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Vol. 134, Issue 11, November 2011, pp.108-114

 

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Nanomaterials and Chemical Sensors

 

*Sukumar BASU and # Palash Kumar BASU

* IC Design & Fabrication Centre, Department of Electronics & Telecommunication Eng.

Jadavpur University, Kolkata 700032, India

# Present Address: Microelectronics Lab, Dept of Electrical Communication Engineering,
Indian Institute of Science, Bangalore 560012, India

*E-mail: sukumar_basu@yahoo.co.uk

 

Received: 15 July 2011   /Accepted: 21 November 2011   /Published: 29 November 2011

Digital Sensors and Sensor Sysstems

 

Abstract: Nanomaterials and nanosensors are two most important iconic words of the modern science & Technology. Though nano technology is relatively a new area of research & development it will soon be included in the most modern electronic circuitry used for advanced computing systems. Since it will provide the potential link between the nanotechnology and the macroscopic world the development is primarily directed towards exploitation of nanotechnology to computer chip miniaturization and vast storage capacity. However, for implementation in the consumer products the present high cost of production must be overcome. There are different ways to make nanosensors e.g. top-down lithography, bottom-up assembly, and self molecular assembly. Consequently, nanomaterials & nanosensors have to be made compatible with the consumer technologies. The progress in detecting and sensing different chemical species with increased accuracy may transform the human society from uncertainty and inaccuracy to more precise and definite world of information. For example, extremely low concentrations of air pollutants or toxic materials in air & water around us can be accurately and economically detected in no time to save the human beings from the serious illnesses. Also, the medical sensors will help in diagnoses of the diseases, their treatment and in predicting the future profile of the individual so that the health insurance companies may exploit the opportunity to grant or to deny the health coverage. Other social issues like privacy invasion and security may be best monitored by the widespread use of the surveillance devices using nanosensors.

 

Keywords: Nanomaterials, Properties, Chemical & electrochemical sensors, Miniaturization, Applications

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