Next Article in Journal
Electroanalysis of NADH Using Conducting and Redox Active Polymer/Carbon Nanotubes Modified Electrodes-A Review
Next Article in Special Issue
High Sensitive Temperature Sensor Using a Liquid-core Optical Fiber with Small Refractive Index Difference Between Core and Cladding Materials
Previous Article in Journal
Micro Fluidic Channel Machining on Fused Silica Glass Using Powder Blasting
Previous Article in Special Issue
Cytotoxicity Investigation on Cultured Human Blood Cells Treated with Single-Wall Carbon Nanotubes
Open AccessReview

Evanescent field Sensors Based on Tantalum Pentoxide Waveguides – A Review

1
Fraunhofer Institute for Physical Measurement Techniques, Heidenhofstr. 8, 79110 Freiburg, Germany
2
Institute for Bioprocessing and Analytical Measurement Techniques, Rosenhof, 37308 Heilbad Heiligenstadt, Germany
*
Author to whom correspondence should be addressed.
Sensors 2008, 8(2), 711-738; https://doi.org/10.3390/s8020711
Received: 5 November 2007 / Accepted: 29 January 2008 / Published: 6 January 2008
(This article belongs to the Special Issue Optical Biosensors)
Evanescent field sensors based on waveguide surfaces play an important rolewhere high sensitivity is required. Particularly tantalum pentoxide (Ta2O5) is a suitablematerial for thin-film waveguides due to its high refractive index and low attenuation.Many label-free biosensor systems such as grating couplers and interferometric sensors aswell as fluorescence-based systems benefit from this waveguide material leading toextremely high sensitivity. Some biosensor systems based on Ta2O5 waveguides alreadytook the step into commercialization. This report reviews the various detection systems interms of limit of detection, the applications, and the suitable surface chemistry. View Full-Text
Keywords: biosensors; evanescent field; label-free detection; Ta2O5. biosensors; evanescent field; label-free detection; Ta2O5.
Show Figures

MDPI and ACS Style

Schmitt, K.; Oehse, K.; Sulz, G.; Hoffmann, C. Evanescent field Sensors Based on Tantalum Pentoxide Waveguides – A Review. Sensors 2008, 8, 711-738. https://doi.org/10.3390/s8020711

AMA Style

Schmitt K, Oehse K, Sulz G, Hoffmann C. Evanescent field Sensors Based on Tantalum Pentoxide Waveguides – A Review. Sensors. 2008; 8(2):711-738. https://doi.org/10.3390/s8020711

Chicago/Turabian Style

Schmitt, Katrin; Oehse, Kerstin; Sulz, Gerd; Hoffmann, Christian. 2008. "Evanescent field Sensors Based on Tantalum Pentoxide Waveguides – A Review" Sensors 8, no. 2: 711-738. https://doi.org/10.3390/s8020711

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Search more from Scilit
 
Search
Back to TopTop