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DC Field | Value | Language |
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dc.contributor.author | Huerta-Aguilar, C.A. | |
dc.contributor.author | Pandiyan, T. | |
dc.contributor.author | Raj, P. | |
dc.contributor.author | Singh, N. | |
dc.contributor.author | Zanellac, R. | |
dc.date.accessioned | 2016-07-19T07:21:28Z | |
dc.date.available | 2016-07-19T07:21:28Z | |
dc.date.issued | 2016-07-19 | |
dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/79 | |
dc.description.abstract | The ligand N,N′-bis(pyridyl-2yl-methyl)ethylenediimine (PMEDI) was synthesized and then transformed into organic nanoparticles (ONPs) which were characterized by analytical methods. The ONPs were employed for the specific recognition of Zn2+ in an aqueous medium by measuring the fluorescence intensity that increased with the concentration of Zn2+ in the PMEDI solution. This proves that PMEDI-ONPs act as a chemo-sensor in detecting Zn2+ at low concentration in aqueous medium. This chemo-sensor (ONPs) is able to determine the concentration of Zn2+ ion in multi-vitamin formulations, and does so selectively for Zn2+ in the presence of other nutrient metal ions. Apparently, photo induced electron transfer (PET) works in the PMEDI-ONPs when the fluorophore is excited. For [PMEDI-Zn]2+ system, the PET is inhibited considerably by lowering the receptor HOMO energy due to the formation of a bond between the metal ion and the ligand. Due to inhibition of PET phenomenon the enhancement in the fluorescence emission of PMEDI-ONPs takes place. This is consistent with the theoretical study that the energy of the HOMO of the ligand is lowered when the [PMEDI-Zn]2+ complex is formed. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Recognition of Zn2+ | en_US |
dc.subject | Fluorescence organic nanoparticles | en_US |
dc.subject | Multivitamin analysis | en_US |
dc.title | Fluorescent organic nanoparticles (FONs) for the selective recognition of Zn2+: Applications to multi-vitamin formulations in aqueous medium | en_US |
dc.type | Article | en_US |
Appears in Collections: | Year-2016 |
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1-s2.0-S0925400515303713-main.pdf | 2.07 MB | Adobe PDF | View/Open Request a copy |
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