Boron and Nitrogen Doped Graphene <i>via</i> Microwave Exfoliation for Simultaneous Electrochemical Detection of Ascorbic Acid, Dopamine and Uric Acid

Thearle, Rozi Alice; Latiff, Naziah Mohamad; Sofer, Zdeněk; Mazánek, Vlastimil; Pumera, Martin

doi:10.1002/elan.201600516

Cited by 18 publications

(9 citation statements)

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“…[ 45,46 ] Since then, novel 2D materials have been explored to enhance selectivity and sensitivity of DA detection. [ 45–51 ] Commonly reported materials are carbon‐based and gold‐based materials.…”

Section: Resultsmentioning

confidence: 99%

Siloxene, Germanane, and Methylgermanane: Functionalized 2D Materials of Group 14 for Electrochemical Applications

Rosli

Rohaizad

Šturala

et al. 2020

Adv Funct Materials

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(1 of 11)2D monoelemental group 14 materials beyond graphene, such as silicene and germanene, have recently gained a lot of attention. Covalent functionalization of group 14 layered materials can lead to significant tuning of their properties. While optical and electronic properties of germanene, silicene, and their derivatives have been studied in detail previously, there is no information on their electrochemistry and toxicity. Herein, electrochemical applications of 2D siloxene, germanane, and methylgermanane, specifically for detection of an important biomarker, dopamine, as well as catalyzation of oxygen reduction and hydrogen evolution reactions, which are important in energy applications, are explored. Among the three materials, germanane portrays most superior properties for the electrochemical applications mentioned. All three materials possess fast heterogeneous electron transfer rates, relative to bare glassy carbon electrodes. In addition, toxicity studies of these materials are conducted to gain insights on their possible harmful effects toward human health. The results of this study show siloxene nontoxic while germanane and methylgermanane impose dose-dependent toxicity. Interestingly, methylation successfully reduce the toxicity of methylgermanane at lower concentrations. These studies provide fundamental insights into electrochemical and toxic properties of functionalized group 14 layered materials for future electrochemical applications.

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Section: Resultsmentioning

confidence: 99%

Siloxene, Germanane, and Methylgermanane: Functionalized 2D Materials of Group 14 for Electrochemical Applications

Rosli

Rohaizad

Šturala

et al. 2020

Adv Funct Materials

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“…High temperature treatment of graphene oxide and other graphene‐based materials with, for example, BCl 3 led to the introduction of boron, however, due to the high temperature and high energy reaction, such modifications are chemically not specific . Such high temperature reaction led to both carbon substitution with boron, as well as adatom functionalization.…”

Section: Synthesis Of Graphene Derivativesmentioning

confidence: 99%

Chemistry of Graphene Derivatives: Synthesis, Applications, and Perspectives

Šturala

Luxa

Pumera

et al. 2018

Chemistry A European J

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117

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The chemistry of graphene and its derivatives is one of the hottest topics of current material science research. The derivatisation of graphene is based on various approaches, and to date functionalization with halogens, hydrogen, various functional groups containing oxygen, sulfur, nitrogen, phosphorus, boron, and several other elements have been reported. Most of these functionalizations are based on sp hybridization of carbon atoms in the graphene skeleton, which means the formation of out-of-plane covalent bonds. Several elements were also reported for substitutional modification of graphene, where the carbon atoms are substituted with atoms like nitrogen, boron, and several others. From tens of functional groups, for only two of them were reported full functionalization of graphene skeleton and formation of its stoichiometric counterparts, fluorographene and hydrogenated graphene. The functionalization of graphene is crucial for most of its applications including energy storage and conversion devices, electronic and optic applications, composites, and many others.

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“…Many procedures are now used to produce graphene , the most popular being the Hummer's method proposed in 1958 and based on graphite oxidation and exfoliation . Other methods to prepare graphene include: i) chemical or electrochemical reduction of GO, ii) chemical vapor deposition (CVD), iii) mechanical exfoliation , iv) microwave exfoliation and v) epitaxial growth on silicon carbide (SiC) . rGO can be obtained by reduction of GO by removing oxygen groups from the GO surface, as depicted in Figure .…”

Section: Graphene Productionmentioning

confidence: 99%

“…Also important is that graphene with distinct features can be obtained by varying the fabrication method. Heteroatom modified‐graphenes produced using different gases, such as NH 3 , BH 3 , H 2 S, SO 2 , SF 6 , SF 4 , MoF 6 , PX 3 , X 2 (X=F, Cl, Br, I), have been applied to sensing in electroanalysis with improved electronic and electrochemical features .…”

Section: Graphene Productionmentioning

confidence: 99%

Thin Films and Composites Based on Graphene for Electrochemical Detection of Biologically‐relevant Molecules

et al. 2018

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Graphene is one of the most studied materials ever, owing to its exceptional electronic, mechanical and thermal properties, which allow for many different types of application. In this review, we shall concentrate on the use of graphene and derivatives for electrochemical sensors and biosensors, where emphasis is placed on the importance of surface functionalization as this permits synergistic combinations with other nanomaterials and biomolecules. In addition to describing recent advances in graphene‐based electroanalytical applications, we discuss a few examples of their use in detecting small biomolecules and in immunosensing for a few diseases using films and composites. Also discussed are the possible methods for mass production of graphene, which is key to low‐cost biosensors for implantable devices and portable systems in point‐of‐care diagnosis.

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Boron and Nitrogen Doped Graphene via Microwave Exfoliation for Simultaneous Electrochemical Detection of Ascorbic Acid, Dopamine and Uric Acid

Cited by 18 publications

References 50 publications

Siloxene, Germanane, and Methylgermanane: Functionalized 2D Materials of Group 14 for Electrochemical Applications

Siloxene, Germanane, and Methylgermanane: Functionalized 2D Materials of Group 14 for Electrochemical Applications

Chemistry of Graphene Derivatives: Synthesis, Applications, and Perspectives

Thin Films and Composites Based on Graphene for Electrochemical Detection of Biologically‐relevant Molecules

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