Synthesis, characterization, and performance of carboxymethyl chitosan with different molecular weight as additive in water-based drilling fluid

Lei, Ming; Huang, Weian; Sun, Jinsheng; Shao, Zixuan; Duan, Wenguang; Wu, Tongliang; Wang, Yongchao

doi:10.1016/j.molliq.2020.113135

Cited by 28 publications

(17 citation statements)

References 53 publications

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“…Compared to chitosan, the spectrum of CMCS shows the introduction of carboxyl groups. Specifically, the characteristic absorbance band appeared at 1721 cm −1 shows the stretching vibration of COOH (Lei et al, 2020;Zhang, Yang et al, 2020). As for 2APCMCS, after the introduction of 2-aminopyridine, the new peak appears at 1488 cm −1 , which can be attributed to the characteristic signal of pyridine (Ouerghemmi et al, 2018;Tan et al, 2018).…”

Section: Ftir Spectramentioning

confidence: 88%

“…Carboxymethyl chitosan (CMCS) is one of the most important chitosan derivatives, which possesses good physicochemical properties such as water solubility, antibacterial activity, moisture absorption, anti inflammatory effect, and so on (Rui et al, 2017;Wang et al, 2020). Carboxymethyl chitosan is prepared by the substitution reaction of the active hydroxyl group or amino group on the chain of chitosan molecules with chloroacetic acid under specific conditions (Lei et al, 2020;Shieh, Chen, & Don, 2020). Compared to chitosan, carboxymethyl chitosan possesses good water solubility, which is attributed to the introduction of a hydrophilic group (carboxymethyl group).…”

Section: Introductionmentioning

confidence: 99%

“…For instance, it was reported that carboxymethyl chitosan showed enhanced antibacterial ability against Staphylococcus aureus and Escherichia coli (Zhang, Yang et al, 2020). Carboxymethyl chitosan was also reported to have anti-tumor activity, because carboxymethyl chitosan had stronger electrostatic interaction with negatively charged tumor cells, thus inhibiting the growth of tumor cells (Lei et al, 2020;Lyu et al, 2020). Besides, carboxymethyl chitosan possesses a promising application in antifungal and antioxidation fields due to its antifungal and antioxidant activities.…”

Section: Introductionmentioning

confidence: 99%

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New synthetic chitosan derivatives bearing benzenoid/heterocyclic moieties with enhanced antioxidant and antifungal activities

Zhang

Chen

et al. 2020

Carbohydrate Polymers

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Section: Ftir Spectramentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

New synthetic chitosan derivatives bearing benzenoid/heterocyclic moieties with enhanced antioxidant and antifungal activities

Zhang

Chen

et al. 2020

Carbohydrate Polymers

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“…The ability of the inhibitor to prevent shale hydration swelling can be detected by the changing rules of yield points for bentonite slurries with various concentrations [11] [12] [13]. The evaluation results of the bentonite inhibition test were shown in Figure 3.…”

Section: Bentonite Inhibition Testmentioning

confidence: 99%

Preparation and Performance of the Hyperbranched Polyamine as an Effective Shale Inhibitor for Water-Based Drilling Fluid

Liu¹,

Luo²,

Wang³

et al. 2021

OJOGas

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Seeking effective solutions to control and mitigate the interaction between drilling fluids and clay formations has been a challenge for many years, and various shale inhibitors have shown excellent results in problematic shale formations around the world. Herein, the hyperbranched polyamine (HBPA) inhibitor with a higher ratio of amine groups and obvious tendentiousness in protonation was successfully synthesized from ethylenediamine, acryloyl chloride and aziridine by five steps, in which the metal-organic framework (MOF) was employed as a catalyst for ring-open polycondensation (ROP). The structure and purity were confirmed by nuclear magnetic resonance hydrogen spectroscopy and high-performance liquid chromatography (HPLC) respectively. The HBPA displays more excellent performance than EDA and KCl widely applied in the oil field. After aging at 80˚C and 180˚C, the YP of a slurry system containing 25 wt.% bentonite and 2 wt.% HBPA are just 8.5 Pa and 5.5 Pa (wt.%: percentage of mass), respectively. The swelling lengths of 2 wt.% HBPA are estimated to be 1.78 mm, which falls by 70% compared with that of freshwater. Under a hot rolling aging temperature of 180˚C, the HBPA system demonstrates a significant inhibition with more than 85% shale cuttings recovery rate and is superior to conventional EDA and KCl. Mechanism analysis further validates that the HBPA can help to increase the zeta potential.

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“…To date, many macromolecular polysaccharides, such as starch, alginate, cellulose, chitoson, hyaluronic acid, carboxymethyl chitosan (CMC, a water soluble derivative of chitosan), etc., have been widely used to develop polysaccharide-based hydrogels. The use of polysaccharides as the primary hydrogel matrix to improve the hydrophilic performance of polymeric hydrogels has emerged as a significant research field [ 10–14 ]. In addition, the majority of polysaccharide-based hydrogels are usually comprised of additional cross-linked substances, owing to their poor mechanical properties and insufficient biological activity.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial polysaccharide-based hydrogel dressing containing plant essential oil for burn wound healing

et al. 2021

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Background Polysaccharide-based hydrogels have been developed for many years to treat burn wounds. Essential oils extracted from aromatic plants generally exhibit superior biological activity, especially antibacterial properties. Studies have shown that antibacterial hydrogels mixed with essential oils have great potential for burn wound healing. This study aimed to develop an antibacterial polysaccharide-based hydrogel with essential oil for burn skin repair. Methods Eucalyptus essential oil (EEO), ginger essential oil (GEO) and cumin essential oil (CEO) were employed for the preparation of effective antibacterial hydrogels physically crosslinked by carboxymethyl chitosan (CMC) and carbomer 940 (CBM). Composite hydrogels were prepared and characterized using antimicrobial activity studies, Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, gas chromatography-mass spectrometery, rheological analysis, viscosity, swelling, water loss rate and water vapor transmission rate studies. In addition, the biocompatibility of hydrogels was evaluated in vivo by cytotoxicity and cell migration assays and the burn healing ability of hydrogels was tested in vivo using burn-induced wounds in mice. Results The different essential oils exhibited different mixing abilities with the hydrogel matrix (CMC and CBM), which caused varying levels of reduction in essential oil hydrogel viscosity, swelling and water vapor transmission. Among the developed hydrogels, the CBM/CMC/EEO hydrogel exhibited optimal antibacterial activities of 46.26 ± 2.22% and 63.05 ± 0.99% against Staphylococcus aureus and Escherichia coli, respectively, along with cell viability (>92.37%) and migration activity. Furthermore, the CBM/CMC/EEO hydrogel accelerated wound healing in mouse burn models by promoting the recovery of dermis and epidermis as observed using a hematoxylin–eosin and Masson’s trichrome staining assay. The findings from an enzyme-linked immunosorbent assay demonstrated that the CBM/CMC/EEO hydrogel could repair wounds through interleukin-6 and tumor necrosis factor-α downregulation and transforming growth factor-β, vascular endothelial growth factor (VEGF) and epidermal growth factor upregulation. Conclusions This study successfully prepared a porous CBM/CMC/EEO hydrogel with high antibacterial activity, favorable swelling, optimal rheological properties, superior water retention and water vapor transmission performance and a significant effect on skin repair in vitro and in vivo. The results indicate that the CBM/CMC/EEO hydrogel has the potential for use as a promising burn dressing material for skin burn repair.

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Synthesis, characterization, and performance of carboxymethyl chitosan with different molecular weight as additive in water-based drilling fluid

Cited by 28 publications

References 53 publications

New synthetic chitosan derivatives bearing benzenoid/heterocyclic moieties with enhanced antioxidant and antifungal activities

New synthetic chitosan derivatives bearing benzenoid/heterocyclic moieties with enhanced antioxidant and antifungal activities

Preparation and Performance of the Hyperbranched Polyamine as an Effective Shale Inhibitor for Water-Based Drilling Fluid

Antibacterial polysaccharide-based hydrogel dressing containing plant essential oil for burn wound healing

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