Exploring the role of chitosan in affecting the adhesive, rheological and antimicrobial properties of carboxymethyl cellulose composite hydrogels

Feng, Sirui; Liu, Feng; Guo, Yunsi; Ye, Mingqiao; He, Jiewang; Zhou, Huiying; Liu, Liping; Cai, Lei; Zhang, Yue; Li, Ran

doi:10.1016/j.ijbiomac.2021.08.217

Cited by 23 publications

(8 citation statements)

References 33 publications

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“…The consistency coefficient (k) reveals the relationship between the shear stress and shear rate. As shown in Figure 3c, the n values of CMC/CNCs and SA/CNCs solutions were less than 1, indicating pseudoplastic fluids characteristic, 26 that is, the lower the value of n, the greater the shear-thinning behavior. The n values decreased and the k values increased for CMC, indicating the increasing degree of shear thinning behavior with increasing CNCs content, which were consistent with the viscosity (Figure 2a).…”

Section: Effect Of Cncs On the Flow Ability Of Cmc And Sa Solutionsmentioning

confidence: 95%

The impact of cellulose nanocrystals on the rheology of sodium carboxymethyl cellulose and sodium alginate

Cui

et al. 2022

J of Applied Polymer Sci

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At present, the physical properties of hydrocolloids limit their wide application in food industry. To improve the viscoelasticity of sodium carboxymethyl cellulose (CMC) and sodium alginate (SA), cellulose nanocrystals (CNCs) were added into CMC and SA solutions to regulate the non‐Newtonian flow behaviors of composite systems under different conditions. The rheological properties of CMC/CNCs or SA/CNCs composite systems were studied using steady rheological measurements, dynamic rheological measurements, and creep compliance experiments. It was found that the viscosities and elastic modulus of CMC were positively related to CNCs concentrations in acid, neutral or alkaline environments. When the CNCs content was higher than 5% at pH 9.45, the gelation of CMC was accelerated, and the gelation strength was increased. The damping factor of SA decreased with increasing calcium ions contents. When calcium ions content was higher than 0.07%, the damping factor of SA was less than 1, indicating that SA system achieved gel transformation. The effect of CNCs on the apparent viscosity, shear stress, and storage modulus of CMC was more obvious in comparison to that of SA. Overall, as a rheology modifier, CNCs can minimize the contents of food colloids in any functional fluid while maintaining the thickening rheology.

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Section: Effect Of Cncs On the Flow Ability Of Cmc And Sa Solutionsmentioning

confidence: 95%

The impact of cellulose nanocrystals on the rheology of sodium carboxymethyl cellulose and sodium alginate

Cui

et al. 2022

J of Applied Polymer Sci

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“…Based on the chitosan quaternary ammonium salt, carboxymethyl cellulose is chosen as the second network of hydrogels. Carboxymethyl cellulose (CMC) [54,55] is also a natural polymer derived from cellulose by introducing carboxymethyl (-CH 2 COOH), which has unique biodegradability, biocompatibility, good film-forming properties, and pH sensitivity. [25] More importantly, when carboxymethyl cellulose is used as the second network of hydrogel, it is more effective in enhancing the mechanical properties of hydrogel by cross-linking with chitosan quaternary ammonium salt through ionic bonding.…”

Section: Introductionmentioning

confidence: 99%

Carbon Quantum Dot/Chitosan‐Derived Hydrogels with Photo‐stress‐pH Multiresponsiveness for Wearable Sensors

Wei

et al. 2023

Macromol. Rapid Commun.

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In recent years, hydrogels have attracted extensive attention in smart sensing owing to their biocompatibility and high elasticity. However, it is still a challenge to develop hydrogels with excellent multiple responsiveness for smart wearable sensors. In this paper, a facile synthesis of carbon quantum dots (CQDs)-doped cross-linked chitosan quaternary/carboxymethylcellulose hydrogels (CCCDs) is presented. Designing of dual network hydrogels decorated with CQDs provides abundant crosslinking and improves the mechanical properties of the hydrogels. The hydrogel-based strain sensor exhibits excellent sensitivity (gauge factor: 9.88), linearity (R 2 : 0.97), stretchable ability (stress: 0.67 MPa; strain: 404%), good cyclicity, and durability. The luminescent properties are endowed by the CQDs further broaden the application of hydrogels for realizing flexible electronics. More interestingly, the strain sensor based on CCCDs hydrogel demonstrates photo responsiveness (𝚫R/R 0 ≈20%) and pH responsiveness (pH range ≈4-7) performance. CCCDs hydrogels can be used for gesture recognition and light sensing switch. As a proof-of-concept, a smart wearable sensor is designed for monitoring human activities and detecting pH variation in human sweat during exercise. This study reveals new possibilities for further applications in wearable health monitoring.

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“…The sorption of copper and zinc has been studied by utilizing several adsorbents, such as activated carbon, bentonite, garden grass, chabazite (natural zeolite), rice husk ash, biomatrix from rice husk, lignite [9][10][11][12][13][14][15], humic acid, cellulose, modified palygorskite, modified Spirulina platensis, calcined horn core [16][17][18], diatomite, flax shive, waste activated sludge biosolid, and multiwall carbon nanotubes (CNTs) oxidized with nitric acid [19][20][21][22]. Nowadays, many researchers focus on the use of biopolymers for the treatment of drinking water since these materials are biodegradable and can be obtained from renewable sources [23]. Among the biopolymers, chitin and chitosan are very promising for wastewater remediation [24].…”

Section: Introductionmentioning

confidence: 99%

Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media

El-Soad

Lazzara

El‐Magied

et al. 2022

IJMS

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The modification of chitosan represents a challenging task in obtaining biopolymeric materials with enhanced removal capacity for heavy metals. In the present work, the adsorption characteristics of chitosan modified with carboxyl groups (CTS-CAA) towards copper (II) and zinc (II) ions have been tested. The efficacy of the synthesis of CTS-CAA has been evaluated by studying various properties of the modified chitosan. Specifically, the functionalized chitosan has been characterized by using several techniques, including thermal analyses (differential scanning calorimetry and thermogravimetry), spectroscopies (FT-IR, XRD), elemental analysis, and scanning electron microscopy. The kinetics and the adsorption isotherms of CTS-CAA towards both Cu (II) and Zn (II) have been determined in the aqueous solvent under variable pH. The obtained results have been analyzed by using different adsorption models. In addition, the experiments have been conducted at variable temperatures to explore the thermodynamics of the adsorption process. The regeneration of CTS-CAA has been investigated by studying the desorption process using different eluents. This paper reports an efficient protocol to synthesize chitosan-based material perspective as regenerative adsorbents for heavy metals. Hitoshi Sashiwa

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Exploring the role of chitosan in affecting the adhesive, rheological and antimicrobial properties of carboxymethyl cellulose composite hydrogels

Cited by 23 publications

References 33 publications

The impact of cellulose nanocrystals on the rheology of sodium carboxymethyl cellulose and sodium alginate

The impact of cellulose nanocrystals on the rheology of sodium carboxymethyl cellulose and sodium alginate

Carbon Quantum Dot/Chitosan‐Derived Hydrogels with Photo‐stress‐pH Multiresponsiveness for Wearable Sensors

Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media

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