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![Table 1 e Current status of nanotechnology-enabled food products.
Sector Application Nanomaterials Manufacturer Current status Note Reference
Food processing Color additives TiO2 Exempt from <1% by weight of the food [41]
certification
Synthetic iron oxide Exempt from <0.25% (for dogs and cats) and 0.1 [41,42]
certification (for human) % by weight of the
finished food
Additive or polymer ZnO Authorized by EC 10/ Authorization based on [43]
production aid Iron oxide 2011 conventional particle size
Aluminium oxide
Silicon dioxide
Cobalt oxide
Manganese oxide (E530)
Titanium nitride No migration reported. Only to be
used in PET bottles up to 20 mg/kg
Carbon black Authorized by EC 10/ <2.5% w/w in the polymer
2011; no longer
authorized by the
U.S. FDA as additives
Preservatives Silver-silica Nanox Intelligent FCS Inventorya
FCN No. 1235. <4 ppm by weight of [44]
Materials silver as an antimicrobial agent
blended into polymers
Flavor carrier Silicon dioxide (E551d
) Authorized by EC <10,000 mg/kg, excluding foods for [45]
1334/2008 infants and young children
Marking fruit and Silicon dioxide (E551) Exempt from <2% of the ink solids [41]
vegetables certification
Anticaking agents Silicon dioxide (E551) REGb
<2% by weight of the food [46]
Nutritional dietary Copper oxide Approved for animal feed [47]
supplement Iron oxide
ZnO GRASc
Food contact packaging Pesticides detection Zinc Oxide QDs R&D [33]
Pathogens detection Magnetic nanosensors R&D [34,35]
Plasmonic nanosensors [36]
Fluorescent nanosensors [37]
Toxins detection Fluorescent nanosensors R&D [38]
Plasmonic nanosensors [39]
Phosphorescent QDs [40]
Edible film/coating Chitosan/Nano-Silica Coating Tested on Longan fruit [48]
Poly-ε-caprolactone Tested on fresh-cut “Red Delicious” [49]
apples
Nanoemulsion/Quinoa Protein/ Tested on fresh strawberries [32]
Chitosan
Bio-nano-hybrid pectins and LDH- Tested on fresh apricots [30]
salicylate
Nanoemulsion with lemongrass R&D Tested on fresh-cut Fuji apples [31]
essential oil](https://image.slidesharecdn.com/naosensorsppt-190909132138/75/Naosensors-ppt-22-2048.jpg)
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Naosensors ppt
- 1. NANOSENSORS PRESENTED BY:- SAKSHIDAVE PRK18BT3010
- 2. WHAT ARE SENSORS?? •A sensor is a transducer that converts a measurement (a quantity or parameter) into a signal that carries information. • Nanosensors are tiny Sensors in the size of a few nanometers 10 TO 100 nanometer. • They can detect the presence of nanomaterial or molecules in that size and even smaller.
- 3. HISTORY OF NANOSENSORS •In 1990 Dr. Wolter founded his own company called NANOPROBE. After further path breaking developments NANOPROBE became the first company worldwide to satisfy the emerging need for high quality AFM sensors. • 1995 "Dr.-Rudolf-Eberle Award", innovation award of the German State of Baden-Wurttemberg (one of the high-tech centres in Germany) for exemplary achievements • 1995 Innovation prize awarded by the Germany Industry • 1999 "Georg Waeber innovation prize" awarded by the society for the promotion of microelectronics • October 2002 NANOSENSORS integrated into the Swiss-based NanoWorld AG. • 2003 NANOSENSORS™ introduces the AdvancedTEC™, a revolutionary new AFM probe type that allows precise positioning • 2007 NANOSENSORS™ launches new Silicon MFM Probe Serie
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- 7. WORKING OF BIOSENSOR •A biosensor is a measurement system for the detection of an analyte that combines a biological component with a physicochemical detector and a nanobiosensor is a biosensor that measures the signal on the nanoscale size. • The interaction of the analyte with the bioreceptor is designed to produce an effect measured by the transducer, which converts the information into a measurable effect, such as an electrical / electronic signal.
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- 9. APPLICATIONS OF NANOBIOSENSORS •Medicinal uses of nanosensors mainly revolve around the potential of nanosensors to accurately identify particular cells or places in the body in need. By measuring changes in volume, concentration, displacement, velocity, gravitational, electrical and magnetic forces, pressure or temperature of cells in a body, nanosensors may be able to distinguish between and recognize certain cells, most notably those of cancer, at the molecular level in order to deliver medicine or monitor development to specific places in the body. In addition, they may be able to detect macroscopic variations from outside the body and communicate these changes to other nanoproducts working within the body.
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- 13. APPLICATIONS • To detectvarious chemicals in gases for pollution monitoring • For medical diagnostic purposes either as bloodborne sensors or in lab-on-a- chip type devices • To monitor physical parameters such as temperature, displacement and flow • To monitor plant signaling and metabolism to understand plant biology • To study neurotransmitters in brain for understanding neurophysiology.
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- 16. 16 Applications of Nanosensors Poroussilicon gas sensor. Novel Gas Sensors Based on Porous Silicon Offer Potential for Low- Voltage, Low-Cost Sensor Arrays Integrated with Electronics Developed by researchers at the Georgia Institute of Technology
- 17. 17 Conclusions Existing nanosensors haverealistic applications Current envisioned nanosensors are still based on macrosensing techniques that are enhanced or miniaturized Enabling nanotechnology and future nanosensors will be possible with the development of nanoelectronics, and integratable nanodevices Nanosensors will ultimately have an enormous impact on our ability to enhance energy conversion, control pollution, produce food, and improve human health and longevity.
- 19. • Consumers increasinglyneed to know what ingredients or components are in the product and how the product should be stored, used, and discarded after use. Smart tags and stickers, for example, will be able to communicate directly with the customer via thin film devices that provide visual information. Many companies have deployed IP solutions on the market. • RipeSense is the first intelligent sensor label that changes color to indicate the ripeness of the fruit. It works through the reaction of the aromas released by the fruit as it ripens; initially it is red and then graduates to orange and finally yellow, depending on the selection of the desired level of maturity when it comes to eating the fruit. Read the sensor
- 20. Nanosensors to detecthumidity or temperature changes due to moisture ; sensor for detecting Escherichia coli in a food sample; biosensor for instantly detecting Salmonella in foods. The IP incorporating nanosen- sors will have great benefits for the food industry. These NM in the form of tiny chips invisible to the human eye are embedded in food or in containers, for use as electronic bar code, which allows for the monitoring of food in all its phases (production, processing, distribution, and consump- tion).
- 22. Table 1 eCurrent status of nanotechnology-enabled food products. Sector Application Nanomaterials Manufacturer Current status Note Reference Food processing Color additives TiO2 Exempt from <1% by weight of the food [41] certification Synthetic iron oxide Exempt from <0.25% (for dogs and cats) and 0.1 [41,42] certification (for human) % by weight of the finished food Additive or polymer ZnO Authorized by EC 10/ Authorization based on [43] production aid Iron oxide 2011 conventional particle size Aluminium oxide Silicon dioxide Cobalt oxide Manganese oxide (E530) Titanium nitride No migration reported. Only to be used in PET bottles up to 20 mg/kg Carbon black Authorized by EC 10/ <2.5% w/w in the polymer 2011; no longer authorized by the U.S. FDA as additives Preservatives Silver-silica Nanox Intelligent FCS Inventorya FCN No. 1235. <4 ppm by weight of [44] Materials silver as an antimicrobial agent blended into polymers Flavor carrier Silicon dioxide (E551d ) Authorized by EC <10,000 mg/kg, excluding foods for [45] 1334/2008 infants and young children Marking fruit and Silicon dioxide (E551) Exempt from <2% of the ink solids [41] vegetables certification Anticaking agents Silicon dioxide (E551) REGb <2% by weight of the food [46] Nutritional dietary Copper oxide Approved for animal feed [47] supplement Iron oxide ZnO GRASc Food contact packaging Pesticides detection Zinc Oxide QDs R&D [33] Pathogens detection Magnetic nanosensors R&D [34,35] Plasmonic nanosensors [36] Fluorescent nanosensors [37] Toxins detection Fluorescent nanosensors R&D [38] Plasmonic nanosensors [39] Phosphorescent QDs [40] Edible film/coating Chitosan/Nano-Silica Coating Tested on Longan fruit [48] Poly-ε-caprolactone Tested on fresh-cut “Red Delicious” [49] apples Nanoemulsion/Quinoa Protein/ Tested on fresh strawberries [32] Chitosan Bio-nano-hybrid pectins and LDH- Tested on fresh apricots [30] salicylate Nanoemulsion with lemongrass R&D Tested on fresh-cut Fuji apples [31] essential oil
- 23. • References:- 1. GuillermoFuertes et. al; Intellligent Packaging System: Sensors and Nanosensors To Monitor Food Quality And Safety; Hindawi Publishing Corporation; Journal Of Sensors; Volume 2016 2. Xiaojia He et al; The Current Application Of Nanotechnology In Food And Agriculture; Sciencedirect; Journal Of Food And Drug Analysis; 3rd December 2018 url:- https://youtu.be/YhPnPjvbGLI