Development of a novel highly conductive and flexible cotton yarn for wearable pH sensor technology

Smith, Rachel E.; Totti, Stella; Velliou, Eirini; Campagnolo, Paola; Hingley‐Wilson, Suzie; Ward, Neil; Varcoe, John R.; Crean, Carol

doi:10.1016/j.snb.2019.01.088

Cited by 47 publications

(27 citation statements)

References 39 publications

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“…Finally, the biocompatibility of highly conductive and exible cotton bers coated with poly(3,4-ethylenedioxythiophene)poly(styrene sulfonate) (PEDOT:PSS) and MWCNTs was investigated to determine its feasibility of use as a pH sensor for realtime wound and skin analysis. 149 The solid-state wearable pH sensor achieved rapid and selective Nernstian responses (À61 AE 2 mV pH À1 ) over a wide pH range from 2-12. Furthermore, the deposition of pH sensitive PANi yielded electrodes with significant biocompatible and antibacterial properties.…”

Section: Biocompatibilitymentioning

confidence: 98%

“…The PANi, which has previously been demonstrated as a biocompatible polymer, enveloped the PEDOT-MWCNT-cotton bers and acted as protective casing to subdue the toxicity of pristine CNTs and maintain cellular viability. 135,149,248,249 The continued growth and success of the wearable device industry will ultimately provide global access to advanced technologies. Nonetheless, a gap in the overall safety coverage of wearable devices remains, one that could expose users to unnecessary risks.…”

Section: Biocompatibilitymentioning

confidence: 99%

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Flexible potentiometric pH sensors for wearable systems

2020

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Section: Biocompatibilitymentioning

confidence: 98%

Section: Biocompatibilitymentioning

confidence: 99%

Flexible potentiometric pH sensors for wearable systems

2020

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“…Sensors2020, 20, x; doi: FOR PEER REVIEW www.mdpi.com/journal/sensors deposition that produced electrodes with significant biocompatibility and antibacterial properties that could be manufactured (alongside quasi-reference electrodes) into wearable solid-state pH sensors and achieved wearable pH sensors [98].…”

Section: Sensorsmentioning

confidence: 99%

“…They demonstrated sensing capacity even for small moisture variations. Smith et al developed a wearable pH sensor cotton yarn in PEDOT:PSS and multi-walled carbon nanotubes followed by PANI deposition that produced electrodes with significant biocompatibility and antibacterial properties that could be manufactured (alongside quasi-reference electrodes) into wearable solid-state pH sensors and achieved wearable pH sensors [98].…”

Section: Energy Harvesting and Storagementioning

confidence: 99%

PEDOT:PSS-Based Conductive Textiles and Their Applications

Tseghai

Mengistie

Malengier

et al. 2020

Sensors

159

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The conductive polymer complex poly (3,4-ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS) is the most explored conductive polymer for conductive textiles applications. Since PEDOT:PSS is readily available in water dispersion form, it is convenient for roll-to-roll processing which is compatible with the current textile processing applications. In this work, we have made a comprehensive review on the PEDOT:PSS-based conductive textiles, methods of application onto textiles and their applications. The conductivity of PEDOT:PSS can be enhanced by several orders of magnitude using processing agents. However, neat PEDOT:PSS lacks flexibility and strechability for wearable electronics applications. One way to improve the mechanical flexibility of conductive polymers is making a composite with commodity polymers such as polyurethane which have high flexibility and stretchability. The conductive polymer composites also increase attachment of the conductive polymer to the textile, thereby increasing durability to washing and mechanical actions. Pure PEDOT:PSS conductive fibers have been produced by solution spinning or electrospinning methods. Application of PEDOT:PSS can be carried out by polymerization of the monomer on the fabric, coating/dyeing and printing methods. PEDOT:PSS-based conductive textiles have been used for the development of sensors, actuators, antenna, interconnections, energy harvesting, and storage devices. In this review, the application methods of PEDOT:SS-based conductive polymers in/on to a textile substrate structure and their application thereof are discussed.

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“…CNT-coated cotton was applied to pH, K + and NH4 + sensing [3]. This paper describes recent research at Surrey developing pH and lithium drug sensors, based on cotton threads [4,5]. Epidermal pH gives an indication of the skin physiology and the state of wound healing.…”

Section: Introductionmentioning

confidence: 99%

Thread-Based Sensors

Smith

Sweilam

Varcoe

et al. 2020

International Conference on the Challenges, Opportunities, Innovations and Applications in Electronic Textiles

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Fiber and textile-based chemical sensors are emerging tools which target minimally invasive monitoring. Fiber-shaped electrodes are a versatile design for wearable applications since the fiber architecture allows for straightforward integration into textiles facilitating the principle of “wear-and-forget”. Skin and wound care would benefit from real-time pH monitoring, which can indicate wound health and the physiological condition of the skin. A further application of wearable chemical sensors is therapeutic drug monitoring.

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Development of a novel highly conductive and flexible cotton yarn for wearable pH sensor technology

Cited by 47 publications

References 39 publications

Flexible potentiometric pH sensors for wearable systems

Flexible potentiometric pH sensors for wearable systems

PEDOT:PSS-Based Conductive Textiles and Their Applications

Thread-Based Sensors

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