Electrically Conductive Coatings for Fiber-Based E-Textiles

Chatterjee, Kony; Tabor, Jordan; Ghosh, Tushar K.

doi:10.3390/fib7060051

Cited by 86 publications

(61 citation statements)

References 161 publications

(365 reference statements)

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“…Here you can see the great work of twisting the optical fiber and weaving it to a textile, all for transport and protection, as it provides an ingenious way to move it and place it in a textile garment to be in constant contact with the sample patient. This is a clear example of how you could make different textile garments depending on what you want to monitor and the part of the human body from which you want to sample data [ 85 ].…”

Section: Figurementioning

confidence: 99%

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Fiber Optic Sensors for Vital Signs Monitoring. A Review of Its Practicality in the Health Field

et al. 2021

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Vital signs not only reflect essential functions of the human body but also symptoms of a more serious problem within the anatomy; they are well used for physical monitoring, caloric expenditure, and performance before a possible symptom of a massive failure—a great variety of possibilities that together form a first line of basic diagnosis and follow-up on the health and general condition of a person. This review includes a brief theory about fiber optic sensors’ operation and summarizes many research works carried out with them in which their operation and effectiveness are promoted to register some vital sign(s) as a possibility for their use in the medical, health care, and life support fields. The review presents methods and techniques to improve sensitivity in monitoring vital signs, such as the use of doping agents or coatings for optical fiber (OF) that provide stability and resistance to the external factors from which they must be protected in in vivo situations. It has been observed that most of these sensors work with single-mode optical fibers (SMF) in a spectral range of 1550 nm, while only some work in the visible spectrum (Vis); the vast majority, operate through fiber Bragg gratings (FBG), long-period fiber gratings (LPFG), and interferometers. These sensors have brought great advances to the measurement of vital signs, especially with regard to respiratory rate; however, many express the possibility of monitoring other vital signs through mathematical calculations, algorithms, or auxiliary devices. Their advantages due to miniaturization, immunity to electromagnetic interference, and the absence of a power source makes them truly desirable for everyday use at all times.

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Section: Figurementioning

confidence: 99%

“…Reproduced from Refs. [ 19 , 25 , 28 , 32 , 39 , 40 , 56 , 85 , 94 , 95 , 96 , 106 , 107 ] Sensors Journal, Materials Journal, Applied Sciences Journal, Fibers Journal and Journal of Functional Biomaterials of the MDPI. Reproduced from Refs.…”

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confidence: 99%

Fiber Optic Sensors for Vital Signs Monitoring. A Review of Its Practicality in the Health Field

et al. 2021

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“…The development of technologies for the production of new two-dimensional materials and their application for conductive textiles are important scientific and practical tasks [ 4 ]. In particular, there are many research articles on the use of carbon nanotubes (CNTs) [ 5 ], conducting polymers [ 6 ], metal nanofibers [ 7 ] and nanoparticles [ 8 ], graphene, and its derivatives [ 9 ]. They can be used for functionalization of both natural and artificial fibers.…”

Section: Introductionmentioning

confidence: 99%

Electrical Properties of Textiles Treated with Graphene Oxide Suspension

et al. 2021

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Two-dimensional nanomaterials such as graphene can provide various functional properties to textiles, which have great potential in sportswear, healthcare etc. In this study, the properties of nylon and cotton-based electronic textiles coated with reduced graphene oxide are investigated. After reduction of graphene oxide coating in hydrazine vapor, e-textiles with a resistance of ~350 Ω/sq for nylon, and ~1 kΩ/sq for cotton were obtained. Cyclic mechanical bending tests of samples showed that the resistance increases during bending up to 10–20%. The use of bovine serum albumin as an adhesive layer improved the wash stability for samples with nylon up to 40 washing cycles. The use of BF-6 glue as a protective layer reduced changes in resistance during bending, and improved wash stability of cotton samples. It was shown that the resistance of the obtained samples is sensitive to changes in temperature and humidity. In addition, obtained e-textiles attached to a person’s wrist were able to measure heart rate. Thus, the obtained electronic textiles based on cotton and nylon coated with reduced graphene oxide demonstrates good characteristics for use as sensors for monitoring vital signs.

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“…The industrial and scientific community has recently been showing a growing interest in the field of conductive textiles that, in convergence with electronics, is leading to the development of smart or electronic textiles (E-Textiles), which could be used for diverse application fields, e.g., in healthcare, security, entertainment, space exploration, sports and consumer fitness fields, etc. [ 1 , 2 ], with the aim to serve and facilitate our lives. Up to now, numerous approaches have been proposed to obtain conductive textiles, namely, weaving and knitting of conductive yarns into the textile, sewing and embroidering of threads on the surface, electroless metal deposition, incorporation of metal wires in the fabric, coating or printing of conductive polymers and inks on the surface, etc.…”

Section: Introductionmentioning

confidence: 99%

Tailoring of Durable Conductive and UV-Shielding Properties on Cotton and Polyester Fabrics by PEDOT:PSS Screen-Printing

Ojstršek

Gorgieva

2020

Polymers

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In the present study, cotton (Co) and polyester (PES) fabrics were screen-printed with a conductive poly3,4-ethylenedioxythiophene:polystyrene sulfonate (PEDOT:PSS) printing paste along with a commercially-available screen-printing binder (SFXC) or waterborne polyurethane resin (WPU), in order to enhance wash and wear durability, and to improve some functional properties, without essentially influencing the physical–mechanical properties of the base material, as well as the introduced fabrics’ conductivity. The application of a conductive polymer coating reduced transmittance in the whole UV region drastically, indicating good UV-shielding ability in the treated fabrics. Moreover, the employed binders improved the fabrics’ protection against harmful solar UV radiation significantly, depending on the type of fibre and binder. Furthermore, the SFXC binder intensified the hydrophobicity of Co as compared to the WPU binder, and, on the other hand, WPU reduced the hydrophobicity of PES. Finally, the screen-printed fabrics were washed up to 20 cycles and rubbed up to 20,000 cycles, and characterised by means of mass loss determination and electrical resistivity measurement. Both binders enlarged polymer stability against the effect of washing and rubbing, depending on the number of cycles, the type and amount of employed binder, the type of fibres, and the thickness and uniformity of coatings.

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Electrically Conductive Coatings for Fiber-Based E-Textiles

Cited by 86 publications

References 161 publications

Fiber Optic Sensors for Vital Signs Monitoring. A Review of Its Practicality in the Health Field

Fiber Optic Sensors for Vital Signs Monitoring. A Review of Its Practicality in the Health Field

Electrical Properties of Textiles Treated with Graphene Oxide Suspension

Tailoring of Durable Conductive and UV-Shielding Properties on Cotton and Polyester Fabrics by PEDOT:PSS Screen-Printing

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