Cellulose-based biogenic supports, remarkably friendly biomaterials for proteins and biomolecules

Culica, Madalina Elena; Chibac-Scutaru, Andreea-Laura; Mohan, Tamilselvan; Coseri, Sergiu

doi:10.1016/j.bios.2021.113170

Cited by 29 publications

(14 citation statements)

References 159 publications

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“…Cellulose is a productive and widely sourced biopolymer on the earth. 42 , 43 , 44 One dimensional cellulose nanocrystal (CNC), with high crystallinity and diameter smaller than 100 nm, can be prepared by chemical, physical or biological treatment. 45 The natural CNC has highly ordered crystalline structure, large specific surface area, unique morphological structure, good environmental compatibility, and strong hydrophilicity.…”

Section: Introductionmentioning

confidence: 99%

Green-in-green biohybrids as transient biotriboelectric nanogenerators

Wang

et al. 2022

iScience

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Section: Introductionmentioning

confidence: 99%

Green-in-green biohybrids as transient biotriboelectric nanogenerators

Wang

et al. 2022

iScience

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Section: Introductionmentioning

confidence: 99%

“…Water interactions are highly relevant for the fibers in their native growth environment and they are equally important for the manifold applications of cellulose fibers − as well as for modern usages designed for various nanocellulose grades. − In this realm, many studies exist on the vapor transport mechanisms in macroscopic products prepared from cellulose fibers, such as paper and textiles or regenerated films and fibers. ,− In addition, commendable efforts have been undertaken to model the vapor transport through certain cellulose-based structures. − Such studies are generally driven by industrial applications and they are specific to the relevant macroscopic structures where a multiscale morphology plays a significant role . Besides the pulp and paper industry, emerging fields include nanocellulose-based optoelectronic devices, − sensors, , and medicine …”

Section: Introductionmentioning

confidence: 99%

“…20−22 Such studies are generally driven by industrial applications and they are specific to the relevant macroscopic structures where a multiscale morphology plays a significant role. 23 Besides the pulp and paper industry, emerging fields include nanocellulose-based optoelectronic devices, 24−26 sensors, 27,28 and medicine. 29 In this fundamental contribution, we aim at minimizing the morphological contribution by monitoring the water vapor interactions in homogeneous, two-dimensionally confined ultrathin films of highly amorphous cellulose.…”

Section: ■ Introductionmentioning

confidence: 99%

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Humidity Response of Cellulose Thin Films

et al. 2022

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Cellulose–water interactions are crucial to understand biological processes as well as to develop tailor made cellulose-based products. However, the main challenge to study these interactions is the diversity of natural cellulose fibers and alterations in their supramolecular structure. Here, we study the humidity response of different, well-defined, ultrathin cellulose films as a function of industrially relevant treatments using different techniques. As treatments, drying at elevated temperature, swelling, and swelling followed by drying at elevated temperatures were chosen. The cellulose films were prepared by spin coating a soluble cellulose derivative, trimethylsilyl cellulose, onto solid substrates followed by conversion to cellulose by HCl vapor. For the highest investigated humidity levels (97%), the layer thickness increased by ca. 40% corresponding to the incorporation of 3.6 molecules of water per anhydroglucose unit (AGU), independent of the cellulose source used. The aforementioned treatments affected this ratio significantly with drying being the most notable procedure (2.0 and 2.6 molecules per AGU). The alterations were investigated in real time with X-ray reflectivity and quartz crystal microbalance with dissipation, equipped with a humidity module to obtain information about changes in the thickness, roughness, and electron density of the films and qualitatively confirmed using grazing incidence small angle X-ray scattering measurements using synchrotron irradiation.

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“…Long-chain biopolymeric carbohydrate molecules are bio-based materials with huge potential in biomedical applications, exhibiting unique beneficial features of natural polymers. Polysaccharides, especially cellulose, are an important natural biopolymer due to their high abundance and wide distribution in nature, as they are a major structural component in plant cell walls [ 1 , 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and Antifungal Silver Nanoparticles with Tunable Size Embedded in Various Cellulose-Based Matrices

Biliuță¹,

Bostănaru-Iliescu

Mareș

et al. 2022

Molecules

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The aim of this study was to synthesize silver nanoparticles (AgNPs) using cellulose derivatives and to evaluate their antimicrobial potential. As effective reducing and stabilizing agents for AgNPs, cellulose derivatives, such as hydroxypropyl cellulose (HPC), methylcellulose (MC), ethylcellulose (EC), and cellulose acetate (CA), were used. Their ability to reduce silver ions as well as the size of the resulting AgNPs were compared. The formation and stability of the reduced AgNPs in the solution were monitored using UV-Vis analysis. The size, morphology, and charge of the AgNPs were evaluated. We found that, when using cellulosic derivatives, AgNPs with sizes ranging from 17 to 89 nm and different stabilities were obtained. The parameters, such as size and ζ potential indicate the stability of AgNPs, with AgNPs-CA and AgNPs-HPC being considered more stable than AgNPs-EC and AgNPs-MC since they show higher ζ potential values. In addition, the AgNPs showed antimicrobial activity against all reference strains and clinical isolates. MIC values between 0.0312 and 0.125 mM had a bactericidal effect on both Gram-positive and Gram-negative bacteria. The fungicidal effect was obtained at a MIC value of 0.125 mM. These results may provide rational support in the design of medical gauze products, including gauze pads, rolls, and sponges.

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Cellulose-based biogenic supports, remarkably friendly biomaterials for proteins and biomolecules

Cited by 29 publications

References 159 publications

Green-in-green biohybrids as transient biotriboelectric nanogenerators

Green-in-green biohybrids as transient biotriboelectric nanogenerators

Humidity Response of Cellulose Thin Films

Antibacterial and Antifungal Silver Nanoparticles with Tunable Size Embedded in Various Cellulose-Based Matrices

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