been performed on biobased polymers. However, plastics are made from a polymer mixed with other materials, additives, which are essential for the plastics production and performance. Development of biodegradable solutions for these additives is lacking, but is urgently needed. Biocarbon (Biochar), is a high-carbon, fine-grained residue that is produced through pyrolysis processes. This natural product is currently used to produce energy, but the recent research indicate that it has a great potential in enhancing biopolymer properties. The biocarbon-biopolymer composite could provide a much needed fully biodegradable solution. This would be especially interesting in agricultural and horticultural applications, since biocarbon has been found to be effective at retaining water and water-soluble nutrients and to increase micro-organism activity in soil. Biocarbon-biocomposite may also be used for other markets, where biodegradability is essential, including packaging and disposable consumer articles. The BioADD consortium consists of 9 industrial partners, a branch organization and 3 research partners. The partner companies form a complementary team, including biomass providers, pyrolysis technology manufacturers and companies producing products to the relevant markets of horticulture, agriculture and packaging. For each of the companies the successful result from the project will lead to concrete business opportunities. The support of Avans, University of Groningen and Eindhoven University of Technology is essential in developing the know-how and the first product development making the innovation possible.
Structural colour (SC) is created by light interacting with regular nanostructures in angle-dependent ways resulting in vivid hues. This form of intense colouration offers commercial and industrial benefits over dyes and other pigments. Advantages include durability, efficient use of light, anti-fade properties and the potential to be created from low cost materials (e.g. cellulose fibres). SC is widely found in nature, examples include butterflies, squid, beetles, plants and even bacteria. Flavobacterium IR1 is a Gram-negative, gliding bacterium isolated from Rotterdam harbour. IR1 is able to rapidly self-assemble into a 2D photonic crystal (a form of SC) on hydrated surfaces. Colonies of IR1 are able to display intense, angle-dependent colours when illuminated with white light. The process of assembly from a disordered structure to intense hues, that reflect the ordering of the cells, is possible within 10-20 minutes. This bacterium can be stored long-term by freeze drying and then rapidly activated by hydration. We see these properties as suiting a cellular reporter system quite distinct from those on the market, SC is intended to be “the new Green Fluorescent Protein”. The ability to understand the genomics and genetics of SC is the unique selling point to be exploited in product development. We propose exploiting SC in IR1 to create microbial biosensors to detect, in the first instance, volatile compounds that are damaging to health and the environment over the long term. Examples include petroleum or plastic derivatives that cause cancer, birth defects and allergies, indicate explosives or other insidious hazards. Hoekmine, working with staff and students within the Hogeschool Utrecht and iLab, has developed the tools to do these tasks. We intend to create a freeze-dried disposable product (disposables) that, when rehydrated, allow IR1 strains to sense and report multiple hazardous vapours alerting industries and individuals to threats. The data, visible as brightly coloured patches of bacteria, will be captured and quantified by mobile phone creating a system that can be used in any location by any user without prior training. Access to advice, assay results and other information will be via a custom designed APP. This work will be performed in parallel with the creation of a business plan and market/IP investigation to prepare the ground for seed investment. The vision is to make a widely usable series of tests to allow robust environmental monitoring for all to improve the quality of life. In the future, this technology will be applied to other areas of diagnostics.
The COVID19 pandemic highlighted the vulnerability in supply chain networks in the healthcare sector and the tremendous waste problem of disposable healthcare products, such as isolation gowns. Single-use disposable isolation gowns cause great ecological impact. Reusable gowns can potentially reduce climate impacts and improve the resilience of healthcare systems by ensuring a steady supply in times of high demand. However, scaling reusable, circular isolation gowns in healthcare organizations is not straightforward. It is impeded by economic barriers – such as servicing costs for each use – and logistic and hygiene barriers, as processes for transport, storage and safety need to be (re)designed. Healthcare professionals (e.g. purchasing managers) lack complete information about social, economic and ecological costs, the true cost of products, to make informed circular purchasing decisions. Additionally, the residual value of materials recovered from circular products is overlooked and should be factored into purchasing decisions. To facilitate the transition to circular procurement in healthcare, purchasing managers need more fine-grained, dynamic information on true costs. Our RAAK Publiek proposal (MODLI) addresses a problem that purchasing managers face – making purchasing decisions that factor in social, economic and ecological costs and future benefits from recovered materials. Building on an existing consortium that developed a reusable and recyclable isolation gown, we design and develop an open-source decision-support tool to inform circular procurement in healthcare organizations and simulate various purchasing options of non-circular and circular products, including products from circular cascades. Circular procurement is considered a key driver in the transition to a circular economy as it contributes to closing energy and material loops and minimizes negative impacts and waste throughout entire product lifecycles. MODLI aims to support circular procurement policies in healthcare organizations by providing dynamic information for circular procurement decision making.
