Functionalized silicon compounds and methods for their synthesis and use

• US 7,125,947 B2
• Filed: 05/28/2004
• Issued: 10/24/2006
• Est. Priority Date: 10/13/1998
• Status: Expired due to Fees

• Current Assignee: Affymetrix, Inc. (Thermo Fisher Scientific Incorporated)
• Original Assignee: Affymetrix, Inc. (Thermo Fisher Scientific Incorporated)
• Inventors: McGall, Glenn, Forman, Jonathan Eric
• Primary Examiner(s): Riley, Jezia
• Application Number:
  US10/857,329
• Publication Number:
  US 20050123775A1
• Time in Patent Office: 879 Days
• Field of Search: 528/10, 528/25, 528/28, 528/33
• US Class Current: 528/10
• CPC Class Codes: C03C 17/30 with silicon-containing compounds
• CPC Class Codes: C03C 2218/113 by sol-gel processes
• CPC Class Codes: C07F 7/1804 Compounds having Si-O-C linkages Si-O-acyl linkages C07F7/1896
• CPC Class Codes: C08G 73/0206 Polyalkylene(poly)amines
• CPC Class Codes: C09D 179/02 Polyamines
• CPC Class Codes: C09D 183/08 containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
• CPC Class Codes: C09D 183/14 in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms C09D183/10 takes precedence
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

Provided are functionalized silicon compounds and methods for their synthesis and use. The functionalized silicon compounds include at least one activated silicon group and at least one derivatizable functional group. Exemplary derivatizable functional groups include hydroxyl, amino, carboxyl and thiol, as well as modified forms thereof, such as activated or protected forms. The functionalized silicon compounds may be covalently attached to surfaces to form functionalized surfaces which may be used in a wide range of different applications. In one embodiment, the silicon compounds are attached to the surface of a substrate comprising silica, such as a glass substrate, to provide a functionalized surface on the substrate, to which molecules, including polypeptides and nucleic acids, may be attached. In one embodiment, after covalent attachment of a functionalized silicon compound to the surface of a solid silica substrate to form a functionalized coating on the substrate, an array of nucleic acids may be covalently attached to the substrate. Thus, the method permits the formation of high density arrays of nucleic acids immobilized on a substrate, which may be used, for example, in conducting high volume nucleic acid hybridization assays.

Claims

1. A functionalized silicon compound of Formula 21:

2. The silicon compound of claim 1, wherein the derivatizable functional groups are independently selected from the group consisting of hydroxyl, amino, carboxyl, thio, halo amido and sulfonate.

3. A silicon compound of claim 1, selected from the group consisting of:

4. The compound of claim 1, wherein R₃ is an alkoxy group.

5. The compound of claim 4, wherein R₁, R₂, and R₃, are independently, —

OCH₃, or —

OCH₂CH₃.

6. The compound of claim 5, wherein R₁, R₂ and R₃ are each —

OCH₃.

7. The compound of claim 1, wherein R₁, and R₂, are independently, —

OCH₃ or —

OCH₂CH₃, and R₃ is —

CH₃, or a substituted alkyl group.

8. The compound of claim 2, wherein L₁, L₂, L₃ and L₄ are independently, —

C_1-25 alkyl;

or a heteroalkyl; and

the derivatizable groups are hydroxyl or amino.

9. The compound of claim 8, wherein L₁, L₂, L₃ and L₄ are independently, —

(CH₂)_n—

, wherein n is an integer from 2 to 10.

10. The compound of claim 9, wherein L₁, L₂, L₃ and L₄ are independently, —

(CH₂)_n—

, wherein n is 2, 3, or 4.

11. The compound of claim 1, wherein A₁, A₂, A₃, and A₄ independently comprise, a linear or branched alkyl or linear or branched heteroalkyl, having 1, 2, or 3 derivatizable groups.

12. The compound of claim 2, wherein the derivatizable groups are amino, or hydroxyl.

13. The compound of claim 12, wherein A₁, A₂, A₃, and A₄ independently —

CH₂CH₂OH, or an amide.

14. The compound of claim 1, wherein B₁ is C_1–

12 alkyl, branched C<sub>1–

12</sub> alkyl, a heteroatom, C1–

12 heteroalkyl, or branched C1–

12 heteroalkyl.