Laser kinetic spectroscopy studies of the reaction of human hemoglobin with molecular oxygen

1995 ◽  
Author(s):  
Boris M. Dzhagarov ◽  
Nikolay N. Kruk ◽  
S. A. Tikhomirov ◽  
Ivan I. Stepuro
Keyword(s):  
Molecular Oxygen ◽  
Human Hemoglobin ◽  
Kinetic Spectroscopy ◽  
Laser Kinetic Spectroscopy ◽  
Spectroscopy Studies

scholarly journals Towards understanding non-equivalence of α and β subunits within human hemoglobin in conformational relaxation and molecular oxygen rebinding

2021 ◽  
Author(s):  
Sergei V. Lepeshkevich ◽  
Igor V. Sazanovich ◽  
Marina V. Parkhats ◽  
Syargey N. Gilevich ◽  
Boris M. Dzhagarov
Keyword(s):  
Molecular Oxygen ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Human Hemoglobin ◽  
Time Resolved ◽  
Conformational Relaxation ◽  
Α And Β Subunits ◽  
Millisecond Laser

Picosecond to millisecond laser time-resolved transient absorption spectroscopy was used to study molecular oxygen (O2) rebinding and conformational relaxation following O2 photodissociation in the α and β subunits within human...

The Reaction of S(3P) Atoms with Molecular Oxygen

1971 ◽  
Vol 49 (10) ◽  
pp. 1659-1664 ◽  
Author(s):  
R. W. Fair ◽  
A. Van Roodselaar ◽  
O. P. Strausz
Keyword(s):  
Molecular Oxygen ◽  
Rate Constant ◽  
Ground State ◽  
Vacuum Ultraviolet ◽  
Flash Photolysis ◽  
Ultraviolet Region ◽  
Kinetic Spectroscopy ◽  
Vacuum Ultraviolet Region

The rate constant of the reaction of ground state S(3P) atoms with molecular oxygen, S(3P) + O2(X3Σg−) → SO(X3Σ−) + O(3P), has been determined as (1.7 ± 0.2) × 1012 cm3 mol−s− at 298 °K by means of kinetic spectroscopy in the vacuum ultraviolet region. The source of S(3P) atoms was the isothermal flash photolysis of COS in the presence of Ar or CO2.

Detection of the silylene ν2 band by infrared diode laser kinetic spectroscopy

1989 ◽  
Vol 91 (8) ◽  
pp. 4582-4586 ◽  
Author(s):  
Chikashi Yamada ◽  
Hideto Kanamori ◽  
Eizi Hirota ◽  
Nobuki Nishiwaki ◽  
Naoshi Itabashi ◽  
...  
Keyword(s):  
Diode Laser ◽  
Kinetic Spectroscopy ◽  
Laser Kinetic Spectroscopy

Absorption and flash photolysis kinetic spectroscopy studies on difluoro-, chlorodifluoro-, dichlorofluoro-, and tetrafluorophosphine

1973 ◽  
Vol 77 (9) ◽  
pp. 1126-1128 ◽  
Author(s):  
Edeard G. Skolnik ◽  
Robert J. Salesi ◽  
Charles R. Russ ◽  
P. L. Goodfriend
Keyword(s):  
Flash Photolysis ◽  
Kinetic Spectroscopy ◽  
Spectroscopy Studies

scholarly journals Electro-Reduction of Molecular Oxygen Mediated by a Cobalt(II)octaethylporphyrin System onto Oxidized Glassy Carbon/Oxidized Graphene Substrate

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 629 ◽  
Author(s):  
Camila Canales ◽  
Leyla Gidi ◽  
Roxana Arce ◽  
Francisco Armijo ◽  
María Aguirre ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Molecular Oxygen ◽  
Glassy Carbon ◽  
Electrochemical Impedance ◽  
Kinetic Studies ◽  
Reduction Reaction ◽  
Force Microscopy ◽  
Electrocatalytic Effect ◽  
Spectroscopy Studies

The oxygen reduction reaction (ORR) is the most important reaction in life processes and in energy transformation. The following work presents the design of a new electrode which is composed by deposited cobalt octaethylporphyrin onto glassy carbon and graphene, where both carbonaceous materials have been electrochemically oxidized prior to the porphyrin deposition. The novel generated system is stable and has an electrocatalytic effect towards the oxygen reduction reaction, as a result of the significant overpotential shift in comparison to the unmodified electrode and to the electrodes used as target. Kinetic studies corroborate that the system is capable of reducing molecular oxygen via four electrons, with a Tafel slope value of 60 mV per decade. The systems were morphologically characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM) Electrochemical impedance spectroscopy studies showed that the electrode previously oxidized and modified with cobalt porphyrin is the system that possesses lower resistance to charge transfer and higher capacitance.

Infrared laser kinetic spectroscopy of the formation of CN (ν=0–8) in a discharge

1993 ◽  
Vol 173 (2) ◽  
pp. 187-191 ◽  
Author(s):  
Miklós Fehér ◽  
Andreas Rohrbacher ◽  
John P. Maier
Keyword(s):  
Infrared Laser ◽  
Kinetic Spectroscopy ◽  
Laser Kinetic Spectroscopy

Infrared laser kinetic spectroscopy of the H3+ ion

1994 ◽  
Vol 185 (3) ◽  
pp. 357-364 ◽  
Author(s):  
Miklós Fehér ◽  
Andreas Rohrbacher ◽  
John P. Maier
Keyword(s):  
Infrared Laser ◽  
Kinetic Spectroscopy ◽  
Laser Kinetic Spectroscopy
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