scholarly journals Acridinium Ester Chemiluminescence: Methyl Substitution on the Acridine Moiety

2021 ◽  
Vol 70 (11) ◽  
pp. 1677-1684
Author(s):  
Manabu Nakazono ◽  
Shinkoh Nanbu ◽  
Takeyuki Akita ◽  
Kenji Hamase
Keyword(s):  
Methyl Substitution ◽  
Acridinium Ester

Ultrasensitive chemiluminescence immunoassay with enhanced precision for the detection of cTnI amplified by acridinium ester-loaded microspheres and internally calibrated by magnetic fluorescent nanoparticles

Nanoscale ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 3275-3284
Author(s):  
Huan Zhao ◽  
Qifeng Lin ◽  
Li Huang ◽  
Yunfeng Zhai ◽  
Yuan Liu ◽  
...  
Keyword(s):  
Human Body ◽  
Accurate Diagnosis ◽  
Fluorescent Nanoparticles ◽  
Internal Standards ◽  
Chemiluminescence Immunoassay ◽  
Potential Signal ◽  
Acridinium Ester ◽  
Hydrogel Microspheres

Hydrogel microspheres sensitive to temperature as new potential signal enhancers and magnetic fluorescent nanoparticles as internal standards were used to establish a new CLIA method for the accurate diagnosis of cTnI in the human body.

Methyl Substitution as a Probe for π-Spin Distribution in the Radical Anion of 1,6-Methano[10]annulene

1976 ◽  
Vol 59 (4) ◽  
pp. 1371-1375 ◽  
Author(s):  
Fabian Gerson ◽  
Klaus Müllen ◽  
Christoph Wydler
Keyword(s):  
Radical Anion ◽  
Spin Distribution ◽  
Methyl Substitution

Optimal labelling of proteins with acridinium ester

1988 ◽  
Vol 205 ◽  
pp. 267-271 ◽  
Author(s):  
Gijsbert Zomer ◽  
Rijk H. van den Berg ◽  
Eugène H.J.M. Jansen
Keyword(s):  
Acridinium Ester

Radiolysis of methylcyclopentane. III. Liquid phase mechanism and comparison of cycloalkanes

1968 ◽  
Vol 46 (20) ◽  
pp. 3235-3240 ◽  
Author(s):  
Gordon R. Freeman ◽  
E. Diane Stover
Keyword(s):  
Liquid Phase ◽  
Gas Phase ◽  
Bond Cleavage ◽  
Open Chain ◽  
Methyl Substitution ◽  
Product Yields ◽  
Total Ionization ◽  
Gamma Radiolysis ◽  
G Value

The initial yields of the major products of the gamma radiolysis of liquid methylcyclopentane (MCP) at 25° are: G(H2) = 4.2, G(1-methylcyclopentene plus methylenecyclopentane) = 2.7, G(3- plus 4-methyl-cyclopentene) = 1.0, G(open chain hexene) = 1.0, and G(bimethylcyclopentyl) = 0.9. The effects of scavengers on the product yields are reported and the mechanism is discussed.The liquid phase radiolytic decompositions of cyclohexane (CH), methylcyclohexane (MCH), cyclopentane (CP), and MCP are compared. The net amount of C—C bond cleavage is much greater in the five-membered than in the six-membered rings. Methyl substitution on the ring reduces G(H2) by about one unit, mainly because of the formation of a type of ion (QH+) that does not yield hydrogen when neutralized by an electron. The QH+ type ions are formed in MCH and MCP, but not in CH and CP. In all the systems, another type of ion (N+) that does not yield hydrogen when neutralized by an electron is formed with a G value of about unity. The type of ion (PH+) that does yield hydrogen when neutralized by an electron has a G value of 3.4 in CH and CP, but only 2.0 in MCP. It is concluded that G(total ionization) is in the vicinity of 4.4 in the liquid compounds, virtually the same as the gas phase values.

Temperature Dependent Solvent Effects in Photochemistry of 1-Phenylpentan-1-ones

1999 ◽  
Vol 64 (12) ◽  
pp. 2007-2018 ◽  
Author(s):  
Petr Klán ◽  
Jaromír Literák
Keyword(s):  
Solvent Effects ◽  
Solvent Polarity ◽  
Structure Change ◽  
Type Ii ◽  
Temperature Dependent ◽  
Methyl Derivative ◽  
Methyl Substitution ◽  
Weak Bases ◽  
Norrish Type ◽  
Small Structure

Temperature dependent solvent effects have been investigated on the Norrish Type II reaction of 1-phenylpentan-1-one and its p-methyl derivative. Efficiencies of the photoreaction were studied in terms of solvent polarity and base addition as a function of temperature. Such a small structure change as the p-methyl substitution in 1-phenylpentan-1-one altered the temperature dependent photoreactivity in presence of weak bases. The experimental results suggest that the hydrogen bonding between the Type II biradical intermediate OH group and the solvent is weaker for 1-(4-methylphenyl)pentan-1-one than that for 1-phenylpentan-1-one at 20 °C but the interactions probably vanish in both cases at 80 °C.

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