Conductive electrospun nanofibers containing cellulose nanowhiskers and reduced graphene oxide for the electrochemical detection of mercury(II)

Teodoro, Kelcilene B. R.; Migliorini, Fernanda L.; Facure, Murilo H. M.; Corrêa, Daniel S.

doi:10.1016/j.carbpol.2018.12.022

Cited by 76 publications

(43 citation statements)

References 37 publications

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“…The polymeric matrices tested include polyvinylidene chloride (PVDC) [173], natural rubber (NR) [182], polyethylene oxide [183], poly-lactic acid (PLA) [184,185] and polyamide 6 [186]. It was demonstrated that the incorporation of CNC/RGO conferred to the polymeric nanocomposites outstanding mechanical and thermal properties, interesting barrier features, low toxicity, high conductivity and so forth [183,184,186]. For instance, Cao et al prepared a 3D interconnected CNC/RGO/NR network using a latex assembly method for which NR latex was incorporated into a CNC/RGO suspension [182].…”

Section: Cnc/rgomentioning

confidence: 99%

Cellulose Nanocrystals/Graphene Hybrids—A Promising New Class of Materials for Advanced Applications

2020

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With the growth of global fossil-based resource consumption and the environmental concern, there is an urgent need to develop sustainable and environmentally friendly materials, which exhibit promising properties and could maintain an acceptable level of performance to substitute the petroleum-based ones. As elite nanomaterials, cellulose nanocrystals (CNC) derived from natural renewable resources, exhibit excellent physicochemical properties, biodegradability and biocompatibility and have attracted tremendous interest nowadays. Their combination with other nanomaterials such as graphene-based materials (GNM) has been revealed to be useful and generated new hybrid materials with fascinating physicochemical characteristics and performances. In this context, the review presented herein describes the quickly growing field of a new emerging generation of CNC/GNM hybrids, with a focus on strategies for their preparation and most relevant achievements. These hybrids showed great promise in a wide range of applications such as separation, energy storage, electronic, optic, biomedical, catalysis and food packaging. Some basic concepts and general background on the preparation of CNC and GNM as well as their key features are provided ahead.

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Section: Cnc/rgomentioning

confidence: 99%

Cellulose Nanocrystals/Graphene Hybrids—A Promising New Class of Materials for Advanced Applications

2020

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“…Teodoro et al [150] used the interaction between cellulose nanowhiskers and rGO/polyamide-6 to enhance the electrochemical detection of Hg 2 + ions related to better charge transfer within the platform structure. The sensor presented an LOD of 5.2 nmol L À 1 , a concentration response range of 2.5-200 μmol L À 1 , and high selectivity in the presence of interfering metal ions in real samples.…”

Section: Environmental Monitoring Applicationsmentioning

confidence: 99%

Structure, Properties, and Electrochemical Sensing Applications of Graphene‐Based Materials

et al. 2020

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Owing to their versatility and unique characteristics, graphene‐based materials have been used extensively for the development of electrochemical sensors and biosensors. The key to the maximum potential of these materials is the understanding of the role their structure plays in their modification processes. Herein, we summarize some structural characteristics of graphene oxide (GO) and reduced graphene oxide (rGO) and explore different surface modification methods for electrochemical sensing applications. surveyed the most recent applications of these materials as (bio)sensors, particularly for environmental monitoring and health‐related applications, such as quantification of biomarkers and metabolites and detection of cancer cells. The low detection limits, selectivity toward target molecules, and robustness of GO‐ and rGO‐based electrodes render them critical materials for the preparation of sensors for routine analysis and monitoring.

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“…STEM has been used in the analysis of biopolymers and biopolymer nanocomposites. The bright field and dark field imaging of the STEM has assisted in the determination of particle size, shape, filler dispersion and agglomeration, and biopolymer coatings as well [174][175][176][177][178][179][180][181][182][183]. The HAADF-STEM images obtained for metal oxide nanoparticles stabilized in carboxymethyl-cellulose (CMC)/cetyltrimethyl-ammonium-bromide (CTAB) templates have assisted authors to distinguish between the two phases [179].…”

Section: Transmission Electron Microscopymentioning

confidence: 99%

Microscopic Techniques for the Analysis of Micro and Nanostructures of Biopolymers and Their Derivatives

et al. 2020

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Natural biopolymers, a class of materials extracted from renewable sources, is garnering interest due to growing concerns over environmental safety; biopolymers have the advantage of biocompatibility and biodegradability, an imperative requirement. The synthesis of nanoparticles and nanofibers from biopolymers provides a green platform relative to the conventional methods that use hazardous chemicals. However, it is challenging to characterize these nanoparticles and fibers due to the variation in size, shape, and morphology. In order to evaluate these properties, microscopic techniques such as optical microscopy, atomic force microscopy (AFM), and transmission electron microscopy (TEM) are essential. With the advent of new biopolymer systems, it is necessary to obtain insights into the fundamental structures of these systems to determine their structural, physical, and morphological properties, which play a vital role in defining their performance and applications. Microscopic techniques perform a decisive role in revealing intricate details, which assists in the appraisal of microstructure, surface morphology, chemical composition, and interfacial properties. This review highlights the significance of various microscopic techniques incorporating the literature details that help characterize biopolymers and their derivatives.

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Conductive electrospun nanofibers containing cellulose nanowhiskers and reduced graphene oxide for the electrochemical detection of mercury(II)

Cited by 76 publications

References 37 publications

Cellulose Nanocrystals/Graphene Hybrids—A Promising New Class of Materials for Advanced Applications

Cellulose Nanocrystals/Graphene Hybrids—A Promising New Class of Materials for Advanced Applications

Structure, Properties, and Electrochemical Sensing Applications of Graphene‐Based Materials

Microscopic Techniques for the Analysis of Micro and Nanostructures of Biopolymers and Their Derivatives

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