Characterization data of cellulose modified by gamma irradiation to be used as template in the synthesis of a photoactive composite for environmental applications

Rodríguez-Quesada, Laria; Ledezma-Espinoza, Aura; Avendaño-Soto, Esteban; Starbird, Ricardo

doi:10.1016/j.dib.2022.108277

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…10,27,28 The formation of carbonyl groups, possibly aldehydic or carboxylic form, was a consequence of the glycosidic bond cleavage and cellulose depolymerization. [28][29][30][31] To determine whether this change was statistically significant, the FT-IR spectra were further evaluated through a chemometric method called Principal Component Analysis (PCA). This technique aims to find a small set of principal components (PC) that can describe the most variability in the spectra.…”

Section: Discussionmentioning

confidence: 99%

Radiation processing of bacterial cellulose-monolaurin wound dressing: Physicochemical effects, functional analysis, and sterilization

Tranquilan-Aranilla,

Flores,

Gallardo

et al. 2023

J Biomater Appl

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A commercial bacterial cellulose-monolaurin wound dressing was investigated for changes in the chemical structure, mechanical strength, thermal degradation, morphology, and functional swelling properties after exposure to gamma and electron beam radiations at doses 15-50 kGy. Radiation-induced oxidation occurred as seen in the FT-IR peaks at 1720-1750 cm−1. Degradation of the cellulosic network was observed in tensile strength reduction and shift in degradation temperature to lower values. The SEM cross-section images of the irradiated dressings revealed a less dense nanostructure network compared to the non-irradiated samples while the XRD diffractograms indicated a change in lattice direction/plane. Despite these changes, irradiation caused no significant effect on the functional properties especially at 15-25 kGy doses where most biomedical devices are sterilized. All irradiated wound dressings exhibited physical integrity, increased exudate absorption, and water vapor transmission rate - properties beneficial to wound-healing functionality. The pre-selected sterilization dose of 15 kGy for each ionizing radiation was successfully verified and substantiated following ISO 11137-2:2016, hence ionizing radiation is a suitable sterilization modality for the product.

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Section: Discussionmentioning

confidence: 99%

Radiation processing of bacterial cellulose-monolaurin wound dressing: Physicochemical effects, functional analysis, and sterilization

Tranquilan-Aranilla,

Flores,

Gallardo

et al. 2023

J Biomater Appl

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Green synthesis of sulfonated cellulose/polyether block amide/polyethylene glycol diacrylate (SC/PEBAX/PEGDA) composite membrane by gamma radiation and sulfonation techniques for battery application

Kanbua

Rattanawongwiboon²,

Khamlue³

et al. 2023

International Journal of Biological Macromolecules

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Stress-assisted clustering-triggered emission of cellulose- based materials

Dimitriev,

Zhang,

Dávid

et al. 2024

Preprint

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Cellulose-based materials can be classified as non-conventional luminogens that produce photoluminescence (PL) in the visible range due to specific intermolecular arrangements. Usually such an arrangement is referred to as clusterization. Here, we demonstrate the importance of intramolecular arrangement of ethyl cellulose and bacterial cellulose that demonstrate tunable photoluminescence with multiexponent decay. We show that the observed emission is due to a n-π* electronic transition of carbonyl groups, whose emission intensity depends on the form of the sample preparation, either the powder-form or spin-coated films, displaying different density of the emitting regions on the microscale. Particularly, it is shown that PL emission is produced from disordered amorphous regions rather than from crystalline ones. We show that the emission is also promoted by mechanical stress applied to the sample that is suggested to facilitate formation of clusters of the carbonyl groups. The observed stress-assisted emission opens up the potential perspective of using this phenomenon in printed photonic devices.

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Characterization data of cellulose modified by gamma irradiation to be used as template in the synthesis of a photoactive composite for environmental applications

Cited by 4 publications

References 16 publications

Radiation processing of bacterial cellulose-monolaurin wound dressing: Physicochemical effects, functional analysis, and sterilization

Radiation processing of bacterial cellulose-monolaurin wound dressing: Physicochemical effects, functional analysis, and sterilization

Green synthesis of sulfonated cellulose/polyether block amide/polyethylene glycol diacrylate (SC/PEBAX/PEGDA) composite membrane by gamma radiation and sulfonation techniques for battery application

Stress-assisted clustering-triggered emission of cellulose- based materials

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