INNOVATIONS IN NANOSENSORS – AN OVERVIEW

BY:

CHETAN.MRAMESH HEGDEDR. P K SRIMANI

A nanometer is a billionth of a meter.

Nanotechnology is not a new science.

HISTORY OF NANOTECHNOLOGY

A roman cup of prehistoric times using nanoparticles to gives different colors at different times of the day.

INTRODUCTION:

Number of Nano Technology sensors published per year until 2011

Nanosensors are sensing devices with atleast one of their sensing dimensions being not greater than 100nm.

3 broad categories:

1. Optical nanosensors.2. Electromagnetic nanosensors.3. Mechanical/vibrational nanosensors.

INTRODUCTION TO NANOSENSORS

OPTICAL NANOSENSORS

BASIC PRINCIPLE OF WORKING OF OPTICAL NANOSENSORS

Optical nanosensorsOptical nanosensor as Temperature Indicator

Basic principle of fluorosene based optical nanosensor

ELECTROMAGNETIC NANOSENSORS

Electromagnetic nanosensors

Nano pressure sensor

Nano bacteria sensor

Mechanical nanosensors

Nanowires for connection of nano and micro components

SUMMARY OF ABOVE SENSORS

Conclusion

REFERENCES [1] Nanosensors:physical chemical and

biological[2012] – Vinod Kumar Khanna. [2] http://en.wikipedia.org/wiki/Nanosensor.htm -

Wikipedia Nanosensors article. [3] A Conceptual Review of Nanosensors - Teik-Cheng

Lim and Seeram Ramakrishna. [4] Graphene-based wireless bacteria detection on

tooth enamel – Nature Communications. [6]

http://www.sensorsportal.com/HTML/SENSORS/Nanosensors.htm - Nanosensors portal.

[7] Tata McGrawHill – Nanotechnology an Introduction. [8] http://en.wikipedia.org/wiki/Graphene - Wikipedia

Graphene article