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    Basic Information

Technology developed: Progressive Cryoaggregation of Gold Nanoparticles and its use in Coldness Indicators with Shade Card (TP19762294897)
Category:
Details of Inventor(s):
Inventor Institution/Organization/Company Department Designation
Ashok Kumar IIT Kanpur BSBE Professor
Ankita Mishra IIT Kanpur BSBE Post Doc
Shaazia Shaikh IIT Kanpur BSBE Project Scientist
Technical Application Area: Other
If 'Other', please specify:
Biomedical Engineering
Please give more details of new technical application area:
Organization(s):
Indian Institute of Technology (IIT) Kanpur
Affiliated Ministry: Ministry of Education
Type of technology development: Indigenous
Does the technology help in replacing any import items currently
procured from outside India?
Yes
Does the technology have export potential? Yes
Category of Technology developed: Immediate Deployment
Stage of Development: Field Test
Please describe in detail including the TRL Level:
Field test is being developed

    Abstract:

Applications: Gold nanoparticles (AuNPs) display inherent optical properties depending on the size, shape and concentration of the nanoparticles in suspension. The current invention, investigates progressive cryoaggregation of AuNPs, whereby the optical properties of partially frozen AuNPs change as a function of - time. The suspension of AuNPs on exposure to sub-zero temperature starts to aggregate, although the nanoparticles do not aggregate at once. This invention correlates the changes observed in the optical properties of the nanoparticle suspension upon cryoaggregation, with the abuse (exposure to freezing) caused to the freeze sensitive product associated with the indicator.
Advantages: Not all but several food grade products, like - food emulsions (mayonnaise and creams), soft cheeses (like cream cheese, ricotta), eggs, salad greens, cucumbers etc. are freeze sensitive i.e. freezing the at sub-zero temperature affects their, quality with reference to taste and texture. Similarly, numerous medicinal ointments, lotions, eye or ear drops are recommended to be stored at 2-8 degree C and strictly storage at sub-zero temperatures is prohibited. Likewise, various analytical grade chemicals and reagents, are labelled for optimum storage at 2-8 degree C, with no freezing at all. Consequently, all these and several other products which are freeze sensitive require to be stored with coolness indictors for maintaining optimum efficiency post-delivery. Already available coolness indicators in the market involve use of AuNPs to investigate temperature abuse on the basis of colour change due to either none or complete aggregation

    Technology Inputs:

Imported Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
NA
Indigenous Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
NA
Imported Raw Materials:
Raw Materials Year ITC-HS Code
NA
Indigenous Raw Materials:
Raw Materials Year ITC-HS Code
NA
Existing R&D Facilities used:
Facilities Year ITC-HS Code
NA

   Patents & Publications:

Patents:
Filed Patents (No.) Granted Patents (No.) Year
1 0 2020-21
Publications:
Submitted (No.) Published (No.) Year
0 1 2020-21

    Commercialization Potential:

Who are the Potential Licensees? Vanprob Solutions, LCR Hallcrest, Temptime Corporation, Thinfilm
What commercially available products address
the same problem?
Company Product Problem Addressed
Would you like to develop this invention further with
corporate research support?
Yes
Would you be interested in participating in cluster based
programs for commercialization research or business
planning for your invention?
Yes
      Submitted by: J.G. Rao Date of Submission: 10-3-2022



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