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Publications (10 of 65) Show all publications
Kahoush, M., Behary, N., Cayla, A. & Nierstrasz, V. (2018). Bio-Fenton and Bio-Electro-Fenton as sustainable methods for degrading organic pollutants in wastewater. Process Biochemistry, 64C, 237-247
Open this publication in new window or tab >>Bio-Fenton and Bio-Electro-Fenton as sustainable methods for degrading organic pollutants in wastewater
2018 (English)In: Process Biochemistry, ISSN 1359-5113, E-ISSN 1873-3298, Vol. 64C, p. 237-247Article in journal (Refereed) Epub ahead of print
Abstract [en]

In this paper, an overview of the bio-Fenton and bio-electro-Fenton processes for sustainable wastewater treatment is provided. These two methods have been used in recent years to treat many kinds of persistent pollutants while maintaining the sustainability in materials and power consumption compared to conventional methods, through efficient eco-designed systems. The different kinds of electrodes used for the bio-electro-Fenton are reviewed, along with the influencing factors affecting the efficiency of these methods, and the different designs used to construct the reactors. Moreover, the various organic pollutants from industrial sources, like effluents from textile and pesticides facilities, treated using these processes are also reported. However, the main challenge facing these technologies is to improve their performance, stability and lifetime to achieve more sustainable and cost-effective wastewater treatment on pilot and large scales. Hence, future perspectives and trends are discussed to overcome the drawbacks of these methods.

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Bio-electro-Fenton, Electrodes, Microbial fuel cells, Environmental applications, Wastewater treatment
National Category
Environmental Biotechnology
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-12896 (URN)10.1016/j.procbio.2017.10.003 (DOI)
Projects
SMDTEX
Available from: 2017-10-23 Created: 2017-10-23 Last updated: 2017-12-19Bibliographically approved
Eutionnat-Diffo, P., Nierstrasz, V., Campagne, C., Zeng, X., Cayla, A., Guan, J. & Chen, Y. (2018). Correlation between heat transfer of polyester textiles and its adhesion with 3D-printed extruded thermoplastic filaments. In: IOP publishers (Ed.), 18th AUTEX World Textile Conference, June 20-22, 2018, Istanbul, Turkey: . Paper presented at 18th AUTEX World Textile Conference, June 20-22, 2018, Istanbul, Turkey (pp. 118-121). , Article ID 3132.
Open this publication in new window or tab >>Correlation between heat transfer of polyester textiles and its adhesion with 3D-printed extruded thermoplastic filaments
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2018 (English)In: 18th AUTEX World Textile Conference, June 20-22, 2018, Istanbul, Turkey / [ed] IOP publishers, 2018, p. 118-121, article id 3132Conference paper, Published paper (Refereed)
Abstract [en]

FDM technology used for printing functionalized layers on textiles brought new challenges such as the understanding and the improvement of the adhesion performance of the thermoplastic filaments on synthetic textile materials. In addition to the impact of printing parameters, the correlation between the heat transfer and structure of the textile material and the adhesion performance after varying printer platform temperature was an important parameter considered in this paper. A factorial design, using material density, direction, and structure and platform temperature as factors, was followed. 3D-printed materials made of PLA filaments deposited on polyester woven and knit materials were manufactured on a dual-head printer and their adhesion was measured according to DIN EN ISO 13937-2 and ISO 11339 and the heat transfer of the fabrics according to ASTM D4966-98, ISO 6330 and ISO 22007-2. The findings showed that the heat transfer and structure of textile materials affect the adhesion properties of the 3D-printed material.

Keywords
3D-printing, Fused Deposition Modelling (FDM), Polyester textile, PLA filament, Heat transfer, Thermal conductivity, Adhesion, Additive Manufacturing (AM)
National Category
Textile, Rubber and Polymeric Materials
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-14988 (URN)
Conference
18th AUTEX World Textile Conference, June 20-22, 2018, Istanbul, Turkey
Funder
EU, European Research Council
Available from: 2018-08-14 Created: 2018-08-14 Last updated: 2018-08-17Bibliographically approved
Yu, J. (2018). Digital inkjet functionalization of water-repellent textile for smart textile application. Journal of Materials Science
Open this publication in new window or tab >>Digital inkjet functionalization of water-repellent textile for smart textile application
2018 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803Article in journal (Refereed) Published
Abstract [en]

Digital inkjet printing is a production technology with high potential in resource efficient processes, which features both flexibility and productivity. In this research, waterborne, fluorocarbon-free ink containing polysiloxane in the form of micro-emulsion is formulated for the application of water-repellent sports- and work wear. The physicochemical properties of the ink such as surface tension, rheological properties and particle size are characterized, and thereafter inkjet printed as solid square pattern (10 × 10 cm) on polyester and polyamide 66 fabrics. The water contact angle (WCA) of the functional surfaces is increased from < 90° to ca. 140° after 10 inkjet printing passes. Moreover, the functional surface shows resistance to wash and abrasion. The WCA of functional surfaces is between 130° and 140° after 10 wash cycles, and is ca. 140° after 20000 revolutions of rubbing. The differences in construction of the textile as well as ink–filament interaction attribute to the different transportation behaviors of the ink on the textile, reflected in the durability of the functional layer on the textile. The functionalized textile preserves its key textile feature such as softness and breathability. Inkjet printing shows large potential in high-end applications such as customized functionalization of textiles in the domain of smart textiles.

National Category
Natural Sciences
Identifiers
urn:nbn:se:hb:diva-15019 (URN)10.1007/s10853-018-2521-z (DOI)000436424400046 ()2-s2.0-85048593407 (Scopus ID)
Funder
Knowledge Foundation, 20150040
Available from: 2018-08-24 Created: 2018-08-24 Last updated: 2018-08-27Bibliographically approved
Tadesse, M. G., Nierstrasz, V. & Yu, J. (2018). Effect of chemical concentration on the rheology of inkjet conductive inks. In: : . Paper presented at 18th World Textile Conference of Autex, Istanbul, 20-22 June, 2018.. Istanbul
Open this publication in new window or tab >>Effect of chemical concentration on the rheology of inkjet conductive inks
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Viscosity and surface tension are the fundamental rheological property of an ink for inkjet printing. In this work, we optimized the viscosity and surface tension of inkjet inks by varying the concentration of glycerol with water, PEDOT-PSS with glycerol and water, finally by adding the surfactant. The surface resistance of the sample was characterized by four-probe measurement principle. The change in volume of PEDOT-PSS in water, as well as the change in weight of glycerol in water has got a great influence on the viscosity on both temperature dependence and shear dependence behaviour of the ink solution. The surface tension of the solution changed from 37 to 28mN/m due to the addition of Triton. Varying the volume of PEDOT-PSS and the volume of glycerol in water has a great influence on the viscosity of the ink solution for inkjet printing. Viscosity drops from 12.5 to 9.5 mPa s with the addition of Triton at 25 oC. The PEDOT-PSS solution was found to be temperature dependence but not shear dependence as it is a Newtonian fluid. The sample was used to connect the light emitting diode (LED), and hence the electrical conductivity, with a surface resistance of 0.158 KΩ/square, was sufficient enough to give transfer current for LED lamp. The rheology of the inkjet ink is very critical for the successful droplet formation of the inkjet printing.

Place, publisher, year, edition, pages
Istanbul: , 2018
Keywords
shear rate, surface tension, surfactant, viscosity
National Category
Engineering and Technology
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-14990 (URN)
Conference
18th World Textile Conference of Autex, Istanbul, 20-22 June, 2018.
Projects
Quality inspection and evaluation of functional or smart textile fabric surface by skin contact mechanics
Available from: 2018-08-15 Created: 2018-08-15 Last updated: 2018-08-15Bibliographically approved
Biswas, T., Yu, J. & Nierstrasz, V. (2018). Functionalization of textiles with enzymes by inkjet printing. In: : . Paper presented at AUTEX 2018, Istanbul, June 20-22, 2018.
Open this publication in new window or tab >>Functionalization of textiles with enzymes by inkjet printing
2018 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

The catalytic activity of the enzymes can be introduced to textile surfaces for bio-sensing applications by immobilizing them through a resource-efficient deposition method such as inkjet printing [1]. Contrary to conventional dispensing methods, drop-on-demand inkjet printing can provide with high precision deposition of these enzymes along with flexibility for small-scale production [2]. To the best of our knowledge, studies on the inkjetting of enzymes are limited and often uses a modified/adapted commercial paper printer for jetting [3]. Additionally, the effect of ink formulation and printing condition variables on the activity of enzyme are not well explored. Many of such variables suggested for jetting of proteins [4] includes e.g. ink rheology, operating temperature, drop size retention, and the shear force acting on the ink. In our research effect of these variables are studied using a digital inkjet printer (Xennia Carnelian) with a Sapphire QS10 piezo-electric print head (Fujifilm Dimatix, USA). Lysozyme is used as a model enzyme for printing due to its well-known structure and catalytic mechanism. Effect of temperature and shear force development within the print head on lysozyme activity is investigated. Additionally, pre-treatment of the fabric to improve ink adhesion through various surface activation processes are studied. Finally, remaining activity of the printed enzymes over washing is evaluated to ensure the fastness property.

Acknowledgment

This research project is funded by University of Borås, Sweden.

References

[1]     Li J, Rossignol F, Macdonald J. Inkjet printing for biosensor fabrication: combining chemistry and technology for advanced manufacturing. Lab on a Chip 2015;15(12):2538-2558.

[2]     Nierstrasz V, Yu J, Seipel S. Towards more flexible, sustainable and energy-efficient textile functionalization processes: Digital inkjet in functional and smart textile production. In: 9th Aachen-Dresden International Textile Conference 2015; 2015.

[3]     Yamazoe H. Fabrication of protein micropatterns using a functional substrate with convertible protein-adsorption surface properties. J Biomed Mater Res A 2012;100(2):362-9.

[4]     Delaney JT, Smith PJ, Schubert US. Inkjet printing of proteins. Soft Matter 2009;5(24):4866-4877.

National Category
Engineering and Technology
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-14430 (URN)
Conference
AUTEX 2018, Istanbul, June 20-22, 2018
Available from: 2018-07-02 Created: 2018-07-02 Last updated: 2018-07-10Bibliographically approved
Dural-Erem, A., Biswas, T. & Nierstrasz, V. (2018). Incorporation of probiotics on textile surface by sol–gel coating. Journal of Industrial Textiles
Open this publication in new window or tab >>Incorporation of probiotics on textile surface by sol–gel coating
2018 (English)In: Journal of Industrial Textiles, ISSN 1528-0837, E-ISSN 1530-8057Article in journal (Refereed) Published
Abstract [en]

Development of biocide-based antimicrobial textiles is proving to be a concern for the economy, and more evidently, for the environment and health. On the contrary, probiotic (beneficial bacteria) can replace these traditional biocides in order to overcome the toxicity and resistance problems. This paper elaborates an adapted sol-gel coating process to embed such beneficial spores on the polyester woven surface, and their viability is studied along with the characterization of the physical properties of the coated fabric. The results illustrate the successful incorporation of the beneficial spores with an adequate number of living organisms (even after repeated washing cycles), sufficient tensile strength, and good abrasion resistance properties with the opportunity to improve surface wettability maintaining sufficient adhesion between the fibre and the coated layer.

Keywords
sol-gel, coating, probiotics, medical textiles, protective fabrics, industrial textiles
National Category
Engineering and Technology
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-15050 (URN)10.1177/1528083717750886 (DOI)2-s2.0-85042388919 (Scopus ID)
Available from: 2018-08-29 Created: 2018-08-29 Last updated: 2018-08-30Bibliographically approved
Seipel, S. & Yu, J. (2018). Inkjet printing and UV-LED curing of photochromic dyes for functional and smart textile applications. RSC Advances, 8(50), 28395-28404
Open this publication in new window or tab >>Inkjet printing and UV-LED curing of photochromic dyes for functional and smart textile applications
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2018 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 8, no 50, p. 28395-28404Article in journal (Refereed) Published
Abstract [en]

Health concerns as a result of harmful UV-rays drive the development of UV-sensors of different kinds. In this research, a UV-responsive smart textile is produced by inkjet printing and UV-LED curing of a specifically designed photochromic ink on PET fabric. This paper focuses on tuning and characterizing the colour performance of a photochromic dye embedded in a UV-curable ink resin. The influence of industrial fabrication parameters on the crosslinking density of the UV-resin and hence on the colour kinetics is investigated. A lower crosslinking density of the UV-resin increases the kinetic switching speed of the photochromic dye molecules upon isomerization. By introducing an extended kinetic model, which defines rate constants kcolouration, kdecayand kdecolouration, the colour performance of photochromic textiles can be predicted. Fabrication parameters present a flexible and fast alternative to polymer conjugation to control kinetics of photochromic dyes in a resin. In particular, industrial fabrication parameters during printing and curing of the photochromic ink are used to set the colour yield, colouration/decolouration rates and the durability, which are important characteristics towards the development of a UV-sensor for smart textile applications.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2018
Keywords
inkjet printing, UV curing, photochromic, smart textile, functional textile
National Category
Engineering and Technology Materials Engineering
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-14901 (URN)10.1039/C8RA05856C (DOI)
Available from: 2018-08-08 Created: 2018-08-08 Last updated: 2018-08-08Bibliographically approved
IYER, S. & Nierstrasz, V. (2018). Photoluminescent textile using biobased riboflavin derivative (FMN). In: : . Paper presented at 18th AUTEX World Textile Conference, Istanbul, June 20-22, 2018..
Open this publication in new window or tab >>Photoluminescent textile using biobased riboflavin derivative (FMN)
2018 (English)Conference paper, Oral presentation only (Other academic)
National Category
Textile, Rubber and Polymeric Materials
Identifiers
urn:nbn:se:hb:diva-14905 (URN)
Conference
18th AUTEX World Textile Conference, Istanbul, June 20-22, 2018.
Available from: 2018-08-08 Created: 2018-08-08 Last updated: 2018-08-09Bibliographically approved
Seipel, S., Yu, J., Periyasamy, A., Viková, M., Vik, M. & Nierstrasz, V. (2018). Resource-Efficient Production of a Smart Textile UV Sensor Using Photochromic Dyes: Characterization and Optimization. In: Prof. Dr. Yordan Kyosev, Prof. Dr. Boris Mahltig, Prof. Dr. Anne Schwarz-Pfeiffer (Ed.), Narrow and Smart Textiles: (pp. 251-257). Springer Publishing Company
Open this publication in new window or tab >>Resource-Efficient Production of a Smart Textile UV Sensor Using Photochromic Dyes: Characterization and Optimization
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2018 (English)In: Narrow and Smart Textiles / [ed] Prof. Dr. Yordan Kyosev, Prof. Dr. Boris Mahltig, Prof. Dr. Anne Schwarz-Pfeiffer, Springer Publishing Company, 2018, p. 251-257Chapter in book (Refereed)
Place, publisher, year, edition, pages
Springer Publishing Company, 2018
Keywords
UV curing, digital inkjet printing, smart textile, photochromic
National Category
Materials Engineering
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-13265 (URN)10.1007/978-3-319-69050-6 (DOI)978-3-319-69049-0 (ISBN)978-3-319-69050-6 (ISBN)
Available from: 2017-12-19 Created: 2017-12-19 Last updated: 2017-12-20Bibliographically approved
Tadesse Abate, M. & Nierstrasz, V. (2018). Supercritical CO2 technology for simultaneous dyeing and antimicrobial functionalization of PET fabrics. In: : . Paper presented at 18th AUTEX World Textile Conference, Istanbul, June 20-22, 2018.
Open this publication in new window or tab >>Supercritical CO2 technology for simultaneous dyeing and antimicrobial functionalization of PET fabrics
2018 (English)Conference paper, Oral presentation only (Other academic)
National Category
Textile, Rubber and Polymeric Materials
Identifiers
urn:nbn:se:hb:diva-14392 (URN)
Conference
18th AUTEX World Textile Conference, Istanbul, June 20-22, 2018
Available from: 2018-06-28 Created: 2018-06-28 Last updated: 2018-07-10Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-4369-9304

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