Oxygen Effect as an Explanation of Differences between the Action of α-Particles and X- or γ-Rays on Aqueous Solutions of Amino-acids and Proteins

Nature ◽  
1962 ◽  
Vol 195 (4843) ◽  
pp. 798-800 ◽  
Author(s):  
A. J. SWALLOW ◽  
J. A. VELANDIA
Keyword(s):  
Amino Acids ◽  
Aqueous Solutions ◽  
Oxygen Effect ◽  
Γ Rays ◽  
Α Particles

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.

Enthalpic Interactions of Amino Acids with Glucose in Aqueous Solutions at 298.15 K

2003 ◽  
Vol 32 (11) ◽  
pp. 977-985 ◽  
Author(s):  
Huaji Liu ◽  
Ruisen Lin ◽  
Honglin Zhang
Keyword(s):  
Amino Acids ◽  
Aqueous Solutions

Radiation-induced degradation of hydroxyl-containing amino acids in aqueous solutions

2012 ◽  
Vol 46 (4) ◽  
pp. 235-240 ◽  
Author(s):  
A. A. Sladkova ◽  
A. A. Sosnovskaya ◽  
I. P. Edimecheva ◽  
V. A. Knizhnikov ◽  
O. I. Shadyro
Keyword(s):  
Amino Acids ◽  
Aqueous Solutions ◽  
Radiation Induced

NMR Relaxation Studies in Aqueous Solutions of Amino Acids

1994 ◽  
Vol 27 (4) ◽  
pp. 219-224
Author(s):  
V. Arulmozhi ◽  
A. Srinivasa Rao
Keyword(s):  
Amino Acids ◽  
Aqueous Solutions ◽  
Nmr Relaxation ◽  
Relaxation Studies

scholarly journals Evaluation the Safety and Security Procedures used In X-ray Clinics in Al-Harthiya-Baghdad

2021 ◽  
Vol 2114 (1) ◽  
pp. 012009
Author(s):  
Thuraya A. Abdul Hussian ◽  
Anwar kh. Farman
Keyword(s):  
Ionizing Radiation ◽  
X Rays ◽  
X Ray ◽  
Beta Particles ◽  
Medical Clinics ◽  
Γ Rays ◽  
Health Laws ◽  
Different Sources ◽  
Α Particles ◽  
Security Procedures

Abstract Radiation is a form of energy, its emitted either in the form of particles such as α-particles and β-particles (beta particles including the electron and the positron) or waves such as sunlight, X-rays and γ-rays. Radiation found everywhere around us and it comes from many different sources naturally or man-made sources. In this study a questionnaire was distributed to people working in the field of X-rays that used for a medical imaging (X-ray and CT-scan) to evaluate the extent of awareness and knowledge in estimate the damage of ionizing radiation as a result of wrong use. The questionnaire was distributed to medical clinics in Al-Harithiya in Baghdad, which it’s considered as one of the important areas in Iraq to attract and treat patients. It’s found that most of the commitment of radiography clinics by safety and security procedures. Most of the radiology clinics abide by most of the Iraqi Ministry of Health laws. However, some clinics did not implement some of the security and safety conditions

scholarly journals Experimental verification of photostability for free- and bound-amino acids exposed to γ-rays and UV irradiation

2004 ◽  
Vol 56 (7) ◽  
pp. 669-674 ◽  
Author(s):  
Yoshinori Takano ◽  
Takeo Kaneko ◽  
Kensei Kobayashi ◽  
Daisuke Hiroishi ◽  
Hidematsu Ikeda ◽  
...  
Keyword(s):  
Amino Acids ◽  
Uv Irradiation ◽  
Experimental Verification ◽  
Γ Rays
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