The problem of self-calibration of fluorescence signal in microscale sensor systems

被引：63

作者：

Demchenko, AP ^{[1
]}

机构：

[1] TUBITAK Res Inst Genet Engn & Biotechnol, TR-41470 Gebze, Turkey

[2] Univ Strasbourg 1, Fac Pharm, UMR 7034, F-67401 Illkirch Graffenstaden, France

[3] AV Palladin Biochem Inst, UA-01030 Kiev, Ukraine

来源：

LAB ON A CHIP | 2005年 / 5卷 / 11期

关键词：

D O I：

10.1039/b507447a

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Most recent developments in fluorescent molecular sensor devices are based on ``ON-OFF'' switching, which is an operation with a single measurable parameter, commonly the quenching of total intensity. In the meantime, with this approach self-calibration on the molecular level is not achievable. This calibration is strongly needed in all kinds of microscale applications, including microarrays, microfluidic systems and living cell imaging. Different possibilities are discussed for overcoming this difficulty and an "OR-OR'' switching concept is suggested that involves the two-channel detection as a promising solution. For achieving the desired efficiency specific conditions are needed: it should be a single reporter dye exhibiting rapid reversible excited-state reaction and providing two-band wavelength ratiometric response.

引用

页码：1210 / 1223

页数：14

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