New Invention Profile
| Publication No: | IN202211039599 [India] | Application No: | 202211039599 |
| Title: | A process for the synthesis of fluorescent silica nanoparticles from fly ash | ||
| Publication Date: | 12-01-2024 | File Date: | 08-07-2022 |
| Inventor(s): | Vikram Singh; Hridesh Agarwalla; Reginald Ebhin Masto; Manish Kumar | ||
| IPC Classification: | B82Y30/00, C09K11/06, H01L51/00, C08G83/00, G01N21/64 | ||
| Abstract: | The present invention relates to one-step hydrothermal synthesis of water-soluble, crystalline, blue-emitting, fluorescent amine-functionalized silica nanoparticles (SiNPs) from coal fly ash. Tertiary amine (trimethylamine) was used for the preparation of amine-functionalized fluorescent SiNPs particularly to enhance the fluorescence property. The FESEM and TEM study showed that the diameter of SiNPs is in the range of 5-15 nm with spherical morphology. The XPS and FTIR study revealed the presence of amine groups at the surface of SiNPs. The SiNPs exhibited blue fluorescence with an emission maximum at 454 nm at an excitation wavelength of 370 nm in an aqueous medium. They displayed excitation-dependent emission property. The SiNPs were functionalized with amine group that enable their use in biomedical applications such as imaging and targeted drug delivery. They are also suitable for other applications such as sensing, light-emitting device and light-harvesting. | ||
CSIR-Central Institute of Mining and Fuel Research[CSIR-CIMFR]
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: director[at]cimfr[dot]res[dot]in
:91-326-2296023
:https://www.cimfr.nic.in
Industrial Applications
Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes]
Materials Processes [Materials]
Nanomaterials [Materials]