國家衛生研究院 NHRI:Item 3990099045/7362
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    題名: Fluorescent hydroxylamine derived from the fragmentation of PAMAM dendrimers for intracellular hypochlorite recognition
    作者: Wu, TH;Liu, CP;Chien, CT;Lin, SY
    貢獻者: Center for Nanomedicine Research
    摘要: Herein, a promising sensing approach based on the structure fragmentation of poly(amidoamine) (PAMAM) dendrimers for the selective detection of intracellular hypochlorite (OCl- ) is reported. PAMAM dendrimers were easily disrupted by a cascade of oxidations in the tertiary amines of the dendritic core to produce an unsaturated hydroxylamine with blue fluorescence. Specially, the novel fluorophore was only sensitive to OCl- , one of reactive oxygen species (ROS), resulting in an irreversible fluorescence turn-off. The fluorescent hydroxylamine was selectively oxidised by OCl- to form a labile oxoammonium cation that underwent further degradation. Without using any troublesomely synthetic steps, the novel sensing platform based on the fragmentation of PAMAM dendrimers, can be applied to detect OCl- in macrophage cells. The results suggest that the sensing approach may be useful for the detection of intracellular OCl- with minimal interference from biological matrixes.
    日期: 2013-08
    關聯: Chemistry. 2013 Aug;19(35):11672-11675.
    Link to: http://dx.doi.org/10.1002/chem.201300494
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0947-6539&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000323196500033
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84882911736
    顯示於類別:[林淑宜] 期刊論文

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