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Combining with seed coating method, rhodamine B (RB), a kind of fluorescent compounds had been used in seed labeling as an anti-counterfeiting technology. Effects of broad bean seed coating with RB on physiological parameters and fluorescence performance in broad bean seedlings were performed. The prolonged fluorescence in vascular bundles of seedlings treated with RB could be used as a marker of...
A new and non-invasive method adapted for optical diagnosis of early caries is proposed by researching on the interaction mechanism of laser with dental tissue and relations of remitted light with optical properties of the tissue. This method without light filter, differed from the DIAGNodentreg and PNC method in its ability for registering fluorescence spectrum. The characteristic spectrum of dental...
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