A facile approach for tuning optical and surface properties of novel biobased Alginate/POTE handleable films via solvent vapor exposure

Méndez-López, Maximiliano; Ramos-Hernandez, Andrea; Moreno‐Serna, Viviana; Bonardd, Sebastián; Ramírez, Oscar; Silva, Hernán; Inostroza-Rivera, Ricardo; Díaz, David Díaz; Leiva, Ángel; Saldías, César

doi:10.1016/j.ijbiomac.2021.10.018

Cited by 4 publications

(1 citation statement)

References 66 publications

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“…Film samples were prepared using the solution-casting method directly from stock solutions of perylene (Pr) and cellulose acetate (CA) in acetone [41]. The concentrations of Pr and CA in the acetone solution were 1.0% w/v (250 mg) and 5% w/v (2.5 g), respectively.…”

Section: Preparation Of Ca/pr Free-standing Filmsmentioning

confidence: 99%

Effects of the Solvent Vapor Exposure on the Optical Properties and Photocatalytic Behavior of Cellulose Acetate/Perylene Free-Standing Films

Coderch,

Cordoba,

Ramírez

et al. 2023

Polymers

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The search to deliver added value to industrialized biobased materials, such as cellulose derivatives, is a relevant aspect in the scientific, technological and innovation fields at present. To address these aspects, films of cellulose acetate (CA) and a perylene derivative (Pr) were fabricated using a solution-casting method with two different compositions. Consequently, these samples were exposed to dimethylformamide (DMF) solvent vapors so that its influence on the optical, wettability, and topographical properties of the films could be examined. The results demonstrated that solvent vapor could induce the apparent total or partial preferential orientation/migration of Pr toward the polymer–air interface. In addition, photocatalytic activities of the non-exposed and DMF vapor-exposed films against the degradation of methylene blue (MB) in an aqueous medium using light-emitting diode visible light irradiation were comparatively investigated. Apparently, the observed improvement in the performance of these materials in the MB photodegradation process is closely linked to the treatment with solvent vapor. Results from this study have allowed us to propose the fabrication and use of the improved photoactivity “all-organic” materials for potential applications in dye photodegradation in aqueous media.

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Section: Preparation Of Ca/pr Free-standing Filmsmentioning

confidence: 99%

Effects of the Solvent Vapor Exposure on the Optical Properties and Photocatalytic Behavior of Cellulose Acetate/Perylene Free-Standing Films

Coderch,

Cordoba,

Ramírez

et al. 2023

Polymers

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Photoswitching/back-switching assessment of biobased cellulose acetate/azobenzene handleable films under visible-light LED irradiation

Gajardo

Córdoba

Forero

et al. 2023

International Journal of Biological Macromolecules

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Biomolecule-Based Optical Metamaterials: Design and Applications

et al. 2022

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Metamaterials are broadly defined as artificial, electromagnetically homogeneous structures that exhibit unusual physical properties that are not present in nature. They possess extraordinary capabilities to bend electromagnetic waves. Their size, shape and composition can be engineered to modify their characteristics, such as iridescence, color shift, absorbance at different wavelengths, etc., and harness them as biosensors. Metamaterial construction from biological sources such as carbohydrates, proteins and nucleic acids represents a low-cost alternative, rendering high quantities and yields. In addition, the malleability of these biomaterials makes it possible to fabricate an endless number of structured materials such as composited nanoparticles, biofilms, nanofibers, quantum dots, and many others, with very specific, invaluable and tremendously useful optical characteristics. The intrinsic characteristics observed in biomaterials make them suitable for biomedical applications. This review addresses the optical characteristics of metamaterials obtained from the major macromolecules found in nature: carbohydrates, proteins and DNA, highlighting their biosensor field use, and pointing out their physical properties and production paths.

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A facile approach for tuning optical and surface properties of novel biobased Alginate/POTE handleable films via solvent vapor exposure

Cited by 4 publications

References 66 publications

Effects of the Solvent Vapor Exposure on the Optical Properties and Photocatalytic Behavior of Cellulose Acetate/Perylene Free-Standing Films

Effects of the Solvent Vapor Exposure on the Optical Properties and Photocatalytic Behavior of Cellulose Acetate/Perylene Free-Standing Films

Photoswitching/back-switching assessment of biobased cellulose acetate/azobenzene handleable films under visible-light LED irradiation

Biomolecule-Based Optical Metamaterials: Design and Applications

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