2011
DOI: 10.1021/ac201315q
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Nanocrystalline 3C-SiC Electrode for Biosensing Applications

Abstract: Silicon carbide has been proved as a candidate for power and high-frequency devices. In this paper, we show the application of nanocrystalline 3C-SiC as an electrochemical electrode and its electrochemical functionalization for biosensing applications. SiC electrodes show a wider potential window and lower background current than glassy carbon electrodes. The surface can be electrochemically functionalized with diazonium salts, as confirmed by electrochemical techniques and X-ray photoelectron spectroscopy. Th… Show more

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Cited by 82 publications
(56 citation statements)
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“…Figure 2a shows the cyclic voltammogram of a GaN film electrode in 0.1M KCl, from which the electrochemical potential window can be drawn. A wide potential window of 3.5 V can be deduced, while the anodic potential limit is up to ~2.5 V, based on the definition of a current density threshold of 0.1mA/cm 2 [25]. Such a high potential window indicates wide application of the GaN electrode for electrochemistry.…”
Section: Page 8 Of 20mentioning
confidence: 99%
“…Figure 2a shows the cyclic voltammogram of a GaN film electrode in 0.1M KCl, from which the electrochemical potential window can be drawn. A wide potential window of 3.5 V can be deduced, while the anodic potential limit is up to ~2.5 V, based on the definition of a current density threshold of 0.1mA/cm 2 [25]. Such a high potential window indicates wide application of the GaN electrode for electrochemistry.…”
Section: Page 8 Of 20mentioning
confidence: 99%
“…The good biocompatibilities and diverse sensing abilities of diamond and β-SiC [31][32][33][34][35], make the diamond/β-SiC composite film also qualify as a good candidate for biosensor applications. However, while fabricating thin film based biosensors, the surfaces are more than often chemically or physically treated to make them clean and highly active [36][37][38], aiming at enhancing the adhesion of the chemical or biochemical species on the solid surface while minimizing the nonspecific adsorption of those species which disturbs the sensing process [39,40].…”
Section: Biosensor Applicationmentioning
confidence: 99%
“…It possesses relatively high thermal conductivity (3.6 W cm −1 K −1 ), good thermal stability, high Young's modulus (450 GPa), and high breakdown voltage (>2 MV cm −1 ), properties which have already enabled various 3C‐SiC‐based high power and high energy devices 3. In addition to the advantages mentioned above, its high biocompatibility, and chemical stability qualify it as a promising candidate in the field of biomedical applications such as biocompatible coatings on implants, insulating coatings on implantable microelectrodes, and biosensors 4–10. All the 3C‐SiC‐based applications mentioned still require tremendous experimental efforts in order to obtain various 3C‐SiC with different structures or morphologies.…”
Section: Introductionmentioning
confidence: 99%