METHOD FOR ISOLATING WEAKLY INTERACTING MOLECULES FROM A FLUIDIC SAMPLE
First Claim
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1. A method for isolating weakly interacting molecules from a fluidic sample, the method comprising:
- a) forming a mixture comprising the fluidic sample and a solid phase substrate, wherein the solid phase substrate comprises at least one immobilized molecule thereon;
b) incubating the mixture under conditions sufficient for the immobilized molecule to interact with a target molecule in the fluidic sample to form a solid phase substrate-immobilized molecule-target molecule complex, wherein the immobilized molecule and the target molecule have an interaction half-life of about 10 minutes or less; and
c) transferring the solid phase substrate-immobilized molecule-target molecule complex into an immiscible phase in about 1 second or less.
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Abstract
Methods of isolating weakly interacting molecules in a fluidic sample using an immiscible phase filtration technique are disclosed. A complex is formed between a solid phase substrate, a molecule immobilized on the solid phase substrate, and at least one target molecule present in the fluidic sample. The complex is transferred into an immiscible phase by applying an external force to the solid phase substrate. The methods eliminate the need for complex and time consuming washing steps.
17 Citations
24 Claims
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1. A method for isolating weakly interacting molecules from a fluidic sample, the method comprising:
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a) forming a mixture comprising the fluidic sample and a solid phase substrate, wherein the solid phase substrate comprises at least one immobilized molecule thereon; b) incubating the mixture under conditions sufficient for the immobilized molecule to interact with a target molecule in the fluidic sample to form a solid phase substrate-immobilized molecule-target molecule complex, wherein the immobilized molecule and the target molecule have an interaction half-life of about 10 minutes or less; and c) transferring the solid phase substrate-immobilized molecule-target molecule complex into an immiscible phase in about 1 second or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for isolating weakly interacting molecules from a fluidic sample, the method comprising:
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a) forming a mixture comprising the fluidic sample and a solid phase substrate, wherein the solid phase substrate comprises at least one immobilized molecule thereon; b) incubating the mixture under conditions sufficient for the immobilized molecule to interact with a target molecule in the fluidic sample to form a solid phase substrate-immobilized molecule-target molecule complex, wherein the immobilized molecule and the target molecule have an interaction half-life of about 5 seconds or less; and c) transferring the solid phase substrate-immobilized molecule-target molecule complex into an immiscible phase. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method for isolating weakly interacting molecules from a fluidic sample, the method comprising:
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a) forming a mixture comprising the fluidic sample and a solid phase substrate, wherein the solid phase substrate comprises at least one immobilized molecule thereon; b) incubating the mixture under conditions sufficient for the immobilized molecule to interact with a target molecule in the fluidic sample to form a solid phase substrate-immobilized molecule-target molecule complex, wherein the target molecule interacts with at least one additional molecule in the fluidic sample, and wherein the target molecule and the at least one additional molecule have an interaction half-life of about 10 minutes or less; and c) transferring the solid phase substrate-immobilized molecule-target molecule complex into an immiscible phase in about 1 second or less.
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24. A method for isolating weakly interacting molecules from a fluidic sample, the method comprising:
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a) forming a mixture comprising the fluidic sample and a solid phase substrate, wherein the solid phase substrate comprises at least one immobilized molecule thereon; b) incubating the mixture under conditions sufficient for the immobilized molecule to interact with a target molecule in the fluidic sample to form a solid phase substrate-immobilized molecule-target molecule complex, wherein the target molecule interacts with at least one additional molecule in the fluidic sample, and wherein the target molecule and the at least one additional molecule have an interaction half-life of about 5 seconds or less; and c) transferring the solid phase substrate-immobilized molecule-target molecule complex into an immiscible phase.
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Specification