Bacterial cellulose hydrogel for sensors

Pan, Xiaosen; Li, Jie; Ma, Ning; Ma, Xiaojun; Gao, Meng

doi:10.1016/j.cej.2023.142062

Cited by 93 publications

(31 citation statements)

References 159 publications

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“…Different from cellulose nanocrystal or fiber from plant, intrinsic features such as: ≈100% cellulose content, high length to diameter ratio and higher crystallinity, enable these bio‐synthesized cellulose with the excellent mechanical properties and good water retention which can be ideal matrix for separators in aqueous separator. [ 19 ] And Figure S1 (Supporting Information) shows the typical failure of zinc ion batteries with zinc anode because of the dendrite penetration across the separator during charging/discharging cycles, which highlights the significance of constructing advanced separators for dendrite suppression. Followed by post‐purification process, a typical oxidation treatment under 2,2,6,6‐tetramethylpiperidinyloxy‐based system is used to introduce carbonylation side groups in cellulose molecular unit.…”

Section: Resultsmentioning

confidence: 99%

Loosening Zinc Ions from Separator Boosts Stable Zn Plating/Striping Behavior for Aqueous Zinc Ion Batteries

Zhang,

Liu,

et al. 2023

Advanced Energy Materials

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Aqueous zinc ion batteries are attracting broad interest in stationary energy storage where low cost, robust security, and satisfactory capacity matter most. However, metal zinc anodes suffer from destructive dendrite issues during repeated charging/discharging process, decreasing the cycle life of batteries. Herein, smoother zinc plating/striping behaviors are achieved by group modification in the structural unit of the polymer separator. Experimental results and theoretical simulations reveal that the polymer skeleton can release zinc ion more easily when modified with carbonylation side groups and contribute to much faster zinc ion transfer capability. Typically, symmetric Zn cells with a thin thickness separator of 21 µm exhibit ultralong cycle life over 2800 h at 1 mA cm−2 within 1 mAh cm−2 and 300 h under a high current density of 5 mA cm−2 within high areal capacity of 3 mAh cm−2. Full cells using a sodium vanadium oxide cathode also show stable reversible charging/discharging performance after 2000 cycles at 3 A g−1. This work is expected to inspire promising strategies in molecular design in polymeric separator toward stabilizing metal anodes beyond this anode itself.

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Section: Resultsmentioning

confidence: 99%

Loosening Zinc Ions from Separator Boosts Stable Zn Plating/Striping Behavior for Aqueous Zinc Ion Batteries

Zhang,

Liu,

et al. 2023

Advanced Energy Materials

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“…For colorimetric SO 2 sensors used in food packaging, it is essential that the sensors not only exhibit high sensitivity to the embedded gas but also meet safety and health requirements. Natural biosources, such as natural dyes extracted from plants, are preferred over synthetic materials for food sensor fabrication due to their safe, low-cost, and environmentally friendly characteristics. , Herein, we developed a flexible, stable, highly sensitive colorimetric SO 2 detection label (SDL) based on natural petunia dye (PD) for real-time gas sensing and food-quality prediction (Figure ). As the concentration of SO 2 increases from 0 to 25 ppm, the as-prepared indicator gradually fades from red to colorless with the total color difference (Δ E ) modulation reaching up to 74.8 and detection limit down to 1.52 ppm.…”

Section: Introductionmentioning

confidence: 99%

A Biomass-Based Colorimetric Sulfur Dioxide Gas Sensor for Smart Packaging

et al. 2023

Self Cite

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Sulfur dioxide (SO2) gas, which can effectively prohibit the growth of pathogenic microorganisms, has been internationally used in commercial food packaging to maintain high-quality food and reduce the incidence of foodborne illnesses. However, the current mainstream methods for SO2 detection are either large and expensive instruments or synthesized chemical-based labels, which are not suitable for large-scale gas detection in food packaging. Recently, we discovered that petunia dye (PD), which is extracted from natural petunia flowers, demonstrates a highly sensitive colorimetric response to SO2 gas with its total color difference (ΔE) modulation reaching up to 74.8 and detection limit down to 1.52 ppm. To apply the extracted petunia dye in smart packaging for real-time gas sensing and food-quality prediction, a flexible and freestanding PD-based SO2 detection label is prepared by incorporating PD in biopolymers and assembling the films through a layer-by-layer approach. The developed label is utilized to predict grapes’ quality and safety by monitoring the embedded SO2 gas concentration. The developed colorimetric SO2 detection label could potentially be used as an intelligent gas sensor for food status prediction in daily life, food storage, and supply chains.

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“…Bacterial cellulose (BC) is another kind of nanocelluloses with fibrous structure, which is synthesized by bacteria, instead of in plants. BC is free of hemicellulose and lignin and hence has a higher degree of crystallinity (about 70–90%) as compared to plant cellulose . Besides, it possesses a much higher aspect ratio (length- to -diameter ratio) than those of CNCs and CNFs, which means that the percolation threshold of BC in an aqueous suspension is very low due to the low loading level of the dilute- to -semiconcentrated regime transition .…”

Section: Introductionmentioning

confidence: 99%

“…Besides, it possesses a much higher aspect ratio (length- to -diameter ratio) than those of CNCs and CNFs, which means that the percolation threshold of BC in an aqueous suspension is very low due to the low loading level of the dilute- to -semiconcentrated regime transition . In other words, BC easily forms stable 3D networks in hydrogels at very low loadings . However, the studies on the BC-containing hydrogels are not as extensive as those of CNC- or CNF-containing hydrogels.…”

Section: Introductionmentioning

confidence: 99%

Crosslinking of Bacterial Cellulose toward Fabricating Ultrastretchable Hydrogels for Multiple Sensing with High Sensitivity

Jiang

Zhou

Tang

et al. 2023

ACS Sustainable Chem. Eng.

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Cellulose nanofibers are one of the most frequently used fillers for reinforcing hydrogels. The reinforcement, however, is commonly accompanied by the decrease of deformability. Inspired by the armor structured with overall flexible but locally rigid characteristics, we proposed a strategy of constructing chemical networks of bacterial cellulose (BC) in this work to improve the overall mechanical performance of hydrogels. The PAM hydrogels with borax-crosslinked BC nanofibers were prepared. The BC networks are multiscaled, and different levels of structures play different roles. As the flexible networks, the crosslinked BC endows the hydrogels with superior stretchability (7710%) and improves anticutting property as well as crack growth resistance. The crosslinks composed of boronic ester bonds act as “sacrificial bonds”, improving the fatigue resistance to the cyclic tensile with large strain (500%). The mechanical strength of the hydrogels is also significantly enhanced due to the reinforcement role of BC nanofibers. Moreover, the remained sodium ions and borate ions give the hydrogels good conductivity and decreased freezing point. Accordingly, the as-prepared flexible sensor has superior sensitivity (Gauge factor 10.1 for stretching) with satisfactory environmental adaptability. This work proposes an effective strategy of structural regulation for the cellulosic particle-containing hydrogel to improve the overall performance.

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Bacterial cellulose hydrogel for sensors

Cited by 93 publications

References 159 publications

Loosening Zinc Ions from Separator Boosts Stable Zn Plating/Striping Behavior for Aqueous Zinc Ion Batteries

Loosening Zinc Ions from Separator Boosts Stable Zn Plating/Striping Behavior for Aqueous Zinc Ion Batteries

A Biomass-Based Colorimetric Sulfur Dioxide Gas Sensor for Smart Packaging

Crosslinking of Bacterial Cellulose toward Fabricating Ultrastretchable Hydrogels for Multiple Sensing with High Sensitivity

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