GUIDED BY: PRESENTED BY :
DR. P.C. BAPNA PRAVEEN VAISHNAV
COLLEGE OF TECHNOLOGY & ENGINEERING
UDAIPUR (RAJ.)
SEMINAR PRESE...
MEMS AND NANOTECHNOLOGY
PRESENTED BY PRAVEENVAISHNAV
WHAT IS MEMS
 Micro(small)
 Electro(electric or electronic components)
 Mechanical(mechanical components)
 Systems(int...
 MEMS stands for Micro Electro Mechanical Systems.
 It is a technique of combining Electrical or electronics
and Mechani...
Where do you find MEMS?
 Printers
◦ High DPI inkjets
 Projectors
 Micro-Mirrors from Texas Instruments
 Cell Phones
◦ ...
Why MEMS
 Small Size
◦ Typically 0.1-100um feature size
Human Hair thickness ~ 50um
Red Blood Cells ~ 10um
Why MEMS
 Low cost
◦ Use existing IC fabrication technology
◦ Made primarily on Silicon Wafers
PRESENTED BY PRAVEENVAISHN...
Why MEMS
 Favorable scaling for a lot of applications
◦ Flow-rate sensors
◦ Electrostatics
◦ Magnetism
◦ Many others
 Mi...
MATERIAL USED
 SILICON
 POLYMERS
 METALS
 CERAMIC
PRESENTED BY PRAVEENVAISHNAV
APPLICATIONS OF MEMS
 Accelerometers
 Magnetometers
 Microphones
 Micro-Fluidics
 RF-MEMS
 Biomedical
 Bridge to Na...
DISADVANTAGES OF MEMS
 Farm establishment requires huge
investments
 Micro-components are Costly compare
to macro-compon...
WHA IS NANOTECHNOLOGY
PRESENTED BY PRAVEENVAISHNAV
PRESENTED BY PRAVEENVAISHNAV
 Nanotechnology is the technology of
arranging atoms and molecules in a
material.
 This all...
PRESENTED BY PRAVEENVAISHNAV
A simple analogy..
 The atoms in an object can be
compared to the blocks in a
building game....
PRESENTED BY PRAVEENVAISHNAV
To create and use materials, devices, and systems
with fundamentally new properties and funct...
EFFECT
PRESENTED BY PRAVEENVAISHNAV
PRESENTED BY PRAVEENVAISHNAV
MEMS AND NANOTECHNOLOGY
IN MEDICAL APPLICATIONS
PRESENTED BY PRAVEENVAISHNAV
BENEFITS IN MEDICAL APPLICATIONS
 Small volume of reagent samples (like blood),
required for analysis.
 Low power consum...
CLASSIFICATION OF
BIOLOGICAL MEMS DEVICES
 Biomedical MEMS – deals “in vivo”, within the host body.
→ precision surgery
→...
MEMS Sensors
MEMS sensors in the biomedical field
maybe used as:
 Critical sensors used during operations.
 Long term se...
PRESENTED BY PRAVEENVAISHNAV
MEMS and nanotechnology
in precision surgery
Micro-surgical tools
 Present day surgeons operate within a
domain prohibited by the mobility and
control of the surgical...
ULTRASONIC MEMS
CUTTING TOOL
 These tools make use of piezoelectric materials attached to the
cutter.
 Consist of micro ...
MEMS driven scalpels
 Precise control of the
scalpel is an important
requirement in any surgery.
 MEMS piezoelectric mot...
MEMS microneedles
 This patch is applied to the skin
and drug is delivered to the body
using micropumps.
 These micropum...
MEMS and endoscopy
PRESENTED BY PRAVEENVAISHNAV
 What is endoscopy ?
 A diagnostic procedure which involves the introduc...
ADVANTAGES OF MEMS PILL
 Requires no sedation
 Can show a view of the entire small intestine
 Can aid in early detectio...
Smart Pill
 A MEMS device that can be
implanted in the human body.
 Consists of
◦ biosensors
◦ Battery
◦ Control circuit...
Working of this magic pill !
 The pill can be taken like any normal tablet.
 Once within the body, the pill's sensors
sa...
SKIN RESURFACING
 Skin resurfacing is a form of cosmetic surgery that is
often used to aesthetically enhance the appearan...
DRAWBACKS OF THE CONVENTIONAL
APPROACHES IN SKIN RESURFACING
 May cause excessive bleeding
 Often require time-consuming...
MEMS SKIN RESURFACINGTOOLS
 They can be used to remove raised skin lesions as well as lesions upto
certain depths.
 Thes...
CHALLENGES
 Life of the device.
 Retrieving data out of the device.
 Resist drifting along with the body fluids.
 Limi...
CONCLUSION
MEMS technology is a tool for enabling the
scaling of devices useful in biomedical
engineering but now Nanotech...
PRESENTED BY PRAVEENVAISHNAV
PRESENTED BY PRAVEENVAISHNAV
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Nano.praveen

Published on: Mar 3, 2016
Published in: Engineering      Technology      Business      
Source: www.slideshare.net


Transcripts - Nano.praveen

  • 1. GUIDED BY: PRESENTED BY : DR. P.C. BAPNA PRAVEEN VAISHNAV COLLEGE OF TECHNOLOGY & ENGINEERING UDAIPUR (RAJ.) SEMINAR PRESENTATION ON MEMS AND NANOTECHNOLOGY Department of Electronics & Communication
  • 2. MEMS AND NANOTECHNOLOGY PRESENTED BY PRAVEENVAISHNAV
  • 3. WHAT IS MEMS  Micro(small)  Electro(electric or electronic components)  Mechanical(mechanical components)  Systems(integrated, system) PRESENTED BY PRAVEENVAISHNAV
  • 4.  MEMS stands for Micro Electro Mechanical Systems.  It is a technique of combining Electrical or electronics and Mechanical components together on a chip, to produce a system of small dimensions .. PRESENTED BY PRAVEENVAISHNAV
  • 5. Where do you find MEMS?  Printers ◦ High DPI inkjets  Projectors  Micro-Mirrors from Texas Instruments  Cell Phones ◦ Microphones used in most new cell phones  Automobiles PRESENTED BY PRAVEENVAISHNAV
  • 6. Why MEMS  Small Size ◦ Typically 0.1-100um feature size Human Hair thickness ~ 50um Red Blood Cells ~ 10um
  • 7. Why MEMS  Low cost ◦ Use existing IC fabrication technology ◦ Made primarily on Silicon Wafers PRESENTED BY PRAVEENVAISHNAV
  • 8. Why MEMS  Favorable scaling for a lot of applications ◦ Flow-rate sensors ◦ Electrostatics ◦ Magnetism ◦ Many others  Minimize energy and materials used in manufacturing  Improved reproducibility  Improved accuracy and reliability  Increased selectivity and sensitivity PRESENTED BY PRAVEENVAISHNAV
  • 9. MATERIAL USED  SILICON  POLYMERS  METALS  CERAMIC PRESENTED BY PRAVEENVAISHNAV
  • 10. APPLICATIONS OF MEMS  Accelerometers  Magnetometers  Microphones  Micro-Fluidics  RF-MEMS  Biomedical  Bridge to Nanotechnology PRESENTED BY PRAVEENVAISHNAV
  • 11. DISADVANTAGES OF MEMS  Farm establishment requires huge investments  Micro-components are Costly compare to macro-components  Design includes very much complex procedures  Prior knowledge is needed to integrate MEMS devices PRESENTED BY PRAVEENVAISHNAV
  • 12. WHA IS NANOTECHNOLOGY PRESENTED BY PRAVEENVAISHNAV
  • 13. PRESENTED BY PRAVEENVAISHNAV  Nanotechnology is the technology of arranging atoms and molecules in a material.  This allows to alter the properties of a material and build structures of desired features.  Nanotechnology makes it possible to manufacture devices 80,000 times smaller than the thickness of human hair !!
  • 14. PRESENTED BY PRAVEENVAISHNAV A simple analogy..  The atoms in an object can be compared to the blocks in a building game.  In a building game, the blocks can be arranged to create different looking structures.  Similarly, atoms can be arranged differently to produce a multitude of devices. This forms the basis of nanotechnology.
  • 15. PRESENTED BY PRAVEENVAISHNAV To create and use materials, devices, and systems with fundamentally new properties and functions because of their small structure GOAL OF NANOTECHNOLOGY
  • 16. EFFECT PRESENTED BY PRAVEENVAISHNAV
  • 17. PRESENTED BY PRAVEENVAISHNAV
  • 18. MEMS AND NANOTECHNOLOGY IN MEDICAL APPLICATIONS PRESENTED BY PRAVEENVAISHNAV
  • 19. BENEFITS IN MEDICAL APPLICATIONS  Small volume of reagent samples (like blood), required for analysis.  Low power consumption.  Less invasive, hence less painful.  Integration permits a large number of systems to be built on a single chip.  Batch processing can lower costs significantly. PRESENTED BY PRAVEENVAISHNAV
  • 20. CLASSIFICATION OF BIOLOGICAL MEMS DEVICES  Biomedical MEMS – deals “in vivo”, within the host body. → precision surgery → Biotelemetry → Drug delivery → Biosensors and other physical sensors  Biotechnology MEMS – deals “in vitro”, with the biological samples obtained from the host body. → Diagnostics → gene sequencing → Drug discover → pathogen detection PRESENTED BY PRAVEENVAISHNAV
  • 21. MEMS Sensors MEMS sensors in the biomedical field maybe used as:  Critical sensors used during operations.  Long term sensors for prosthetic devices.  Sensor arrays for rapid monitoring and diagnosis at home. PRESENTED BY PRAVEENVAISHNAV
  • 22. PRESENTED BY PRAVEENVAISHNAV MEMS and nanotechnology in precision surgery
  • 23. Micro-surgical tools  Present day surgeons operate within a domain prohibited by the mobility and control of the surgical tools at hand.  MEMS surgical tools provide the flexibility and accuracy to perform precision surgery. PRESENTED BY PRAVEENVAISHNAV
  • 24. ULTRASONIC MEMS CUTTING TOOL  These tools make use of piezoelectric materials attached to the cutter.  Consist of micro channels to flush out the fluid while cutting.  Can be used to cut tough tissues, like the hardened lenses of patients with cataract PRESENTED BY PRAVEENVAISHNAV
  • 25. MEMS driven scalpels  Precise control of the scalpel is an important requirement in any surgery.  MEMS piezoelectric motor help to accurately position the scalpel.  MEMS pressure sensors incorporated on the scalpel, can help to measure the force exerted on the area operated upon.Accordingly, the scalpel can he handled. PRESENTED BY PRAVEENVAISHNAV
  • 26. MEMS microneedles  This patch is applied to the skin and drug is delivered to the body using micropumps.  These micropumps can be electronically controlled to allow specific amounts of the drug and also deliver them at specific intervals.  Microneedles are too small to reach and stimulate the nerve endings, and hence cause no pain to the body. gtresearchnews.gatech.edu/ newsrelease/NEEDLES.htm PRESENTED BY PRAVEENVAISHNAV
  • 27. MEMS and endoscopy PRESENTED BY PRAVEENVAISHNAV  What is endoscopy ?  A diagnostic procedure which involves the introduction of flexible device into the lower or upper stomach tract for diagnostic or therapeutic purposes.  Conventional endoscopes  Can be used to view only the first third of the small intestine.  Require sedation of patient is uncomfortable procedure
  • 28. ADVANTAGES OF MEMS PILL  Requires no sedation  Can show a view of the entire small intestine  Can aid in early detection of cancer PRESENTED BY PRAVEENVAISHNAV
  • 29. Smart Pill  A MEMS device that can be implanted in the human body.  Consists of ◦ biosensors ◦ Battery ◦ Control circuitry ◦ Drug tank  The biosensors sense the substance to be measured, say insulin.  Once this quantity falls below a certain amount required by the body, the pill releases the drug. PRESENTED BY PRAVEENVAISHNAV
  • 30. Working of this magic pill !  The pill can be taken like any normal tablet.  Once within the body, the pill's sensors sample body fluids and pick up "meaningful patient data" such as temperature, dissolved oxygen levels and pH.  The pill is expected to retrieve all data over a 12-hour period and disposed off, once excreted.  This data is transmitted wirelessly to a card attached to the wrist of the individual. PRESENTED BY PRAVEENVAISHNAV
  • 31. SKIN RESURFACING  Skin resurfacing is a form of cosmetic surgery that is often used to aesthetically enhance the appearance of wrinkles, skin lesions, pigmentation irregularities, moles, roughness, and scars. Conventional resurfacing techniques involve the use of :  Dermabraders – devices or tools used in plastic surgery.  Chemical peels – chemicals such as glycolic acid. PRESENTED BY PRAVEENVAISHNAV
  • 32. DRAWBACKS OF THE CONVENTIONAL APPROACHES IN SKIN RESURFACING  May cause excessive bleeding  Often require time-consuming procedures  Require multiple sessions.  Furthermore, chemical peels cannot be used for removal of lesions with significant depth. PRESENTED BY PRAVEENVAISHNAV
  • 33. MEMS SKIN RESURFACINGTOOLS  They can be used to remove raised skin lesions as well as lesions upto certain depths.  These MEMS structures are packaged onto rotary elements and used over the affected areas.  The debris can then be sucked out using a suction pump. PRESENTED BY PRAVEENVAISHNAV
  • 34. CHALLENGES  Life of the device.  Retrieving data out of the device.  Resist drifting along with the body fluids.  Limited options  Packaging  Trained person is required PRESENTED BY PRAVEENVAISHNAV
  • 35. CONCLUSION MEMS technology is a tool for enabling the scaling of devices useful in biomedical engineering but now Nanotechnology will beat MEMS. Nanotechnology is an emerging technology which will rapidly transform all the fields in the near future. PRESENTED BY PRAVEENVAISHNAV
  • 36. PRESENTED BY PRAVEENVAISHNAV
  • 37. PRESENTED BY PRAVEENVAISHNAV

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