TEMPO-oxidized cellulose nanofibre (TOCN) films and composites with PVOH as sensitive dielectrics for microwave humidity sensing

Eyebe, Guy François Valery Ayissi; Bideau, Benoît; Loranger, Éric; Domingue, Frédéric

doi:10.1016/j.snb.2019.04.070

Cited by 17 publications

(4 citation statements)

References 38 publications

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“…Cellulose is the most widely distributed and abundant polysaccharide in nature. According to different functional requirements, various methods can be implemented to obtain different types of functional cellulose such as regenerated cellulose, hydroxyethyl cellulose, cellulose nanofibers (CNF), and oxidized nanocellulose. , Among them, 2,2,6,6-tetramethylpiperidinyl-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCN) are a kind of green-friendly one-dimensional nanomaterial with high aspect ratio and (a average widths of about ∼3 nm, lengths of approximately 1–2 μm) large specific surface area and a large number of carboxylates on the surface. − It can not only be used as a polymer substrate with good hydrophilicity, flexibility, and excellent biocompatibility but also be adopted as a one-dimensional reinforcing filler , to improve the mechanical properties of composite materials. These advantages make TOCN show great potential in the field of electronic skin.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Multifunctional Electronic Skin Based on Nanocellulose/MXene Composite Films with Good Electromagnetic Shielding Biocompatible Antibacterial Properties

et al. 2021

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Electronic skin has aroused extensive research interest due to high similarity with human skin. Realizing a multifunctional electronic skin that is highly consistent with skin functions and endowed with more other functions is now a more urgent need and important challenge. Here, we use 2,2,6,6tetramethylpiperidinyl-1-oxyl (TEMPO)-oxidized cellulose nanofibril (TOCN) dispersion and highly conductive Ti 3 C 2 T X dispersion to prepare TOCN/Ti 3 C 2 T X composite film through vacuum-assisted filtration. The obtained composite film imitating the nacre-like lamellar structure of natural shells has good mechanical properties (124.6 MPa of tensile strength). Meanwhile, the composite film also showed excellent electromagnetic shielding performance (36 dB), biocompatibility, and antibacterial properties. In addition, the piezoresistive sensor assembled from the composite film exhibited a high sensitivity (11.6 kPa −1 ), fast response and recovery time (≤10 ms), ultralow monitoring limit (0.2 Pa), and long-term stability (>10 000 cycles). It also could detect human daily activities such as finger bent, chewing, and so on.

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Section: Introductionmentioning

confidence: 99%

Highly Sensitive Multifunctional Electronic Skin Based on Nanocellulose/MXene Composite Films with Good Electromagnetic Shielding Biocompatible Antibacterial Properties

et al. 2021

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“…This means that achieving a maximum sensory response requires the use of paper with maximum thickness, capable of adsorbing sufficient moisture to significantly change the dielectric constant. For example, Eyebe et al [121,122] fabricated a series of microwave humidity sensors using CNFs (see Table 11). Tanguy et al [123] developed a microwave resonator (OMR) humidity sensor using a conductive PEDOT:PSS polymer deposited on a flexible film of cellulose nanofibrils (CNFs).…”

Section: Microwave Pb Humidity Sensorsmentioning

confidence: 99%

Paper-Based Humidity Sensors as Promising Flexible Devices, State of the Art, Part 2: Humidity-Sensor Performances

et al. 2023

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This review article covers all types of paper-based humidity sensor, such as capacitive, resistive, impedance, fiber-optic, mass-sensitive, microwave, and RFID (radio-frequency identification) humidity sensors. The parameters of these sensors and the materials involved in their research and development, such as carbon nanotubes, graphene, semiconductors, and polymers, are comprehensively detailed, with a special focus on the advantages/disadvantages from an application perspective. Numerous technological/design approaches to the optimization of the performances of the sensors are considered, along with some non-conventional approaches. The review ends with a detailed analysis of the current problems encountered in the development of paper-based humidity sensors, supported by some solutions.

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“…The CNF/graphene nanopapers can potentially be used for applications toward biologically inspired sensors. Ayissi Eyebe et al [73] utilized TEMPO-oxidized cellulose nanofibers (TOCNs) films as dielectrics for humidity sensing, since the dielectric constant of TOCNs films increases with humidity. Due to the hydrophilicity of TOCNs films, water molecules easily adsorb onto its surface.…”

Section: Humidity Sensormentioning

confidence: 99%

Ultrasensitive Physical, Bio, and Chemical Sensors Derived from 1‐, 2‐, and 3‐D Nanocellulosic Materials

Dai

Wang

Zou

et al. 2020

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Sensors are of increasing interest since they can be applied to daily life in different areas from various industrial sectors. As a natural nanomaterial, nanocellulose plays a vital role in the development of novel sensors, particularly in the context of constructing multidimensional architectures. This review summarizes the utilization of nanocellulose including cellulose nanofibers, cellulose nanocrystals, and bacterial cellulose for sensor design, mainly focusing on the influence of nanocellulose on the sensing performance of these sensors. Special attention is paid to nanocellulose in different forms (1D, 2D, and 3D) to highlight the impact of nanocellulose constructed structures. The aim is to provide a critical review on the most recent progress (especially after 2017) related to nanocellulose‐containing sensors, since there are significantly increasing research activities in this area. Moreover, the outlook for the development of nanocellulose‐containing sensors is also provided at the end of this work.

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TEMPO-oxidized cellulose nanofibre (TOCN) films and composites with PVOH as sensitive dielectrics for microwave humidity sensing

Cited by 17 publications

References 38 publications

Highly Sensitive Multifunctional Electronic Skin Based on Nanocellulose/MXene Composite Films with Good Electromagnetic Shielding Biocompatible Antibacterial Properties

Highly Sensitive Multifunctional Electronic Skin Based on Nanocellulose/MXene Composite Films with Good Electromagnetic Shielding Biocompatible Antibacterial Properties

Paper-Based Humidity Sensors as Promising Flexible Devices, State of the Art, Part 2: Humidity-Sensor Performances

Ultrasensitive Physical, Bio, and Chemical Sensors Derived from 1‐, 2‐, and 3‐D Nanocellulosic Materials

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