Bioinspired interface engineering of gelatin/cellulose nanofibrils nanocomposites with high mechanical performance and antibacterial properties for active packaging

Kuang, Li; Jin, Shicun; Chen, Hui; Li, Jianzhang

doi:10.1016/j.compositesb.2019.04.043

Cited by 87 publications

(22 citation statements)

References 62 publications

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“…Besides, as an intermediate product, DAC had an absorption peak belonging to hemiacetal at 775 cm -1 (Errokh et al 2018), indicating that it has been successfully prepared. In the spectra of CA-2,3-DA, two characteristic peaks of the benzene ring appeared at 1517 and 815 cm -1 (Guo et al 2019;Li et al 2019). This result indicated that dopamine had been successfully modified to CA.…”

Section: Resultsmentioning

confidence: 82%

Novel Dopamine-Modified Cellulose Acetate Ultrafiltration Membranes with Improved Separation and Antifouling Performances

Guo

Wang

et al. 2021

Preprint

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Cellulose derivatives are the earliest and most widely used membrane materials due to its many excellent characteristics, especially chemical activity and biodegradability. However, the hydrophobic properties of cellulose acetate (CA) limited its development to some extent. To improve the inherent hydrophobic and antifouling properties of the CA membrane, CA was successfully modified with dopamine (CA-2,3-DA) through selective oxidation and Schiff base reactions in this work, which was confirmed by 1H NMR and FTIR measurements. And then, the CA-2,3-DA membrane with high water permeability and the excellent antifouling property was prepared by the phase inversion method. Compared with the primordial CA membrane, the CA-2,3-DA membrane maintained a higher rejection rate for BSA (92.5%) while greatly increasing the pure water flux (167.3 L/m2h), which could be overcome the trade-off relationship between selectivity and permeability of the traditional CA membrane to a certain extent. According to the three-cycles dynamic ultrafiltration and static protein adsorption experiments, the CA-2,3-DA membrane showed good long-term performance stability and superior antifouling performance, which was supported by the experiment results including filtration resistance, flux decline ratio and flux recovery ratio. It is expected that this approach can greatly expand the high-value utilization of modified natural organic polysaccharides in separation engineering.

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Section: Resultsmentioning

confidence: 82%

Novel Dopamine-Modified Cellulose Acetate Ultrafiltration Membranes with Improved Separation and Antifouling Performances

Guo

Wang

et al. 2021

Preprint

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“…As shown in Figure A, the water uptake increased rapidly in the initial 2 hours and then increased slowly before leveling off. The neat SPI film showed a relatively high water uptake value of 70.15%, which was mainly because the formation of hydrogen bonds between free hydroxyl groups of SPI and water molecules weakened the interaction of SPI chains . After the introduction of PDA layer, the water uptake of the S‐DA film was lower than that of the control.…”

Section: Resultsmentioning

confidence: 96%

“…Therefore, SPI‐based materials integrated with antibacterial and antifouling properties need to be urgently improved. One promising approach to prevent the formation of biofilm is to employ a hydrophobic surface on which water droplets can easily roll‐off, carrying away dust particles and bacteria …”

Section: Introductionmentioning

confidence: 99%

A mussel‐inspired strategy toward antimicrobial and bacterially anti‐adhesive soy protein surface

et al. 2019

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Biopolymer products are widely used in our everyday life, however, the poor antimicrobial nature dramatically limits their applications. Therefore, it is essential to improve the antibiotic performance of these biopolymer products. In this study, soy protein isolate (SPI)-based films with antimicrobial and antifouling function were fabricated through a dip-coating method. Briefly, mussel-inspired polydopamine was coated onto the surface of SPI film, followed by depositing silver nanoparticles (AgNPs) on the film for yielding an antimicrobial film, named S-DA-Ag. Subsequently, octadecyltrichlorosilane (OTS) molecular was attached on the S-DA-Ag film. Elemental and morphological surface analyses verified the successful coating for each step. The S-DA film decorated only with AgNPs exhibited an effective antimicrobial activity against Escherichia coli and Staphylococcus aureus but failed to prevent bacterial attachment. However, the number of attached bacterial cells significantly decreased for the OTS-coated S-DA-Ag film.Additionally, the resultant SPI-based films displayed excellent mechanical performance and remarkably improved water resistance, dramatically benefiting their practical applications. This novel design can endow the antimicrobial and antifouling properties to the SPI-based films and enhance their mechanical properties and water resistance, which might expand their potential applications in the healthcare and biomedical fields. K E Y W O R D Sbiopolymers, coatings, films, proteins

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“…In the fingerprint region, the characteristic bands for gelatin appear at 1683 cm −1 assigned to β-Turn [ 26 ], at 1668 cm −1 assigned to amide I: C=O stretch/hydrogen bond coupled with COO-, and at 1626 cm −1 assigned to amide I (C=O stretching vibration of amide and a small contribution of C-N stretching vibration); the band with a maximum at 1519 cm −1 assigned to amide II (C-N stretching vibration and N-H bending vibration), and the band from 1237 cm −1 assigned to amide III (C-N stretching vibration coupled to N-H bending vibrations with small contribution from C-C stretching and C=O in plane bending vibration) [ 27 ]. The band from 1519 cm −1 is a large band which includes both types of vibrations for the α-helical structure (with a maximum at 1550–1540 cm −1 ) and β-sheets structure (at 1525–1520 cm −1 ) [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

Gelatin Reinforced with CNCs as Nanocomposite Matrix for Trichoderma harzianum KUEN 1585 Spores in Seed Coatings

et al. 2021

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Increasing interest on sustainable agriculture has led to the development of new materials which can be used as seed coating agents. In this study, a new material was developed based on gelatin film reinforced with cellulose nanocrystals (CNC) which was further used as nanocomposite matrix for Trichoderma harzianum KUEN 1585 spores. The nanocomposite films were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM), showing the formation of new hydrogen bonds between the components with a good compatibility between them. Measurements of water contact angles and tests of water vapor sorption and swelling degree revealed an improvement in the water vapor absorption properties of the films as a result of their reinforcement with CNC. Furthermore, by adding the Trichoderma harzianum KUEN 1585 spp. in the seed coating material, the germination percentage, speed of germination and roots length of the corn seeds improved. The polymeric coating did not inhibit the growth of T. harzianum KUEN 1585, with this material being a good candidate in modern agriculture.

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Bioinspired interface engineering of gelatin/cellulose nanofibrils nanocomposites with high mechanical performance and antibacterial properties for active packaging

Cited by 87 publications

References 62 publications

Novel Dopamine-Modified Cellulose Acetate Ultrafiltration Membranes with Improved Separation and Antifouling Performances

Novel Dopamine-Modified Cellulose Acetate Ultrafiltration Membranes with Improved Separation and Antifouling Performances

A mussel‐inspired strategy toward antimicrobial and bacterially anti‐adhesive soy protein surface

Gelatin Reinforced with CNCs as Nanocomposite Matrix for Trichoderma harzianum KUEN 1585 Spores in Seed Coatings

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