Multiplexed biological analyzer planar array apparatus and methods
First Claim
1. A method for determining the presence or absence of biological material in a sample comprising:
- multiplexing a plurality of kinds of capture molecules about a detection pathway on a planar array, comprising the steps of;
distributing a first kind of capture molecule along the detection pathway at a first spatial frequency,interspersing a second kind of capture molecule among the first kind of capture molecule along the detection pathway at a second spatial frequency, andinterspersing a third kind of capture molecule among the first and second kinds of capture molecules along the detection pathway at a third spatial frequency, each of the first, second and third spatial frequency being different from the other of the first, second and third spatial frequencies;
contacting a biological sample to the planar array;
scanning the planar array along the detection pathway with a scanning beam traveling over the plurality of kinds of capture molecules to produce a reflected beam containing information from the plurality of kinds of capture molecules; and
detecting the presence or absence of binding of the plurality of kinds of capture molecules and a plurality of target analytes using interferometry and by demultiplexing the reflected beam containing information from the plurality of kinds of capture molecules to determine information of a particular capture molecule.
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Abstract
A planar array having plurality of biological recognition molecules including at least two types of biological recognition molecules distributed about a substrate is disclosed. A first type of biological recognition molecules is distributed according to a first frequency and a second type of biological recognition molecules is distributed according to a second frequency. Another planar array having a plurality of biological recognition molecules including at least two kinds of biological recognition molecules is disclosed. The recognition molecules are distributed about a substrate with first kind of biological recognition molecules distributed at a first height or depth relative to a surface of the substrate and a second kind of biological recognition molecules distributed at a second height or depth relative to the surface. An apparatus including a surface normal interferometry platform including a scanning pathway and a plurality of analyzer molecules adapted to detect the presence or absence of a plurality of target analytes is also disclosed. The plurality of analyzer molecules are distributed about the scanning pathway according to a multiplexing scheme. A method including multiplexing a plurality of kinds of capture molecules about a detection pathway is further disclosed. The method also includes contacting a biological sample to the array, detecting the presence or absence of binding of the plurality of kinds of capture molecules and a plurality of target analytes using interferometry.
232 Citations
19 Claims
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1. A method for determining the presence or absence of biological material in a sample comprising:
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multiplexing a plurality of kinds of capture molecules about a detection pathway on a planar array, comprising the steps of; distributing a first kind of capture molecule along the detection pathway at a first spatial frequency, interspersing a second kind of capture molecule among the first kind of capture molecule along the detection pathway at a second spatial frequency, and interspersing a third kind of capture molecule among the first and second kinds of capture molecules along the detection pathway at a third spatial frequency, each of the first, second and third spatial frequency being different from the other of the first, second and third spatial frequencies; contacting a biological sample to the planar array; scanning the planar array along the detection pathway with a scanning beam traveling over the plurality of kinds of capture molecules to produce a reflected beam containing information from the plurality of kinds of capture molecules; and detecting the presence or absence of binding of the plurality of kinds of capture molecules and a plurality of target analytes using interferometry and by demultiplexing the reflected beam containing information from the plurality of kinds of capture molecules to determine information of a particular capture molecule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 16, 17)
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9. A method for determining the presence or absence of a plurality of target analytes in a biological sample comprising:
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obtaining a substrate having a surface with a detection pathway with a first type of biological recognition molecule and a second type of biological recognition molecule frequency-domain multiplexed, wavelength domain multiplexed or code-division multiplexed thereabout, the first type of biological recognition molecule being distributed at a first spatial frequency and the second type of biological recognition molecule being interspersed with the first type of biological recognition molecule along the detection pathway and being distributed at a second spatial frequency, the second spatial frequency being different from the first spatial frequency; exposing the surface of the substrate to the biological sample; directing a probe laser beam at the surface of the substrate; scanning the probe laser beam across at least the detection pathway; and detecting binding of the first type of biological recognition molecule to at least one of the target analytes using a first wavelength of laser light and binding of the second type of biological recognition molecule to at least another one of the target analytes using a second wavelength of laser light. - View Dependent Claims (10, 11, 12, 13, 14, 15, 18)
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19. A method for determining the presence or absence of biological material in a sample comprising:
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multiplexing a plurality of kinds of capture molecules about a detection pathway on a planar array comprising the steps of; distributing a first kind of capture molecule along the detection pathway at a first spatial frequency, interspersing a second kind of capture molecule among the first kind of capture molecule along the detection pathway at a second spatial frequency, and interspersing a third kind of capture molecule among the first and second kinds of capture molecules along the detection pathway at a third spatial frequency, each of the first, second and third spatial frequency being different from the other of the first, second and third spatial frequencies; contacting a biological sample to the planar array; scanning the planar array along the detection pathway with a scanning beam traveling over the plurality of kinds of capture molecules to produce a reflected beam containing information from the plurality of kinds of capture molecules; and detecting the presence or absence of binding of the plurality of kinds of capture molecules and a plurality of target analytes using interferometry and by demultiplexing the reflected beam containing information from the plurality of kinds of capture molecules to determine information of a particular capture molecule, wherein the demultiplexing the reflected beam comprises using the first, second and third spatial frequencies to detect the presence or absence of binding of the first, second and third kinds of capture molecules, respectively, with the plurality of target analytes.
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Specification