کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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175669 | 458918 | 2015 | 7 صفحه PDF | دانلود رایگان |
• Two multi-branched dyes based on curcumin are synthesized.
• The obtained compounds exhibited large TPA cross-section.
• The obtained compounds have low toxicities.
• The dye 1 could used potentially as biological probe.
• The dye 1 could accumulated rapidly in tumor tissues.
Two novel multibranched dyes curcumin-based: 1,7-bis(4′-propyloxy-3′-methyloxy-phenyl)-3-propyloxy-5-carbonyl-1,6-heptadiene (dye 1) and 1,7-bis(4′-acetate ethyloxy-3′-methyloxy-phenyl)-1,6-heptadiene-4,4-diacetate ethyl-3,5-dione (dye 2) were easily prepared. Their one- and two-photon absorption properties have been investigated carefully. The two-photon absorption (TPA) cross sections measured by two-photon excited fluorescence (TPEF) were determined to be 1143 and 842 GM for dye 1 and dye 2, respectively. Cell viability tests revealed the as-prepared compounds possessed low cytotoxicity against MCF-7 cell lines over a period of at least 24 h. In addition, in vitro and in vivo studies demonstrated the dye 1 could enter into tumor cells, and even rapid accumulate in tumor tissues, which makes it an ideal organic material for biomedical imaging.
Two novel multi-branched dyes based on curcumin had been synthesized. The experimental results show that the as-prepared compounds bear low toxicity, strong TPEF and large TPA cross-section, which has been used potentially for biological two-photon fluorescent probe.Figure optionsDownload as PowerPoint slide
Journal: Dyes and Pigments - Volume 123, December 2015, Pages 267–273