Super-resolution mbPAINT for optical localization of single-stranded DNA.
Super-resolution mbPAINT for optical localization of single-stranded DNA.
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DOI:
10.1021/am403984k
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发表时间:
2013-10-09
影响因子:
9.5
通讯作者:
Landes, Christy F.
中科院分区:
文献类型:
--
作者:
Chen, Jixin;Bremauntz, Alberto;Kisley, Lydia;Shuang, Bo;Landes, Christy F.
关键词:
We demonstrate the application of super-localization microscopy to identify sequence-specific portions of single-stranded DNA (ssDNA) with sequence resolution of 50 nucleotides, corresponding to a spatial resolution of 30 nm. Super-resolution imaging was achieved using a variation of a single-molecule localization method, termed as ‘motion blur’ point accumulation for imaging in nanoscale topography (mbPAINT). The target ssDNA molecules were immobilized on the substrate. Short, dye-labeled, and complementary ssDNA molecules stochastically bound to the target ssDNA, with repeated binding events allowing super-resolution. Sequence specificity was demonstrated via the use of a control, non-complementary probe. The results support the possibility of employing relatively inexpensive short ssDNAs to identify gene sequence specificity with improved resolution in comparison to the existing methods.
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影响因子:
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Biteen, Julie S.;Thompson, Michael A.;Tselentis, Nicole K.;Bowman, Grant R.;Shapiro, Lucy;Moerner, W. E.
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影响因子:
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DOI:
10.1073/pnas.0907866106
发表时间:
2009-12-29
影响因子:
11.1
作者:
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通讯作者:
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