Ultrasonic investigation of the pH-dependent solute-solvent interactions in aqueous solutions of amino acids and proteins

1979 ◽  
Vol 83 (13) ◽  
pp. 1796-1799 ◽  
Author(s):  
A. P. Sarvazyan ◽  
D. P. Kharakoz ◽  
Paul. Hemmes
Keyword(s):  
Amino Acids ◽  
Aqueous Solutions ◽  
Solvent Interactions ◽  
Ph Dependent ◽  
Ultrasonic Investigation

scholarly journals The Surface Composition of Amino Acid - KCl Solutions is pH-Dependent

2020 ◽  
Author(s):  
Geethanjali Gopakumar ◽  
Isaak Unger ◽  
Clara-Magdalena Saak ◽  
Gunnar Öhrwall ◽  
Arnaldo Naves de Brito ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Aqueous Solutions ◽  
Photoelectron Spectroscopy ◽  
Surface Composition ◽  
Inorganic Ions ◽  
X Ray ◽  
Ph Dependent

The manuscript based on X-ray photoelectron spectroscopy on aqueous solutions containing KCl and different amino acids. Our analysis suggests that the presence of the inorganic ions at the surface of the liquid is strongly dependent on the pH of the solution and the type of amino acid.

scholarly journals The Surface Composition of Amino Acid - KCl Solutions is pH-Dependent

2020 ◽  
Author(s):  
Geethanjali Gopakumar ◽  
Isaak Unger ◽  
Clara-Magdalena Saak ◽  
Gunnar Öhrwall ◽  
Arnaldo Naves de Brito ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Aqueous Solutions ◽  
Photoelectron Spectroscopy ◽  
Surface Composition ◽  
Inorganic Ions ◽  
X Ray ◽  
Ph Dependent

The manuscript based on X-ray photoelectron spectroscopy on aqueous solutions containing KCl and different amino acids. Our analysis suggests that the presence of the inorganic ions at the surface of the liquid is strongly dependent on the pH of the solution and the type of amino acid.

Imaging polymers, proteins and dna in aqueous solutions with the atomic force microscope

1989 ◽  
Vol 47 ◽  
pp. 32-33
Author(s):  
S.A.C. Gould ◽  
B. Drake ◽  
C.B. Prater ◽  
A.L. Weisenhorn ◽  
S.M. Lindsay ◽  
...  
Keyword(s):  
Amino Acids ◽  
Dna Sequencing ◽  
Aqueous Solutions ◽  
Atomic Force Microscope ◽  
Piezoelectric Crystal ◽  
Atomic Force ◽  
Structure Of Molecules ◽  
Optical Lever

The atomic force microscope (AFM) is an instrument that can be used to image many samples of interest in biology and medicine. Images of polymerized amino acids, polyalanine and polyphenylalanine demonstrate the potential of the AFM for revealing the structure of molecules. Images of the protein fibrinogen which agree with TEM images demonstrate that the AFM can provide topographical data on larger molecules. Finally, images of DNA suggest the AFM may soon provide an easier and faster technique for DNA sequencing.The AFM consists of a microfabricated SiO2 triangular shaped cantilever with a diamond tip affixed at the elbow to act as a probe. The sample is mounted on a electronically driven piezoelectric crystal. It is then placed in contact with the tip and scanned. The topography of the surface causes minute deflections in the 100 μm long cantilever which are detected using an optical lever.

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