Fast Relaxation Dynamics of the Cardiotonic Drug Milrinone in Water Solutions

2006 ◽  
Vol 49 (11) ◽  
pp. 3086-3091 ◽  
Author(s):  
Maged El-Kemary ◽  
Juan Angel Organero ◽  
Abderrazzak Douhal
Keyword(s):  
Relaxation Dynamics ◽  
Water Solutions ◽  
Fast Relaxation ◽  
Cardiotonic Drug

Bright two-photon emission and ultra-fast relaxation dynamics in a DNA-templated nanocluster investigated by ultra-fast spectroscopy

Nanoscale ◽  
2012 ◽  
Vol 4 (14) ◽  
pp. 4247 ◽  
Author(s):  
Sung Hei Yau ◽  
Neranga Abeyasinghe ◽  
Meghan Orr ◽  
Leslie Upton ◽  
Oleg Varnavski ◽  
...  
Keyword(s):  
Photon Emission ◽  
Relaxation Dynamics ◽  
Two Photon ◽  
Fast Relaxation

Anomalies of the Fast Relaxation Dynamics at Tg In Strong Glass Formers

1996 ◽  
Vol 455 ◽  
Author(s):  
A. Brodin ◽  
L. M. Torell
Keyword(s):  
Mode Coupling ◽  
Integral Intensity ◽  
Relaxation Dynamics ◽  
Quasielastic Scattering ◽  
Temperature Dependent ◽  
Heat Temperature ◽  
System A ◽  
Fast Relaxation ◽  
Temperature Dependences ◽  
Limiting Value

ABSTRACTStructural dynamics of two network forming glasses, B2O3 and GeO2, has been investigated by Raman scattering over a wide temperature range from ∼10 K to above the respective glass transition temperatures (Tg = 526 K for B2O3 and 800 K for GeO2). The spectra are analyzed in terms of two distinct contributions, related to vibrational and fast relaxational dynamics, respectively, and conventionally referred to as the boson peak (BP) and quasielastic scattering (QS). A quantity proportional to the fast relaxation strength may be deduced from the integral intensity of QS relative to BP of the spectra. It turns out, that for T < Tg the so-obtained QS intensity of the two glasses is similar and smoothly temperature dependent, and can qualitatively be described by e.g. the defect model or the soft potential model. As Tg is passed, there is a pronounced change in behavior and dramatic differences between the two systems are observed. Thus, the fast relaxational dynamics is obviously affected by Tg, a finding which is in contrast to the predictions of the mode coupling theory (MCT) of a single crossover temperature Tc > Tg. Moreover, the experimentally obtained value of the MCT exponent a, describing the shape of the fast dynamics, is by far exceeding the limiting value (a ≈ 0.395) of the theory, the deviation increasing with the strength of the system (a ≈ 0.7 for B2O3 and ≈ 0.9 for GeO2). The observed difference between the two glasses is discussed in terms of the fragility of the system manifested in jumps in the specific heat temperature dependences.

scholarly journals Imaging fast relaxation dynamics of NO2

2009 ◽  
Vol 80 (4) ◽  
pp. 048106 ◽  
Author(s):  
Raluca Cireasa ◽  
Jean-Benoît Hamard ◽  
Cécile Maury ◽  
Valérie Blanchet
Keyword(s):  
Relaxation Dynamics ◽  
Fast Relaxation

scholarly journals Glass transition and relaxation dynamics of propylene glycol–water solutions confined in clay

2014 ◽  
Vol 141 (3) ◽  
pp. 034505 ◽  
Author(s):  
Khalid Elamin ◽  
Jimmy Björklund ◽  
Fredrik Nyhlén ◽  
Madeleine Yttergren ◽  
Lena Mårtensson ◽  
...  
Keyword(s):  
Glass Transition ◽  
Propylene Glycol ◽  
Relaxation Dynamics ◽  
Water Solutions

Relaxation dynamics in confined glasses

2000 ◽  
Vol 10 (PR7) ◽  
pp. Pr7-227-Pr7-232 ◽  
Author(s):  
B. Jérôme ◽  
E. Cecchetto ◽  
N. R. de Souza ◽  
A. L. Demirel
Keyword(s):  
Relaxation Dynamics

DETERMINATION OF LANTHANIDES AND 3D METALS IN ENDOMETALLOFULLERENES WATER SOLUTIONS BY X-RAY FLUORESCENCE SPECTROMETRY

2019 ◽  
Vol 4 (65) ◽  
Author(s):  
V.G Zinovyev. ◽  
V.T. Lebedev ◽  
I.A. Mitropolsky ◽  
G.I. Shulyak ◽  
P.A. Sushkov ◽  
...  
Keyword(s):  
Fluorescence Spectrometry ◽  
X Ray ◽  
Water Solutions ◽  
3D Metals
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