Molecular Recognition in Organic Solvents. The Importance of Excimer Fluorescence Spectroscopy

1995 ◽  
Vol 99 (21) ◽  
pp. 8896-8902 ◽  
Author(s):  
G. Pistolis ◽  
C. M. Paleos ◽  
Angelos Malliaris
Keyword(s):  
Molecular Recognition ◽  
Fluorescence Spectroscopy ◽  
Organic Solvents ◽  
Excimer Fluorescence

How switching the substituent of a pyrene derivative from a methyl to a butyl affects the fluorescence response of polystyrene randomly labeled with pyrene

2010 ◽  
Vol 88 (3) ◽  
pp. 217-227 ◽  
Author(s):  
Mark Ingratta ◽  
Manoj Mathew ◽  
Jean Duhamel
Keyword(s):  
Organic Solvents ◽  
Excellent Agreement ◽  
Fluorescence Spectra ◽  
Series Solutions ◽  
Specific Nature ◽  
Polymer Backbone ◽  
Excimer Fluorescence ◽  
Fluorescence Response ◽  
Different Types ◽  
Blob Model

A series of polystyrenes randomly labeled with 1-pyrenebutanol were prepared by copolymerizing styrene and 1-pyrenebutylacrylate yielding the CoBuE–PS series. Solutions of CoBuE–PS were prepared in nine organic solvents having viscosities ranging from 0.36 to 5.5 mPa·s and the fluorescence spectra and pyrene monomer and excimer fluorescence decays were acquired. Analysis of the fluorescence spectra yielded the IE/IM ratio, whereas analysis of the fluorescence decays with the fluorescence blob model (FBM) yielded the parameters N blobo , <kblob × Nblob> , and k blobo . These parameters were compared to those obtained with two other series of pyrene-labeled polystyrenes, which had been studied earlier, namely CoA–PS and CoE–PS where pyrene was attached to the polymer backbone via a methylamide and benzyl methylether linker, respectively. Although the parameters IE/IM, N blobo , <kblob × Nblob>, and k blobo took different values according to the specific nature of the linker connecting pyrene to the polystyrene backbone, they exhibited trends that were quite similar for all the pyrene-labeled polystyrene constructs. The excellent agreement between the parameters retrieved for the three different types of pyrene-labeled polystyrenes suggests that the FBM accounts satisfyingly for differences in the nature of the label used, while still retrieving information pertinent to the polymer of interest.

Molecular recognition of organic solvents and ammonia: shapes and donor properties as sensor effects

1992 ◽  
Vol 6 (1-3) ◽  
pp. 25-28 ◽  
Author(s):  
F.L. Dickert ◽  
A. Haunschild ◽  
P. Hofmann ◽  
G. Mages
Keyword(s):  
Molecular Recognition ◽  
Organic Solvents

A simple and benign protocol for the synthesis of deep eutectic solvents-based hydrophilic molecularly imprinted resin in water for excellent selective molecular recognition in aqueous phase

2021 ◽  
Author(s):  
Mingwei Wang ◽  
Fengxia Qiao ◽  
Hongyuan Yan
Keyword(s):  
Molecular Recognition ◽  
Organic Solvents ◽  
Aqueous Phase ◽  
Molecularly Imprinted Polymers ◽  
Deep Eutectic Solvents ◽  
Green Process ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Aqueous Environments

Molecularly imprinted polymers (MIPs) are conventionally synthesized in organic solvents, resulting in poor compatibility with water and weak molecular recognition of targets in aqueous environments; hence, developing a green process...

Time-resolved excimer fluorescence spectroscopy in lipid membranes

1996 ◽  
Author(s):  
Kwan H. Cheng ◽  
Lucy Ruymgaart ◽  
Digala M. Kulawansa ◽  
Pentti Somerharju
Keyword(s):  
Fluorescence Spectroscopy ◽  
Lipid Membranes ◽  
Time Resolved ◽  
Excimer Fluorescence

scholarly journals Host–guest interactions in nor-seco-cucurbit[10]uril: novel guest-dependent molecular recognition and stereoisomerism

2019 ◽  
Author(s):  
Xiaodong Zhang ◽  
Wei Wu ◽  
Zhu Tao ◽  
Xin-Long Ni
Keyword(s):  
Aqueous Solution ◽  
Molecular Recognition ◽  
Binding Ability ◽  
Excimer Fluorescence ◽  
Hydrophobic Effects

The unique monomer and excimer fluorescence emissions of pyrene were first exploited as distinctly photophysical signals to identify the possible diastereomers of guests within nor-seco-cucurbit[10]uril (NS-CB[10]) cavities. Further experiments revealed that balancing the hydrophilic and hydrophobic effects of the guest in aqueous solution can improve the molecular recognition and binding ability of NS-CB[10].

scholarly journals Detection of Metal Ions and Protons with a New Blue Fluorescent Bis(1,8-Naphthalimide)

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Stanislava Yordanova ◽  
Stanimir Stoianov ◽  
Ivo Grabchev ◽  
Ivan Petkov
Keyword(s):  
Fluorescence Spectroscopy ◽  
Metal Ions ◽  
Organic Solvents ◽  
Metal Cations

The synthesis of a new blue fluorescent bis(1,8-naphthalimide) has been described and its basic photophysical characteristics have been investigated in organic solvents of different polarity. The detection of protons and different metal cations (Ag+, Cu2+, Co2+, Ni2+, Fe3+ and Zn2+) with the new compound has been investigated by the use fluorescence spectroscopy.

Sign in / Sign up

Export Citation Format

Share Document