The isomeric effect of mercaptobenzoic acids on the preparation and fluorescence properties of copper nanoclusters

2015 ◽  
Vol 51 (60) ◽  
pp. 11983-11986 ◽  
Author(s):  
Yi-Jyun Lin ◽  
Po-Cheng Chen ◽  
Zhiqin Yuan ◽  
Jia-Ying Ma ◽  
Huan-Tsung Chang

Copper nanoclusters (Cu NCs) aggregates prepared from copper nitrate and mercaptobenzoic acid (MBA) isomers show differential optical properties.

Crystals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 664 ◽  
Author(s):  
Chang-Jie Liu ◽  
Tong-Tong Zhang ◽  
Wei-Dong Li ◽  
Yuan-Yuan Wang ◽  
Shui-Sheng Chen

Two Zn(II) coordination polymers (CPs) [Zn(L)(pphda)] (1) and [Zn(L)(ophda)]·H2O (2) were prepared by reactions of ZnSO4·7H2O based on the N-donor 1,4-di(1H-imidazol-4-yl)benzene (L) ligand and two flexible carboxylic acids isomers of 1,4-phenylenediacetic acid (H2pphda) and 1,2-phenylenediacetic acid (H2ophda) as mixed ligands, respectively. Structures of CPs 1 and 2 were characterized by elemental analysis, Infrared spectroscopy (IR), thermogravimetric analysis and single-crystal X-ray diffraction. The CP 1 is a fourfold interpenetrating 66-diamond (dia) architecture, while 2 is a 2D (4, 4) square lattice (sql) layer based on the Zn2(cis-1,2-ophda2−)2 binuclear Zn(II) subunits. The luminescent property, including luminescence lifetime and quantum yield (QY), have been investigated for CPs 1 and 2.


2014 ◽  
Vol 936 ◽  
pp. 618-623
Author(s):  
Lung Chien Chen ◽  
Xiu Yu Zhang ◽  
Kuan Lin Lee

Cu-doped ZnO (CZO) films have been widely discussed due to its potential applications in semiconductor devices, such as gas sensors or solar cells, but few articles were reported to show the effect on properties of CZO films by using different Cu sources. The article demonstrates that CZO films have been prepared by using different Cu source via a simple ultrasonic spray method, in which copper nitrate and copper acetate were used as copper sources. Optical properties of CZO films prepared by copper nitrate and copper acetate were investigated by transmittance and photoluminescence measurement. The X-ray diffraction analysis and field emission scanning electron microscopy were used to investigate the composition and the morphology of the films. The CZO films prepared by using copper acetate shows better optical properties by comprehensive analysis.


The Analyst ◽  
2020 ◽  
Vol 145 (15) ◽  
pp. 5325-5332
Author(s):  
Hanjun Zhang ◽  
Zhen Xu ◽  
Furong Tao ◽  
Yan Li ◽  
Yuezhi Cui ◽  
...  

CB-Ph and CB-Me have similar color and fluorescence properties, while they exhibit specific differences under the same stimulus. Based on the unique optical properties of CB-Ph and CB-Me, a new data encryption–decryption technology is developed.


2017 ◽  
Vol 2 (3) ◽  
pp. 135-146 ◽  
Author(s):  
Zhenguang Wang ◽  
Bingkun Chen ◽  
Andrey L. Rogach

Copper is an earth abundant, inexpensive metal readily available from commercial sources, which is increasingly coming into focus for light-emitting metal nanocluster research.


2021 ◽  
Author(s):  
Zahra Karimzadeh ◽  
Abolghasem Jouyban ◽  
Elaheh Rahimpour

Background: Sofosbuvir is a potent direct-acting antivirus agent that has been listed as a promising medicine for the treatment of all genotypes of hepatitis C virus. As antiviral drugs could be metabolized to their associated compounds and toxicologically and pharmacologically interfere with the parent drugs, identifying the therapeutic range of drugs would be notable. Methods: In the current study, copper nanoclusters (Cu NCs) are synthesized during the reduction of copper nitrate with hydrazine hydrate in a protected media and used as a nanoprobe for the determination of sofosbuvir in plasma samples. Herein, synchronous fluorescence spectroscopy (SFS) is used for monitoring of fluorescence variation of nanoprobe owing to the excessive benefits compared with the traditional fluorescence. Results: SFS peak of Cu NCs has appeared at 355 nm with ∆λ=80 nm which is decreased in the presence of sofosbuvir. To optimize the reaction factors, a response surface methodology is used and in the optimized conditions, a linear concentration-response plot is obtained in a range of 0.05-6.0 µg mL−1 with a limit of detection of 0.0147 µg mL−1. Conclusion: The developed method also reveals good repeatability and selectivity for sofosbuvir in plasma samples.


ACS Omega ◽  
2018 ◽  
Vol 3 (11) ◽  
pp. 15635-15642 ◽  
Author(s):  
Franck Bertorelle ◽  
Isabelle Russier-Antoine ◽  
Clothilde Comby-Zerbino ◽  
Fabien Chirot ◽  
Philippe Dugourd ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document