Poly(γ-glutamic acid)–silica hybrids with fibrous structure: effect of cation and silica concentration on molecular structure, degradation rate and tensile properties

RSC Advances ◽  
2014 ◽  
Vol 4 (94) ◽  
pp. 52491-52499 ◽  
Author(s):  
A. Obata ◽  
S. Ito ◽  
N. Iwanaga ◽  
T. Mizuno ◽  
J. R. Jones ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Glutamic Acid ◽  
Tensile Properties ◽  
Degradation Rate ◽  
Fibrous Structure ◽  
Structure Effect ◽  
Structure Degradation ◽  
Silica Concentration ◽  
Silica Hybrids

scholarly journals The molecular structure effect of cationic comb-type copolymers on nucleic acid chaperone activity

2005 ◽  
Vol 49 (1) ◽  
pp. 329-330 ◽  
Author(s):  
Sung Won Choi ◽  
Kaoru Takada ◽  
Junji Mochida ◽  
Asako Yamayosh ◽  
Arihiro Kano ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Nucleic Acid ◽  
Chaperone Activity ◽  
Structure Effect ◽  
Nucleic Acid Chaperone

Effect of air-absorbed oxygen and moisture on the chemical stability of photoexcitedMg,ZnandEuphthalocyanines in dimethylformamide

2006 ◽  
Vol 10 (01) ◽  
pp. 43-54 ◽  
Author(s):  
Rudolf Słota ◽  
Gabriela Dyrda ◽  
Zbigniew Hnatejko ◽  
Jerzy Karolczak ◽  
Zdzisław Stryła
Keyword(s):  
Molecular Structure ◽  
Molecular Oxygen ◽  
Chemical Stability ◽  
Degradation Rate ◽  
Chemical Properties ◽  
Fluorescence Lifetimes ◽  
Metal Phthalocyanines ◽  
Molecular Stability ◽  
Stabilizing Effect ◽  
Specific Affinity

Absorption of oxygen and moisture from air by MPc-DMF systems was studied and related to the molecular stability demonstrated by phthalocyanine complexes (unsubstituted MPc's : MgPc , ZnPc and EuPc2; Pc = phthalocyanine ligand, C32H16N8) subjected to UV irradiation. A lower stability of air-exposed dimethylformamide solutions is observed and is due to a specific affinity for molecular oxygen revealed by the Pc macrocycle. SEM results proved oxygen molecules fixed to the phthalocyanine solids by forces strong enough to sustain desorption under vacuum. Absorption curves determined for MPc-DMF systems also indicate oxygen accommodated by the phthalocyanine moiety. This explains the predominantly oxygen-mediated photolysis, as well as the very short fluorescence lifetimes of metal phthalocyanines. The effect of air-absorbed moisture on the photostability is much less pronounced and practically insignificant for concentrations of H2O lower than 1%. An apparent stabilizing effect of water was observed and elucidated basing on kinetic considerations. The degradation rate of the photoexcited phthalocyanine moiety in air-exposed solutions depends on individual chemical properties and the molecular structure of the complex. EuPc2proved very stable whereas the photostability of ZnPc and MgPc gradually decreased in the course of time.

scholarly journals Fuel molecular structure effect on autoignition of highly branched iso-alkanes at low-to-intermediate temperatures: Iso-octane versus iso-dodecane

2020 ◽  
Vol 214 ◽  
pp. 152-166 ◽  
Author(s):  
Ruozhou Fang ◽  
Goutham Kukkadapu ◽  
Mengyuan Wang ◽  
Scott W. Wagnon ◽  
Kuiwen Zhang ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Structure Effect

How starch-g-poly(acrylamide) molecular structure effect sizing properties

2020 ◽  
Vol 144 ◽  
pp. 403-409 ◽  
Author(s):  
Lili Wang ◽  
Xun Zhang ◽  
Jin Xu ◽  
Qiang Wang ◽  
Xuerong Fan
Keyword(s):  
Molecular Structure ◽  
Structure Effect ◽  
Poly Acrylamide

scholarly journals Synthesis of bioactive class II poly(γ-glutamic acid)/silica hybrids for bone regeneration

2010 ◽  
Vol 20 (40) ◽  
pp. 8952 ◽  
Author(s):  
Gowsihan Poologasundarampillai ◽  
Claudia Ionescu ◽  
Olga Tsigkou ◽  
Muthu Murugesan ◽  
Robert G. Hill ◽  
...  
Keyword(s):  
Glutamic Acid ◽  
Bone Regeneration ◽  
Class Ii ◽  
Silica Hybrids

Molecular Structure Effect of Pyridine-Based Surface Ligand on the Performance of P3HT:TiO2 Hybrid Solar Cell

2013 ◽  
Vol 5 (3) ◽  
pp. 1009-1016 ◽  
Author(s):  
Jhih-Fong Lin ◽  
Guang-Yao Tu ◽  
Chun-Chih Ho ◽  
Chun-Yu Chang ◽  
Wei-Che Yen ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cell ◽  
Hybrid Solar Cell ◽  
Structure Effect ◽  
Surface Ligand
Sign in / Sign up

Export Citation Format

Share Document