Resonance Raman studies of metal tetrakis(4-N-methylpyridyl)porphine: band assignments, structure-sensitive bands, and species equilibria

1986 ◽  
Vol 90 (13) ◽  
pp. 2847-2852 ◽  
Author(s):  
Nils Blom ◽  
Junichi Odo ◽  
Kazuo Nakamoto ◽  
Dennis P. Strommen
Keyword(s):  
Resonance Raman ◽  
Structure Sensitive

Structure-sensitive resonance Raman bands of tetraphenyl and "picket fence" porphyrin-iron complexes, including an oxyhemoglobin analog

1978 ◽  
Vol 100 (19) ◽  
pp. 6083-6088 ◽  
Author(s):  
J. M. Burke ◽  
J. R. Kincaid ◽  
S. Peters ◽  
R. R. Gagne ◽  
J. P. Collman ◽  
...  
Keyword(s):  
Resonance Raman ◽  
Iron Complexes ◽  
Picket Fence ◽  
Structure Sensitive

Quaternary Structure Sensitive Tyrosine Residues in Human Hemoglobin:  UV Resonance Raman Studies of Mutants at α140, β35, and β145 Tyrosine†

Biochemistry ◽  
1999 ◽  
Vol 38 (4) ◽  
pp. 1243-1251 ◽  
Author(s):  
Masako Nagai ◽  
Henri Wajcman ◽  
Agnes Lahary ◽  
Takashi Nakatsukasa ◽  
Shigenori Nagatomo ◽  
...  
Keyword(s):  
Quaternary Structure ◽  
Resonance Raman ◽  
Human Hemoglobin ◽  
Tyrosine Residues ◽  
Structure Sensitive ◽  
Uv Resonance Raman

Tailoring microstructures of materials through biomimetics

1993 ◽  
Vol 51 ◽  
pp. 500-501
Author(s):  
Mehmet Sarikaya ◽  
Ilhan A. Aksay
Keyword(s):  
Chemical Properties ◽  
Design And Synthesis ◽  
Structure Sensitive ◽  
Macro Scale ◽  
Methods Of Synthesis ◽  
Successive Level ◽  
Engineering Materials ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Synthesis Of Materials

Biomimetics involves investigation of structure, function, and methods of synthesis of biological composite materials. The goal is to apply this information to the design and synthesis of materials for engineering applications.Properties of engineering materials are structure sensitive through the whole spectrum of dimensions from nanometer to macro scale. The goal in designing and processing of technological materials, therefore, is to control microstructural evolution at each of these dimensions so as to achieve predictable physical and chemical properties. Control at each successive level of dimension, however, is a major challenge as is the retention of integrity between successive levels. Engineering materials are rarely fabricated to achieve more than a few of the desired properties and the synthesis techniques usually involve high temperature or low pressure conditions that are energy inefficient and environmentally damaging.In contrast to human-made materials, organisms synthesize composites whose intricate structures are more controlled at each scale and hierarchical order.

Time Dependances of the Resistance Coefficients of Polymeric Materials

INEOS OPEN ◽  
2020 ◽  
Vol 3 ◽  
Author(s):  
A. V. Matseevich ◽  
◽  
A. A. Askadskii ◽  
Keyword(s):  
Time Dependence ◽  
Physical Mechanism ◽  
Polymeric Materials ◽  
Resistance Coefficient ◽  
Constant Stress ◽  
Time To Rupture ◽  
Structure Sensitive ◽  
Material Durability ◽  
Resistance Coefficients ◽  
Extremal Character

One of the possible approaches to the analysis of a physical mechanism of time dependence for the resistance coefficients of materials is suggested. The material durability at the constant stress is described using the Zhurkov and Gul' equations and the durability at the alternating stress—using the Bailey criterion. The low strains lead to structuring of a material that is reflected in a reduction of the structure-sensitive coefficient in these equations. This affords 20% increase in the durability. The dependence of the resistance coefficient assumes an extremal character; the maximum is observed at the time to rupture lg tr ≈ 2 (s).

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