Fluorescence sensing of biological tissue structures using Mn-doped CdS nanoparticles as biomarkers

2009 ◽  
Author(s):  
Volodymyr I. Fediv ◽  
Andriy I. Savchuk ◽  
Galyna Yu. Rudko ◽  
Igor S. Davydenko ◽  
Tetyana A. Savchuk ◽  
...  
Keyword(s):  
Biological Tissue ◽  
Cds Nanoparticles ◽  
Fluorescence Sensing ◽  
Tissue Structures ◽  
Mn Doped

scholarly journals Synthesis and Characterization of Sodium Bis(2-ethylhexyl) Sulfonsuccinate (AOT) Capped Pure and Mn-Doped CdS Nanoparticles

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
D. Venkatesan ◽  
D. Deepan ◽  
J. Ramkumar ◽  
S. Moorthy Babu ◽  
R. Dhanasekaran
Keyword(s):  
Thin Films ◽  
Magnetic Semiconductors ◽  
Dilute Magnetic Semiconductors ◽  
Transition Metal Ions ◽  
Hexagonal Structure ◽  
Cds Nanoparticles ◽  
Sem Images ◽  
Semiconducting Properties ◽  
Mn Doped

CdS nanoparticles and thin films are well known for their excellent semiconducting properties. When transition metal ions are doped into the CdS, it exhibits magnetic properties in addition to semiconducting properties and they are termed as dilute magnetic semiconductors (DMSs). In this paper, we discuss the preparation of sodium bis(2-ethylhexyl) sulfonsuccinate (AOT) capped CdS nanoparticles and thin films doped with magnetic impurity Mn. Sodium bis(2-ethulexyl) sulfonsuccinate (AOT), capping agent promotes the uniform formation of nanoparticles. Optical characterizations are made using the UV-Vis spectrometer, PL, and FTIR. XRD shows the hexagonal structure of the CdS. SEM images and EDS measurements were made for the thin films. EPR shows the clear hyperfine lines corresponding to Mn2+ion in the CdS nanoparticles.

Synthesis, structural and photocatalytic studies of Mn-doped CdS nanoparticles

2012 ◽  
Vol 39 (2) ◽  
pp. 645-657 ◽  
Author(s):  
Ruby Chauhan ◽  
Ashavani Kumar ◽  
Ram Pal Chaudhary
Keyword(s):  
Cds Nanoparticles ◽  
Mn Doped

Synthesis and Characterization of Mn Doped CdS Quantum Dots from a Single Source Precursor

1999 ◽  
Vol 581 ◽  
Author(s):  
M. Azad Malik ◽  
Paul O'Brien ◽  
N. Revaprasadu
Keyword(s):  
Hexagonal Phase ◽  
Tetrahedral Site ◽  
Deep Trap ◽  
Esr Spectra ◽  
Cds Nanoparticles ◽  
Near Band Edge ◽  
Single Source ◽  
High Resolution Tem ◽  
Pl Spectrum ◽  
Mn Doped

ABSTRACTCdS and Mn-doped CdS capped with TOPO (tri-n-octylphosphineoxide) have been prepared by a single source route using bis(methylhexyldithiocarbamato)cadmium(II) and manganese dichloride as precursors. The nanoparticles obtained show quantum size effects in their optical spectra with the CdS nanoparticles exhibiting near band-edge luminescence. The PL spectrum of the doped CdS nanoparticles have an emission maximum at 585 nm attributed to the 4T1-6A1 electronic transition of Mn in a tetrahedral site. However the PL spectrum changes over time (weeks) and gave a deep trap emission. The Selected Area Electron Diffraction (SAED) and X-ray diffraction (XRD) pattern show both CdS and the Mn doped CdS particles to be of the hexagonal phase. Transmission Electron Microscopy (TEM) and High Resolution TEM show well-defined images of nanosize particles with clear lattice fringes. ESR spectra and ICP results confirm the presence of Mn in the CdS nanoparticles.

scholarly journals APPLICATION OF SEMIMAGNETIC SEMICONDUCTOR NANOPARTICLES FOR VISUALISATION OF BIOLOGICAL TISSUE STRUCTURES

2010 ◽  
Vol 6 (2) ◽  
pp. 43-48 ◽  
Author(s):  
V. I. Fediv ◽  
I. S. Davydenko ◽  
A. I. Savchuk ◽  
M. M. Marchenko ◽  
T. A. Savchuk
Keyword(s):  
Biological Tissue ◽  
Semiconductor Nanoparticles ◽  
Tissue Structures

scholarly journals Manganese-Doped Zinc Oxide Nanostructures as Potential Scaffold for Photocatalytic and Fluorescence Sensing Applications

Chemosensors ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 120
Author(s):  
Deepika Thakur ◽  
Anshu Sharma ◽  
Abhishek Awasthi ◽  
Dharmender Singh Rana ◽  
Dilbag Singh ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zno Nanostructures ◽  
Zinc Oxide Nanostructures ◽  
Fluorescence Sensing ◽  
X Ray ◽  
Sensing Applications ◽  
Oxide Nanostructures ◽  
Vis Spectroscopy ◽  
Doped Zno ◽  
Mn Doped

Herein, we report the photocatalytic and fluorescence sensing applications of manganese-doped zinc oxide nanostructures synthesized by a solution combustion technique, using zinc nitrate as an oxidizer and urea as a fuel. The synthesized Mn-doped ZnO nanostructures have been analyzed in terms of their surface morphology, phase composition, elemental analysis, and optical properties with the help of scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), and UV-Visible (UV-Vis) spectroscopy. A careful observation of the SEM micrograph reveals that the synthesized material was porous and grown in very high density. Due to a well-defined porous structure, the Mn-doped ZnO nanostructures can be used for the detection of ciprofloxacin, which was found to exhibit a significantly low limit of detection (LOD) value i.e., 10.05 µM. The synthesized Mn-doped ZnO nanostructures have been further analyzed for interfering studies, which reveals that the synthesized sensor material possesses very good selectivity toward ciprofloxacin, as it detects selectively even in the presence of other molecules. The synthesized Mn-doped ZnO nanostructures have been further analyzed for the photodegradation of methyl orange (MO) dye. The experimental results reveal that Mn-doped ZnO behaves as an efficient photocatalyst. The 85% degradation of MO has been achieved in 75 min using 0.15 g of Mn-doped ZnO nanostructures. The observed results clearly confirmed that the synthesized Mn-dopedZnO nanostructures are a potential scaffold for the fabrication of sensitive and robust chemical sensors as well as an efficient photocatalyst.

Study of Hopping Conduction in Mn Doped CdS Nanoparticles

2018 ◽  
Vol 7 (5) ◽  
pp. 689-695 ◽  
Author(s):  
K. S. Rathore ◽  
Deepika ◽  
S. Shekhawat ◽  
H. Singh ◽  
N. S. Saxena
Keyword(s):  
Cds Nanoparticles ◽  
Hopping Conduction ◽  
Mn Doped
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