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Nanosensors

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... modest power requirements Data storage systems Possibilities Silver and gold nanoparticles CNT Computational Design Nanosensor Technology Medical ... – PowerPoint PPT presentation

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Title: Nanosensors


1
Nanosensors
  • Vijay Rajesh Ammanamanchi

2
Outline
  • Introduction
  • Possibilities
  • Nanosensor Technology
  • Applications
  • Realities
  • Conclusion

3
Introduction
  • Sensors operating on the scale of atoms and
    molecules
  • Smaller size, lower weight, modest power
    requirements
  • Data storage systems

4
Possibilities
  • Silver and gold nanoparticles
  • CNT
  • Computational Design

5
Nanosensor Technology
  • Medical Nanorobots
  • Three operation levels
  • 1.Internal nanorobot states
  • 2.Local and global somatic states
  • 3.Extra somatic states

6
Contd..
  • Communications Requirements
  • Coordinate complex, large scale
    cooperative
  • activities
  • Pass along relevant sensory, messaging,
  • navigational, and other operational
    data
  • Monitor collective task progress

7
Contd..
  • Outmessaging to Patient or User
  • Generating an artificial sensory stimulus
  • Direct stimulation of the receptor in the
    absence
  • of actual sensory stimulus
  • Triggering artificial action potential in
    the afferent
  • nerves that carry information from the
    sensor to
  • the CNS

8
Applications
  • Physical Sensors
  • Worlds smallest
  • balance

9
Contd..
  • Chemical sensors
  • Ionization detector
  • Wireless sensor
  • network

10
Contd..
  • Biosensors
  • Detection of
  • complex molecules

11
Contd..
  • Deployable Nanosensors
  • SnifferSTAR a light-
  • weight portable
  • chemical detection
  • system

12
Contd..
  • Nanonose
  • Nanothermometer
  • NanoParticles spy on molecular binding
  • Gas sensors
  • Detection of heavy metal ions with a
  • nanocontact sensor

13
Enhanced resolution scanning
14
Realities
  • Usual design problems
  • Flow control
  • Risk and Economics

15
Conclusions
  • The proposed nanotechnology could allow the
    development of a new generation of integrated
    self
  • contained nanofunctional devices
    incorporating multiple end-point sensing
    elements,optical quantum detectors and integrated
    electro-optic molecular
  • switching capability.
  • The obvious challenges are reducing the cost
    of materials and devices, improving reliability
    and packing the devices into useful products.

16
References
  • http//sensorsmag.com/articles/article_index/
  • http//www.nanosensors.com/supersharpsiliconsensor
    s.html
  • http//www.nature.com/nature/links/030710/030710-7
    .html
  • http//www.nanomedicine.com/NMI/
  • http//physicsweb.org/article/news/7/10/7
  • http//www.foresight.org/Conferences/MNT05/Abstrac
    ts/Brenabst.html
  • http//www.news-gazette.com/story.cfm?Number14625
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