Effect of a Tertiary Butyl Group on Polar Solvation Dynamics in Aqueous Solution: Femtosecond Fluorescence Spectroscopy

2017 ◽  
Vol 121 (41) ◽  
pp. 9631-9638 ◽  
Author(s):  
Mario Gerecke ◽  
Celin Richter ◽  
Martin Quick ◽  
Ilya N. Ioffe ◽  
Rainer Mahrwald ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Spectroscopy ◽  
Solvation Dynamics ◽  
Tertiary Butyl ◽  
Butyl Group ◽  
Polar Solvation

Three-Pulse Echo Peak Shift Studies of Polar Solvation Dynamics

1997 ◽  
Vol 101 (4) ◽  
pp. 725-731 ◽  
Author(s):  
Sean A. Passino ◽  
Yutaka Nagasawa ◽  
Taiha Joo ◽  
Graham R. Fleming
Keyword(s):  
Peak Shift ◽  
Solvation Dynamics ◽  
Pulse Echo ◽  
Polar Solvation

scholarly journals Isosteric and fluorescent DNA base pair formed by 4-amino-phthalimide and 2,4-diaminopyrimidine: melting, structure, and THz polar solvation dynamics

2016 ◽  
Vol 18 (9) ◽  
pp. 6813-6820 ◽  
Author(s):  
L. Dehmel ◽  
F. Berndt ◽  
M. Weinberger ◽  
M. Sajadi ◽  
I. Ioffe ◽  
...  
Keyword(s):  
Base Pair ◽  
Solvation Dynamics ◽  
Duplex Dna ◽  
Dna Base ◽  
Dna Base Pair ◽  
Polar Solvation

An artificial base pair in duplex DNA, formed by 2,4-diaminopyrimidine and fluorescent 4-aminophthalimide C-nucleosides, is characterized spectroscopically, for use in femtosecond solvation dynamics.

The influence of the tertiary butyl group in the ligand frame on the catalytic activities, DNA cleavage ability and cytotoxicity of dinuclear nickel(II) complexes

2019 ◽  
Vol 495 ◽  
pp. 118993 ◽  
Author(s):  
Kapil Kumar ◽  
Ashish Kumar Dhara ◽  
Virendra Kumar Chaudhary ◽  
Nathani Sandip ◽  
Partha Roy ◽  
...  
Keyword(s):  
Dna Cleavage ◽  
Tertiary Butyl ◽  
Catalytic Activities ◽  
Butyl Group

Fluorescence spectroscopy on protactinium(IV) in aqueous solution

2004 ◽  
Vol 92 (7) ◽  
Author(s):  
Christian M. Marquardt ◽  
P. J. Panak ◽  
C. Apostolidis ◽  
A. Morgenstern ◽  
C. Walther ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Spectroscopy ◽  
Emission Band ◽  
Ph Value ◽  
Fluorescence Emission ◽  
Laser Fluorescence ◽  
Hypsochromic Shift ◽  
Time Resolved ◽  
Band Position ◽  
Laser Fluorescence Spectroscopy

SummaryThis work focuses on time-resolved laser fluorescence spectroscopy (TRLFS) of Pa(IV) in aqueous solution. Excitation at 308 nm causes a fluorescence emission with a peak maximum at about 460 nm. Thereby, the position of the band´s maximum depends on the concentration, the type of the acid, and the pH value. Increasing complexation of the Pa(IV) ion leads to an increasing hypsochromic shift of the emission band up to 46 nm. In contrast to the band position the half-width (61.6±1.4 nm) and the lifetime (16±2 ns) of the fluorescence emission do not change significantly with changes in the chemical environment of the Pa(IV). The results of this work show that speciation of Pa(IV) can be performed even in aqueous solution by using TRLFS.

scholarly journals Formation of nanoparticles by cooperative inclusion between (S)-camptothecin-modified dextrans and β-cyclodextrin polymers

2015 ◽  
Vol 11 ◽  
pp. 147-154 ◽  
Author(s):  
Thorbjørn Terndrup Nielsen ◽  
Catherine Amiel ◽  
Laurent Duroux ◽  
Kim Lambertsen Larsen ◽  
Lars Wagner Städe ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Spectroscopy ◽  
Isothermal Titration Calorimetry ◽  
Degree Of Substitution ◽  
Titration Calorimetry ◽  
Binding Properties ◽  
High Binding ◽  
Cyclodextrin Polymers

Novel (S)-camptothecin–dextran polymers were obtained by “click” grafting of azide-modified (S)-camptothecin and alkyne-modified dextrans. Two series based on 10 kDa and 70 kDa dextrans were prepared with a degree of substitution of (S)-camptothecin between 3.1 and 10.2%. The binding properties with β-cyclodextrin and β-cyclodextrin polymers were measured by isothermal titration calorimetry and fluorescence spectroscopy, showing no binding with β-cyclodextrin but high binding with β-cyclodextrin polymers. In aqueous solution nanoparticles were formed from association between the (S)-camptothecin–dextran polymers and the β-cyclodextrin polymers.

Sign in / Sign up

Export Citation Format

Share Document