A waterborne polyurethane-based polymeric dye with covalently linked disperse red 11

2018 ◽  
Vol 132 ◽  
pp. 1-8 ◽  
Author(s):  
Xian-hai Hu ◽  
Xiang Liu ◽  
Man-li Liu ◽  
Gen Li
2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Xianhai Hu ◽  
Xingyuan Zhang ◽  
Jin Liu

A waterborne polyurethane-based polymeric dye (WPU-CFBB) was synthesized by anchoring 1, 4-bis(methylamino)anthraquinone (CFBB) to waterborne polyurethane chains. The number molecular weight, glass transition temperature, and average emulsion particle size for the polymeric dye were determined, respectively. This polymeric dye exhibited intriguing optical behaviors. The polymeric dye engendered two new absorption bands centered at about 520 nm and 760 nm if compared with CFBB in UV-vis spectra. The 760 nm peak showed hypsochromic shift with the decrease of average particle sizes. The polymeric dye dramatically demonstrated both hypsochromic and bathochromic effects with increasing temperature. The fluorescence intensity of the polymeric dye was much higher than that of CFBB. It was found that the fluorescence intensities would be enhanced from 20°C to 40°C and then decline from 40°C to 90°C. The fluorescence of the polymeric dye emulsion was very stable and was not sensitive to quenchers.


2016 ◽  
Vol 74 (2) ◽  
pp. 555-569 ◽  
Author(s):  
Xianhai Hu ◽  
Yunsheng Ding ◽  
Jin Liu ◽  
Yao Deng ◽  
Congliang Cheng

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47788-47797 ◽  
Author(s):  
Suli Chen ◽  
Wenling Wu ◽  
Guanghui Zhao ◽  
Tao Jin ◽  
Tianqi Zhao

A superparamagnetic and well-dispersed nanocomposite has been successfully synthesized via an in situ polymerization method using hollow Ni0.3Zn0.5Fe2O4 nanoparticles (h-NZFO) as a filler and waterborne polyurethane (WPU) as a matrix.


Materials ◽  
2017 ◽  
Vol 10 (11) ◽  
pp. 1247 ◽  
Author(s):  
Tao Wang ◽  
Wei Sun ◽  
Xingyuan Zhang ◽  
Haiyan Xu ◽  
Fei Xu

2013 ◽  
Vol 142 ◽  
pp. 23-27 ◽  
Author(s):  
Hu Xianhai ◽  
Xingyuan Zhang ◽  
Jin Liu ◽  
Jiabing Dai

Author(s):  
Richard D. Powell ◽  
James F. Hainfeld ◽  
Carol M. R. Halsey ◽  
David L. Spector ◽  
Shelley Kaurin ◽  
...  

Two new types of covalently linked, site-specific immunoprobes have been prepared using metal cluster labels, and used to stain components of cells. Combined fluorescein and 1.4 nm “Nanogold” labels were prepared by using the fluorescein-conjugated tris (aryl) phosphine ligand and the amino-substituted ligand in the synthesis of the Nanogold cluster. This cluster label was activated by reaction with a 60-fold excess of (sulfo-Succinimidyl-4-N-maleiniido-cyclohexane-l-carboxylate (sulfo-SMCC) at pH 7.5, separated from excess cross-linking reagent by gel filtration, and mixed in ten-fold excess with Goat Fab’ fragments against mouse IgG (obtained by reduction of F(ab’)2 fragments with 50 mM mercaptoethylamine hydrochloride). Labeled Fab’ fragments were isolated by gel filtration HPLC (Superose-12, Pharmacia). A combined Nanogold and Texas Red label was also prepared, using a Nanogold cluster derivatized with both and its protected analog: the cluster was reacted with an eight-fold excess of Texas Red sulfonyl chloride at pH 9.0, separated from excess Texas Red by gel filtration, then deprotected with HC1 in methanol to yield the amino-substituted label.


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