On the Specific Reactivity of Сarbooligoarylenes: Representatives of Oligomers with Conjugate System

2015 ◽  
pp. 63-76
Author(s):  
V Grigorovskaya
Keyword(s):  
Conjugate System ◽  
Specific Reactivity

scholarly journals A Novel Quinoxaline-Rhodamine Conjugate for a Simple and Efficient Detection of Hydrogen Sulphate Ion

Compounds ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 29-40
Author(s):  
Sutapa Sahu ◽  
Yeasin Sikdar ◽  
Riya Bag ◽  
Dilip K. Maiti ◽  
José P. Cerón-Carrasco ◽  
...  
Keyword(s):  
Solid Phase ◽  
Detection Limits ◽  
Hydrogen Sulfate ◽  
Absorption And Emission ◽  
Conjugate System ◽  
Colorimetric Chemosensor ◽  
Simple Strategy ◽  
Efficient Detection ◽  
Hydrogen Sulphate

This work presents the development of a quinoxaline and rhodamine conjugate system that acts as a colorimetric chemosensor for hydrogen sulfate (HSO4−) ions in methanol media. This sensor has been characterized both theoretically and experimentally. The detection limits for HSO4− are small as 0.71 µM and 3.8 µM for the absorption and emission experiments, respectively. The effectiveness of the probe in recognizing HSO4− both in gel and solid phase is evaluated as well. Thus, this works presents a simple strategy to detect the environmental HSO4− pollutant event at tiny concentrations.

scholarly journals A doxorubicin–platinum conjugate system: impacts on PI3K/AKT actuation and apoptosis in breast cancer cells

RSC Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 4818-4828
Author(s):  
Puja Patel ◽  
Devan Umapathy ◽  
Selvambigai Manivannan ◽  
Vinita Manimaran Nadar ◽  
Rajiu Venkatesan ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Drug Delivery ◽  
Cancer Cells ◽  
Breast Cancer Cells ◽  
Conjugate System ◽  
Drug Delivery Applications

In recent years, the development of a nano-conjugate system for drug delivery applications has gained attention among researchers.

scholarly journals Consecutive ruptures on a complex conjugate fault system during the 2018 Gulf of Alaska earthquake

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shinji Yamashita ◽  
Yuji Yagi ◽  
Ryo Okuwaki ◽  
Kousuke Shimizu ◽  
Ryoichiro Agata ◽  
...  
Keyword(s):  
Gulf Of Alaska ◽  
Source Model ◽  
Fault System ◽  
Complex Conjugate ◽  
Inversion Method ◽  
Fault Geometry ◽  
Conjugate System ◽  
Finite Fault Inversion ◽  
Finite Fault ◽  
Alaska Earthquake

AbstractWe developed a flexible finite-fault inversion method for teleseismic P waveforms to obtain a detailed rupture process of a complex multiple-fault earthquake. We estimate the distribution of potency-rate density tensors on an assumed model plane to clarify rupture evolution processes, including variations of fault geometry. We applied our method to the 23 January 2018 Gulf of Alaska earthquake by representing slip on a projected horizontal model plane at a depth of 33.6 km to fit the distribution of aftershocks occurring within one week of the mainshock. The obtained source model, which successfully explained the complex teleseismic P waveforms, shows that the 2018 earthquake ruptured a conjugate system of N-S and E-W faults. The spatiotemporal rupture evolution indicates irregular rupture behavior involving a multiple-shock sequence, which is likely associated with discontinuities in the fault geometry that originated from E-W sea-floor fracture zones and N-S plate-bending faults.

scholarly journals Evidence that the active centre of chymopapain A is different from the active centres of some other cysteine proteinases and that the Brønsted coefficient (βnuc.) for the reactions of thiolate anions with 2,2′-dipyridyl disulphide may be decreased by reagent protonation

1980 ◽  
Vol 189 (1) ◽  
pp. 189-192 ◽  
Author(s):  
K Brocklehurst ◽  
B S Baines ◽  
M S Mushiri
Keyword(s):  
Carica Papaya ◽  
Cysteine Proteinases ◽  
Active Centre ◽  
Pka Values ◽  
Nitrobenzoic Acid ◽  
Specific Reactivity ◽  
Ph Range ◽  
Thiolate Anions ◽  
Active Centres

The active centres of chymopapains A and B (jointly designated EC 3.4.22.6) and papaya (Carica papaya L.) peptidase A were investigated by using 2,2′-dipyridyl disulphide and 5,5′-dithiobis-(2-nitrobenzoic acid) as thiol-specific reactivity probes. Whereas the first active-centre pKa values for chymopapain B and papaya peptidase A are less than 5, is as the case for papain (EC 3.4.22.2) and ficin (EC 3.4.22.3), that for chymopapain A is about 6.8. The reason why the reactions of thiols of pKa approx. 6.5 with 2.2′-dipyridyl disulphide are essentially pH-independent in the pH range around the thiol pKa is delineated. The value of the Brønsted coefficient (beta nuc.) for the reactions of thiolate ions with the 2,2′-dipyridyl disulphide monocation appears to be smaller than its value for the corresponding reactions with the neutral disulphide.

Photochromism of a novel 6π conjugate system having a bis(2,3′-benzothienyl) unit

2004 ◽  
pp. 1010-1011 ◽  
Author(s):  
Tadatsugu Yamaguchi ◽  
Yuji Fujita ◽  
Masahiro Irie
Keyword(s):  
Conjugate System

Antibody to liver membrane antigens in chronic active hepatitis. IV. Exclusion of specific reactivity to polypeptides and glycolipids by immunoblotting

Hepatology ◽  
1987 ◽  
Vol 7 (1) ◽  
pp. 4-10 ◽  
Author(s):  
Ian H. Frazer ◽  
T. William Jordan ◽  
Elizabeth C. Collins ◽  
Paul Andrews ◽  
Ian R. Mackay
Keyword(s):  
Chronic Active Hepatitis ◽  
Liver Membrane ◽  
Membrane Antigens ◽  
Specific Reactivity

The effects of an antiserum to the contractile proteins of the heart on the developing rat embryo

Development ◽  
1971 ◽  
Vol 25 (2) ◽  
pp. 203-212
Author(s):  
Colin L. Berry
Keyword(s):  
Rat Heart ◽  
Contractile Proteins ◽  
Degenerative Changes ◽  
Foetal Death ◽  
Rat Embryo ◽  
Electron Microscopic ◽  
Microscopic Studies ◽  
Specific Reactivity ◽  
Developing Rat ◽  
Isolated Rat

An antiserum with specific reactivity against the contractile proteins of the rat heart has been raised in the rabbit. Fractions of the serum have been shown to enter the isolated rat embryo by electron-microscopic studies with ferritin, where they bind to the myocardium, producing degenerative changes. Both IgG and IgM fractions are toxic, producing foetal death in a large proportion of explanted embryos.

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