Specific in situ hepatitis B viral double mutation (HBVDM) detection in urine with 60 copies ml(-1) analytical sensitivity in a background of 250-fold wild type without DNA isolation and amplification.
Specific in situ hepatitis B viral double mutation (HBVDM) detection in urine with 60 copies ml(-1) analytical sensitivity in a background of 250-fold wild type without DNA isolation and amplification.
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DOI:
10.1039/c4an01885k
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发表时间:
2015-03-07
期刊:
影响因子:
--
通讯作者:
Shih WY
中科院分区:
文献类型:
--
作者:
Kirimli CE;Shih WH;Shih WY
We have examined in situ detection of hepatitis B virus 1762T/1764A double mutation (HBVDM) in urine using a (Pb(Mg1/3Nb2/3)O3)0.65(PbTiO3)0.35 (PMN-PT) piezoelectric plate sensor (PEPS) coated with a 16-nucleotide (nt) probe DNA (pDNA) complementary to the HBVDM. The in situ mutation (MT) detection was carried out in a flow with the PEPS vertically situated at the center of the flow in a background of the wild type (WT). For validation, the detection was followed with detection in the mixture of MT fluorescent reporter microspheres (FRMs) (MT FRMs) and WT FRMs that emitted different fluorescent colours and were designed to specifically bind to MT and WT, respectively. At 30°C and 4 ml/min, a PEPS was shown to specifically detect HBVDM in situ with 60 copies/ml analytical sensitivity in a background of clinically-relevant 250-fold more WT in 30 min without DNA isolation, amplification, or labelling as validated by the visualization of the captured MT FRMs and WT FRMs following the FRMs detection where the captured MT FRMs outnumbered WT FRMs by a factor of 5 to 1.
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