Preparation of graphene/tetrathiafulvalene nanocomposite switchable surfaces

Kamińska, Izabela; Das, Manash R.; Coffinier, Yannick; Niedziółka‐Jönsson, Joanna; Woisel, Patrice; Opałło, Marcin; Szunerits, Sabine; Boukherroub, Rabah

doi:10.1039/c1cc15215g

Cited by 61 publications

(49 citation statements)

References 26 publications

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“…Accordingly, an approach that using the reagents which are environmentally friendly and non-toxic to simultaneous reduce and functionalize GO is desirable urgently [8]. Recently, covalent and non-covalent interaction could be used for graphene functionalization [9] and some reports have shown that GO can be reduced and functionalized by organic molecules via -stacking interaction between graphene basal plane and aromatic molecules such as hemin [10], ascorbic acid [11] or tetrathiafulvalene [12] under mild conditions. Hemin, one of iron porphyrin derivatives, is well known as the active center of heme-proteins, having abilities to mimic the active site of various enzymes [13,14].…”

Section: Introductionmentioning

confidence: 99%

A novel electrochemical biosensor based on hemin functionalized graphene oxide sheets for simultaneous determination of ascorbic acid, dopamine and uric acid

Zou

Luo

et al. 2015

Sensors and Actuators B: Chemical

153

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Section: Introductionmentioning

confidence: 99%

A novel electrochemical biosensor based on hemin functionalized graphene oxide sheets for simultaneous determination of ascorbic acid, dopamine and uric acid

Zou

Luo

et al. 2015

Sensors and Actuators B: Chemical

153

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“…Recently, Amarnath et al introduced a pyrrole as a new chemical reducing agent in this process, but the C/O ratio showed that GO was not fully reduced and the resulting rGO contained high nitrogen contamination emanating from the nitrogen source17. Kaminska et al also introduced reduction and functionalization of graphene oxide using tetrathiafulvalene18. Despite the urgent need for production of a defect-free rGO, there have not been any reports of chemical healing of the defects of heteroatom-free rGO in the reduction process of GO to rGO.…”

mentioning

confidence: 99%

High-Quality Reduced Graphene Oxide by a Dual-Function Chemical Reduction and Healing Process

Some

Kim

Yoon

et al. 2013

Sci Rep

250

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A new chemical dual-functional reducing agent, thiophene, was used to produce high-quality reduced graphene oxide (rGO) as a result of a chemical reduction of graphene oxide (GO) and the healing of rGO. Thiophene reduced GO by donation of electrons with acceptance of oxygen while it was converted into an intermediate oxidised polymerised thiophene that was eventually transformed into polyhydrocarbon by loss of sulphur atoms. Surprisingly, the polyhydrocarbon template helped to produce good-quality rGO C (chemically reduced) and high-quality rGO CT after thermal treatment. The resulting rGO CT nanosheets did not contain any nitrogen or sulphur impurities, were highly deoxygenated and showed a healing effect. Thus the electrical properties of the as-prepared rGO CT were superior to those of conventional hydrazine-produced rGO that require harsh reaction conditions. Our novel dual reduction and healing method with thiophene could potentially save energy and facilitate the commercial mass production of high-quality graphene.G raphene has attracted great interest because of its unique physical properties 1 arising from its rigid twodimensional (2D) structure, and its potential applications in nanoelectronics 2 , energy storage materials 3 , polymer composite materials 4 and sensing 5 . Mechanical exfoliation is one of the successful approaches that have been developed for the preparation of high-quality graphene sheets suitable for fundamental studies, but large-scale production of such pure graphene sheets remains unfeasible. Instead, chemical graphitisation from graphene oxide (GO) to reduced graphene oxide (rGO) is generally used for mass production of graphene [6][7][8][9][10] . Numerous reducing chemicals such as hydrazine 11 , NaBH 4 12 , hydriodic acid (HI) 13 , NaOH 14 , ascorbic acid 15 and glucose 16 have been used to convert GO to rGO. However, all of these reducing agents produce imperfect rGOs containing a high level of defects or disorders. Recently, Amarnath et al. introduced a pyrrole as a new chemical reducing agent in this process, but the C/O ratio showed that GO was not fully reduced and the resulting rGO contained high nitrogen contamination emanating from the nitrogen source 17 . Kaminska et al. also introduced reduction and functionalization of graphene oxide using tetrathiafulvalene 18 . Despite the urgent need for production of a defect-free rGO, there have not been any reports of chemical healing of the defects of heteroatom-free rGO in the reduction process of GO to rGO. In addition, the development of novel reduction methods that are environmentally friendly, mild, and cost effective ways remains a challenge for mass production of high-quality rGOs by chemical healing.In this study, we introduce a new dual-functional reducing agent, thiophene (T) which has lower reactivity than pyrrole 17 and produces high-quality, heteroatom-free rGOs by chemical healing reduction of GO. Thiophene can be used to reduce as-prepared GO by dual-functional electron donation and oxygen consumption. It is also ...

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“…The group of Szunerits built on their earlier published method (140,141) to prepare a hemin-functionalized reduced graphene oxide to prepare PON-sensitive electrodes with Peteu and collaborators. The graphene surface is supporting electron-donating organic molecules.…”

Section: Electrochemical Quantification Of Peroxynitritementioning

confidence: 99%

Meat Freshness: Peroxynitrite’s Oxidative Role, Its Natural Scavengers, and New Measuring Tools

Vasilescu

Vezeanu

Liu

et al. 2014

ACS Symposium Series

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Typically, about $1 billion/year is lost when red meat loses freshness on the shelf. Consumer purchasing decisions depend on meat color and flavor, which are strongly influenced by complex nitro-oxidative events within meat muscle tissue. One goal of this chapter is to explain the loss in meat freshness linked to the action of peroxynitrite anion ONOO-, a strong nitro-oxidative agent. The toxicity of abnormally high ONOOlevels in vivo has been proven, and ONOO -is also suspected of accelerating meat spoilage by two principal mechanisms:(1) oxidation of iron atoms in heme-containing globin proteins, leading to a color change from red to brown, and (2) peroxidation of unsaturated lipids, leading to flavor degradation. A second goal is to review electrochemical quantification methods for ONOO-and its oxidative effects on biologically relevant molecules, including unsaturated phospholipids within biological membranes and heme-containing molecules. A third goal is to examine the natural polyphenols that protect against peroxynitrite-induced oxidative damage. The final goal is to

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Preparation of graphene/tetrathiafulvalene nanocomposite switchable surfaces

Cited by 61 publications

References 26 publications

A novel electrochemical biosensor based on hemin functionalized graphene oxide sheets for simultaneous determination of ascorbic acid, dopamine and uric acid

A novel electrochemical biosensor based on hemin functionalized graphene oxide sheets for simultaneous determination of ascorbic acid, dopamine and uric acid

High-Quality Reduced Graphene Oxide by a Dual-Function Chemical Reduction and Healing Process

Meat Freshness: Peroxynitrite’s Oxidative Role, Its Natural Scavengers, and New Measuring Tools

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