• 제목/요약/키워드: endoperoxides

검색결과 2건 처리시간 0.016초

Polyvinyl butyral DMN-conjugates for the controlled release of singlet oxygen in medical and antimicrobial applications

  • Posavec, Damir;Muller, Rainer;Bogner, Udo;Bernhardt, Gunther;Knor, Gunther
    • Biomaterials and Biomechanics in Bioengineering
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    • 제1권2호
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    • pp.73-79
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    • 2014
  • Covalent attachment of 1, 4-dimethylnaphthalene (DMN) based endoperoxide forming subunits to a polyvinyl butyral (PVB) backbone has been achieved. The functionalized polymer materials prepared and characterized here can serve as biocompatible carrier systems for studying cellular uptake, intermediate storage and delayed release of singlet oxygen, which opens up new doors for optimizing a variety of medical applications of photogenerated DMN-endoperoxides such as antiviral, antibacterial, antiplasmodial and antitumor activity.

Cytotoxic Peroxides from Artemisia stolonifera

  • Kwon, Hak-Cheol;Choi, Sang-Un;Lee, Kang-Ro
    • Archives of Pharmacal Research
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    • 제23권2호
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    • pp.151-154
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    • 2000
  • Two sesquiterpene endoperoxides, 1S, 4R, 6R-1, 4-endoperoxy-bisabola-2, 10-diene (1), 1R, 4S, 6R-1, 4-endoperoxy-bisabola-2, 10-diene (II), and a sesquiterpene hydroperoxide, 1$\beta$-hydroperoxygermacra-4 (15), 5, 10 (14)-triene (III) were isolated from the aerial parts of Artemisia stolonifera (Compositae). Their chemical structures were assigned by spectral evidences. Compounds I and II exhibited cytotoxicity against five human tumor cell lines with their $\ED_50 values ranging from 0.20 to 5.43 ${\mu}g/m\ell$ and from <0.1 to 0.87 ${\mu}g/m\ell$, respectively.

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