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Biosynthesis of luminescent CdS quantum dots using plant hairy root culture.

Borovaya MN, Naumenko AP, Matvieieva NA, Blume YB, Yemets AI - Nanoscale Res Lett (2014)

Bottom Line: Transmission electron microscopy of produced quantum dots revealed their spherical shape with a size predominantly from 5 to 7 nm.Electron diffraction pattern confirmed the wurtzite crystalline structure of synthesized cadmium sulfide quantum dots.These results describe the first successful attempt of quantum dots synthesis using plant extract. 81.07.Ta; 81.16.-c; 81.16.Rf.

View Article: PubMed Central - PubMed

Affiliation: Department of Genomics and Molecular Biotechnology, Institute of Food Biotechnology and Genomics, Natl. Acad. of Sci. of Ukraine, Osypovskogo Str., 2a, Kiev, 04123, Ukraine, marie0589@gmail.com.

ABSTRACT

Unlabelled: CdS nanoparticles have a great potential for application in chemical research, bioscience and medicine. The aim of this study was to develop an efficient and environmentally-friendly method of plant-based biosynthesis of CdS quantum dots using hairy root culture of Linaria maroccana L. By incubating Linaria root extract with inorganic cadmium sulfate and sodium sulfide we synthesized stable luminescent CdS nanocrystals with absorption peaks for UV-visible spectrometry at 362 nm, 398 nm and 464 nm, and luminescent peaks at 425, 462, 500 nm. Transmission electron microscopy of produced quantum dots revealed their spherical shape with a size predominantly from 5 to 7 nm. Electron diffraction pattern confirmed the wurtzite crystalline structure of synthesized cadmium sulfide quantum dots. These results describe the first successful attempt of quantum dots synthesis using plant extract.

Pacs: 81.07.Ta; 81.16.-c; 81.16.Rf.

No MeSH data available.


Electron diffraction pattern of CdS nanoparticles. The diffraction maxima 1 and 2 corresponded to interplanar distances 0.338 nm and 0.184 nm. Such lattice imaging confirmed that the particles had wurtzite modification.
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Fig6: Electron diffraction pattern of CdS nanoparticles. The diffraction maxima 1 and 2 corresponded to interplanar distances 0.338 nm and 0.184 nm. Such lattice imaging confirmed that the particles had wurtzite modification.

Mentions: Using electron diffraction spectroscopy we obtained electron diffraction patterns of cadmium sulfide nanocrystals deposited on carbon coated copper grid (Figure 6). The diffraction maxima 1 and 2 correspond to interplanar distances 0.338 nm, 0.184 nm. This was comparable with previously reported data where the following interplanar distances were complied with CdS nanocrystals structure, indicating polycrystalline wurtzite modification [24]. In our previous research electron diffraction analysis of CdS quantum dots also confirmed wurtzite structure of cadmium sulfide nanocrystals [16]. In addition, in our early investigation [14] it was found that diffraction maxima corresponded to the interplanar distances 0,341 nm, 0,209 nm, and 0,1876 nm which are typical for wurtzite modification of CdS.Figure 6


Biosynthesis of luminescent CdS quantum dots using plant hairy root culture.

Borovaya MN, Naumenko AP, Matvieieva NA, Blume YB, Yemets AI - Nanoscale Res Lett (2014)

Electron diffraction pattern of CdS nanoparticles. The diffraction maxima 1 and 2 corresponded to interplanar distances 0.338 nm and 0.184 nm. Such lattice imaging confirmed that the particles had wurtzite modification.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4493840&req=5

Fig6: Electron diffraction pattern of CdS nanoparticles. The diffraction maxima 1 and 2 corresponded to interplanar distances 0.338 nm and 0.184 nm. Such lattice imaging confirmed that the particles had wurtzite modification.
Mentions: Using electron diffraction spectroscopy we obtained electron diffraction patterns of cadmium sulfide nanocrystals deposited on carbon coated copper grid (Figure 6). The diffraction maxima 1 and 2 correspond to interplanar distances 0.338 nm, 0.184 nm. This was comparable with previously reported data where the following interplanar distances were complied with CdS nanocrystals structure, indicating polycrystalline wurtzite modification [24]. In our previous research electron diffraction analysis of CdS quantum dots also confirmed wurtzite structure of cadmium sulfide nanocrystals [16]. In addition, in our early investigation [14] it was found that diffraction maxima corresponded to the interplanar distances 0,341 nm, 0,209 nm, and 0,1876 nm which are typical for wurtzite modification of CdS.Figure 6

Bottom Line: Transmission electron microscopy of produced quantum dots revealed their spherical shape with a size predominantly from 5 to 7 nm.Electron diffraction pattern confirmed the wurtzite crystalline structure of synthesized cadmium sulfide quantum dots.These results describe the first successful attempt of quantum dots synthesis using plant extract. 81.07.Ta; 81.16.-c; 81.16.Rf.

View Article: PubMed Central - PubMed

Affiliation: Department of Genomics and Molecular Biotechnology, Institute of Food Biotechnology and Genomics, Natl. Acad. of Sci. of Ukraine, Osypovskogo Str., 2a, Kiev, 04123, Ukraine, marie0589@gmail.com.

ABSTRACT

Unlabelled: CdS nanoparticles have a great potential for application in chemical research, bioscience and medicine. The aim of this study was to develop an efficient and environmentally-friendly method of plant-based biosynthesis of CdS quantum dots using hairy root culture of Linaria maroccana L. By incubating Linaria root extract with inorganic cadmium sulfate and sodium sulfide we synthesized stable luminescent CdS nanocrystals with absorption peaks for UV-visible spectrometry at 362 nm, 398 nm and 464 nm, and luminescent peaks at 425, 462, 500 nm. Transmission electron microscopy of produced quantum dots revealed their spherical shape with a size predominantly from 5 to 7 nm. Electron diffraction pattern confirmed the wurtzite crystalline structure of synthesized cadmium sulfide quantum dots. These results describe the first successful attempt of quantum dots synthesis using plant extract.

Pacs: 81.07.Ta; 81.16.-c; 81.16.Rf.

No MeSH data available.