A facile method for preparation of green and antibacterial hydrogel based on chitosan and water-soluble 2,3-dialdehyde cellulose

Kang, Xiaoou; Deng, Lili; Yi, Lanhua; Ruan, Changqing; Zeng, Kaifang

doi:10.1007/s10570-021-03879-7

Cited by 25 publications

(12 citation statements)

References 50 publications

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“…As shown in Figure 3B, N–H peak of amino group and C=C characteristic peak of C=N group in imine structure appeared at 3324 and 1615 cm −1 respectively in the FTIR spectrum of SG‐PHMG, while O–H characteristic peak intensity of SG surface weakened, which provided evidence for the successful synthesis of SG‐PHMG. [ 45–47 ]…”

Section: Resultsmentioning

confidence: 99%

“…As shown in Figure 3B, N-H peak of amino group and C=C characteristic peak of C=N group in imine structure appeared at 3324 and 1615 cm −1 respectively in the FTIR spectrum of SG-PHMG, while O-H characteristic peak intensity of SG surface weakened, which provided evidence for the successful synthesis of SG-PHMG. [45][46][47] The decomposition of polymers was related to their composition, chain, and structure. The thermogravimetric analysis (TGA) curve of SG was influenced by the chemical modification.…”

Section: Resultsmentioning

confidence: 99%

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Anchoring Guanidine Polymer onto Sesbania Gum to Endow Excellent Antibacterial Function

Lan

Chu

et al. 2023

Macro Chemistry & Physics

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Infectious diseases caused by pathogenic bacteria invasion have become a serious threat to human life and health. In this study, polyhexamethylguanidine (PHMG) is anchored onto sesbania gum (SG) by an oxidation reaction coupled with the Schiff base reaction to endow antibacterial function. By the assistance of the oxidation reaction using sodium periodate (NaIO 4 ) as an oxidizing agent, the oxidized SG (OSG) forms and contributes to the generation of a platform with active sites for further antibacterial modification with PHMG. Then PHMG as antibacterial ingredient covalently bind on OSG, which helps to achieve SG-PHMG. After the colony counting method and inhibition zone test, SG-PHMG shows excellent antibacterial ability against 10 8 CFU mL −1 of Escherichia coli (E. coli). More interestingly, the grafting of PHMG makes SG more hydrophilic, and allows SG-PHMG fully contact with bacteria, as a result showing excellent antibacterial activity. It is believed that this strategy has great potential for the antibacterial-associated applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Anchoring Guanidine Polymer onto Sesbania Gum to Endow Excellent Antibacterial Function

Lan

Chu

et al. 2023

Macro Chemistry & Physics

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“…The preparation of DANC was proceeded according to a reported work with slight modification. 35 As shown in Figure 1, 1 g of LBTH-pretreated HDP cellulose, 100 g of water, and 1.6 g of NaIO 4 (1.2 mol per mol of AGU) were mixed and stirred in the dark for various reaction times (0−48 h), and the time-dependent data were gained by sampling a certain amount of reaction mixture at regular intervals. After sampling, the products were washed four times by centrifugation (1096 × g) with deionized water to obtain pure dialdehyde cellulose.…”

Section: Msh Pretreatmentmentioning

confidence: 99%

Preparation of Antibacterial Dialdehyde Nanocellulose Using LiBr·3H₂O Non-Dissolving Pretreatment Promoted Periodate Oxidation

Zhang

Deng

Liu

et al. 2023

ACS Sustainable Chem. Eng.

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Dialdehyde nanocellulose (DANC), obtained via periodate oxidation, has been widely used in foods, cosmetics, and biomedical fields due to its unique characteristics. However, the high-crystallinity and tight structure of cellulose retards the efficiency of periodate oxidation for producing DANC. Herein, a novel sustainable and clean approach with less energy consumption and low cost was developed through LiBr•3H 2 O (LBTH) non-dissolving pretreatment, which can shorten the oxidation time of the followed periodate oxidation and reduce the oxidant consumption. It was shown that the cellulose Iβ structure of hardwood dissolving pulp (HDP) was largely transformed into an amorphous structure after LBTH non-dissolving pretreatment for 30 min, and the corresponding crystallinity of HDP was reduced from 83.2 to 48.7%. After pretreatment for 60 min, the aldehyde group content of the obtained DANC increased by around 30% compared to the control without pretreatment while the operational cost was reduced by 45%. Moreover, the fabricated DANC showed strong antibacterial activity against both Escherichia coli and Bacillus subtilis. LBTH was recovered and reused, and the pretreatment effectiveness was also maintained. This study provides a sustainable, cost-effective, and clean approach for the preparation of DANC and will promote the application of cellulose nanomaterials.

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“…Chitosan (CS) is one of the most abundant biopolymers worldwide. The solubility of chitosan under acidic conditions also makes it a prospective candidate material for processing into hydrogels . CS can be easily dissolved in a vitamin C (VC) solution to improve its water solubility. , However, CS has poor stability and weak mechanical strength, as reported in many studies, which restricts its application.…”

Section: Introductionmentioning

confidence: 99%

Chitosan-Based Hydrogel-Incorporated Trp-CDs with Antibacterial Properties and pH-Mediated Fluorescence Response as a Smart Food Preservation Material

Zhang,

Gao,

Feng

et al. 2023

ACS Appl. Mater. Interfaces

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The great problem of food spoilage is causing food waste worldwide. However, prolonging the shelf life of food and responding to spoilage are good strategies for dealing with this problem. Herein, we present the design of multifunctional chitosan-based hydrogel-incorporated tryptophan carbon quantum dots (Trp-CDs) with antibacterial properties and pH-mediated fluorescence response (pH = 1−13). This chitosan (CS)/tannic acid (TA)/Trp-CDs hydrogel (CTTC hydrogel) was rapidly formed by a high density of hydrogen bonds and has the advantages of good mechanical properties (1628.55 kPa, 280%), washability (5−10 min), antioxidant activity (95.83%), and antibacterial properties. In practical application with fruits, the hydrogel significantly prolonged the shelf life of strawberries by at least 5 days and oranges by 20 days under ambient conditions. In particular, the hydrogel has good pH-mediated fluorescence responsiveness and reversibility due to doping with Trp-CDs, laying a foundation for its application in response to food spoilage.

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A facile method for preparation of green and antibacterial hydrogel based on chitosan and water-soluble 2,3-dialdehyde cellulose

Cited by 25 publications

References 50 publications

Anchoring Guanidine Polymer onto Sesbania Gum to Endow Excellent Antibacterial Function

Anchoring Guanidine Polymer onto Sesbania Gum to Endow Excellent Antibacterial Function

Preparation of Antibacterial Dialdehyde Nanocellulose Using LiBr·3H₂O Non-Dissolving Pretreatment Promoted Periodate Oxidation

Chitosan-Based Hydrogel-Incorporated Trp-CDs with Antibacterial Properties and pH-Mediated Fluorescence Response as a Smart Food Preservation Material

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A facile method for preparation of green and antibacterial hydrogel based on chitosan and water-soluble 2,3-dialdehyde cellulose

Cited by 25 publications

References 50 publications

Anchoring Guanidine Polymer onto Sesbania Gum to Endow Excellent Antibacterial Function

Anchoring Guanidine Polymer onto Sesbania Gum to Endow Excellent Antibacterial Function

Preparation of Antibacterial Dialdehyde Nanocellulose Using LiBr·3H2O Non-Dissolving Pretreatment Promoted Periodate Oxidation

Chitosan-Based Hydrogel-Incorporated Trp-CDs with Antibacterial Properties and pH-Mediated Fluorescence Response as a Smart Food Preservation Material

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Preparation of Antibacterial Dialdehyde Nanocellulose Using LiBr·3H₂O Non-Dissolving Pretreatment Promoted Periodate Oxidation