The document discusses the potential of nanotechnology in enhancing food and agriculture sectors through improved productivity and efficient use of resources. It highlights the role of nanosensors for real-time detection of harmful substances in agricultural settings, as well as their applications in diagnostics and environmental monitoring. While nanotechnology offers promising advancements, challenges related to environmental impacts and the need for rapid, cost-effective solutions remain.

1. Submitted To :
Awanish Dubey sir
5th SEM

2. Introduction
• Food and agriculture sectors - promising area - sustainability and economic growth
of a country.
• With limited availability of land and water resources, growth in agriculture can be
achieved only by increasing productivity through good agronomy and supporting it
with an effective use of modern technology.
• Nanotechnology based sensing gained enormous momentum and provided broad
spectrum application in food and agriculture sector
• Implementing nanotechnology - provided a new edge to the agrotechnology,
improved irrigation and efficient delivery of agrochemicals like fertilizers,
herbicides and pesticides, and enhanced the food production and processing,
packaging and storage.

3. • Major portion of the research in agricultural nanotechnology is in
the area of degradation of harmful pesticides by converting them
into harmless and useful components such as minerals and water.
• Nanosensor-usefull for in-field, on-line and real-time detection of
pesticides, pathogens, toxic materials, proteins, antibiotics, odours
creating bacteria, microbes, etc. in soil, air, water, food, plants and
animals.
• Nanotechnology puts the impetus to revolutionize the area of
diagnostics in health, medicine, food, environment, and agriculture
sector, transitioning theoretical aspects into the practical output.

4. “An extremely small device capable of detecting and responding
to physical stimuli with dimension in the order of one billion of a meter”
Physical stimuli: biological and chemical substances, displacement,
motion, force, mass, acoustic, thermal and electromagnetic. It collects and
measures data regarding some property of a phenomenon, object, or material.
• Nanomaterials and nanosensors increase sensitivity and detection level to
pico-, femto-, atto- and even zepto- scales (10-12-10-21) – this facilitates helps
in early detection.
Nano Sensor

5. What is nanomaterial?
• Materials, whether of natural or manufactured origin, possess
external dimensions in the range of 1-100nm.
• Nanomaterials
– Fertilizer,
– Plant protection things – pesticides, fungicides, weedicides
– Plant pathogen detection tools

7. Feed back
Environment
Sensing Actuating
Temperature,
pressure,
electrical field,
magnetic field,
EM wave,
position,
acceleration,
chemical
environment
Cooler/heater
Deformation,
Defogger,
Magnetization,
Transmission,
polarization,
Synchronization,
Mechanical
damping,
Chemical
adjustment
WORKING PRINCIPLE OF NANOSENSOR

8. Type of nanosensors
Optical nanosensor
Ambient Light
Nanosensors
Proximity
Nanosensors
Enzymatic
Interaction
DNA Interaction
Antibody/Antigen
Interaction
Physical nanosensor
Chemical nanosensor
Biological nanosensor
Molecular
Concentration
Chemical
Composition
Displacement
Mass
Force
Pressure

9. Proximity sensors -------------> Presence of an object or motion
Ambient light sensors ------------> Detection for a ambient brightness
Biosensor ------------> measure specific analyte
Chemical sensor -------------> Chemical Composition , Molecular Concentration
Physical sensor -------------> Physical stimuli
Physical sensor
Chemical sensor

10. Current nanosensor devices
• Nanostructured materials – e.g. porous silicon
• Nanoparticles
• Nanoprobes
• Nanowire nanosensors
• Nanosystems
- cantilevers, NEMS, mostly theoretical
porous silicon
Nanowire
Nanoprobe
Nanomaterials
cantilever

12. Nanosensor applications in food and
agriculture industry

13. Detect plant disease Physiological changes
Soil temperature and Moisture precision farming
Gas nanosensors

14. Disadvantage
• Understanding the relationship between nanoparticles and the environment forms an
important area of research.
• There are several mechanisms by which nanoparticles are believed to affect the
environment negatively.
• some nanoparticles are able to reduce the functioning of (and may even disrupt or
kill) naturally occurring microbial communities, as well as microbial communities
that are employed in industrial processes (e.g., those that are used in sanitation
processes, including sewage treatment).

15. Conclusion
• Nanosensors could play an important role in providing powerful analytical tools to
the agricultural diagnosis sector,
• Rapid, low cost, high sensitivity and specificity measurements in field situations are
required.
• A wide range of transducers is also available to engineer new Nanosensing devices.
• The promise shown by biosensor technology is very real, however there are some
technological obstacles that need to be overcome.