Patents by Inventor Xiaochuan Zhou

Xiaochuan Zhou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070281357
    Abstract: Fluidic methods and devices for conducting parallel chemical reactions are disclosed. The methods are based on the use of in situ photogenerated reagents such as photogenerated acids, photogenerated bases, or any other suitable chemical compounds that produce active reagents upon light radiation. The present invention describes devices and methods for performing a large number of parallel chemical reactions without the use of a large number of valves, pumps, and other complicated fluidic components. The present invention provides microfluidic devices that contain a plurality of microscopic vessels for carrying out discrete chemical reactions.
    Type: Application
    Filed: April 9, 2007
    Publication date: December 6, 2007
    Applicant: Invitrogen Corporation
    Inventors: Xiaochuan Zhou, Tiecheng Zhou, David Sun
  • Publication number: 20070224616
    Abstract: A method for forming molecular sequences includes derivatizing an unconfined substrate surface with at least one linker containing a protected reactive group. The substrate is contacted with a solution containing a photogenerated reagent precursor and a buffer and/or a neutralizer. A photogenerated reagent is generated in at least a portion of the solution. The photogenerated reagent is configured to initiate the formation of at least one active region on the substrate surface. A monomer is coupled to the active region.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 27, 2007
    Inventors: Erdogan Gulari, Jean-Marie Rouillard, Xiaolian Gao, Xiaochuan Zhou
  • Publication number: 20070172429
    Abstract: Compositions and methods for controlling and tracking items are provided. More particularly, labeling compositions useful as a coding system to deter diversion of items of medication or other valued items are provided, wherein the labeling compositions comprise at least 25 unique identifiers, wherein the at least 25 unique identifiers are selected from a set of at least 50 unique identifiers. Also provided are methods for using such compositions to provide trackability throughout a chain of custody.
    Type: Application
    Filed: August 14, 2006
    Publication date: July 26, 2007
    Inventors: Xiaolian Gao, David Bear, George Church, Xiaochuan Zhou
  • Patent number: 7211654
    Abstract: A method of modulation of synthesis capacity on and cleavage properties of synthetic oligomers from solid support is described. The method utilizes linker molecules attached to a solid surface and co-coupling agents that have similar reactivities to the coupling compounds with the surface functional groups. The preferred linker molecules provide an increased density of polymers and more resistance to cleavage from the support surface. The method is particularly useful for synthesis of oligonucleotides, oligonucleotides microarrays, peptides, and peptide microarrays. The stable linkers are also coupled to anchor molecules for synthesis of DNA oligonucleotides using on support purification, eliminating time-consuming chromatography and metal cation presence. Oligonucleotides thus obtained can be directly used for mass analysis, DNA amplification and ligation, hybridization, and many other applications.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: May 1, 2007
    Assignee: Regents of the University of Michigan
    Inventors: Xiaolian Gao, Hua Zhang, Peilin Yu, Eric Leproust, Jean Philippe Pellois, Qin Xiang, Xiaochuan Zhou
  • Publication number: 20070059692
    Abstract: The present disclosure provides efficient and reproducible methods for individually synthesizing oligomers in a parallel manner (e.g., oligonucleotides) on a solid support to produce pools of oligomers. Pools of oligonucleotides can be used for a variety of genomic and proteomic applications, including synthesis of genes or long DNA of any arbitrary sequence, PCR template amplification, and to generate primers for multiplexing PCR or transcription. Rapid availability of these oligonucleotide products will greatly accelerate the processes of de novo protein design, vaccine development, production of short RNA fragments, such as siRNA, oligonucleotide-based drug screening, and SNP sample preparation.
    Type: Application
    Filed: October 28, 2003
    Publication date: March 15, 2007
    Inventors: Xiaolian Gao, Xiaochuan Zhou, Shi-Ying Cai, Qimin You, Xiaolin Zhang
  • Publication number: 20070031942
    Abstract: The present invention relates generally to the fields of genomics, synthetic biology and genetic engineering. More particularly, the present invention concerns the methods that enable parallel multiplex ligation and amplification on surface for making assemblies of nucleic acids of various biological applications and for analysis of biological samples such as DNA, RNA, and proteins.
    Type: Application
    Filed: March 1, 2006
    Publication date: February 8, 2007
    Inventors: Xialoian Gao, Xiaochuan Zhou, Xiaolin Zhang, Nuing Sheng, Qi Zhu
  • Publication number: 20060188413
    Abstract: Fluidic methods and devices for conducting parallel chemical reactions are disclosed. The methods are based on the use of in situ photogenerated reagents such as photogenerated acids, photogenerated bases, or any other suitable chemical compounds that produce active reagents upon light radiation. The present invention describes devices and methods for performing a large number of parallel chemical reactions without the use of a large number of valves, pumps, and other complicated fluidic components. The present invention provides microfluidic devices that contain a plurality of microscopic vessels for carrying out discrete chemical reactions.
    Type: Application
    Filed: April 7, 2006
    Publication date: August 24, 2006
    Inventors: Xiaochuan Zhou, Tiecheng Zhou, David Sun
  • Publication number: 20040023368
    Abstract: This invention provides method and apparatus for performing chemical and biochemical reactions in solution using in situ generated photo-products as reagent or co-reagent. Specifically, the method and apparatus of the present invention have applications in parallel synthesis of molecular sequence arrays on solid surfaces.
    Type: Application
    Filed: April 21, 2003
    Publication date: February 5, 2004
    Applicant: The Regents Of The University Of Michigan
    Inventors: Xiaolian Gao, Xiaochuan Zhou, Erdogan Gulari
  • Patent number: 6650822
    Abstract: An optical device consists of one or more optical waveguides and mechanical light switches 30. When a light switch 30 is turned on, it extracts light beam 62a from a waveguide core 20 and redirect the light beam 62b into free space, it redirects an incoming light beam 80 from free space and injects the light beam 80a into the waveguide core 20, or it performs both functions at the same time, depending on specific applications. On and off states of a light switch 30 are achieved by pulling the light switch 30 into a close vicinity of the waveguide core 20 and by pushing the light switch 30 away from the waveguide core 20, respectively. An interactive fiat-panel display can be built based on this invention. A plurality of parallel channel waveguides forms a display panel. An array of light beams 62a, injected from an array light source 60, propagates along waveguide cores 20 until reaches a location where a light switch 30 is turned on.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: November 18, 2003
    Assignee: Xeotion Corp.
    Inventor: Xiaochuan Zhou
  • Publication number: 20030186427
    Abstract: This invention provides method and apparatus for performing chemical and biochemical reactions in solution using in situ generated photo-products as reagent or co-reagent. Specifically, the method and apparatus of the present invention have applications in parallel synthesis of molecular sequence arrays on solid surfaces.
    Type: Application
    Filed: December 4, 2002
    Publication date: October 2, 2003
    Applicant: The Regents Of The University Of Michigan
    Inventors: Xiaolian Gao, Xiaochuan Zhou, Erdogan Gulari
  • Publication number: 20030143131
    Abstract: This invention provides method and apparatus for performing chemical and biochemical reactions in solution using in situ generated photo-products as reagent or co-reagent. Specifically, the method and apparatus of the present invention have applications in parallel synthesis of molecular sequence arrays on solid surfaces.
    Type: Application
    Filed: May 29, 2002
    Publication date: July 31, 2003
    Applicant: The Regents Of The University Of Michigan
    Inventors: Xiaolian Gao, Xiaochuan Zhou, Erdogan Gulari
  • Publication number: 20030138363
    Abstract: This invention provides method and apparatus for performing chemical and biochemical reactions in solution using in situ generated photo-products as reagent or co-reagent. Specifically, the method and apparatus of the present invention have applications in parallel synthesis of molecular sequence arrays on solid surfaces.
    Type: Application
    Filed: September 11, 2002
    Publication date: July 24, 2003
    Applicant: The Regents Of The University of Michigan
    Inventors: Xiaolian Gao, Xiaochuan Zhou, Erdogan Gulari
  • Publication number: 20030118486
    Abstract: Fluidic methods and devices for conducting parallel chemical reactions are disclosed. The methods are based on the use of in situ photogenerated reagents such as photogenerated acids, photogenerated bases, or any other suitable chemical compounds that produce active reagents upon light radiation. The present invention describes devices and methods for performing a large number of parallel chemical reactions without the use of a large number of valves, pumps, and other complicated fluidic components. The present invention provides microfluidic devices that contain a plurality of microscopic vessels for carrying out discrete chemical reactions.
    Type: Application
    Filed: September 16, 2002
    Publication date: June 26, 2003
    Applicant: Xeotron Corporation
    Inventors: Xiaochuan Zhou, Erdogan Gulari
  • Publication number: 20030120035
    Abstract: A method of modulation of synthesis capacity on and cleavage properties of synthetic oligomers from solid support is described. The method utilizes linker molecules attached to a solid surface and co-coupling agents that have similar reactivities to the coupling compounds with the surface functional groups. The preferred linker molecules provide an increased density of polymers and more resistance to cleavage from the support surface. The method is particularly useful for synthesis of oligonucleotides, oligonucleotides microarrays, peptides, and peptide microarrays. The stable linkers are also coupled to anchor molecules for synthesis of DNA oligonucleotides using on support purification, eliminating time-consuming chromatography and metal cation presence. Oligonucleotides thus obtained can be directly used for mass analysis, DNA amplification and ligation, hybridization, and many other applications.
    Type: Application
    Filed: March 13, 2002
    Publication date: June 26, 2003
    Applicant: The Regents Of The University Of Michigan
    Inventors: Xiaolian Gao, Hua Zhang, Peilin Yu, Eric Leproust, Jean Philippe Pellois, Qin Xiang, Xiaochuan Zhou
  • Publication number: 20030091476
    Abstract: Fluidic methods and devices for conducting parallel chemical reactions are disclosed. The methods are based on the use of in situ photogenerated reagents such as photogenerated acids, photogenerated bases, or any other suitable chemical compounds that produce active reagents upon light radiation. The present invention describes devices and methods for performing a large number of parallel chemical reactions without the use of a large number of valves, pumps, and other complicated fluidic components. The present invention provides microfluidic devices that contain a plurality of microscopic vessels for carrying out discrete chemical reactions.
    Type: Application
    Filed: November 4, 2002
    Publication date: May 15, 2003
    Inventors: Xiaochuan Zhou, Tiecheng Zhou, David Sun
  • Patent number: 6426184
    Abstract: This invention provides method and apparatus for performing chemical and biochemical reactions in solution using in situ generated photo-products as reagent or co-reagent. Specifically, the method and apparatus of the present invention have applications in parallel synthesis of molecular sequence arrays on solid surfaces.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: July 30, 2002
    Assignee: The Regents of the University of Michigan
    Inventors: Xiaolian Gao, Xiaochuan Zhou, Erdogan Gulari
  • Publication number: 20020081582
    Abstract: This invention provides method and apparatus for performing chemical and biochemical reactions in solution using in situ generated photo-products as reagent or co-reagent. Specifically, the method and apparatus of the present invention have applications in parallel synthesis of molecular sequence arrays on solid surfaces.
    Type: Application
    Filed: February 10, 1999
    Publication date: June 27, 2002
    Inventors: XIAOLIAN GAO, XIAOCHUAN ZHOU, ERDOGAN GULARI
  • Publication number: 20020012616
    Abstract: Fluidic methods and devices for conducting parallel chemical reactions are disclosed. The methods are based on the use of in situ photogenerated reagents such as photogenerated acids, photogenerated bases, or any other suitable chemical compounds that produce active reagents upon light radiation. The present invention describes devices and methods for performing a large number of parallel chemical reactions without the use of a large number of valves, pumps, and other complicated fluidic components. The present invention provides microfluidic devices that contain a plurality of microscopic vessels for carrying out discrete chemical reactions.
    Type: Application
    Filed: July 3, 2001
    Publication date: January 31, 2002
    Inventors: Xiaochuan Zhou, Tiecheng Zhou, David Sun
  • Patent number: 5953469
    Abstract: An optical device consists of one or more optical waveguides and mechanical light switches 30. When a light switch 30 is turned on, it extracts light beam 62a from a waveguide core 20 and redirect the light beam 62b into free space, it redirects an incoming light beam 80 from free space and injects the light beam 80a into the waveguide core 20, or it performs both functions at the same time, depending on specific applications. On and off states of a light switch 30 are achieved by pulling the light switch 30 into a close vicinity of the waveguide core 20 and by pushing the light switch 30 away from the waveguide core 20, respectively. An interactive flat-panel display can be built based on this invention. A plurality of parallel channel waveguides forms a display panel. An array of light beams 62a, injected from an array light source 60, propagates along waveguide cores 20 until reaches a location where a light switch 30 is turned on.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: September 14, 1999
    Assignee: Xeotron Corporation
    Inventor: Xiaochuan Zhou