Waveguide grating structure and optical measurement arrangement
First Claim
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1. A sensor for studying cell behaviour, the sensor comprising:
- a substrate;
a waveguide grating structure on the substratewith the waveguide grating structure comprising a plurality of waveguide grating structure units or sensor locations;
wherein at least one of said waveguide grating structure units or sensor locations comprises at least one sensing pad with a modified surface of the waveguide grating structure;
the sensor further comprising;
a chemofunctional layer in physical contact with said modified surface, the chemofunctional layer comprising at least one living cell, the chemofunctional layer covering at least partially said at least one waveguide grating structure unit or sensor location;
wherein the at least one living cell is a living human cell or a living animal cell or a living plant cell; and
a liquid sample in physical contact with the chemofunctional layer,the chemofunctional layer being thereby in physical contact with the modified surface and with the sample;
wherein the waveguide grating structure has waveguiding properties and comprises at least one grating, and the waveguide grating structure emits at least one light field when an incident light field at least partially illuminates the waveguide grating structure, thereby being capable of producing a signal indicative of a reaction or a behaviour of the at least one living cell due to a contact with the sample.
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Abstract
The present invention describes (bio)chemo-functional waveguide grating structures consisting of at least one (bio)chemo-functional waveguide grating structure unit or at least one (bio)chemo-functional sensor location with beam guidance permitting light beam separation, as well as detection methods for parallel analysis which are marking-free or based on marking.
33 Citations
44 Claims
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1. A sensor for studying cell behaviour, the sensor comprising:
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a substrate; a waveguide grating structure on the substrate with the waveguide grating structure comprising a plurality of waveguide grating structure units or sensor locations; wherein at least one of said waveguide grating structure units or sensor locations comprises at least one sensing pad with a modified surface of the waveguide grating structure; the sensor further comprising; a chemofunctional layer in physical contact with said modified surface, the chemofunctional layer comprising at least one living cell, the chemofunctional layer covering at least partially said at least one waveguide grating structure unit or sensor location; wherein the at least one living cell is a living human cell or a living animal cell or a living plant cell; and a liquid sample in physical contact with the chemofunctional layer, the chemofunctional layer being thereby in physical contact with the modified surface and with the sample; wherein the waveguide grating structure has waveguiding properties and comprises at least one grating, and the waveguide grating structure emits at least one light field when an incident light field at least partially illuminates the waveguide grating structure, thereby being capable of producing a signal indicative of a reaction or a behaviour of the at least one living cell due to a contact with the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A sensor comprising:
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a substrate, a waveguide grating structure on the substrate, the waveguide grating structure comprising a plurality of waveguide grating structure units or sensor locations; wherein at least one of said waveguide grating structure units or sensor locations comprises at least one sensing pad with a modified surface of the waveguide grating structure; the sensor further comprising a chemofunctional layer in physical contact with said modified surface, the chemofunctional layer comprising at least one living cell, the chemofunctional layer covering at least partially said at least one waveguide grating structure unit or sensor location; a liquid sample in physical contact with the chemofunctional layer, the chemofunctional layer being thereby in physical contact with the modified surface and with the sample; wherein the at least one living cell is a living human cell or a living animal cell or a living plant cell; and wherein the waveguide grating structure has waveguiding properties and comprises at least one grating, wherein fluorescent or luminescent markers are present and fluorescence or luminescence excitation occurs when an incident light field at least partially illuminates the waveguide grating structure. - View Dependent Claims (38)
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39. A sensor for studying the cell behavior, the sensor comprising:
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a substrate; a waveguide grating structure on said substrate; the waveguide grating structure comprising a plurality of waveguide grating structure units or sensor locations, wherein at least one of said waveguide grating structure units or sensor locations comprises at least one signal sensing pad with a modified surface of the waveguide grating structure, the sensor further comprising a chemofunctional layer in physical contact with the modified surface, the chemofunctional layer comprising at least one living cell and covering at least partially said at least one waveguide grating structure unit or sensor location; the signal sensing pad having a signal sensing pad liquid holder or sample accommodating device for bringing the at least one living cell into physical contact with a liquid sample, whereby the chemofunctional layer is in physical contact with the modified surface and with the sample; wherein the at least one living cell is a living human cell or a living animal cell or a living plant cell; wherein said at least one waveguide grating structure unit or sensor location further comprises a reference sensing pad, said reference sensing pad having a reference sensing pad liquid holder or sample accommodating device separate from the signal sensing pad liquid holder or sample accommodating device; and wherein the waveguide grating structure has waveguiding properties and comprises at least one grating, and the waveguide grating structure emits at least one light field when an incident light field at least partially illuminates the waveguide grating structure, thereby being capable of producing a signal indicative of a reaction or a behavior of the at least one living cell due to a contact with the sample. - View Dependent Claims (40, 41, 42, 43, 44)
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Specification