Nanofibrillar Cellulose‐Chitosan Composite Film Electrodes: Competitive Binding of Triclosan, Fe(CN)63−/4−, and SDS Surfactant

Tsourounaki, Kostoula; Bonné, Michael J.; Thielemans, Wim; Psillakis, Elefteria; Helton, Matthew E.; McKee, Anthony; Marken, Frank

doi:10.1002/elan.200804338

Cited by 17 publications

(9 citation statements)

References 38 publications

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“…Owing to the relatively high affinity of sodium dodecylsulfate (SDS) to the CNFs/chitosan composite, the authors suggested that the CNFs/chitosan modified electrode could be potentially used for the accumulation and electrochemical detection of SDS and other anionic surfactants. 123 Hydrogen peroxide and glucose have also been detected using hybrid materials such as AuNPs/NCs. 96,124,125 The fabrication of AuNP/BC nanocomposites through a onestep biotemplated method by using poly(ethyleneimine) (PEI) as a linking and reducing agent for the synthesis of AuNPs within the scaffold of BC was first described by Zhang et al The fabricated AuNP/BC nanocomposites were found to be excellent supports for enzyme immobilization.…”

Section: Ncs In Optical (Bio)sensingmentioning

confidence: 99%

Nanocellulose in Sensing and Biosensing

et al. 2017

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Due to its multifunctional character, nanocellulose (NC) is one of the most interesting nature-based nanomaterials and is attracting attention in a myriad of fields such as biomaterials, engineering, biomedicine, opto/electronic devices, nanocomposites, textiles, cosmetics and food products. Moreover, NC offers a plethora of outstanding properties, including inherent renewability, biodegradability, commercial availability, flexibility, printability, low density, high porosity, optical transparency as well as extraordinary mechanical, thermal and physicochemical properties. Consequently, NC holds unprecedented capabilities which are appealing to the scientific, technologic and industrial community. In this review, we highlight how NC is being tailored and applied in (bio)sensing technology, whose results aim at displaying analytical information related to various fields such as clinical/medical diagnostics, environmental monitoring, food 3 safety, physical/mechanical sensing, labeling and bioimaging applications. In fact, NCbased platforms could be considered an emerging technology to fabricate efficient, simple, cost-effective and disposable optical/electrical analytical devices for several (bio)sensing applications including health care, diagnostics, environmental monitoring, food quality control, forensic analysis and physical sensing. We foresee that many of the (bio)sensors which are currently based on plastic, glass or conventional paper platforms will be soon transferred to NC and this generation of (bio)sensing platforms could revolutionize the conventional sensing technology.

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Section: Ncs In Optical (Bio)sensingmentioning

confidence: 99%

Nanocellulose in Sensing and Biosensing

et al. 2017

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“…The relatively high affinity of sodium dodecyl sulfate (SDS) to the NFC/ chitosan composite was commended and has suggested that the NFC/chitosan-modified electrode could be potentially used for the accumulation and electrochemical detection of SDS and other anionic surfactants. 78 Hydrogen peroxide and glucose could also be detected using hybrid materials such as AuNPs/CNCs. Zhang et al studied the fabrication of AuNP/BC nanocomposites: they described the synthesis of AuNPs within the support of BC by a one-step biotemplated method using poly (ethylenimine) (PEI) as a linking and reducing agent.…”

Section: Cncs In Electrical Biosensingmentioning

confidence: 99%

Section: Nanocellulose In Biosensing and Bioimagingmentioning

confidence: 99%

Surface-Modified Nanocellulose for Application in Biomedical Engineering and Nanomedicine: A Review

Tortorella¹,

Buratti²,

Maturi³

et al. 2020

IJN

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Presently, a plenty of concerns related to the environment are due to the overuse of petroleum-based chemicals and products; the synthesis of functional materials, starting from the natural sources, is the current trend in research. The interest for nanocellulose has recently increased in a huge range of fields, from the material science to the biomedical engineering. Nanocellulose gained this leading role because of several reasons: its natural abundance on this planet, the excellent mechanical and optical features, the good biocompatibility and the attractive capability of undergoing surface chemical modifications. Nanocellulose surface tuning techniques are adopted by the high reactivity of the hydroxyl groups available; the chemical modifications are mainly performed to introduce either charged or hydrophobic moieties that include amination, esterification, oxidation, silylation, carboxymethylation, epoxidation, sulfonation, thiol- and azido-functional capability. Despite the several already published papers regarding nanocellulose, the aim of this review involves discussing the surface chemical functional capability of nanocellulose and the subsequent applications in the main areas of nanocellulose research, such as drug delivery, biosensing/bioimaging, tissue regeneration and bioprinting, according to these modifications. The final goal of this review is to provide a novel and unusual overview on this topic that is continuously under expansion for its intrinsic sophisticated properties.

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“…Cellulose nanofibrils are obtained in colloidal form with negative surface charge (surface) and they can be bound onto electrode surfaces with a cationic polyelectrolyte such as chitosan [24] or poly(diallyldimethylamminum chloride) (PDDAC) [25]. Here, a layer-by-layer electrostatic deposition approach is chosen to deposit very thin films of cellulose nanofibrils bound with PDDAC onto ITO electrode substrates (see Experimental).…”

Section: Formation and Characterisation Of Carbonisedmentioning

confidence: 99%

Ultrathin Carbon Film Electrodes from Vacuum‐Carbonised Cellulose Nanofibril Composite

Vuorema¹,

Sillanpää²,

Rassaei³

et al. 2010

Electroanalysis

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A novel way to produce ultrathin transparent carbon layers on tin-doped indium oxide (ITO) substrates is developed. The ITO surface is coated with cellulose nanofibrils (from sisal) via layer-by-layer electrostatic binding with poly(diallyldimethylammonium chloride) or PDDAC acting as the binder. The cellulose nanofibril-PDDAC composite film is then vacuum-carbonised at 500 8C. The resulting carbon films are characterised by atomic force microscopy (AFM), small angle X-ray scattering (SAXS), wide-angle X-ray scattering (WAXS), and Raman methods. Smooth carbon films with good adhesion to the ITO substrate are formed. The electrochemical characterisation of the carbon films is based on the oxidation of hydroquinone and the reduction of benzoquinone in aqueous phosphate buffer media. A modest effect of the cellulose nanofibril-PDDAC film on the rate of electron transfer is observed. The effect of the film on the rate of electron transfer after carbonisation is more dramatic. For a 40-layer cellulose nanofibril-PDDAC film after carbonisation a two-order of magnitude change in the rate of electron transfer occurs presumably due to a better interaction of the hydroquinone/benzoquinone system with the electrode surface.

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Nanofibrillar Cellulose‐Chitosan Composite Film Electrodes: Competitive Binding of Triclosan, Fe(CN)₆^3−/4−, and SDS Surfactant

Cited by 17 publications

References 38 publications

Nanocellulose in Sensing and Biosensing

Nanocellulose in Sensing and Biosensing

<p>Surface-Modified Nanocellulose for Application in Biomedical Engineering and Nanomedicine: A Review</p>

Ultrathin Carbon Film Electrodes from Vacuum‐Carbonised Cellulose Nanofibril Composite

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