کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1171714 | 1491177 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface plasmon resonance imaging as a multidimensional surface characterization instrument-Application to biochip genotyping
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Surface plasmon resonance imaging (SPRI) sensors allow the characterization of a metal/dielectric interface. Providing proper biochemical functionalization and spatial structuration of the functionalized surface, an optical biochip system - label free and real time - can be achieved. We study the impact of the different physical parameters on the quality of the measurements. Such a SPRI system has a great sensitivity to small variations of the physical parameters (layer optical index, thickness, etc.) occuring at the sensor surface. Precision and reliability of the measurements are provided by a multidimensional approach (4D i.e. spatial coordinates x-y, time t, angle of incidence θ) allowing multiple self-calibration procedures. Such apparatus has already been successfully applied in genomics and proteomics, studying DNA:DNA and oligosaccharide:protein interactions. In this article, we illustrate the advantages of the SPRI setup applied to the detection of gene mutations, using as a model the genetic disease Cystic Fibrosis. The results demonstrate that the system is able to monitor and analyse the interaction under investigation, allowing the diagnosis of genetic single nucleotide polymorphisms by exploiting only a part of the multidimensional potential (x, y, t, θ).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volumes 573â574, 28 July 2006, Pages 333-340
Journal: Analytica Chimica Acta - Volumes 573â574, 28 July 2006, Pages 333-340
نویسندگان
Pierre Lecaruyer, Ilaria Mannelli, Virginie Courtois, Michel Goossens, Michael Canva,