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Although recovery of fibers from used textiles with retained material quality is desired, separation of individual components from polymer blends used in today's complex textile materials is currently not available at viable scale. Biotechnology could provide a solution to this pressing problem by enabling selective depolymerization of recyclable fibers of natural and synthetic origin, to isolate constituents or even recover monomers. We compiled experimental data for biocatalytic polymer degradation with a focus on synthetic polymers with hydrolysable links and calculated conversion rates to explore this path The analysis emphasizes that we urgently need major research efforts: beyond cellulose‐based fibers, biotechnological‐assisted depolymerization of plastics so far only works for polyethylene terephthalate, with degradation of a few other relevant synthetic polymer chains being reported. In contrast, by analyzing market data and emerging trends for synthetic fibers in the textile industry, in combination with numbers from used garment collection and sorting plants, it was shown that the use of difficult‐to‐recycle blended materials is rapidly growing. If the lack of recycling technology and production trend for fiber blends remains, a volume of more than 3400 Mt of waste will have been accumulated by 2030. This work highlights the urgent need to transform the textile industry from a biocatalytic perspective.
Christina Jönsson; Ren Wei; Antonino Biundo; Johan Landberg; Lisa Schwarz Bour; Fabio Pezzotti; Andreea Toca; Les M. Jacques; Uwe T. Bornscheuer; Per‐Olof Syrén. Biocatalysis in the Recycling Landscape for Synthetic Polymers and Plastics towards Circular Textiles. ChemSusChem 2021, 1 .
AMA StyleChristina Jönsson, Ren Wei, Antonino Biundo, Johan Landberg, Lisa Schwarz Bour, Fabio Pezzotti, Andreea Toca, Les M. Jacques, Uwe T. Bornscheuer, Per‐Olof Syrén. Biocatalysis in the Recycling Landscape for Synthetic Polymers and Plastics towards Circular Textiles. ChemSusChem. 2021; ():1.
Chicago/Turabian StyleChristina Jönsson; Ren Wei; Antonino Biundo; Johan Landberg; Lisa Schwarz Bour; Fabio Pezzotti; Andreea Toca; Les M. Jacques; Uwe T. Bornscheuer; Per‐Olof Syrén. 2021. "Biocatalysis in the Recycling Landscape for Synthetic Polymers and Plastics towards Circular Textiles." ChemSusChem , no. : 1.
Consumer products such as clothes and footwear sometimes contain chemical substances with properties that pose a risk to human health and the environment. These substances, restricted by law or company policy, are in focus for chemicals management processes by textile retailers. However, complex and non-transparent supply chains, and limited chemical knowledge, makes chemicals management challenging. Therefore, a function-based approach for life cycle management (LCM) of chemicals was developed, based on results of previous projects and evaluated using a two-step Delphi process. The resulting approach aims to help retailers identify and substitute hazardous substances in products, and consists of three parts: (i) a function-based chemicals management concept model for different levels of chemical information within the supply chain, (ii) tools for non-chemists which explain chemical information, and (iii) a continuous provision of knowledge to stakeholders (e.g., retailers) in a network. This approach is successfully implemented by over 100 retailers in the Nordic countries, providing the textile industry with practical and robust tools to manage and substitute hazardous chemicals in products and production processes. We conclude that the developed approach provides an explicit link, communication, and knowledge sharing between actors in the supply chain, which has proven important in chemicals LCM.
Sandra Roos; Stefan Posner; Christina Jönsson; Elisabeth Olsson; Hanna Nilsson-Lindén; Steffen Schellenberger; Mikael Larsson; Anne-Charlotte Hanning; Rickard Arvidsson. A Function-Based Approach for Life Cycle Management of Chemicals in the Textile Industry. Sustainability 2020, 12, 1273 .
AMA StyleSandra Roos, Stefan Posner, Christina Jönsson, Elisabeth Olsson, Hanna Nilsson-Lindén, Steffen Schellenberger, Mikael Larsson, Anne-Charlotte Hanning, Rickard Arvidsson. A Function-Based Approach for Life Cycle Management of Chemicals in the Textile Industry. Sustainability. 2020; 12 (3):1273.
Chicago/Turabian StyleSandra Roos; Stefan Posner; Christina Jönsson; Elisabeth Olsson; Hanna Nilsson-Lindén; Steffen Schellenberger; Mikael Larsson; Anne-Charlotte Hanning; Rickard Arvidsson. 2020. "A Function-Based Approach for Life Cycle Management of Chemicals in the Textile Industry." Sustainability 12, no. 3: 1273.
With increasing interest in reducing fossil fuel emissions, more and more development is focused on electric mobility. For electric vehicles, the main challenge is the mass of the batteries, which significantly increase the mass of the vehicles and limits their range. One possible concept to solve this is incorporating structural batteries; a structural material that both stores electrical energy and carries mechanical load. The concept envisions constructing the body of an electric vehicle with this material and thus reducing the need for further energy storage. This research is investigating a future structural battery that is incorporated in the roof of an electric vehicle. The structural battery is replacing the original steel roof of the vehicle, and part of the original traction battery. The environmental implications of this structural battery roof are investigated with a life cycle assessment, which shows that a structural battery roof can avoid climate impacts in substantive quantities. The main emissions for the structural battery stem from its production and efforts should be focused there to further improve the environmental benefits of the structural battery. Toxicity is investigated with a novel chemical risk assessment from a life cycle perspective, which shows that two chemicals should be targeted for substitution.
Mats Zackrisson; Christina Jönsson; Wilhelm Johannisson; Kristin Fransson; Stefan Posner; Dan Zenkert; Göran Lindbergh. Prospective Life Cycle Assessment of a Structural Battery. Sustainability 2019, 11, 5679 .
AMA StyleMats Zackrisson, Christina Jönsson, Wilhelm Johannisson, Kristin Fransson, Stefan Posner, Dan Zenkert, Göran Lindbergh. Prospective Life Cycle Assessment of a Structural Battery. Sustainability. 2019; 11 (20):5679.
Chicago/Turabian StyleMats Zackrisson; Christina Jönsson; Wilhelm Johannisson; Kristin Fransson; Stefan Posner; Dan Zenkert; Göran Lindbergh. 2019. "Prospective Life Cycle Assessment of a Structural Battery." Sustainability 11, no. 20: 5679.
To achieve sustainable development goals, it is essential to include the industrial system. There are sufficient numbers of tools and methods for measuring, assessing and improving the quality, productivity and efficiency of production, but the number of tools and methods for environmental initiatives on the shop floor is rather low. Incorporating environmental considerations into production and performance management systems still generally involves a top-down approach aggregated for an entire manufacturing plant. Green lean studies have been attempting to fill this gap to some extent, but the lack of detailed methodologies and practical tools for environmental manufacturing improvement on the shop floor is still evident. This paper reports on the application of four environmental assessment tools commonly used among Swedish manufacturing companies—Green Performance Map (GPM), Environmental Value Stream Mapping (EVSM), Waste Flow Mapping (WFM), and Life Cycle Assessment (LCA)—to help practitioners and scholars to understand the different features of each tool, so in turn the right tool(s) can be selected according to particular questions and the industrial settings. Because there are some overlap and differences between the tools and a given tool may be more appropriate to a situation depending on the question posed, a combination of tools is suggested to embrace different types of data collection and analysis to include different environmental impacts for better prioritization and decision-making.
Sasha Shahbazi; Martin Kurdve; Mats Zackrisson; Christina Jönsson; Anna Runa Kristinsdottir. Comparison of Four Environmental Assessment Tools in Swedish Manufacturing: A Case Study. Sustainability 2019, 11, 2173 .
AMA StyleSasha Shahbazi, Martin Kurdve, Mats Zackrisson, Christina Jönsson, Anna Runa Kristinsdottir. Comparison of Four Environmental Assessment Tools in Swedish Manufacturing: A Case Study. Sustainability. 2019; 11 (7):2173.
Chicago/Turabian StyleSasha Shahbazi; Martin Kurdve; Mats Zackrisson; Christina Jönsson; Anna Runa Kristinsdottir. 2019. "Comparison of Four Environmental Assessment Tools in Swedish Manufacturing: A Case Study." Sustainability 11, no. 7: 2173.
Investigations of metal ecotoxicity in life cycle assessment (LCA) and life cycle impact assessment (LCIA) are becoming important tools for evaluating the environmental impact of a product or process. There is, however, improvement needed for LCIA of metal ecotoxicity in order to make this assessment more relevant and robust. In this work, three issues within the LCIA of metal ecotoxicity are investigated, mainly focusing on topics related to stainless steel manufacturing. The first issue is the importance of considering regional water chemistry when constructing the characterization factor (CF). A model freshwater of relevance for stainless steel manufacturing in a region of Sweden was created with chemistry different from available options. The second issue is related to the lack of consideration on changes in speciation of Cr(VI) in freshwater for a given emission, as Cr(VI) to some extent will be reduced to Cr(III). Two new options are suggested based on relationships between the Cr(VI)–total Cr ratio as a way to improve the relevancy of LCIA for Cr(VI) in freshwater. The last issue is how to treat metal release from slags in LCIA. Metal release from slags was shown to vary significantly between different ways of modelling slag emissions (differences in total metal content, slag leaching tests, estimated emissions to groundwater).
Jonas Hedberg; Kristin Fransson; Sonja Prideaux; Sandra Roos; Christina Jönsson; Inger Odnevall Wallinder. Improving the Life Cycle Impact Assessment of Metal Ecotoxicity: Importance of Chromium Speciation, Water Chemistry, and Metal Release. Sustainability 2019, 11, 1655 .
AMA StyleJonas Hedberg, Kristin Fransson, Sonja Prideaux, Sandra Roos, Christina Jönsson, Inger Odnevall Wallinder. Improving the Life Cycle Impact Assessment of Metal Ecotoxicity: Importance of Chromium Speciation, Water Chemistry, and Metal Release. Sustainability. 2019; 11 (6):1655.
Chicago/Turabian StyleJonas Hedberg; Kristin Fransson; Sonja Prideaux; Sandra Roos; Christina Jönsson; Inger Odnevall Wallinder. 2019. "Improving the Life Cycle Impact Assessment of Metal Ecotoxicity: Importance of Chromium Speciation, Water Chemistry, and Metal Release." Sustainability 11, no. 6: 1655.
Toxicity impacts of chemicals have only been covered to a minor extent in LCA studies of textile products. The two main reasons for this exclusion are (1) the lack of life cycle inventory (LCI) data on use and emissions of textile-related chemicals, and (2) the lack of life cycle impact assessment (LCIA) data for calculating impacts based on the LCI data. This paper addresses the first of these two. In order to facilitate the LCI analysis for LCA practitioners, an inventory framework was developed. The framework builds on a nomenclature for textile-related chemicals which was used to build up a generic chemical product inventory for use in LCA of textiles. In the chemical product inventory, each chemical product and its content was modelled to fit the subsequent LCIA step. This means that the content and subsequent emission data are time-integrated, including both original content and, when relevant, transformation products as well as impurities. Another key feature of the framework is the modelling of modularised process performance in terms of emissions to air and water. The inventory framework follows the traditional structure of LCI databases to allow for use together with existing LCI and LCIA data. It contains LCI data sets for common textile processes (unit processes), including use and emissions of textile-related chemicals. The data sets can be used for screening LCA studies and/or, due to their modular structure, also modified. Modified data sets can be modelled from recipes of input chemicals, where the chemical product inventory provides LCA-compatible content and emission data. The data sets and the chemical product inventory can also be used as data collection templates in more detailed LCA studies. A parallel development of a nomenclature for and acquisition of LCI data resulted in the creation of a modularised inventory framework. The framework advances the LCA method to provide results that can guide towards reduced environmental impact from textile production, including also the toxicity impacts from textile chemicals. The framework can be used for guiding stakeholders of the textile sector in macro-level decisions regarding the effectiveness of different impact reduction interventions, as well as for guiding on-site decisions in textile manufacturing.
Sandra Roos; Christina Jönsson; Stefan Posner; Rickard Arvidsson; Magdalena Svanström. An inventory framework for inclusion of textile chemicals in life cycle assessment. The International Journal of Life Cycle Assessment 2018, 24, 838 -847.
AMA StyleSandra Roos, Christina Jönsson, Stefan Posner, Rickard Arvidsson, Magdalena Svanström. An inventory framework for inclusion of textile chemicals in life cycle assessment. The International Journal of Life Cycle Assessment. 2018; 24 (5):838-847.
Chicago/Turabian StyleSandra Roos; Christina Jönsson; Stefan Posner; Rickard Arvidsson; Magdalena Svanström. 2018. "An inventory framework for inclusion of textile chemicals in life cycle assessment." The International Journal of Life Cycle Assessment 24, no. 5: 838-847.
With an increasing societal need for temporary buildings, while construction industry faces resource and time efficiency challenges, factory assembly of modular buildings can be a solution. This case study at a start-up company uses experiences from assembly system design and eco-design literature to propose green lean design principles to be used in the design and development of building modules and their assembly stations. The eco-design strategy wheel is used as a basis and adapted for the assessment of green and lean building manufacturing.
Martin Kurdve; Jutta Hildenbrand; Christina Jönsson. Design for green lean building module production - Case study. Procedia Manufacturing 2018, 25, 594 -601.
AMA StyleMartin Kurdve, Jutta Hildenbrand, Christina Jönsson. Design for green lean building module production - Case study. Procedia Manufacturing. 2018; 25 ():594-601.
Chicago/Turabian StyleMartin Kurdve; Jutta Hildenbrand; Christina Jönsson. 2018. "Design for green lean building module production - Case study." Procedia Manufacturing 25, no. : 594-601.
The topic of shedding of micro-sized polymeric particles, so called microplastics, from textiles has been covered by an increasing number of studies over the past years. However, the methods with which the shedding of microplastics from textiles has been measured so far has shown a large variation. Consequently, the results regarding the amount of shed particles also vary, from 120 to 728,289 particles from similar garments in recent studies. This article presents research enabling for identification of whether the shedding of microplastics from different types of fabric was dependent on construction parameters. As none of the methods in the existing literature could be used for evaluating shedding of microplastics from textiles, a method was developed for this purpose. The resulting final method is described in this paper as well as the work with minimizing the error sources and consequently the standard deviation of the results through selection of material samples, equipment and procedure for sample preparation, washing, filtering the washing water and analyzing the shed microplastics. Comparing the environmental load of different garments, or identifying improvement possibilities in garment construction are two examples of how the method can be utilized.
Christina Jönsson; Oscar Levenstam Arturin; Anne-Charlotte Hanning; Rebecka Landin; Emma Holmström; Sandra Roos. Microplastics Shedding from Textiles—Developing Analytical Method for Measurement of Shed Material Representing Release during Domestic Washing. Sustainability 2018, 10, 2457 .
AMA StyleChristina Jönsson, Oscar Levenstam Arturin, Anne-Charlotte Hanning, Rebecka Landin, Emma Holmström, Sandra Roos. Microplastics Shedding from Textiles—Developing Analytical Method for Measurement of Shed Material Representing Release during Domestic Washing. Sustainability. 2018; 10 (7):2457.
Chicago/Turabian StyleChristina Jönsson; Oscar Levenstam Arturin; Anne-Charlotte Hanning; Rebecka Landin; Emma Holmström; Sandra Roos. 2018. "Microplastics Shedding from Textiles—Developing Analytical Method for Measurement of Shed Material Representing Release during Domestic Washing." Sustainability 10, no. 7: 2457.
The chemical recycling of cellulosic fibres may represent a next-generation fibre–fibre recycling system for cotton textiles, though remaining challenges include how to accommodate fibre blends, dyes, wrinkle-free finishes, and other impurities from finishing. These challenges may disrupt the regeneration process steps and reduce the fibre quality. This study examines the impact on regenerated viscose fibre properties of a novel alkaline/acid bleaching sequence to strip reactive dyes and dimethyloldihydroxyethyleneureas (DMDHEU) wrinkle-free finish from cotton textiles. Potentially, such a bleaching sequence could advantageously be integrated into the viscose process, reducing the costs and environmental impact of the product. The study investigates the spinning performance and mechanical properties (e.g., tenacity and elongation) of the regenerated viscose fibres. The alkaline/acid bleaching sequence was found to strip the reactive dye and DMDHEU wrinkle-free finish from the cotton fabric, so the resulting pulp could successfully be spun into viscose fibres, though the mechanical properties of these fibres were worse than those of commercial viscose fibres. This study finds that reactive dyes and DMDHEU wrinkle-free finish affect the viscose dope quality and the regeneration performance. The results might lead to progress in overcoming quality challenges in cellulosic chemical recycling.
Helena Wedin; Ellinor Niit; Zaheer Ahmad Mansoor; Anna Rúna Kristinsdottir; Hanna De La Motte; Christina Jonsson; Åsa Östlund; Christofer Lindgren. Preparation of Viscose Fibres Stripped of Reactive Dyes and Wrinkle-Free Crosslinked Cotton Textile Finish. Journal of Polymers and the Environment 2018, 26, 3603 -3612.
AMA StyleHelena Wedin, Ellinor Niit, Zaheer Ahmad Mansoor, Anna Rúna Kristinsdottir, Hanna De La Motte, Christina Jonsson, Åsa Östlund, Christofer Lindgren. Preparation of Viscose Fibres Stripped of Reactive Dyes and Wrinkle-Free Crosslinked Cotton Textile Finish. Journal of Polymers and the Environment. 2018; 26 (9):3603-3612.
Chicago/Turabian StyleHelena Wedin; Ellinor Niit; Zaheer Ahmad Mansoor; Anna Rúna Kristinsdottir; Hanna De La Motte; Christina Jonsson; Åsa Östlund; Christofer Lindgren. 2018. "Preparation of Viscose Fibres Stripped of Reactive Dyes and Wrinkle-Free Crosslinked Cotton Textile Finish." Journal of Polymers and the Environment 26, no. 9: 3603-3612.
A major factor in the continued deterioration of the global environment is unsustainable management of resources that includes the type and quantity of resources consumed and manufactured as well as the subsequent generation and treatment of wasted materials. Improved material efficiency (ME) in manufacturing is key to reducing resource consumption levels and improving waste management initiatives. However, ME must be measured, and related goals must be broken down into performance indicators for manufacturing companies. This paper aims to improve ME in manufacturing using a structured model for ME performance measurements. We present a set of ME key performance indicators (ME-KPIs) at the individual company and lower operational levels based on empirical studies and a structured literature review. Our empirical findings are based on data collected on the performance indicators and material and waste flows of nine manufacturing companies located in Sweden. The proposed model categorizes ME-KPIs into the following categories: productive input materials, auxiliary input materials, output products, and residual output materials. These categories must be measured equally to facilitate the measurement, assessment, improvement and reporting of material consumption and waste generation in a manufacturing context. Required qualities for ME-KPI suggested in literature are also discussed, and missing indicators are identified. Most of the identified ME-KPIs measure quality- and cost-related factors, while end-of-life scenarios, waste segregation and the environmental effects of waste generation and material consumption are not equally measured. Additionally, ME-KPIs must also be connected to pre-determined goals and that defining or revising ME-KPIs requires communication with various external and internal actors to increase employees’ awareness and engagement.
Sasha Shahbazi; Christina Jönsson; Magnus Wiktorsson; Martin Kurdve; Marcus Bjelkemyr. Material efficiency measurements in manufacturing: Swedish case studies. Journal of Cleaner Production 2018, 181, 17 -32.
AMA StyleSasha Shahbazi, Christina Jönsson, Magnus Wiktorsson, Martin Kurdve, Marcus Bjelkemyr. Material efficiency measurements in manufacturing: Swedish case studies. Journal of Cleaner Production. 2018; 181 ():17-32.
Chicago/Turabian StyleSasha Shahbazi; Christina Jönsson; Magnus Wiktorsson; Martin Kurdve; Marcus Bjelkemyr. 2018. "Material efficiency measurements in manufacturing: Swedish case studies." Journal of Cleaner Production 181, no. : 17-32.
Life cycle assessments (LCAs) of textile products which do not include the use and emission of textile chemicals, such as dyes, softeners and water-repellent agents, will give non-comprehensive results for the toxicity impact potential. The purpose of this paper is twofold: (1) to provide a set of characterisation factors (CFs) for some of the most common textile chemicals and (2) to propose a data source selection strategy in order to increase transparency when calculating new CFs. A set of 72 common textile-related substances was matched with the USEtox 2.01, USEtox 1.01 and the COSMEDE databases in order to investigate coverage and coherence. For the 25 chemicals that did not already have established CFs in any of these databases, new CFs were calculated. A data source selection strategy was developed and followed in order to ensure consistency and transparency, and USEtox 2.01 was used for calculations. The parameters that caused the most uncertainty were identified during the modelling and strategies for handling them were developed. Of the 72 textile-related substances, 48 already had calculated recommended or indicative CFs in existing databases, which showed good coherence. The main uncertainty identified during the calculation of 25 new CFs was the selection of input data regarding toxicity and degradation in water. However, for substances such as per- and polyfluoroalkyl substances (PFAS), the acid dissociation constant (pKa) and partitioning coefficients (Kow and KOC) also require special considerations. Other input parameters had less than one order of magnitude impact on the CF result for essentially all substances. The paper presents a strategy for how to provide a complete set of toxicity CFs for a given list of substances. In addition, such a set of CFs for common textile-related substances is presented. The data source selection strategy provides a structured and transparent way of calculating additional CFs for textile chemicals with USEtox. Consequently, this study can help future LCA studies to provide relevant guidance towards environmentally benign chemical management in the textile industry.
Sandra Roos; Hanna Holmquist; Christina Jönsson; Rickard Arvidsson. USEtox characterisation factors for textile chemicals based on a transparent data source selection strategy. The International Journal of Life Cycle Assessment 2017, 23, 890 -903.
AMA StyleSandra Roos, Hanna Holmquist, Christina Jönsson, Rickard Arvidsson. USEtox characterisation factors for textile chemicals based on a transparent data source selection strategy. The International Journal of Life Cycle Assessment. 2017; 23 (4):890-903.
Chicago/Turabian StyleSandra Roos; Hanna Holmquist; Christina Jönsson; Rickard Arvidsson. 2017. "USEtox characterisation factors for textile chemicals based on a transparent data source selection strategy." The International Journal of Life Cycle Assessment 23, no. 4: 890-903.
Pelle Mellin; Christina Jönsson; Malin Åkermo; Patrik Fernberg; Eva Nordenberg; Håkan Brodin; Annika Strondl. Nano-sized by-products from metal 3D printing, composite manufacturing and fabric production. Journal of Cleaner Production 2016, 139, 1224 -1233.
AMA StylePelle Mellin, Christina Jönsson, Malin Åkermo, Patrik Fernberg, Eva Nordenberg, Håkan Brodin, Annika Strondl. Nano-sized by-products from metal 3D printing, composite manufacturing and fabric production. Journal of Cleaner Production. 2016; 139 ():1224-1233.
Chicago/Turabian StylePelle Mellin; Christina Jönsson; Malin Åkermo; Patrik Fernberg; Eva Nordenberg; Håkan Brodin; Annika Strondl. 2016. "Nano-sized by-products from metal 3D printing, composite manufacturing and fabric production." Journal of Cleaner Production 139, no. : 1224-1233.
Improved material efficiency is key to improving the circular economy and capturing value in industry. Material efficiency reduces the generation of industrial waste, the extraction and consumption of resources, and energy demands and carbon emissions. However, material efficiency in the manufacturing sector, as a means of improving the recyclability, reusability, reduction and prevention of industrial waste, is little understood. This study aims to investigate, on a micro-level, further material efficiency improvement opportunities, barriers and strategies in selected manufacturing companies in Sweden, focusing on increasing waste segregation into high quality circulated raw material. Improvement opportunities at large global manufacturing companies are investigated; barriers hindering material efficiency improvement are identified and categorized at two levels; and strategies that have been deployed at manufacturing companies are reviewed. Empirical findings reveal (1) further potential for improving material efficiency through higher segregation of residual material from mixed and low quality fractions (on average, 26% of the content of combustible waste, in weight, was plastics; 8% and 6% were paper and cardboard, respectively); (2) the most influential barriers are within budgetary, information, management, employee, engineering, and communication clusters; (3) a lack of actual material efficiency strategy implementation in the manufacturing companies. According to our analysis, the majority of barriers are internal and originate within the manufacturing companies, therefore they can be managed (and eradicated if possible) with sufficient resources in terms of man hours, education and investment, better operational and environmental (waste) management, better internal communication and information sharing, and deployment of material efficiency strategies.
Sasha Shahbazi; Magnus Wiktorsson; Martin Kurdve; Christina Jönsson; Marcus Bjelkemyr. Material efficiency in manufacturing: swedish evidence on potential, barriers and strategies. Journal of Cleaner Production 2016, 127, 438 -450.
AMA StyleSasha Shahbazi, Magnus Wiktorsson, Martin Kurdve, Christina Jönsson, Marcus Bjelkemyr. Material efficiency in manufacturing: swedish evidence on potential, barriers and strategies. Journal of Cleaner Production. 2016; 127 ():438-450.
Chicago/Turabian StyleSasha Shahbazi; Magnus Wiktorsson; Martin Kurdve; Christina Jönsson; Marcus Bjelkemyr. 2016. "Material efficiency in manufacturing: swedish evidence on potential, barriers and strategies." Journal of Cleaner Production 127, no. : 438-450.
In this study, we have asked respondents to rank ten different waste fractions that are both common in manufacturing industry and easily recognizable. The purpose of the study has been to clarify to what extent individuals are able to identify the waste fractions that are most important to recycle from an environmental perspective. The individuals’ perception has then been correlated with a life cycle assessment of the ten materials. In addition, the respondents were also asked to rank the fractions according to cost. The results show that metals are consistently considered most important to recycle, and plastics are commonly among the top five amongst the ten waste fractions together with glass. The cellulose based fractions, cotton, and compost are commonly rated low. In addition, there is a perceived correlation between the environmental and economic impact.
Marcus Bjelkemyr; Sasha Shahbazi; Christina Jönsson; Magnus Wiktorsson. Individuals’ Perception of Which Materials are Most Important to Recycle. Security Education and Critical Infrastructures 2015, 723 -729.
AMA StyleMarcus Bjelkemyr, Sasha Shahbazi, Christina Jönsson, Magnus Wiktorsson. Individuals’ Perception of Which Materials are Most Important to Recycle. Security Education and Critical Infrastructures. 2015; ():723-729.
Chicago/Turabian StyleMarcus Bjelkemyr; Sasha Shahbazi; Christina Jönsson; Magnus Wiktorsson. 2015. "Individuals’ Perception of Which Materials are Most Important to Recycle." Security Education and Critical Infrastructures , no. : 723-729.
The applicability of life-cycle assessment (LCA) for the textile industry is discussed with a special focus on environmental impact from chemicals. Together with issues of water depletion and energy use, the use of chemicals and their emissions are important environmental considerations for textile products. However, accounting for chemicals is a weak point in LCA methodology and practice. Two research questions were investigated in a case study of hospital garments: 1) whether LCA adds value to assessments of the chemical performance of textile products, and 2) whether inclusion of toxicity issues in LCA affects environmental performance rankings for textile products. It is concluded that the quantitative and holistic tool LCA is useful for environmental decision makers in the textile industry, and becomes more effective when chemical impacts are included. A flexible way forward is demonstrated to meet the challenge of accounting for chemicals in LCAs of textile products.
Sandra Roos; Stefan Posner; Christina Jönsson; Gregory Peters. Is Unbleached Cotton Better Than Bleached? Exploring the Limits of Life-Cycle Assessment in the Textile Sector. Clothing and Textiles Research Journal 2015, 33, 231 -247.
AMA StyleSandra Roos, Stefan Posner, Christina Jönsson, Gregory Peters. Is Unbleached Cotton Better Than Bleached? Exploring the Limits of Life-Cycle Assessment in the Textile Sector. Clothing and Textiles Research Journal. 2015; 33 (4):231-247.
Chicago/Turabian StyleSandra Roos; Stefan Posner; Christina Jönsson; Gregory Peters. 2015. "Is Unbleached Cotton Better Than Bleached? Exploring the Limits of Life-Cycle Assessment in the Textile Sector." Clothing and Textiles Research Journal 33, no. 4: 231-247.
Several new plasma protein biomarkers have been associated with increased risk of cardiovascular events. It would be of great value if sets of these markers could be measured in a multiplexed format at point-of-care settings. A major challenge is the extremely wide concentration range in which different plasma biomarkers are present. Two promising biomarkers for cardiac risk prediction are C-reactive protein (CRP) and N-terminal pro-brain natriuretic peptide (NTproBNP). The concentrations of these markers can differ by more than six orders of magnitude. Here we present a chip-based multiplexed assay for CRP and NTproBNP. The high-concentration analyte, CRP, is analyzed in a competitive format, whereas the low-concentration analyte, NTproBNP, is analyzed in a sandwich format. This allows concurrent measurement of the two analytes in a single multiplexed assay. The dynamic ranges for the two assays were optimized to match the relevant serum concentration ranges; thus, no dilutions were needed. Both assays exhibit good precision (5-15% in the clinically relevant concentration ranges), and the limit of detection for the NTproBNP assay was 5 ng/L. Patient plasma samples were used for comparison with clinical methods, resulting in coefficients of determination (R(2)) of 0.9762 and 0.9606 for NTproBNP and CRP, respectively.
Jonas Melin; Gerd Rundström; Christer Peterson; Jimmy Bakker; Brian D. MacCraith; Mike Read; Ove Öhman; Christina Jönsson. A multiplexed point-of-care assay for C-reactive protein and N-terminal pro-brain natriuretic peptide. Analytical Biochemistry 2011, 409, 7 -13.
AMA StyleJonas Melin, Gerd Rundström, Christer Peterson, Jimmy Bakker, Brian D. MacCraith, Mike Read, Ove Öhman, Christina Jönsson. A multiplexed point-of-care assay for C-reactive protein and N-terminal pro-brain natriuretic peptide. Analytical Biochemistry. 2011; 409 (1):7-13.
Chicago/Turabian StyleJonas Melin; Gerd Rundström; Christer Peterson; Jimmy Bakker; Brian D. MacCraith; Mike Read; Ove Öhman; Christina Jönsson. 2011. "A multiplexed point-of-care assay for C-reactive protein and N-terminal pro-brain natriuretic peptide." Analytical Biochemistry 409, no. 1: 7-13.
The prognosis for patients suffering from cardiovascular and many other diseases can be substantially improved if diagnosed at an early stage. High performance diagnostic testing using disposable microfluidic chips can provide a platform for realizing this vision. Åmic AB (Uppsala, Sweden) has developed a new microfluidic test chip for sandwich immunoassays fabricated by injection molding of the cycloolefin-copolymer Zeonor™. A highly ordered array of micropillars within the fluidic chip distributes the sample solution by capillary action. Since wetting of the pillar array surface is the only driving force for liquid distribution precise control of the surface chemistry is crucial. In this work we demonstrate a novel protocol for surface hydrophilization and antibody immobilization on cycloolefin-copolymer test chips, based on direct silanisation of the thermoplastic substrate. Dextran is subsequently covalently coupled to amino groups, thus providing a coating with a low contact angle suitable for antibody immobilization. The contact angle of dextran coated chips is stable for at least two months, which enables production of large batches that can be stored for extended periods of time. We demonstrate the utility of the presented platform and surface chemistry in a C-reactive protein assay with a detection limit of 2.6 ng ml−1, a dynamic range of 102 and a coefficient of variance of 15%.
Christina Jönsson; Magnus Aronsson; Gerd Rundström; Christer Pettersson; Ib Mendel-Hartvig; Jimmy Bakker; Erik Martinsson; Bo Liedberg; Brian MacCraith; Ove Öhman; Jonas Melin. Silane–dextran chemistry on lateral flow polymer chips for immunoassays. Lab on a Chip 2008, 8, 1191 -1197.
AMA StyleChristina Jönsson, Magnus Aronsson, Gerd Rundström, Christer Pettersson, Ib Mendel-Hartvig, Jimmy Bakker, Erik Martinsson, Bo Liedberg, Brian MacCraith, Ove Öhman, Jonas Melin. Silane–dextran chemistry on lateral flow polymer chips for immunoassays. Lab on a Chip. 2008; 8 (7):1191-1197.
Chicago/Turabian StyleChristina Jönsson; Magnus Aronsson; Gerd Rundström; Christer Pettersson; Ib Mendel-Hartvig; Jimmy Bakker; Erik Martinsson; Bo Liedberg; Brian MacCraith; Ove Öhman; Jonas Melin. 2008. "Silane–dextran chemistry on lateral flow polymer chips for immunoassays." Lab on a Chip 8, no. 7: 1191-1197.
Christina Jönsson; Stina Lundgren; Stephen J. Haswell; Christina Moberg. Asymmetric catalysis in a micro reactor—Ce, Yb and Lu catalysed enantioselective addition of trimethylsilyl cyanide to benzaldehyde. Tetrahedron 2004, 60, 10515 -10520.
AMA StyleChristina Jönsson, Stina Lundgren, Stephen J. Haswell, Christina Moberg. Asymmetric catalysis in a micro reactor—Ce, Yb and Lu catalysed enantioselective addition of trimethylsilyl cyanide to benzaldehyde. Tetrahedron. 2004; 60 (46):10515-10520.
Chicago/Turabian StyleChristina Jönsson; Stina Lundgren; Stephen J. Haswell; Christina Moberg. 2004. "Asymmetric catalysis in a micro reactor—Ce, Yb and Lu catalysed enantioselective addition of trimethylsilyl cyanide to benzaldehyde." Tetrahedron 60, no. 46: 10515-10520.
Terminal acetylenes containing hydroxy and carboxylic acid groups were subjected to Sonogashira coupling with 4-bromo-2,6-bis[(R)-4-phenyloxazolin-2-yl]pyridine and the resulting pybox derivatives were immobilized on Tentagel resins. Ytterbium(III) chloride complexes of the polymeric ligands catalyzed the addition of trimethylsilyl cyanide to benzaldehyde with 80−81% ee. The ligands were reused more than 30 times without any loss in selectivity or activity, and the metal complexes could be recovered and reused at least four times, although with slightly decreasing activity.
Stina Lundgren; Serghey Lutsenko; Christina Jönsson; Christina Moberg. Polymer-Supported Pyridine−Bis(oxazoline). Application to Ytterbium-Catalyzed Silylcyanation of Benzaldehyde. Organic Letters 2003, 5, 3663 -3665.
AMA StyleStina Lundgren, Serghey Lutsenko, Christina Jönsson, Christina Moberg. Polymer-Supported Pyridine−Bis(oxazoline). Application to Ytterbium-Catalyzed Silylcyanation of Benzaldehyde. Organic Letters. 2003; 5 (20):3663-3665.
Chicago/Turabian StyleStina Lundgren; Serghey Lutsenko; Christina Jönsson; Christina Moberg. 2003. "Polymer-Supported Pyridine−Bis(oxazoline). Application to Ytterbium-Catalyzed Silylcyanation of Benzaldehyde." Organic Letters 5, no. 20: 3663-3665.
Metal complexes of chiral oxazoline derivatives immobilized on soluble as well as insoluble supports serve as versatile asymmetric catalysts in a variety of applications. In a few cases recovery and reuse of the chiral ligands have been achieved.
Christina Jönsson; Kristina Hallman; Helene Andersson; Göran Stemme; Michael Malkoch; Eva Malmström; Anders Hult; Christina Moberg. Immobilized oxazoline-containing Ligands in asymmetric catalysis—a review. Bioorganic & Medicinal Chemistry Letters 2002, 12, 1857 -1861.
AMA StyleChristina Jönsson, Kristina Hallman, Helene Andersson, Göran Stemme, Michael Malkoch, Eva Malmström, Anders Hult, Christina Moberg. Immobilized oxazoline-containing Ligands in asymmetric catalysis—a review. Bioorganic & Medicinal Chemistry Letters. 2002; 12 (14):1857-1861.
Chicago/Turabian StyleChristina Jönsson; Kristina Hallman; Helene Andersson; Göran Stemme; Michael Malkoch; Eva Malmström; Anders Hult; Christina Moberg. 2002. "Immobilized oxazoline-containing Ligands in asymmetric catalysis—a review." Bioorganic & Medicinal Chemistry Letters 12, no. 14: 1857-1861.