Chitosan/alginate composite porous hydrogels reinforced with PHEMA/PEI core–shell particles and pineapple-leaf cellulose fibers: their physico-mechanical properties and ability to incorporate AgNP

Noipitak, Phongthep; Inphonlek, Supharat; Nillawong, Manuchet; Sunintaboon, Panya; Amornsakchai, Taweechai

doi:10.1007/s10965-021-02476-3

Cited by 12 publications

(3 citation statements)

References 38 publications

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“…Antibacterial is achieved by affecting bacterial protein activity or DNA synthesis. The principle is that the activity of the protein will be reduced or lost when the antibacterial agents bind to protein or DNA, and the replication of DNA will not be able to proceed [182,183]. Khamrai et al found that curcumin inhibits bacterial proliferation via interfering with the synthesis of proteins necessary for bacterial division by using bacterial cellulose composite hydrogels loaded with curcumin.…”

Section: Antibacterial Mechanism Of Cellulose-based Composite Hydrogelsmentioning

confidence: 99%

Functionalization and Antibacterial Applications of Cellulose-Based Composite Hydrogels

Bao

Song

et al. 2022

Polymers

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Pathogens, especially drug-resistant pathogens caused by the abuse of antibiotics, have become a major threat to human health and public health safety. The exploitation and application of new antibacterial agents is extremely urgent. As a natural biopolymer, cellulose has recently attracted much attention due to its excellent hydrophilicity, economy, biocompatibility, and biodegradability. In particular, the preparation of cellulose-based hydrogels with excellent structure and properties from cellulose and its derivatives has received increasing attention thanks to the existence of abundant hydrophilic functional groups (such as hydroxyl, carboxy, and aldehyde groups) within cellulose and its derivatives. The cellulose-based hydrogels have broad application prospects in antibacterial-related biomedical fields. The latest advances of preparation and antibacterial application of cellulose-based hydrogels has been reviewed, with a focus on the antibacterial applications of composite hydrogels formed from cellulose and metal nanoparticles; metal oxide nanoparticles; antibiotics; polymers; and plant extracts. In addition, the antibacterial mechanism and antibacterial characteristics of different cellulose-based antibacterial hydrogels were also summarized. Furthermore, the prospects and challenges of cellulose-based antibacterial hydrogels in biomedical applications were also discussed.

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Section: Antibacterial Mechanism Of Cellulose-based Composite Hydrogelsmentioning

confidence: 99%

Functionalization and Antibacterial Applications of Cellulose-Based Composite Hydrogels

Bao

Song

et al. 2022

Polymers

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“…In responding to media pH, the functional groups of the hydrogel network could be protonated or deprotonated depending on the pKa value of that specific group . As a result, hydrogen bonds (between different groups) and ionic bonds could either be weakened or strengthened. ,, When some bonds are weakened, parts of the network could be released into the solution, giving low gel fractions. It is found that gel fractions for the unreinforced system (SA/PAM) are very similar in all pH media, that is, 57.78, 57.78, and 58.08% for pH 3, DI water, and pH 10, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Besides the aspect ratio, the mechanical properties of natural fibers mainly depend on the cellulose content and microfibrillar angle . It was reported that the CF isolated from pineapple leaf (known as pineapple leaf fiber, PALF) contains a high cellulose content of 70–82% along with a very low microfibrillar angle of 5.6–14°. − PALF provides excellent mechanical properties including high tensile strength of 413–1627 MPa and Young’s modulus of 60–82 GPa. , The high content of hydroxyl groups on the PALF surface originated from cellulose, a major component, as well as lignin and hemicellulose, minor constituents, could facilitate strong interaction between the polymer matrix and fibers. Thus, the enhancement of mechanical strength can be expected.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Reinforcement of Cellulose Microfibers from Pineapple Leaf and Ionic Cross-Linking on the Properties of Hydrogels

et al. 2022

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Hydrogels contain a large amount of water; thus, they are jelly-like, soft, and fragile. Although hydrogels’ stiffness and strength can be improved by introducing another network to form a double or interpenetrating network, these mechanical properties are still not enough as many applications demand even stiffer and stronger hydrogels. Different methods of reinforcing hydrogels have been proposed and published. In this research, cellulose microfiber isolated from pineapple leaf was used as the reinforcement for hydrogels. The reinforcing efficiency of the fiber was studied for both single and double networks through the compression test. Other properties such as morphology and swelling behavior of the reinforced hydrogels were also studied. A synergistic effect of the second network and the fiber on the reinforcement was observed. The improvement due to the effect of fiber loading of only 0.6 wt % was found to be as high as 150%. This is greater than that observed in some nanofiller systems. Thus, the fiber can be used as a green reinforcement for similar hydrogel systems.

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Ag/Au-incorporated trimethyl chitosan-shell hybrid particles as reinforcing and antioxidant fillers for trimethyl chitosan hydrogel

Lekjinda,

Sunintaboon,

Watthanaphanit

et al. 2024

Carbohydrate Polymers

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Chitosan/alginate composite porous hydrogels reinforced with PHEMA/PEI core–shell particles and pineapple-leaf cellulose fibers: their physico-mechanical properties and ability to incorporate AgNP

Cited by 12 publications

References 38 publications

Functionalization and Antibacterial Applications of Cellulose-Based Composite Hydrogels

Functionalization and Antibacterial Applications of Cellulose-Based Composite Hydrogels

Synergistic Reinforcement of Cellulose Microfibers from Pineapple Leaf and Ionic Cross-Linking on the Properties of Hydrogels

Ag/Au-incorporated trimethyl chitosan-shell hybrid particles as reinforcing and antioxidant fillers for trimethyl chitosan hydrogel

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