8 research outputs found
The growth promoting effect of mammalian thioredoxin and the redox regulation of intestinal epithelial regeneration
No full textNovel Material Processing for Powder Surface. Particle Electrification and Electrostatic Properties of Particle and Wall.
No full textIdentification of granulocyte-macrophage colony stimulating factor in the rat paneth cells by singie cell RT-PCR technique and cDNA array
No full textInvolvement of tumor necrosis factor αin intestinal epithelial cell proliferation following paneth cell destruction
No full text
Gram-Scale Syntheses and Conductivities of [10]Cycloparaphenylene and Its Tetraalkoxy Derivatives
No full text[10]Cycloparaphenylene
([10]CPP) and its tetraalkoxy derivatives
were synthesized on the gram scale in 7 steps starting from 1,4-benzoquinone
or 2,5-dialkoxy-1,4-benzoquinone. The key steps involve the highly <i>cis</i>-selective bis-addition of 4-bromo-4′-lithiobiphenyl
to the quinones to produce a five-ring unit containing cyclohexa-1,4-diene-3,6-diol
moiety, the platinum-mediated dimerization of the five-ring unit,
and the H<sub>2</sub>SnCl<sub>4</sub>-mediated reductive aromatization
of cyclohexadienediol. The tetraalkoxy substituents increased the
solubility of [10]CPP in common organic solvents. The carrier-transport
properties of thin films of [10]CPP and its derivatives were measured
for the first time and indicated that [10]CPP derivatives could rival
phenyl-C<sub>61</sub>-butyric acid methyl ester, which is used widely
as an <i>n</i>-type active layer in bulk heterojunction
photovoltaics
