Surface modification of polyester films with polyfunctional amines: Effect on bacterial biofilm formation

Mallamaci, Gianmarco; Brugnoli, Benedetta; Mariano, Alessia; d’Abusco, Anna Scotto; Piozzi, Antonella; Lisio, Valerio Di; Sturabotti, Elisa; Alfano, Sara; Francolini, Iolanda

doi:10.1016/j.surfin.2023.102924

Cited by 5 publications

(1 citation statement)

References 58 publications

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“…Moreover, PLA, being an aliphatic polyester, has limited functional groups, which narrows down its interactions with other molecules, limiting its applicability in some fields such as medicine and packaging. 2,3 Therefore, several studies have been conducted on the compounds of PLA with biobased materials, such as cellulose and lignin, in order to enhance its performance or reduce its costs. 4,5 Since lignin is an inexpensive and abundant natural aromatic polymer, its potential use as a component in bioplastic composites, such as mixing with PLA, has been gaining tremendous attention in both industry and academia.…”

Section: Introductionmentioning

confidence: 99%

Improved Performance of Polylactic Acid Biocomposites at High Lignin Loadings through Glycidyl Methacrylate Grafting of Melt-Flowable Organosolv Lignin

Alshammari,

Ameli

2024

ACS Omega

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Glycidyl methacrylate (GMA) was grafted onto a melt-flowable organosolv lignin, called bioleum (BL), using a melt mixing process. Then, up to 40 wt % of BL-g-GMA was blended with polylactic acid (PLA) in the presence of dicumyl peroxide as a free radical initiator utilizing a melt extrusion method. Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis, differential scanning calorimetry, scanning electron microscopy, and tensile testing were performed to characterize the biocomposites' performance. The FTIR results revealed a successful grafting of GMA onto BL. Overall, BL and PLA compatibility increased significantly with the grafting and resulted in decreased domain size of BL-g-GMA and thus enhanced all the tensile properties (strength, modulus, and elongation at break) at BL loadings as high as 40 wt %. For instance, in the biocomposites containing 30 wt % BL, the GMA grafting increased the tensile strength by 23%. The presence of BL and BL-g-GMA hindered PLA's crystallization even when it was cooled at a rate of 1 °C/min. However, the composites with BL-g-GMA showed a crystallinity value comparable to that of PLA during isothermal crystallization, but with a slower crystallization rate. This work reveals a facile and scalable method that can be adopted to enhance the performance of lignin-based biocomposites.

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Section: Introductionmentioning

confidence: 99%

Improved Performance of Polylactic Acid Biocomposites at High Lignin Loadings through Glycidyl Methacrylate Grafting of Melt-Flowable Organosolv Lignin

Alshammari,

Ameli

2024

ACS Omega

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Glycerol‐Based Copolyesters as Polymeric Nanocarriers for Drug Delivery

D'Anna,

Jacob,

Axioti

et al. 2024

Journal of Polymer Science

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Enzymatic polymerization of glycerol‐based polyesters has emerged as a selective and sustainable strategy for the production of degradable, amphiphilic, PEG‐free polymeric materials. In the present work, we exploited the ability to produce copolyester variants of poly(glycerol adipate) (PGA), by adding a second functionalized diol in a one‐pot fashion. The produced glycerol‐based copolyesters, with a variety of amphiphilic balances and chemical functionalities along the backbone, have been screened as nanocarriers for drug delivery. The stability of the produced nanoparticles (NPs) was tested in relevant biological fluids and after freeze‐drying treatment. The new variants outperformed PGA homopolymers in the penetration through a gel‐like barrier as well as in their efficiency to encapsulate a poorly water‐soluble model drug. All the tested polymeric NPs formulations have demonstrated biocompatibility in both in vitro and in vivo experiments, that utilize Caenorhabditis elegans nematodes. Taken together, these preliminary results highlight the importance of introducing new chemistry along polyester backbones while tuning the amphiphilic nature of the final polymers to improve the performance of NP systems.

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Antibacterial poly(ethyl methacrylate) surfaces constructed by facile amination with polyethyleneimine of different architectures

Zhao,

Xue,

Wang

et al. 2025

Colloids and Surfaces B: Biointerfaces

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Surface modification of polyester films with polyfunctional amines: Effect on bacterial biofilm formation

Cited by 5 publications

References 58 publications

Improved Performance of Polylactic Acid Biocomposites at High Lignin Loadings through Glycidyl Methacrylate Grafting of Melt-Flowable Organosolv Lignin

Improved Performance of Polylactic Acid Biocomposites at High Lignin Loadings through Glycidyl Methacrylate Grafting of Melt-Flowable Organosolv Lignin

Glycerol‐Based Copolyesters as Polymeric Nanocarriers for Drug Delivery

Antibacterial poly(ethyl methacrylate) surfaces constructed by facile amination with polyethyleneimine of different architectures

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