The effects of surface and surface coatings on fluorescence properties of hollow NaYF4:Yb,Er upconversion nanoparticles

2011 ◽  
Vol 26 (1) ◽  
pp. 70-81 ◽  
Author(s):  
Karvianto ◽  
G.M. Chow
Keyword(s):  
Surface Coatings ◽  
Fluorescence Properties ◽  
Upconversion Nanoparticles ◽  
Image Position

Abstract

Novel infection-resistant surface coatings: A bioengineering approach

MRS Bulletin ◽  
2011 ◽  
Vol 36 (5) ◽  
pp. 357-366 ◽  
Author(s):  
Xiaojuan Khoo ◽  
Mark W. Grinstaff
Keyword(s):  
Surface Coatings ◽  
Image Position

Abstract

Fluorescence properties of fluor molecules confined within nanoscale pores in a polymer matrix

2015 ◽  
Vol 5 (2) ◽  
pp. 347-352 ◽  
Author(s):  
Valery N. Bliznyuk ◽  
Ayman F. Seliman ◽  
Scott M. Husson ◽  
George Chumanov ◽  
Timothy A. DeVol
Keyword(s):  
Polymer Matrix ◽  
Fluorescence Properties ◽  
Image Position

Abstract

scholarly journals The Influence of Different Types of Upconversion Nanoparticles Surface Coatings on Neurotoxicity

2016 ◽  
Vol 8 (4) ◽  
pp. 133-142 ◽  
Author(s):  
E.V. Mitroshina ◽  
T.A. Mishchenko ◽  
M.V. Vedunova ◽  
A.V. Yudintsev ◽  
A.N. Generalova ◽  
...  
Keyword(s):  
Surface Coatings ◽  
Upconversion Nanoparticles ◽  
Different Types

Synthesis of LiYF4:Yb, Er Upconversion Nanoparticles and Its Fluorescence Properties

2014 ◽  
Vol 14 (6) ◽  
pp. 4710-4713 ◽  
Author(s):  
Liming Zhang ◽  
Zhixin Wang ◽  
Zhuoxuan Lu ◽  
Kai Xia ◽  
Yan Deng ◽  
...  
Keyword(s):  
Fluorescence Properties ◽  
Upconversion Nanoparticles

Nanostructured surface coatings for titanium alloy implants

2019 ◽  
Vol 34 (11) ◽  
pp. 1892-1899 ◽  
Author(s):  
Guy Louarn ◽  
Laetitia Salou ◽  
Alain Hoornaert ◽  
Pierre Layrolle
Keyword(s):  
Titanium Alloy ◽  
Surface Coatings ◽  
Nanostructured Surface ◽  
Image Position

Abstract

Simple Identification of Electron Diffraction Ring Patterns

1969 ◽  
Vol 27 ◽  
pp. 160-161
Author(s):  
Carolyn Nohr ◽  
Ann Ayres
Keyword(s):  
Electron Microscope ◽  
Electron Diffraction ◽  
Diffraction Ring ◽  
Image Position

Texts on electron diffraction recommend that the camera constant of the electron microscope be determine d by calibration with a standard crystalline specimen, using the equation

Atomic orientation effects in proton stopping at low velocity

1983 ◽  
Vol 41 ◽  
pp. 708-709
Author(s):  
Kin Lam
Keyword(s):  
Polycrystalline Material ◽  
Charged Particles ◽  
Target Material ◽  
Stopping Power ◽  
Low Velocity ◽  
Electronic Density ◽  
Interatomic Distances ◽  
Frame Work ◽  
Image Position ◽  
Atomic Orientation

The energy of moving ions in solid is dependent on the electronic density as well as the atomic structural properties of the target material. These factors contribute to the observable effects in polycrystalline material using the scanning ion microscope. Here we outline a method to investigate the dependence of low velocity proton stopping on interatomic distances and orientations.The interaction of charged particles with atoms in the frame work of the Fermi gas model was proposed by Lindhard. For a system of atoms, the electronic Lindhard stopping power can be generalized to the formwhere the stopping power function is defined as

A Magnetic Spectrometer for a Scanning Transmission Electron Microscope

1974 ◽  
Vol 32 ◽  
pp. 436-437
Author(s):  
A. Kosiara ◽  
J. W. Wiggins ◽  
M. Beer
Keyword(s):  
Scanning Transmission Electron Microscope ◽  
Magnetic Spectrometer ◽  
Fringe Field ◽  
Curvature Radius ◽  
Magnetic Pole ◽  
Quadrupole Field ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Under Construction ◽  
Image Position

A magnetic spectrometer to be attached to the Johns Hopkins S. T. E. M. is under construction. Its main purpose will be to investigate electron interactions with biological molecules in the energy range of 40 KeV to 100 KeV. The spectrometer is of the type described by Kerwin and by Crewe Its magnetic pole boundary is given by the equationwhere R is the electron curvature radius. In our case, R = 15 cm. The electron beam will be deflected by an angle of 90°. The distance between the electron source and the pole boundary will be 30 cm. A linear fringe field will be generated by a quadrupole field arrangement. This is accomplished by a grounded mirror plate and a 45° taper of the magnetic pole.

Optimizing conditions for x-ray microchemical analysis in analytical electron microscopy

1978 ◽  
Vol 36 (1) ◽  
pp. 548-549 ◽  
Author(s):  
N. J. Zaluzec
Keyword(s):  
Solid Angle ◽  
Analytical Electron Microscopy ◽  
Incident Beam ◽  
Thin Foil ◽  
Experimental Conditions ◽  
X Ray ◽  
Microchemical Analysis ◽  
Analytical Electron ◽  
Image Position ◽  
Incident Beam Energy

The ultimate sensitivity of microchemical analysis using x-ray emission rests in selecting those experimental conditions which will maximize the measured peak-to-background (P/B) ratio. This paper presents the results of calculations aimed at determining the influence of incident beam energy, detector/specimen geometry and specimen composition on the P/B ratio for ideally thin samples (i.e., the effects of scattering and absorption are considered negligible). As such it is assumed that the complications resulting from system peaks, bremsstrahlung fluorescence, electron tails and specimen contamination have been eliminated and that one needs only to consider the physics of the generation/emission process.The number of characteristic x-ray photons (Ip) emitted from a thin foil of thickness dt into the solid angle dΩ is given by the well-known equation

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