%0 Journal Article %T Nanoscale synthesis of polyoxovanadate organic-inorganic hybrid for naked-eye dopamine detection %J Nanochemistry Research %I Iranian Chemical Society %Z 2538-4279 %A Moghzi, Faezeh %A Soleimannejad, Janet %D 2022 %\ 01/01/2022 %V 7 %N 1 %P 1-8 %! Nanoscale synthesis of polyoxovanadate organic-inorganic hybrid for naked-eye dopamine detection %K Organic-inorganic hybrid %K Polyoxovanadates %K Nanomaterials %K Optical sensing %K Dopamine %R 10.22036/ncr.2022.01.001 %X Decavanadate based compounds as a class of polyoxometalates family are known for their wide range of applications in chemical, biological, and physical sciences. Considering the size-dependent chemical properties of polyoxometalates and the unique properties of decavanadates, the nanoscale (HNic)6[V10O28].H2O (1), an organic-inorganic hybrid compound was synthesized using ultrasound and in the presence of a weak solvent. The nanostructures were characterized by FT-IR spectroscopy, powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and elemental analysis. The results showed that by increasing the amount of the weak solvent, the size and crystallinity of nanoparticles decreased. Optical studies revealed a green emission with a maximum at 530 nm from nanoscale 1 which is assigned to O→V charge transfer transition and it was used for dopamine (DA) detection. Interestingly, nanoscale 1 catalyzed the in-situ formation of polydopamine nanoparticles, the formation of which decreased the fluorescence intensity of nanoscale 1 which was successfully utilized for naked-eye dopamine molecules detection. %U http://www.nanochemres.org/article_149864_3ef76526c32f375b359c5e1131dbd8ab.pdf