scholarly journals Quantitative characterization of the concentration‐dependent interaction between molecules of Dextran 70 in aqueous solution: Measurement and analysis in the context of thermodynamic and compressible sphere models

Biopolymers ◽  
2019 ◽  
Vol 110 (10) ◽  
Author(s):  
Cristina Fernández ◽  
Adedayo A. Fodeke ◽  
Allen P. Minton
Keyword(s):  
Aqueous Solution ◽  
Quantitative Characterization ◽  
Dextran 70 ◽  
Measurement And Analysis ◽  
Dependent Interaction

scholarly journals Direct Observation and Quantitative Characterization of Singlet Oxygen in Aqueous Solution upon UVA Excitation of 6-Thioguanines

2011 ◽  
Vol 115 (8) ◽  
pp. 1889-1894 ◽  
Author(s):  
Yazhou Zhang ◽  
Xianchun Zhu ◽  
Joshua Smith ◽  
Makeisha T. Haygood ◽  
Ruomei Gao
Keyword(s):  
Aqueous Solution ◽  
Singlet Oxygen ◽  
Direct Observation ◽  
Quantitative Characterization

Tracer sedimentation equilibrium: a powerful tool for the quantitative characterization of macromolecular self- and hetero-associations in solution

2003 ◽  
Vol 31 (5) ◽  
pp. 1015-1019 ◽  
Author(s):  
G. Rivas ◽  
A.P. Minton
Keyword(s):  
Concentration Gradient ◽  
Sedimentation Equilibrium ◽  
Concentrated Solutions ◽  
Solution Composition ◽  
Quantitative Characterization ◽  
Measurement And Analysis ◽  
Solute Interactions ◽  
New Applications ◽  
Solute Component

During the last two decades the measurement and analysis of sedimentation equilibrium has been used increasingly as a method for characterizing intermolecular interactions in solution. More recently, a variant of this technique has been developed, in which a trace amount of a single solute component is labelled so that the concentration gradient of that component at sedimentation equilibrium may be measured independently of the gradients of all other components. The dependence of equilibrium tracer gradients upon solution composition may be readily interpreted in the context of models for self- and hetero-association of the labelled component, and, in the case of concentrated solutions, repulsive as well as attractive solute–solute interactions. We present a summary of experimental and analytic methods, a brief review of some previously published applications, and a preview of new applications demonstrating capabilities beyond those afforded by other current techniques for characterizing macromolecular associations in solution.

scholarly journals Measuring and quantifying skin sympathetic nervous system activity in humans

2017 ◽  
Vol 118 (4) ◽  
pp. 2181-2193 ◽  
Author(s):  
Jody L. Greaney ◽  
W. Larry Kenney
Keyword(s):  
Nervous System ◽  
Sympathetic Nervous System ◽  
Signal Analysis ◽  
Autonomic Nerves ◽  
Quantitative Characterization ◽  
Qualitative And Quantitative ◽  
Nervous System Activity ◽  
Measurement And Analysis ◽  
Sympathetic Nervous

Development of the technique of microneurography has substantially increased our understanding of the function of the sympathetic nervous system (SNS) in health and in disease. The ability to directly record signals from peripheral autonomic nerves in conscious humans allows for qualitative and quantitative characterization of SNS responses to specific stimuli and over time. Furthermore, distinct neural outflow to muscle (MSNA) and skin (SSNA) can be delineated. However, there are limitations and caveats to the use of microneurography, measurement criteria, and signal analysis and interpretation. MSNA recordings have a longer history and are considered relatively more straightforward from a measurement and analysis perspective. This brief review provides an overview of the development of the technique as used to measure SSNA. The focus is on the utility of measuring sympathetic activity directed to the skin, the unique issues related to analyzing and quantifying multiunit SSNA, and the challenges related to its interpretation.

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