Coumarin and carbazole fluorescently modified cellulose nanocrystals using a one‐step esterification procedure

Sirbu, Elena; Eyley, Samuel; Thielemans, Wim

doi:10.1002/cjce.22624

Cited by 23 publications

(14 citation statements)

References 48 publications

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“…Engineers also characterize polymer impregnation, measure the size distribution of emulsions, release rates control of organic compounds, and encapsulation and release rates of antibiotics . UV‐vis spectroscopy is a powerful tool to calculate the reaction rates .…”

Section: Applicationsmentioning

confidence: 99%

Experimental methods in chemical engineering: Ultraviolet visible spectroscopy—UV‐Vis

et al. 2018

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UV-vis spectroscopy is an inexpensive, simple, flexible, non-destructive, analytical method appropriate for a wide class of organic compounds and some inorganic species. UV-vis spectrophotometers measure the absorbance or transmittance of light passing through a medium as a function of the wavelength. Chemical engineers apply it for quantitative analysis, to derive liquid phase reaction kinetics, and to identify the mechanism at the molecular scale. High performance liquid chromatography and ultra-high performance liquid chromatography integrate UV-vis detectors to identify and quantify the concentration of compounds in liquid streams. Combining these techniques with mass spectrometry facilitates identifying all species. UV-vis diffuse reflectance spectroscopy is a variant with enhanced scattering properties that measures the properties of solids and powders. A bibliometric analysis of the 10 000 most cited papers referring to UV-vis (2016 and 2017) groups research in four major clusters: nanoparticles and nanostucutres; photocatalysis and water treatment; crystals, complexes, and derivatives; and Ag and Au nanoparticles biological interaction.

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Section: Applicationsmentioning

confidence: 99%

Experimental methods in chemical engineering: Ultraviolet visible spectroscopy—UV‐Vis

et al. 2018

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“…Grigoray et al (2015) used the same synthesis approach to produce coumarin-containing cellulose polyelectrolytes, which were used to decorate pulp fibers to prepare light-responsive pulp fibers/fibrous materials with light-controllable mechanical properties. In addition, fluorescent CNCs with carbazole and coumarin functionalities were synthesized via a one-step esterification reaction using carbazole-9-yl-acetic acid and coumarin-3-carboxylic acid respectively (Sirbu et al 2016). …”

Section: Esterified Cellulose Containing Aliphatic Moietiesmentioning

confidence: 99%

Functional nanomaterials through esterification of cellulose: a review of chemistry and application

et al. 2018

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As the most abundant biopolymer in nature, cellulose has become a fascinating building block for the design of functional nanomaterials. Owing to the presence of numerous hydroxyl groups, cellulose provides a unique platform for the preparation of new materials via versatile chemical modifications. This critical review aims to present the advances about nanomaterials based on cellulose derivatives with the focus on cellulose esters within the last two decades, including the chemistry and application of these nanostructured materials. This review starts with the introduction on first fundamental aspects about diverse esterification techniques used up to now to modify cellulose. The in situ esterification for the isolation of nanocelluloses and diverse post esterification methods of nanocelluloses for the surface functionalization were highlighted in the following description. Various esterification strategies and further nanostructure constructions have been developed aiming to confer specific properties to cellulose esters, extending therefore their feasibility for highly sophisticated applications, which were summarized with respect to the categories of the introduced ester moieties. Thus, this review assembles and emphasizes the state-of-art knowledge of functional nanomaterials derived from diverse esterified cellulose compounds.

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“…Grigoray et al (2017) have synthesized a light-responsive pulp fiber with light-controllable mechanical properties decorated with coumarin moieties. Fluorescent CNCs with carbazole and coumarin functionalities were prepared as an invisible security fiber for authenticity indicators that turn visible when being exposed to UV light (Sîrbu et al, 2016). Tong et al (2020) fabricated a highly transparent hydrophobic cellulose film for application in flexible electroluminescent devices via free radical polymerization of vinyl-bearing cellulose.…”

Section: Combination Of Nanocellulose and Luminescent Organic Polymersmentioning

confidence: 99%

Current State of Applications of Nanocellulose in Flexible Energy and Electronic Devices

et al. 2020

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Novel and unique applications of nanocellulose are largely driven by the functional attributes governed by its structural and physicochemical features including excellent mechanical properties and biocompatibility. In recent years, thousands of groundbreaking works have helped in the development of targeted functional nanocellulose for conductive, optical, luminescent materials, and other applications. The growing demand for sustainable and renewable materials has led to the rapid development of greener methods for the design and fabrication of high-performance green nanomaterials with multiple features, and consequently new challenges and opportunities. The present review article discusses historical developments, various fabrication and functionalization methods, the current stage, and the prospects of flexible energy and hybrid electronics based on nanocellulose.

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Coumarin and carbazole fluorescently modified cellulose nanocrystals using a one‐step esterification procedure

Cited by 23 publications

References 48 publications

Experimental methods in chemical engineering: Ultraviolet visible spectroscopy—UV‐Vis

Experimental methods in chemical engineering: Ultraviolet visible spectroscopy—UV‐Vis

Functional nanomaterials through esterification of cellulose: a review of chemistry and application

Current State of Applications of Nanocellulose in Flexible Energy and Electronic Devices

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