New Invention Profile
| Publication No: | IN202311018885 [India] | Application No: | IN202311018885 |
| Title: | NANOPROBE MODIFIED PAPER DEVICE FOR DETECTION OF FOOD AND WATER CONTAMINANTS AND METHOD OF PREPARATION THEREOF | ||
| Publication Date: | 20-09-2024 | File Date: | 16-03-2023 |
| Inventor(s): | Suman Singh; Mayank Garg; Amandeep Kaur; Neelam Vishwakarma | ||
| IPC Classification: | G01N 33/543, B22F 9/24, C02F 1/44, C02F 101/30, B82Y 40/00 | ||
| Abstract: | The invention describes the green synthesis of silver nanoparticles for application in detection of food and water contaminants like pesticides, antibiotics or heavy metals. Detection has been performed using low cost nanoprobe modified paper devices. Green synthesis favors minimal use of chemicals and hence contribute towards environment sustainability. Green synthesis has been achieved by using combination of naturally available light and plant extract, with minimal synthesis time and silver precursor concentration. Plant extract acted as reducing & stabilizing agent whereas sunlight is expected to provide sufficient heat/energy for reaction initiation. In this process, very low concentration of silver precursor has been used and entire synthesis could be completed within 2 minutes. Further, low cost Whatman filter paper was used to devise the multianalyte detecting device. Use of paper for device fabrication becomes economical and environment friendly. The contaminants detected in this invention are pesticides, antibiotics and heavy metals in the range of 1 ppb to 500. Figure 5. |
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| Startup Options: | ADVANTAGES 1. The invention reports green synthesis of silver nanoparticles (gAgNPs) using combination of plant extract and sunlight, with no additional chemical reaction. 2. Combination of neem leaves and sunlight is not reported in the published data (to the best of our knowledge) and this combination resulted in fast synthesis 3. Use of simple Whatman paper with no chemical treatment for fabrication of paper device adds economical value to the device. 4. Detection range is achieved in ppb range (1 ppb to 500 ppb) for multiple water contaminants (Pesticides, antibiotics & heavy metals) and test is rapid with very small sample volume requirement. 5. Further, since the detection is colorimetric, no additional instrument is required for data analysis. |
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Industrial Applications
CleanTech [Chemistry, Chemical Processes]
Diagnostics [Medical Devices and Diagnostics]
Nanomaterials [Materials]