Deposition of metal oxides onto surfaces as an immobilization vehicle for carboxylated or phophated particles or polymers
First Claim
1. A method of immobilizing a particle onto a surface comprising:
- depositing a metal oxide layer onto the surface; and
contacting a functionalized particle onto the metal oxide surface, the particle selected from the group consisting of a bead, a refractory bead, and a ligation bead;
wherein the particle is immobilized on the surface.
1 Assignment
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Accused Products
Abstract
Intermediates and methods for forming activated metal complexes bound to surfaces on oxide layers, immobilizing beads to the modified surface and articles produced thereby are described. Hydroxyl groups on the oxide surfaces are reacted with a metal reagent complex of the formula Y(L-Pol)m, where Y is a transition metal, magnesium or aluminum, L is oxygen, sulfur, selenium or an amine, and “Pol” represents a passivating agent such as a methoxyethanol, a polyethylene glycol, a hydrocarbon, or a fluorocarbon. The resulting modified surface can be further reacted with a passivating agent having a phosphate functional group or a plurality of functional groups that are reactive with or that form complexes with Y. The metal oxide surfaces exhibit minimal binding to bio-molecules, exhibit uniform deposition and immobilization of beads at high density, can be subsequently modified to create surfaces having a variety of properties, and can be used for nucleic acid sequencing and other analyses and in single-molecule detection schemes.
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Citations
19 Claims
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1. A method of immobilizing a particle onto a surface comprising:
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depositing a metal oxide layer onto the surface; and contacting a functionalized particle onto the metal oxide surface, the particle selected from the group consisting of a bead, a refractory bead, and a ligation bead; wherein the particle is immobilized on the surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19)
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8. The method of claim , wherein the polymer is stable in a variety of solvent.
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17. A method of immobilizing a particle onto a surface comprising:
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depositing a metal oxide layer onto the surface; and contacting a functionalized particle onto the metal oxide surface, the particle being at least 0.5 to 10 microns in size; wherein the particle is immobilized on the surface.
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Specification