Design of liposome-based pH sensitive nanoSPIN probes: nano-sized particles with incorporated nitroxides.
Design of liposome-based pH sensitive nanoSPIN probes: nano-sized particles with incorporated nitroxides.
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DOI:
10.1039/b818184e
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发表时间:
2009-05
期刊:
影响因子:
--
通讯作者:
Khramtsov VV
中科院分区:
文献类型:
--
作者:
Woldman YY;Semenov SV;Bobko AA;Kirilyuk IA;Polienko JF;Voinov MA;Bagryanskaya EG;Khramtsov VV
Liposome-based nanoSized Particles with Incorporated Nitroxides, or nanoSPINs, were designed for EPR applications as pH probes in biological systems. Phospholipid membrane of the liposomes with incorporated gramicidin A showed selective permeability to a small analyte, H+, while protecting entrapped sensing nitroxide from biological reductants. An application of the pH-sensitive nanoSPIN in an ischemia model in rat heart homogenate allows for monitoring ischemia-induced acidosis while protecting encapsulated nitroxide against bioreduction.
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