Scaffolded nucleic acid polymer particles and methods of making and using
First Claim
Patent Images
1. A method for forming a particle, the method comprising:
- suspending an emulsion in an initiator-saturated oil-based continuous phase, the emulsion comprising the continuous phase and a disperse phase, the disperse phase including an acrylamide monomer, a bis-acrylamide crosslinker, a surfactant, and an acrydite oligonucleotide in an aqueous solution;
heating the emulsion to polymerize the acrylamide monomer, bis-acrylamide crosslinker and acrydite oligonucleotide to form acrylamide gel particles having a plurality of oligonucleotides attached through a polymer network of the acrylamide gel; and
removing the initiator-saturated oil-based continuous phase; and
resuspending the acrylamide gel particles in a buffered aqueous solution,wherein the acylamide gel particles have a coefficient of variance of volume of not greater than 15%, a total monomer percentage of the acrylamide gel particles is in a range of 3% to 20%, and the acrylamide gel particles are permeable to proteins having a size in the range of 50 kilodaltons to 200 kilodaltons.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention provides particle compositions having applications in nucleic acid analysis. Nucleic acid polymer particles of the invention allow polynucleotides to be attached throughout their volumes for higher loading capacities than those achievable solely with surface attachment. In one aspect, nucleic acid polymer particles of the invention comprise polyacrylamide particles with uniform size distributions having low coefficients of variations, which result in reduced particle-to-particle variation in analytical assays. Such particle compositions are used in various amplification reactions to make amplicon libraries from nucleic acid fragment libraries.
-
Citations
20 Claims
-
1. A method for forming a particle, the method comprising:
-
suspending an emulsion in an initiator-saturated oil-based continuous phase, the emulsion comprising the continuous phase and a disperse phase, the disperse phase including an acrylamide monomer, a bis-acrylamide crosslinker, a surfactant, and an acrydite oligonucleotide in an aqueous solution; heating the emulsion to polymerize the acrylamide monomer, bis-acrylamide crosslinker and acrydite oligonucleotide to form acrylamide gel particles having a plurality of oligonucleotides attached through a polymer network of the acrylamide gel; and removing the initiator-saturated oil-based continuous phase; and resuspending the acrylamide gel particles in a buffered aqueous solution, wherein the acylamide gel particles have a coefficient of variance of volume of not greater than 15%, a total monomer percentage of the acrylamide gel particles is in a range of 3% to 20%, and the acrylamide gel particles are permeable to proteins having a size in the range of 50 kilodaltons to 200 kilodaltons. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification