8-9th August, 2008 School of Materials Science & Nanotechnology,Jadavpur University
A brief review on electrochemical enzymatic
nanobiosensors
Nirmal K. Sarkar* and K. K. Chattopadhyay**
* Sodepur Chandrachur Vidyapith, Sodepur, Kolkata- 110, India
** Dept of Nano Science and Technology, Jadavpur University, Kolkata-32, India
Abstract :
The amazing and unique properties of nanoscale materials have opened up tremendous potential applications of nanomaterials in sensing biological element or bio-sequential variation in some complex organic compounds, in relation to modern medical diagnosis and treatment, food technology, environmental monitoring and some other fields. Studies of electrochemical responses via charge transfer mechanism of nanobiosensors of enzymatic in category, has been surveyed. Enzyme immobilization techniques, novel binding material, sensors with different nanoscale morphologies along with quantum dots are discussed under the frame work of electrochemical measurement principle. Nano particle based electronic signal amplification and coding strategies for bio-affinity assays are also focused in the discussion. Necessary improvement in sensitivity and specificity of sensing activity will be given stressed in this review.
Keywords: nanomaterial, biosensor, charge transfer, enzyme, quantum dot, signal sensitivity,
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