CAN YOUR SAMPLE BE MEASURED?
Traditional SPR technique is centered around gold and dextran coatings and thin layers in liquid phase. The structure of SPR Navi™ together with additional set of lasers enablemeasurements on a number of other systems. In fact, the proprietary snap-on sensor holder enables users to prepare their own sensor slides or to use one of the many ready-made sensor slides.
What samples can you measure with SPR Navi™?
- MATERIALS
- Metals, semiconductors and dielectrics including hydrogels
- Thin and thick layers
- Optically non-absorbing as well as absorbing layers
- SAMPLES
- In gas or in liquid phase
- Also small molecules
- Optically non-absorbing as well as absorbing samples
SPR Navi™ with MP-SPR
- SPR Navi Prism: The optical arrangement enables to cover the whole refractive index range of 1.00-1.40 in one measurement without exchanging any components! This also means that we can cover the SPR angle range of 40 degrees! This is unprecedented range in SPR instruments!
- SPR Navi Elastomer: We are the second SPR manufacturer to use elastomer instead of index-matching oil. This enhances the comfort and speed of the use greatly as the users do not have to cover their slides with oil between measurements!
- SPR Navi Sensor Slides: The sensor slides are very easy-to-exchange due to our drop-in design. Our sensor slides cost only a fraction of prices of slides elsewhere. Moreover, the user can prepare their own slides enhancing the functionality and cost-effectiveness of our instrument even further.
- GLASS: We use BK7 glass, which helps us to keep the sensor slide cost at minimum.
- SPR METAL:SPR phenomena needs a conductive metal in order to be created. Gold is used as a "golden standard", but other metals can be used as well. Noble metals generally have best properties. Some examples include Au, Pt, Ag, Al, Cu.
- OTHER MATERIAL: SPR metal can be covered with other materials. The maximum allowed thickness varies based on the material. Some of the techniques that can be used for coating include vapor deposition, sputtering, sol-gel deposition, Langmuir monolayer depositions, spin coating, dip coating, self assembly, electrochemistry. We can provide more information on request. Some examples of materials used with SPR Navi include Al2O3, SiO2, hydrogels, nylon, cellulose, PS, PP, PET.
- FUNCTIONALIZATION: A number of systems can be used for functionalization of the sensor slides. Some of the examples include Carboxylate, Amine, Biotin, Disulfide, HisTag.
- Sample: Unlike with other systems, SPR Navi works both with samples in liquid and in gas phase. Also optically absorbing samples can be measured with SPR Navi.
- Flow-cell: As a standard, the SPR Navi instruments are equipped with a PDMS flow-cell, but other flow-cells are available as well. Most notably, an electrochemical flow-cell for simultaneous measurements of MP-SPR and EC, a gas flow-cell for gas samples, and a high-chemical-resistance flow-cell made of PEEK.
SPR Navi™ instruments can measure both nanolayers (Å < 100 nm) and thick layers (350 nm - few um, i.e. from half of the wavelength of the laser used) with the standard (Kretschmann) configuration. For infinitely thick samples, the Otto configuration can be used.
Please review/download all Application Notes from HERE.
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