Hybrid nanoparticle based fluorescence switch for recognition of ketoprofen in aqueous media

2020 ◽  
Vol 5 (8) ◽  
pp. 1428-1436
Author(s):  
Anu Saini ◽  
Manpreet Kaur ◽  
Mayank ◽  
Anil Kuwar ◽  
Navneet Kaur ◽  
...  

Hybrid nanoassembly, fluorescent chemosensors, selective response to ketoprofen, and nanomolar detection.

RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22691-22700
Author(s):  
Jayanti Mishra ◽  
Manpreet Kaur ◽  
Navneet Kaur ◽  
Ashok K. Ganguli

Two ligands 1 and 2 are synthesized and their organic nanoparticles (1-ONP and 2-ONP) are generated. 1-ONP has shown the chemosensing of Cs(i) (∼220 nm) and Al(iii) (∼377 nm) in aqueous medium while 2-ONP has not shown any chemosensing behaviour.


RSC Advances ◽  
2014 ◽  
Vol 4 (82) ◽  
pp. 43470-43476 ◽  
Author(s):  
Shahi Imam Reja ◽  
Vandana Bhalla ◽  
Shaffi Manchanda ◽  
Gurcharan Kaur ◽  
Manoj Kumar

A new rhodamine–azaindole based fluorescence probe for Cu2+ has been synthesized which shows fluorescence resonance energy transfer process in acetonitrile. Further, the probe undergoes Cu2+ promoted hydrolysis in mixed aqueous media as well as in the intracellular systems.


Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 821 ◽  
Author(s):  
Ting Han ◽  
Yun Zhang ◽  
Benzhao He ◽  
Jacky Lam ◽  
Ben Tang

The development of polymeric materials with novel structures and unique properties and functionalities is of both academic and industrial significance. In this work, functional poly(dihalopentadiene)s were synthesized by boron trihalide-mediated multicomponent polymerization routes in a stereoselective manner. The polymerizations of tetraphenylethylene-containing diyne, BX3 (X = Cl, Br) and p-tolualdehyde proceed smoothly in dichloromethane under mild conditions to afford high molecular weight poly(dihalopentadiene)s with a predominant (Z,Z)-configuration in moderate to good yields. The reaction conditions and the boron trihalide used were found to have great effects on the stereochemistry of the resulting polymer structures. The obtained poly(1,5-dihalo-(Z,Z)-1,4-pentadiene)s possess high thermal stability and good film-forming ability. Their thin films show high refractive index of 1.9007–1.6462 in a wide wavelength region of 380–890 nm with low optical dispersion. The polymers are weakly emissive in dilute solutions but become highly emissive upon aggregated, demonstrating a unique phenomenon of aggregation-enhanced emission. Their nanoaggregates in aqueous media can serve as sensitive fluorescent chemosensors for the detection of explosives with a superamplification effect and a low detection limit.


2020 ◽  
Vol 13 (12) ◽  
pp. 8697-8707
Author(s):  
Jung-Seop Lee ◽  
Shrikant Dashrath Warkad ◽  
Pramod B. Shinde ◽  
Anil Kuwar ◽  
Satish Balasaheb Nimse

Chemosensors ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Begoña Verdejo ◽  
Mario Inclán ◽  
María Paz Clares ◽  
Irene Bonastre-Sabater ◽  
Mireia Ruiz-Gasent ◽  
...  

Polyamine ligands are water-soluble receptors that are able to coordinate, depending on their protonation degree, either metal ions, anionic, or neutral species. Furthermore, the presence of fluorescent signaling units allows an immediate visual response/signal. For these reasons, they can find applications in a wide variety of fields, mainly those where aqueous media is necessary, such as biological studies, wastewater analysis, soil contamination, etc. This review provides an overview of the recent developments in the research of chemosensors based on polyamine ligands functionalized with fluorescent signaling units. The discussion focuses on the design, synthesis, and physicochemical properties of this type of fluorescent chemosensors in order to analyze the applications associated to the sensing of metal ions, anions, and neutral molecules of environmental and/or biological interest. To facilitate a quick access and overview of all the chemosensors covered in this review, a summary table of the chemosensor structures and analytes, with all the corresponding references, is also presented.


2014 ◽  
Vol 86 (13) ◽  
pp. 6315-6322 ◽  
Author(s):  
Shyamaprosad Goswami ◽  
Avijit Kumar Das ◽  
Abhishek Manna ◽  
Anup Kumar Maity ◽  
Partha Saha ◽  
...  

2013 ◽  
Vol 143 ◽  
pp. 583-586 ◽  
Author(s):  
Peng-fei Cheng ◽  
Kuo-xi Xu ◽  
Wenyong Yao ◽  
En Xie ◽  
Jie Liu

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