Nano-Indis - A Revolution In Self-Reading Indicators For Perishables

(Nanowerk News) Affordable and accurate Nano-Indis are produced by applying a layer of an etchant onto a metallized/opaque plastic film printed with one message (FRESH) on the top and the other (NOT) at the bottom which cannot be seen. A typical metallized plastic film has one 10 nm aluminum layer and one 2 nm oxide layer. When these nanomaterials are destroyed, a combined message, "NOT FRESH", appears abruptly after a predetermined time as exemplified in the video below.
By selecting proper etchants, JP Laboratories has developed a wide variety of self-explanatory Nano-Indis. They can be used to monitor (1) time as self-expiring visitor & employee ID badges, retail stickers, shipping & security labels and tickets for parking, trains, buses and sporting events, (2) temperature for doneness of microwave and ready-to-eat meals, (3) shelf-life, quality and to replace sell-by/use-by dates of foods and pharmaceuticals, (4) freezing of fresh blood, produce and vaccines, (5) thawing of frozen meat, fish, vegetables and ice cream, (6) exposure of electronic devices and dried foods to moisture/humidity, (7) sterilization of medical supplies with steam, ethylene oxide, plasma, hydrogen peroxide and dry heat, (8) toxic chemical agents, such as chlorine and ethylene oxide and (9) ionizing radiation, such as gamma/X-ray. Nano-TTI (time-temperature indicators), in the form of a packaging/sealing tape, can be used by perishable manufacturers, shippers, warehouses and supermarkets/stores to monitor the quality of perishables without opening boxes or crates.
Most of these devices are also available in a linear moving boundary format for continuous monitoring and as RFID for remote monitoring of quality and inventory simultaneously.
Nano-Indis have a rare combination of the most desired properties. They are accurate, self-reading, 100% irreversible, economical and tamper evident. Non-nano indicators are confusing because they change colors gradually, require color reference charts and explanations, and are subject to interpretation. Nano-Indis are fundamentally and functionally different from those available today and will gradually make color-changing indicators obsolete.
More detailed information (with video and animation) is provided on our website at Many of the Nano-Indis are available for licensing, please contact us for more information.
About JP Labs
JP Laboratories, Inc., develops new products/processes and licenses them to other companies for manufacturing and marketing on a royalty basis. Dr. Gordhan Patel's more than 35 years of experience in developing indicators has lead to these revolutionary Nano-Indis.
Source: JP Labs (press release)
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