An injectable self-healing hydrogel-cellulose nanocrystals conjugate with excellent mechanical strength and good biocompatibility

Du, Wenbo; Deng, Amin; Guo, Juan; Chen, Jian; Li, Huaming; Gao, Yong

doi:10.1016/j.carbpol.2019.115084

Cited by 34 publications

(22 citation statements)

References 67 publications

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“…From EDX analysis ( Figure 2 b), CPNC3 revealed carbon and oxygen as the major elements in the composition, implying the typical characteristic of NCC structure. Additionally, none of the other impurities were traced in the analysis, and this evidenced the produced NCC particle was pure for the CPNC3 sample [ 24 , 25 ]. This was in line with the improvement of α-cellulose content (to about 80–85%) for NCCs sample treated with increased hydrolysis times, as shown in Table 1 .…”

Section: Resultsmentioning

confidence: 99%

“…A broad absorption peak at about 3494 cm −1 , representing the -OH vibration groups of cellulose, was observed in all samples. This peak was more intense from CPNC1 to CPNC3, indicating the cellulose order changed via the different hydrogen bonding interaction [ 24 ]. Meanwhile, another peak at around 2971 cm −1 was assigned to the C-H bending.…”

Section: Resultsmentioning

confidence: 99%

“…At beginning, each sample showed weight loss in the temperature profile of 80–130 °C as a result of the volatized water content [ 20 ]. Beyond 200 °C, the onset decomposition temperature was tremendously increased from CPNC1 (at 266.3 °C) to CPNC3 (at 324.7 °C), implying the thermal resistance of nanoparticles was improved with longer hydrolysis times [ 24 ]. Between 300–400 °C, the maximum weight loss increased for the CPNC3 sample with 76.7%, showcasing the uniform decomposition process of cellulose.…”

Section: Resultsmentioning

confidence: 99%

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Isolation and Production of Nanocrystalline Cellulose from Conocarpus Fiber

et al. 2021

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Conocarpus fiber is a lignocellulosic biomass rich in cellulose potentially used for producing nanocrystalline cellulose (NCC), a biomaterial extensively employed in various application fields. In the present work, different hydrolysis times of 10, 20 and 30 min were applied to chemically pre-treated Conocarpus fiber to produce CPNC1, CPNC2, and CPNC3 particles. With acid hydrolysis treatment, the yield of NCC product was successfully retained at 17–19%. Individual, rod-like shapes of NCC particles could be clearly observed under microscopy examination. From chemical composition analysis, a relatively pure cellulose compartment was produced for all NCC samples with substantial removal of lignin and hemicellulose. The physicochemical analysis proved that each nanoparticle sample possessed strong cellulose crystalline structure. For thermal analyses, the heat resistance of NCCs was gradually enhanced with the increased hydrolysis times. Therefore, the extracted NCC product from Conocarpus fiber could be a green nano-filler for developing nanocomposite material in the future.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Isolation and Production of Nanocrystalline Cellulose from Conocarpus Fiber

et al. 2021

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“…Self‐healing was achieved based on the reversible boronic ester interactions. [ 242 ] Even more complex supramolecular binding motifs can be used, such as ureidopyrimidinone (UPy) which undergoes four hydrogen bonds. [ 243 ] CNC was modified by an UPy and mixed with PVA to form hybrid self‐healing hydrogels.…”

Section: Nanocellulose‐based Hybrid and Functional Hydrogelsmentioning

confidence: 99%

Nanocellulose: Recent Fundamental Advances and Emerging Biological and Biomimicking Applications

et al. 2020

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In the effort toward sustainable advanced functional materials, nanocelluloses have attracted extensive recent attention. Nanocelluloses range from rod‐like highly crystalline cellulose nanocrystals to longer and more entangled cellulose nanofibers, earlier denoted also as microfibrillated celluloses and bacterial cellulose. In recent years, they have spurred research toward a wide range of applications, ranging from nanocomposites, viscosity modifiers, films, barrier layers, fibers, structural color, gels, aerogels and foams, and energy applications, until filtering membranes, to name a few. Still, nanocelluloses continue to show surprisingly high challenges to master their interactions and tailorability to allow well‐controlled assemblies for functional materials. Rather than trying to review the already extensive nanocellulose literature at large, here selected aspects of the recent progress are the focus. Water interactions, which are central for processing for the functional properties, are discussed first. Then advanced hybrid gels toward (multi)stimuli responses, shape‐memory materials, self‐healing, adhesion and gluing, biological scaffolding, and forensic applications are discussed. Finally, composite fibers are discussed, as well as nanocellulose as a strategy for improvement of photosynthesis‐based chemicals production. In summary, selected perspectives toward new directions for sustainable high‐tech functional materials science based on nanocelluloses are described.

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“…From TEM examination, WNCC1 presented its aggregated nanostructure, resulting in the partial disintegration of fibre fibrils [27]. With increased acidic concentration, both WNCC2 and WNCC3 samples showed needle-like nanocrystallites feature [12].…”

Section: Characterization Of Cncs From Washingtonia Fibrementioning

confidence: 98%