Observation of Redox-State-Dependent Reversible Local Structural Change of Ferrocenyl-Terminated Molecular Island by Electrochemical Frequency Modulation AFM

Langmuir ◽  
2010 ◽  
Vol 26 (11) ◽  
pp. 9104-9110 ◽  
Author(s):  
Ken-ichi Umeda ◽  
Ken-ichi Fukui
Keyword(s):  
Structural Change ◽  
Frequency Modulation ◽  
Redox State ◽  
State Dependent ◽  
Local Structural Change

scholarly journals Redox-State Dependent Spectroscopic Properties of Porous Organic Polymers Containing Furan, Thiophene, and Selenophene

2017 ◽  
Vol 70 (11) ◽  
pp. 1227 ◽  
Author(s):  
Carol Hua ◽  
Stone Woo ◽  
Aditya Rawal ◽  
Floriana Tuna ◽  
James M. Hook ◽  
...  
Keyword(s):  
Solid State ◽  
Redox State ◽  
Spectroscopic Properties ◽  
Structural Features ◽  
Organic Polymers ◽  
Stimuli Responsive ◽  
Porous Organic Polymers ◽  
Paramagnetic Resonance ◽  
Responsive Materials ◽  
State Dependent

A series of electroactive triarylamine porous organic polymers (POPs) with furan, thiophene, and selenophene (POP-O, POP-S, and POP-Se) linkers have been synthesised and their electronic and spectroscopic properties investigated as a function of redox state. Solid state NMR provided insight into the structural features of the POPs, while in situ solid state Vis-NIR and electron paramagnetic resonance spectroelectrochemistry showed that the distinct redox states in POP-S could be reversibly accessed. The development of redox-active porous organic polymers with heterocyclic linkers affords their potential application as stimuli responsive materials in gas storage, catalysis, and as electrochromic materials.

scholarly journals Glucose-6-Phosphate Dehydrogenase of Trypanosomatids: Characterization, Target Validation, and Drug Discovery

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Shreedhara Gupta ◽  
Mariana Igoillo-Esteve ◽  
Paul A. M. Michels ◽  
Artur T. Cordeiro
Keyword(s):  
Oxidative Stress ◽  
Enzyme Activity ◽  
Trypanosoma Brucei ◽  
Redox State ◽  
Chemotherapeutic Agents ◽  
Dependent Manner ◽  
Target Validation ◽  
Leishmania Mexicana ◽  
State Dependent ◽  
Glucose 6 Phosphate Dehydrogenase

In trypanosomatids, glucose-6-phosphate dehydrogenase (G6PDH), the first enzyme of the pentosephosphate pathway, is essential for the defense of the parasite against oxidative stress. Trypanosoma brucei, Trypanosoma cruzi, and Leishmania mexicana G6PDHs have been characterized. The parasites' G6PDHs contain a unique 37 amino acid long N-terminal extension that in T. cruzi seems to regulate the enzyme activity in a redox-state-dependent manner. T. brucei and T. cruzi G6PDHs, but not their Leishmania spp. counterpart, are inhibited, in an uncompetitive way, by steroids such as dehydroepiandrosterone and derivatives. The Trypanosoma enzymes are more susceptible to inhibition by these compounds than the human G6PDH. The steroids also effectively kill cultured trypanosomes but not Leishmania and are presently considered as promising leads for the development of new parasite-selective chemotherapeutic agents.

Redox-state dependent activation of silanes and ammonia with reverse polarity (PCcarbeneP)Ni complexes: electrophilic vs. nucleophilic carbenes

2018 ◽  
Vol 47 (46) ◽  
pp. 16789-16797 ◽  
Author(s):  
Etienne A. LaPierre ◽  
Warren E. Piers ◽  
Chris Gendy
Keyword(s):  
Redox State ◽  
Nickel Complexes ◽  
Synthesis And Characterization ◽  
Reverse Polarity ◽  
Nucleophilic Carbenes ◽  
State Dependent

A rigidified PCalkylP ligand allowed for the synthesis and characterization of cationic and radical PCCarbeneP nickel complexes in which the carbene anchor of the pincer framework is electrophilic rather than nucleophilic.

Cr-Triggered Local Structural Change in Cr2Ge2Te6 Phase Change Material

2019 ◽  
Vol 11 (46) ◽  
pp. 43320-43329 ◽  
Author(s):  
Shogo Hatayama ◽  
Yi Shuang ◽  
Paul Fons ◽  
Yuta Saito ◽  
Alexander V. Kolobov ◽  
...  
Keyword(s):  
Structural Change ◽  
Phase Change ◽  
Phase Change Material ◽  
Change Material ◽  
Local Structural Change

Redox-State-Dependent Complex Formation between Pseudoazurin and Nitrite Reductase

2007 ◽  
Vol 129 (1) ◽  
pp. 226-233 ◽  
Author(s):  
Antonietta Impagliazzo ◽  
Anneloes J. Blok ◽  
Matthew J. Cliff ◽  
John E. Ladbury ◽  
Marcellus Ubbink
Keyword(s):  
Complex Formation ◽  
Nitrite Reductase ◽  
Redox State ◽  
State Dependent
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