Sensors single walled carbon

Kam, N.W.S. and Dai, H.J. (2005) Carbon nanotubes as intracellular protein transporters generality and biological functionality. Journal of the American Chemical Society, 127 (16), 6021-6026. Heller, D.A. et al. (2005) Single-walled carbon nanotube spectroscopy in live cells towards long-term labels and optical sensors. Advanced Materials, 17 (23), 2793-2799. 

Z. Xu, X. Chen, X. Qu, J. Jia, and S. Dong, Single-wall carbon nanotube-based voltammetric sensor and biosensor. Biosens. Bioelectron. 20, 579—584 (2004). 

L. Wang and Z.B. Yuan, Direct electrochemistry of glucose oxidase at a gold electrode modified with single-wall carbon nanotubes. Sensors 3, 544-554 (2003). 

Heller DA, Baik S, Eurell TE, Strano MS (2005) Single-walled carbon nanotube spectroscopy in live cells Towards long-term labels and optical sensors. Adv. Mater. 17 2793-2799. 

Mubeen, S., et al., Palladium nanoparticles decorated single-walled carbon nanotube hydrogen sensor. The Journal of Physical Chemistry C, 2007.111(17) p. 6321-6327. 

Liu S, Shen Q, Cao Y et al (2010) Chemical functionalization of single-walled carbon nanotube field-effect transistors as switches and sensors. Coord Chem Rev 254 1101-1116... 

Kamarchuk GV, Kolobov IG, Khotkevich AV et al (2008) New chemical sensors based on point heterocontact between single wall carbon nanotubes and gold wires. Sensor Actual B 134(2) 1022-1026... 

Nanomaterials can also be applied to glucose biosensors to enhance the properties of the sensors and, therefore, can lead to smaller sensors with higher signal outputs. Carbon nanotubes have been incorporated in previously developed sensors and seen to increase the peak currents observed by threefold.89 Platinum nanoparticles and single-wall carbon nanotubes have been used in combination to increase sensitivity and stability of the sensor.90,91 CdS quantum dots have also been shown to improve electron transfer from glucose oxidase to the electrode.92,93 Yamato et al. dispersed palladium particles in a polypyrrole/sulfated poly(beta-hydro-xyethers) and obtained an electrode response at 400 mV, compared to 650 mV, at a conventional platinum electrode.94... 

Barone PW, Baik S, Heller DA, Strano MS. Near-infrared optical sensors based on single-walled carbon nanotubes. Nature Materials 2005, 4, 86-92. 

Barone PW, Parker RS, Strano MS. In vivo fluorescence detection of glucose using a single-walled carbon nanotube optical sensor design, fluorophore properties, advantages, and disadvantages. Analytical Chemistry 2005, 77, 7556-7562. 

Helbling T, Pohle R, Durrer L (2008) Sensing N02 with individual suspended single-walled carbon nanotubes. Sensors and Actuators B Chemical 132(2) 491—497... 

Alcohol vapor sensors based on single-walled carbon nanotube field effect transistors , Nano Letters 3, 877 (2003). 

Single-walled carbon nanotubes, SWNT, having a diameter of 0.7 nm were electro-chemically derivatized on the sides and ends with diazonium tetrafluoroborate derivatives. In this process the estimated degree of functionality was about 1 out of every 20 to 30 carbons in the nanotube. These chemically modified nanotubes have applications in polymer composite materials, molecular electronic applications, and sensor devices. 

Wood, J.R. and Wagner, H.D. (2000). Single-wall carbon nanotubes as molecular pressure sensors. Appl. Phys. Lett., 76, 2883-5. 

Figure 14.7 Four representative configurations of carbon nanotube sensors (a) field-effect transistor with a single single-walled carbon nanotube conduction channel (b) carbon nanotube film resistive sensor (c) carbon nanotube network field-effect transistor (d) entangled vertical carbon nanotube film as a resistive sensor.

The discovery of new materials such as nanoparticles and nanotubes has led to their use in electrochemical sensors in combination with ferrocene mediators and redox enzymes. Davis and co-workers modified single-wall carbon nanotubes (SWCNTs) by adsorbing glucose oxidase to them and then used a soluble ferrocene derivative as a... 

Lu, Y. J., Li, J., Han, J., Ng, H. T., Binder, C., Partridge, C. and Meyyappan, M. (2004) Room temperature methane detection using palladium loaded single-walled carbon nanotube sensors . Chemical Physics Letters, 391(4-6), 344-348. 

Coated and functionalised single-walled carbon nanotubes (SWCNTs) as gas sensors... 

---