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Information about NANO BIOSENSORS

Published on February 9, 2011

Author: aSGuest85534


NANO BIOSENSORS: NANO BIOSENSORS ITS USES & APPLICATIONS Presentation by: M.ROSHNA II MSc.BIOTECH BIOSENSORS: BIOSENSORS A device incorporating a biological sensing element either intimately connected to or integrated within a transducer. Recognition based on affinity between complementary structures like: enzyme-substrate, antibody-antigen and receptor-hormone complex. Selectivity and specificity depend on biological recognition systems connected to a suitable transducer. NANOTECHNOLOGY: NANOTECHNOLOGY Nanos (Gr.)- dwarf or very small Includes many fields Its the Miniature Biology Nanotechnology- manipulating matter at nanoscale. Comparison of nano-range Why NANO-BIOSENSOR?: Why NANO-BIOSENSOR? Nanoparticles have novel property. Integration of material science, molecular engineering, chemistry and biotechnology. Improve the sensitivity and specificity of biomolecule detection Efficient biomolecular recognition, pathogenic diagnosis and environment monitoring. NaNOPARTICLE: NaNOPARTICLE PROPERTIES PARTICLES USED Gold nanoparticle Carbon Nanotubes Magnetic particles Quantum dots Unique physical chemical, mechanical, magnetic and optical properties, markedly enhance the sensitivity and specificity of detection . NEED FOR NANOTECHNOLOGY: NEED FOR NANOTECHNOLOGY Allows the placement of small structures with precision , simplicity and low cost. Small particles high efficiency Leads to economic growth Enhances national security Improves the quality of life Job oppurtunities ADVANTAGE OF NANOTECHNOLOGY: ADVANTAGE OF NANOTECHNOLOGY Material Industrial Medical Stronger Computers can become a billion times faster and a million times smaller End of Illnesses (i.e. cancer, heart disease) Lighter Automatic Pollution Cleanup Universal Immunity (i.e. aids, flu) Cheaper Manufacturing at almost no cost Body Sculpting (i.e. change your appearance) Durable Precise Slide 8: TYPES OF BIOSENSOR DETECTION PRINCIPLES Optical Biosensors Electrical Biosensors Electrochemical Biosensors Nanotube Based Biosensors Viral Nanosensors Nanoshell Biosensors Nanowire Biosens ors Piezoelectric Mass Electrochemical Electric distribution Optical Light intensity Calorimetric Heat CURRENT APPLICATIONS: CURRENT APPLICATIONS Biological Applications DNA Sensors: Genetic monitoring, disease diagnosis Immunosensors: HIV, Hepatitis, other viral diseases drug testing, environmental monitoring… Cell-based Sensors: functional sensors, drug testing… Point-of-care sensors: blood, urine, electrolytes, gases, steroids,drugs, hormones, proteins, other… Bacteria Sensors: (E-coli, streptococcus, other): food industry,medicine, environmental, other. Enzyme sensors: diabetics, drug testing, other. Environmental Applications: : Environmental Applications: Detection of environmental pollution and toxicity Agricultural monitoring Ground water screening Ocean monitoring APPLICATION: APPLICATION NANO-NOSE: Food quality check using nanoparticles. Detection of various protein . For detection of diseases. Various proteins are sensed out in body fluids. Advantage: Highly sensitive 96% accuracy Quick detection Disadvantages: Disadvantages Health and safety issues Nanoparticles can cause serious illness or damage human body. Untraceable destructive weapons of mass destruction. Social & Political issues Advisability of increasing scope of the technology creates political dilemma Creates social strife through increasing wealth gap Loss of jobs (in manufacturing, farming, etc) Carbon Nanotubes could cause infection of lungs Oil & Diamonds could become worthless Atomic weapons could be more accessible and destructive FUTURE OF NANOBIOTECHNOLOGY: FUTURE OF NANOBIOTECHNOLOGY Examples of Future Use of NT Electronic Paper Nokia Morph Contact Lens FUTURE OF NANOBIOTECHNOLOGY: FUTURE OF NANOBIOTECHNOLOGY QUERIES ?: QUERIES ? QUERIES QUERIES QUERIES QUERIES QUERIES QUERIES ? ? ? ? ? ? ?

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