anthony catalano
Download
Skip this Video
Download Presentation
Biosensors

Loading in 2 Seconds...

play fullscreen
1 / 6

Biosensors - PowerPoint PPT Presentation


  • 489 Views
  • Uploaded on

Anthony Catalano. Biosensors. What are Biosensors?. Any device that analyzes a biological compound into a measurable signal Composed of a bioreceptor, transducer, and an electronic peripheral. Composition of Biosensors.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Biosensors' - chidi


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
what are biosensors
What are Biosensors?
  • Any device that analyzes a biological compound into a measurable signal
  • Composed of a bioreceptor, transducer, and an electronic peripheral
composition of biosensors
Composition of Biosensors
  • Bioreceptor: Part of device that interacts with a biological material to identify and interact with a target molecule
  • Transducer: Part of the device that turns the target molecule into a measured signal
  • Electronic Peripheral: Turns the measured signal into a graphical user interface (GUI) utilizing microprocessors
  • Enzymes, Antibodies, or nucleic acids.
  • Piezoelectric, Thermal, Electrochemical, and Optical
  • LED Display
transducers
Transducers
  • Piezoelectric: crystal detector uses the change of frequency to calculate change in mass
  • Thermal: measures change in heat (exothermic, endothermic)
  • Electrochemical: (Amperometric, or potentiometric) uses electrodes to measure current
  • Optical: uses Surface Plasmon Resonance (SPR), or reflectance to identify various biological molecules
  • Measures Mass
  • Measures heat, requires large sample size, complicated devices
  • Amperometric are among the most common transducers for biosensors
  • Great for identifying antigens, or cancerous cells in a solution
current applications and areas of improvement
Current Applications and Areas of Improvement

Current Applications

  • Lab-on-a-chip
  • Pollutant Control
  • Patient Diagnosis
  • Detection of harmful pathogens, bacteria, toxic compounds

Future

  • Disposable
  • Low Cost
  • Increased Sensitivity
  • Improved Microprocessors
  • Multipurpose
  • Environmental friendly
resources
Resources

1. Pohanka, Miroslave. "Electrochemical

Biosensors – Principles and Applications."

Journal of Applied Biomedicine (2008): 58-62.

Web. 20 Nov. 2012.

2. Mutharasan, Raj. "Biosensors." Engineering

Biotechnology. N.p., n.d. Web. 20 Nov. 2012.

<http://www.gatewaycoalition.org/files/Hidde

n/sensr/ch1/1_1f.htm>.

3. Kumar, Ashok. "Biosensors Based on

Piezoelectric Crystal Detectors: Theory and

Application." Department of Mechanical

Engineering and Center for Microelectronics

Research (2010): 1-6. Web.

http://www.tms.org/pubs/journals/JOM/0010/

Kumar/Kumar-0010.html

4. Dey, D., and T. Goswami. "Optical Biosensors:

A Revolution Towards Quantum Nanoscale

Electronics Device Fabrication." Journal of

Biomedicine and Biotechnology 2011.348218

(2011): 0-7. Web. 20 Nov. 2012.

<http://http://www.hindawi.com/journals/jbb

/2011/348218/>.

ad