Abstract:
Methods and devices are provided for manipulating droplets on a support using surface tension properties, moving the droplets along a predetermined path and merging two droplets together enabling a number of chemical reactions. Disclosed are methods for controlling the droplets volumes. Disclosed are methods and devices for synthesizing at least one oligonucleotide having a predefined sequence. Disclosed are methods and devices for synthesizing and/or assembling at least one polynucleotide product having a predefined sequence from a plurality of different oligonucleotides having a predefined sequence. In exemplary embodiments, the methods involve synthesis and/or amplification of different oligonucleotides immobilized on a solid support, release of synthesized/amplified oligonucleotides in solution to form droplets, recognition and removal of error-containing oligonucleotides, moving or combining two droplets to allow hybridization and/or ligation between two different oligonucleotides, and further chain extension reaction following hybridization and/or ligation to hierarchically generate desired length of polynucleotide products.
Abstract:
Methods and devices are provided for manipulating droplets on a support using surface tension properties, moving the droplets along a predetermined path and merging two droplets together enabling a number of chemical reactions. Disclosed are methods for controlling the droplets volumes. Disclosed are methods and devices for synthesizing at least one oligonucleotide having a predefined sequence. Disclosed are methods and devices for synthesizing and/or assembling at least one polynucleotide product having a predefined sequence from a plurality of different oligonucleotides having a predefined sequence. In exemplary embodiments, the methods involve synthesis and/or amplification of different oligonucleotides immobilized on a solid support, release of synthesized/amplified oligonucleotides in solution to form droplets, recognition and removal of error-containing oligonucleotides, moving or combining two droplets to allow hybridization and/or ligation between two different oligonucleotides, and further chain extension reaction following hybridization and/or ligation to hierarchically generate desired length of polynucleotide products.
Abstract:
Methods and devices are provided for preparing a protein array having a plurality of proteins. In one embodiment, the method includes providing a plurality of nucleic acids each having a predefined sequence and expressing in vitro a plurality of proteins from the plurality of nucleic acids. In another embodiment, protein arrays having a solid surface and a microvolume are also provided. The solid surface can have a plurality of anchor oligonucleotides capable of hybridizing with a plurality of nucleic acids. The microvolume can cover each of the plurality of anchor oligonucleotides and can be configured to produce a polypeptide from each of the plurality of nucleic acids.
Abstract:
Disclosed are methods for synthesizing and/or assembling at least one polynucleotide product having a predefined sequence from a plurality of different oligonucleotides. In exemplary embodiments, the methods involve synthesis and/or amplification of different oligonucleotides immobilized on a solid support, release of synthesized/amplified oligonucleotides in solution to form droplets, recognition and removal of error-containing oligonucleotides, moving or combining two droplets to allow hybridization and/or ligation between two different oligonucleotides, and further chain extension reaction following hybridization and/or ligation to hierarchically generate desired length of polynucleotide products.
Abstract:
Methods and apparatus relate to the synthesis of high fidelity polynucleotides and to the reduction of sequence errors generated during synthesis of nucleic acids on a solid support. Specifically, design of support-bound template oligonucleotides is disclosed. Assembly methods include cycles of annealing, stringent wash and extension of polynucleotides comprising a sequence region complementary to immobilized template oligonucleotides. The error free synthetic nucleic acids generated therefrom can be used for a variety of applications, including synthesis of biofuels and value-added pharmaceutical products.
Abstract:
Methods and apparatus relate to the synthesis of high fidelity polynucleotides and to the reduction of sequence errors generated during synthesis of nucleic acids on a solid support. Specifically, design of support-bound template oligonucleotides is disclosed. Assembly methods include cycles of annealing, stringent wash and extension of polynucleotides comprising a sequence region complementary to immobilized template oligonucleotides. The error free synthetic nucleic acids generated therefrom can be used for a variety of applications, including synthesis of biofuels and value-added pharmaceutical products.
Abstract:
Disclosed are methods for synthesizing and/or assembling at least one polynucleotide product having a predefined sequence from a plurality of different oligonucleotides. In exemplary embodiments, the methods involve synthesis and/or amplification of different oligonucleotides immobilized on a solid support, release of synthesized/amplified oligonucleotides in solution to form droplets, recognition and removal of error-containing oligonucleotides, moving or combining two droplets to allow hybridization and/or ligation between two different oligonucleotides, and further chain extension reaction following hybridization and/or ligation to hierarchically generate desired length of polynucleotide products.
Abstract:
Methods and devices are provided for preparing a protein array having a plurality of proteins. In one embodiment, the method includes providing a plurality of nucleic acids each having a predefined sequence and expressing in vitro a plurality of proteins from the plurality of nucleic acids. In another embodiment, protein arrays having a solid surface and a microvolume are also provided. The solid surface can have a plurality of anchor oligonucleotides capable of hybridizing with a plurality of nucleic acids. The microvolume can cover each of the plurality of anchor oligonucleotides and can be configured to produce a polypeptide from each of the plurality of nucleic acids.
Abstract:
Disclosed are compositions, methods and devices for the in situ synthesis of nucleic acids. In an exemplary embodiment, a support-bound oligonucleotide is elongated by addition of one or more nucleotides by hybridization of a partially double-stranded oligonucleotide, ligation and removal of unwanted nucleotides.
Abstract:
Methods and apparatus relate to reduction of sequence errors generated during synthesis of nucleic acids on a microarray chip. The error reduction can include synthesis of complementary stands (to template strands), using a short universal primer complementary to the template strands and polymerase. Heteroduplex can be formed be melting and re-annealing complementary stands and template strands. The heteroduplexes containing a mismatch can be recognized and cleaved by a mismatch endonuclease. The mismatch-containing cleaved heteroduplexes can be removed from the microarray chip using a global buffer exchange. The error free synthetic nucleic acids generated therefrom can be used for a variety of applications, including synthesis of biofuels and value-added pharmaceutical products.