Nanosensors

It Explains the types and applications of nanosensor in Medical Field

1. BY ARAVINDKUMAR B IN MEDICAL FIELD

2. SE N SOR SENSES A CT I ON TRANSDUCER CO N V ER T S I/P TO ELECTRIC SIGNAL DETECTOR DETECTS CHANGE OCC U RED WHAT IS NANO SENSOR ? NANO+SENSOR

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

4. PHYSICAL SENSORS CHEMICAL SENSORS BIOSENSORS Bio receptors Transducers Detectors

5. CANTILEVER ARRAY SENSORS NANOTUBE SENSORS NANOWIRE SENSORS

6.  CANTILEVER ARRAY SENSOR

7. WORK I NG BIO CH E M I CA L / P H Y S IC AL PROCESS MICRO ELECRO MECHANICAL SYSTEM

8. PRECISSION CANTILEVERS: 300 nm THICKNESS TOLERANCE PRECISSION RESONANCE FREQUENCY: SPECIAL CANTILEVER MOUNT EASY HANDLING: VERTICAL CHIP SIDEWALLS, OPTIONAL NON STICKING CONTAMINATION FREE STORAGE

9.  SIZE / SHAPE RECTANG U L A R SH A PE D S I L I C O N B A RS DUOSENSIS SENSORS (2 CANTILEVERS PER CHIP) OCTOSENSIS SENSORS (8 CANTILEVERS PER CHIP)

10.  FOR DIAGNOSIS OF DIABETES MELLITUS Small amounts of acetone in a patient’s breath can be detected by cantilever array sensor technique which may attribute to early diagnosis of diabetes mellitus .  FOR DETECTION OF BACTERIAS,FUNGI,VIRUSES antigens on cell membrane surface results in additional mass loading, ultra- sensitively detected by the device using nanochemical oscillator The detection sensitivity is in the order of a single bacterium corresponding to a mass of ~1 pg

11.  FOR CANCER DIAGNOSIS When the cancer-associated molecules bind to the cantilevers, changes in surface tension cause the cantilever to bend The mass detection limitation of NEMS cantilevers is improved to the enumeration of a single DNA molecule consisting of ~1600 base pairs and weighing ~1 ag (atto = 10^18).

12.  NANOTUBE SENSOR

13.  SIZE / SHAPE coated with strands of DNA could detect molecules on the order of one part per million

14. PLATFORM The Nano sensors could sniff molecules out of the air or taste them in a liquid, suggesting applications ranging from domestic security to medical detectors .

15.  NANO WIRE SENSOR

16. DNA(DETECTOR) NANOTUBE(TRANSMITTER) SINGLE S T R A NDED DNA CARBON N A NO T U BE N A NO W I R E