Studies of micro-brownian motion of a polymer chain by the fluorescence polarization method. II. Segmental motions in concentrated polymer solutions

1967 ◽  
Vol 5 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Akio Teramoto ◽  
Shozaburo Hiratsuka ◽  
Yasunori Nishijima
Keyword(s):  
Brownian Motion ◽  
Polymer Chain ◽  
Fluorescence Polarization ◽  
Polymer Solutions ◽  
Polarization Method ◽  
Segmental Motions

Optimization of a Fluorescence Polarization Immunoassay for Rapid Quantification of Deoxynivalenol in Durum Wheat–Based Products

2006 ◽  
Vol 69 (11) ◽  
pp. 2712-2719 ◽  
Author(s):  
VINCENZO LIPPOLIS ◽  
MICHELANGELO PASCALE ◽  
ANGELO VISCONTI
Keyword(s):  
High Pressure ◽  
Liquid Chromatography ◽  
Durum Wheat ◽  
High Pressure Liquid Chromatography ◽  
Fluorescence Polarization ◽  
Fluorescence Polarization Immunoassay ◽  
Polarization Method ◽  
Chromatography Method ◽  
Liquid Chromatography Method ◽  
Rapid Quantification

A fluorescence polarization immunoassay previously described for deoxynivalenol (DON) screening in wheat was optimized for the rapid quantification of DON in durum wheat kernels, semolina, and pasta. A background signal was observed in both spiked and naturally contaminated samples, strictly depending on the testing matrix. After subtracting the background DON level for durum wheat (0.27 μg of DON per g), semolina (0.08 μg of DON per g), and pasta (0.04 μg of DON per g), an accurate quantification of DON was possible at levels greater than 0.10 μg/g for all matrices. Average recoveries from spiked samples (0.25 to 1.75 μg/g) were 98, 102, and 101% for wheat, semolina, and pasta, respectively. Comparative analyses of 35 naturally contaminated durum wheat samples, 22 semolina samples, and 26 pasta samples performed by both the fluorescence polarization method and high-pressure liquid chromatography/immunoaffinity cleanup showed a good correlation (r > 0.995). The fluorescence polarization method showed better accuracy and precision with respect to the high-pressure liquid chromatography method and is suitable for the rapid and quantitative determination of DON in durum wheat–based products at levels foreseen by existing or coming international regulations.

Brownian-motion analysis of microspheres in polymer solutions

2000 ◽  
Vol 40 (supplement) ◽  
pp. S148
Author(s):  
Y. Magariyama ◽  
S. Kudo
Keyword(s):  
Brownian Motion ◽  
Motion Analysis ◽  
Polymer Solutions

scholarly journals Studies of the Agarose Gelling System by the Fluorescence Polarization Method. II.

1978 ◽  
Vol 10 (5) ◽  
pp. 485-494 ◽  
Author(s):  
Akira Hayashi ◽  
Kyosuke Kinoshita ◽  
Masaru Kuwano ◽  
Atsumi Nose
Keyword(s):  
Fluorescence Polarization ◽  
Polarization Method

scholarly journals Diffusive properties of solvent molecules in the neighborhood of a polymer chain as seen by Monte-Carlo simulations

Soft Matter ◽  
2016 ◽  
Vol 12 (25) ◽  
pp. 5519-5528 ◽  
Author(s):  
M. Kozanecki ◽  
K. Halagan ◽  
J. Saramak ◽  
K. Matyjaszewski
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Chain Length ◽  
Polymer Chain ◽  
Polymer Solutions ◽  
Solvent Molecules

The influence of both polymer chain length and concentration on the mobility of solvent molecules in polymer solutions was studied by Monte Carlo simulations with the use of the dynamic lattice liquid (DLL) model.

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