scholarly journals Fluorescence modulation by fast photochromism of a [2.2]paracyclophane-bridged imidazole dimer possessing a perylene bisimide moiety

2018 ◽  
Vol 6 (35) ◽  
pp. 9523-9531 ◽  
Author(s):  
Katsuya Mutoh ◽  
Michel Sliwa ◽  
Eduard Fron ◽  
Johan Hofkens ◽  
Jiro Abe
Keyword(s):  
Perylene Bisimide ◽  
Red Color ◽  
Fluorescence Switching ◽  
Fluorescence Modulation

We demonstrated the red-color fluorescence switching of a perylene bisimide (PBI) derivative by using a fast photochromic [2.2]paracyclophane-bridged imidazole dimer.

scholarly journals Correction: Reversible fluorescence modulation through the photoisomerization of an azobenzene-bridged perylene bisimide cyclophane

2021 ◽  
Author(s):  
Guanghui Ouyang ◽  
David Bialas ◽  
Frank Würthner
Keyword(s):  
Perylene Bisimide ◽  
Fluorescence Modulation

Correction for ‘Reversible fluorescence modulation through the photoisomerization of an azobenzene-bridged perylene bisimide cyclophane’ by Guanghui Ouyang et al., Org. Chem. Front., 2021, DOI: 10.1039/D0QO01635G.

Isothermally Reversible Fluorescence Switching of a Mechanochromic Perylene Bisimide Dye

2012 ◽  
Vol 24 (25) ◽  
pp. 3350-3355 ◽  
Author(s):  
Norihiro Mizoshita ◽  
Takao Tani ◽  
Shinji Inagaki
Keyword(s):  
Perylene Bisimide ◽  
Fluorescence Switching

Redox-controlled fluorescence modulation (electrofluorochromism) in triphenylamine derivatives

RSC Advances ◽  
2014 ◽  
Vol 4 (65) ◽  
pp. 34332-34342 ◽  
Author(s):  
Cassandre Quinton ◽  
Valérie Alain-Rizzo ◽  
Cécile Dumas-Verdes ◽  
Fabien Miomandre ◽  
Gilles Clavier ◽  
...  
Keyword(s):  
Fluorescence Switching ◽  
Fluorescence Modulation

The study of the chemical and electrochemical fluorescence switching properties of a family of substituted triphenylamine derivatives is reported.

Reversible fluorescence modulation through the photoisomerization of an azobenzene-bridged perylene bisimide cyclophane

2021 ◽  
Author(s):  
Guanghui Ouyang ◽  
David Bialas ◽  
Frank Würthner
Keyword(s):  
Fluorescence Intensity ◽  
Light Irradiation ◽  
Perylene Bisimide ◽  
Fluorescence Modulation

An azobenzene-bridged perylene bisimide cyclophane was designed and synthesized, which showed reversible fluorescence intensity switching under light-irradiation due to cooperative adjustments of PBI–PBI and PBI–Azo interactions.

Effect of coating method on release of Glimepiride from porosity osmotic pump tablets (POPTs)

2020 ◽  
pp. 37-45
Keyword(s):  
In Vitro Release ◽  
Osmotic Pump ◽  
Release Time ◽  
Once Daily ◽  
Coating Solution ◽  
Continuous Release ◽  
Red Color ◽  
Coating Method ◽  
Osmotic Agent

In this study, once-daily porosity osmotic pump tablets (POPTs) of Glimepiride were prepared using HPMC K100M (61%), osmotic agent (30% NaCl) coated using two different coating techniques spraying and dipping methods. The coating solution composed of ethyl cellulose (7.5%) w\w in ethanol (90%), castor oil (2%) as water-insoluble plasticizer and Gingo red color (0.5% w\w). In both techniques, the coating level was adjusted to give a 10% increase in the weight of the tablets. The effect of the coating by dipping technique with an increase in the weight of tablet (10 %, 20% & 50%) was also investigated to see the effect coating level on the percentage of drug release from POPTs. The results of the in vitro release of Glimepiride from tablets coated by the spraying method showed longer release time (24 hrs) than those coated with dipping method. On the other hand, increasing the coating level by dipping method retarded the release of the drug from tablets. However, the same retardation effect on release as shown with the spraying technique was only obtained by increasing the coating level with a 50% increase in the weight of the tablet. Thus, coating by spraying is more efficient to prepare POPTs to give a continuous release of Glimepiride from once daily table with the lowest increase in the total weight of the tablet.

WIELAND-M15

Alloy Digest ◽  
2002 ◽  
Vol 51 (12) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Zinc Alloy ◽  
Bend Strength ◽  
Red Color ◽  
Copper Zinc

Abstract Wieland-M15 is copper-zinc alloy with good electrical conductivity and a red color useful in decorative applications. The alloy has also been called red brass, 85%, and CA 230. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: CU-694. Producer or source: Wieland Metals Inc., Wieland-Werke AG.

Hydrophobic Particle Films Improve Tree Fruit Productivity

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 548a-548 ◽  
Author(s):  
D.M. Glenn ◽  
G. Puterka ◽  
T. Baugher ◽  
T. Unruh ◽  
S. Drake
Keyword(s):  
West Virginia ◽  
Production Systems ◽  
Fruit Size ◽  
The United States ◽  
Fruit Production ◽  
Red Color ◽  
Tree Fruit ◽  
Fruit Productivity ◽  
Leaf Level ◽  
Hydrophobic Particle

Hydrophobic particle film technology (HPF) is a developing pest control system for tree fruit production systems. Studies were established in Chile, and Washington, Pennsylvania, and West Virginia in the United States, to evaluate the effect of HPF technology on tree fruit yield and quality. Studies in Chile, Washington, and West Virginia demonstrated increased photosynthetic rate at the leaf level. Yield was increased in peaches (Chile) and apples (West Virginia), and fruit size was increased in apples (Washington and Pennsylvania). Increased red color in apple was demonstrated at all sites with reduced russetting and `Stayman' cracking in Pennsylvania. HPF technology appears to be an effective tool in reducing water and heat stress in tree fruit resulting in increased fruit quality.

Enzymatic colorimetry of lecithin and sphingomyelin in aqueous solution.

1983 ◽  
Vol 29 (8) ◽  
pp. 1513-1517 ◽  
Author(s):  
M W McGowan ◽  
J D Artiss ◽  
B Zak
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Peroxide ◽  
Amniotic Fluid ◽  
Enzymatic Reaction ◽  
Detergent Solution ◽  
Enzymatic Determination ◽  
Red Color ◽  
Hydrolysis Of ◽  
Zwitterionic Detergent

Abstract A procedure for the enzymatic determination of lecithin and sphingomyelin in aqueous solution is described. The phospholipids are first dissolved in chloroform:methanol (2:1 by vol), the solvent is evaporated, and the residue is redissolved in an aqueous zwitterionic detergent solution. The enzymatic reaction sequences of both assays involve hydrolysis of the phospholipids to produce choline, which is then oxidized to betaine, thus generating hydrogen peroxide. The hydrogen peroxide is subsequently utilized in the enzymatic coupling of 4-aminoantipyrine and sodium 2-hydroxy-3,5-dichlorobenzenesulfonate, an intensely red color being formed. The presence of a non-reacting phospholipid enhances the hydrolysis of the reacting phospholipid. Thus we added lecithin to the sphingomyelin standards and sphingomyelin to the lecithin standards. This precise procedure may be applicable to determination of lecithin and sphingomyelin in amniotic fluid.

Design and synthesis of a novel quinoxaline diamine and its polyimides with high-Tg and red color

Polymer ◽  
2019 ◽  
Vol 179 ◽  
pp. 121612 ◽  
Author(s):  
Tuan-Qing Liu ◽  
Feng Zheng ◽  
Tong-Mei Ding ◽  
Shu-Yu Zhang ◽  
Qinghua Lu
Keyword(s):  
Design And Synthesis ◽  
Red Color
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