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I. Szendrő MicroVacuum Ltd. Kerékgyártó u. 10 H-1147 Budapest Hungary

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K. Erdélyi MicroVacuum Ltd. Kerékgyártó u. 10 H-1147 Budapest Hungary

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Zs. Puskás Minvasive Ltd. Goldmann Gy. tér 3 H-1111 Budapest Hungary

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M. Fábián MicroVacuum Ltd. Kerékgyártó u. 10 H-1147 Budapest Hungary

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N. Adányi Central Food Research Institute H-1537 Budapest P.O. Box 393 Hungary

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K. Somogyi MicroVacuum Ltd. Kerékgyártó u. 10 H-1147 Budapest Hungary

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Due to the changes of the refractive indices, the planar optical waveguides are sensitive to the surrounding media, to the adsorbates, etc. on their surface. The sensitivity of such a waveguide layer can be enhanced when its thickness is lowered down to the nanometer range. Such sensors can be successfully operated both in inorganic chemistry and in life sciences as label free biosensors. Principles and some results are demonstrated. Further on, application of transparent conductive oxides for voltammetric measurements in combination with the classical waveguide sensor will be demonstrated. Development and results of a combined system is described and first results with simultaneous measurements are demonstrated. An indium tin oxide nanolayer is deposited and activated on the top of the sensor chip. This electrically conductive oxide layer serves as working electrode in the specially developed electrochemical cuvette. In this work results are presented for simultaneous use of these two methods and for simultaneous measurement of refractive index changes of the waveguiding system and that of electrical current changes. The first basic results are demonstrated using H2O2 and dye solutions, using KCl and TRIS as buffer and transport media.

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Editor-in-Chief: Kukovecz Ákos (SZTE)

Editor-in-Chief: Kónya Zoltán (SZTE)

 

2019  
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Nanopages
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Nanopages
Language English
Size B5
Year of
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2006
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1
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1
Founder Akadémiai Kiadó
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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ISSN 1787-4033 (Print)
ISSN 1788-0718 (Online)

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