Zhenxuanyin (镇眩饮) is composed of pure Chinese medicinal herbs, such as gastrodia tuber, poria cocos, ligusticum wallichii etc. 4-verssel occlusion (4VO) model rats were reperfused after 30 minutes’ complete occlus...
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Zhenxuanyin (镇眩饮) is composed of pure Chinese medicinal herbs, such as gastrodia tuber, poria cocos, ligusticum wallichii etc. 4-verssel occlusion (4VO) model rats were reperfused after 30 minutes’ complete occlusion, and Zhenxuanyin was administered 3 times a day. 24 hours later, 123I-IMP uptake in the brain was evaluated as an index of cerebral blood flow (CBF). The results show that Zhenxuanyin (0.03g kg, 0.3g kg, Ig kg, or 3g/ kg a day) can greatly improve the blood flow in the main cerebral regions, and 0.3g/ kg can increase cerebral blood flow (CBF) to the normal level.
Supramolecular liquid crystals(SLCs)are attractive materials for fabricating devices with new optoelectronic *** SLCs are made from hydrogen-bonded ***,these mesogens suffer from high melting points,and the types of f...
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Supramolecular liquid crystals(SLCs)are attractive materials for fabricating devices with new optoelectronic *** SLCs are made from hydrogen-bonded ***,these mesogens suffer from high melting points,and the types of formable aggregates are limited owing to the directionality of the hydro-gen ***,to fabricate non-hydrogen-bonded SLCs,we hypothesized that the introduction of tertiary amide groups into calamitic molecules would be advantageous because they have an L-shaped structure with N-or C-alkyl side chains not aligned along the long axis and theflexibility to undergo cis–trans *** this study,we developed a novel non-hydrogen-bonded SLC by assembling an L-shaped dimer composed of calamitic molecules(phenyltolanes)with tertiary amides at their *** molecules exhibited a smectic B *** phase tran-sition temperature of the SLCs from crystal to liquid crystal phase was low despite the longπ-conjugated ***-angle X-ray diffraction and variable-temperature Fourier-transform infrared measurements revealed dimer formation by weak inter-molecular interactions,that is,the molecular recognition of L-shaped molecules,and mobility of the alkyl groups attached to amide driven by cis–trans isomerization in the liquid crystal ***,cis–trans isomerization of tertiary amides contributed enormously to the formation and lower clearing points of this *** developed method can be used not only to develop non-hydrogen-bonded SLCs but also to develop novel soft matter with controlled properties by incorporating the SLCs,as the aggregates can be controlled to impart desired functionalities.
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