Retinoic acid (RA) induces the differentiation of many cell types such as epithelial cells and cancer cells. Clinically, RA has been demonstrated to be efficacious in the treatment of promyelocytic leukemia, a type of blood disease. RA has also been shown to affect patterning and neurogenesis in viv.....
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In the present invention we designed and synthesized a series of water-soluble linear and cyclic pi-conjugated organic compounds (hereinafter polyenes) with different chromophores including tetraphenylethylene, siloles, fulvene, butadienes, and 4H-pyrans. The emission color of these polyenes ranges .....
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A novel endoscopic imaging system for diagnosis of early cancer is described. Optical spectroscopy has been widely used in chemical analysis of biological samples. Since the mid-80s, the use of this technology for tissue classification has become a new approach in non-invasive medical diagnostics......
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Ammonia (NH3) and odorous smell (nitrogen containing compounds) in the air are contaminants and are harmful to human health. Since more and more people concern for the indoor air quality after the outbreak of SARS, methods have been developed to eliminate the contaminants.Conventional supported meta.....
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The Internet has been a widely-adopted means of media distribution in these days especially after the introduction of MPEG file format. To gain control over listeners', on-line suppliers of music files use authentication schemes to control listeners' access and access mode. Such arrangements requir.....
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