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Modulating layer-by-layer assembled sodium alginate-chitosan film properties through incorporation of cellulose nanocrystals with different surface charge densities.
Int J Biol Macromol. 2021 Jun 01; 180:510-522.IJ

Abstract

In this work, 2,2,6,6-tetramethylpiperidine-1-oxyl-oxidized cellulose nanocrystals (TOCNs) were loaded into sodium alginate/chitosan multilayer film as nanofillers to investigate the modulation of the surface charge density of TOCNs on the film properties. First, the surface charge density of TOCNs was controlled by adjusting the carboxyl content and morphological size by varying the oxidant dosage. After oxidation, TOCN with higher surface charge density was observed to display a higher crystallinity, a more open internal structure, a better dispersibility and a slightly weaker thermal stability. In addition, a 15-layer film composed of sodium alginate and chitosan, called (SA/CH)15, was constructed by layer-by-layer assembly. Both in situ deposition monitoring and free-standing multilayer film formation indicated that TOCNs relied on strong electrostatic interactions and hydrogen bonding to achieve a compact and uniform interlayer and a thinner thickness of (SA/CH)15, which was more evident at a high surface charge density. The addition of TOCNs also enhanced the mechanical properties, thermal stability, hydrophobicity, and barrier properties of (SA/CH)15. In particular, the resulting sodium alginate/chitosan multilayer film exhibited an improved packaging performance when nanocomposite was performed using TOCN with a surface charge density of 3.22 ± 0.11 e nm-2.

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Publisher Full Text (DOI)

Authors+Show Affiliations

College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China.

College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China.

College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China; Qingdao Special Food Research Institute, Qingdao 266109, People's Republic of China. Electronic address: wuhaoqau@163.com.

College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China.

College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China.

College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China.

MeSH

AlginatesCelluloseCellulose, OxidizedChitosanHydrophobic and Hydrophilic InteractionsMechanical PhenomenaMicroscopy, Electron, TransmissionNanocompositesNanofibersNanoparticlesOxidation-ReductionScattering, Small AngleSpectroscopy, Fourier Transform InfraredStatic ElectricitySurface PropertiesX-Ray Diffraction

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33745975

Citation

Sun, Ruonan, et al. "Modulating Layer-by-layer Assembled Sodium Alginate-chitosan Film Properties Through Incorporation of Cellulose Nanocrystals With Different Surface Charge Densities." International Journal of Biological Macromolecules, vol. 180, 2021, pp. 510-522.

Sun R, Zhu J, Wu H, et al. Modulating layer-by-layer assembled sodium alginate-chitosan film properties through incorporation of cellulose nanocrystals with different surface charge densities. Int J Biol Macromol. 2021;180:510-522.

Sun, R., Zhu, J., Wu, H., Wang, S., Li, W., & Sun, Q. (2021). Modulating layer-by-layer assembled sodium alginate-chitosan film properties through incorporation of cellulose nanocrystals with different surface charge densities. International Journal of Biological Macromolecules, 180, 510-522. https://doi.org/10.1016/j.ijbiomac.2021.03.092

Sun R, et al. Modulating Layer-by-layer Assembled Sodium Alginate-chitosan Film Properties Through Incorporation of Cellulose Nanocrystals With Different Surface Charge Densities. Int J Biol Macromol. 2021 Jun 1;180:510-522. PubMed PMID: 33745975.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Modulating layer-by-layer assembled sodium alginate-chitosan film properties through incorporation of cellulose nanocrystals with different surface charge densities. AU - Sun,Ruonan, AU - Zhu,Junxiang, AU - Wu,Hao, AU - Wang,Shiqing, AU - Li,Wenxiang, AU - Sun,Qingjie, Y1 - 2021/03/18/ PY - 2021/01/28/received PY - 2021/03/12/revised PY - 2021/03/16/accepted PY - 2021/3/23/pubmed PY - 2021/7/27/medline PY - 2021/3/22/entrez KW - Cellulose nanocrystals KW - Chitosan KW - Layer-by-layer assembly KW - Sodium alginate KW - Surface charge density KW - TEMPO-mediated oxidation SP - 510 EP - 522 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 180 N2 - In this work, 2,2,6,6-tetramethylpiperidine-1-oxyl-oxidized cellulose nanocrystals (TOCNs) were loaded into sodium alginate/chitosan multilayer film as nanofillers to investigate the modulation of the surface charge density of TOCNs on the film properties. First, the surface charge density of TOCNs was controlled by adjusting the carboxyl content and morphological size by varying the oxidant dosage. After oxidation, TOCN with higher surface charge density was observed to display a higher crystallinity, a more open internal structure, a better dispersibility and a slightly weaker thermal stability. In addition, a 15-layer film composed of sodium alginate and chitosan, called (SA/CH)15, was constructed by layer-by-layer assembly. Both in situ deposition monitoring and free-standing multilayer film formation indicated that TOCNs relied on strong electrostatic interactions and hydrogen bonding to achieve a compact and uniform interlayer and a thinner thickness of (SA/CH)15, which was more evident at a high surface charge density. The addition of TOCNs also enhanced the mechanical properties, thermal stability, hydrophobicity, and barrier properties of (SA/CH)15. In particular, the resulting sodium alginate/chitosan multilayer film exhibited an improved packaging performance when nanocomposite was performed using TOCN with a surface charge density of 3.22 ± 0.11 e nm-2. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/33745975/Modulating_layer_by_layer_assembled_sodium_alginate_chitosan_film_properties_through_incorporation_of_cellulose_nanocrystals_with_different_surface_charge_densities_ DB - PRIME DP - Unbound Medicine ER -