Patents by Inventor Lijun Dai

Lijun Dai 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: 20210009809
    Abstract: Provided are dyes and compositions which are useful in a number of applications, such as the detection and monitoring protein aggregation, kinetic studies of protein aggregation, neurofibrillary plaques analysis, evaluation of protein formulation stability, and analysis of molecular chaperone activity.
    Type: Application
    Filed: August 6, 2020
    Publication date: January 14, 2021
    Applicant: Enzo Life Sciences, Inc.
    Inventors: Wayne Forrest Patton, Sergiy M. Yarmoluk, Praveen Pande, Vladyslava Kovalska, Lijun Dai, Kateryna Volkova, Jack Coleman, Mykhaylo Losytskyy, Anthony Ludlam, Anatoliy Balanda, Dee Shen
  • Publication number: 20180273759
    Abstract: Provided are dyes and compositions which are useful in a number of applications, such as the detection and monitoring protein aggregation, kinetic studies of protein aggregation, neurofibrillary plaques analysis, evaluation of protein formulation stability, and analysis of molecular chaperone activity.
    Type: Application
    Filed: April 26, 2018
    Publication date: September 27, 2018
    Applicant: Enzo Life Sciences, Inc.
    Inventors: Wayne Forrest Patton, Sergiy M. Yarmoluk, Praveen Pande, Vladyslava Kovalska, Lijun Dai, Kateryna Volkova, Jack Coleman, Mykhaylo Losytskyy, Anthony Ludlam, Anatoliy Balanda, Dee Shen
  • Patent number: 9932479
    Abstract: Provided are dyes and compositions which are useful in a number of applications, such as the detection and monitoring protein aggregation, kinetic studies of protein aggregation, neurofibrillary plaques analysis, evaluation of protein formulation stability, protein thermal stability shift assay and analysis of molecular chaperone activity. These dyes and compositions are also useful as probes in nucleic acid and protein detection.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: April 3, 2018
    Assignee: Enzo Biochem, Inc.
    Inventors: Wayne Forrest Patton, Sergiy M. Yarmoluk, Praveen Pande, Vladyslava Kovalska, Lijun Dai, Kateryna Volkova, Jack Coleman, Mykhaylo Losytskyy, Anthony Ludlum, Anatoliy Balanda
  • Publication number: 20160280921
    Abstract: Provided are dyes and compositions which are useful in a number of applications, such as the detection and monitoring protein aggregation, kinetic studies of protein aggregation, neurofibrillary plaques analysis, evaluation of protein formulation stability, and analysis of molecular chaperone activity.
    Type: Application
    Filed: May 17, 2016
    Publication date: September 29, 2016
    Applicant: Enzo Life Sciences, Inc.
    Inventors: Wayne Forrest Patton, Sergiy M. Yarmoluk, Praveen Pande, Vladyslava Kovalska, Lijun Dai, Kateryna Volkova, Jack Coleman, Mykhaylo Losytskyy, Anthony Ludlum, Anatoliy Balanda, Dee Shen
  • Publication number: 20150376411
    Abstract: Provided are dyes and compositions which are useful in a number of applications, such as the detection and monitoring protein aggregation, kinetic studies of protein aggregation, neurofibrillary plaques analysis, evaluation of protein formulation stability, protein thermal stability shift assay and analysis of molecular chaperone activity. These dyes and compositions are also useful as probes in nucleic acid and protein detection.
    Type: Application
    Filed: July 29, 2015
    Publication date: December 31, 2015
    Applicant: Enzo Biochem, Inc.
    Inventors: Wayne Forrest Patton, Sergiy M. Yarmoluk, Praveen Pande, Vladyslava Kovalska, Lijun Dai, Kateryna Volkova, Jack Coleman, Mykhaylo Losytskyy, Anthony Ludlum, Anatoliy Balanda
  • Patent number: 9200033
    Abstract: The present invention belongs to the biomedicine field and specifically concerns an enzyme-degradable polymer and the application thereof. To solve the problem of low sensitivity of the existing assay reagents, the present invention provides an enzyme-degradable polymer and the related application of the polymer. The present invention also provides hydrogels, nano-particles, fluorescent dye-labeled enzyme substrates and kits (packages) for detection or activity-analysis of biological enzymes based on the enzyme-degradable polymer. The formula of the enzyme-degradable polymer is P1-(aa)N-(AA)n-X X=[formula 1] wherein, (aa)N is a non-enzyme substrate domain, the N aa may be different (no correlation), and N is a non-negative integer; (AA)n is an enzyme substrate domain, the n AA may be different, and n is a non-negative integer; P1 is a protecting group of ?-amino or functional group; P2 is a protecting group of ?-amino; P3 is —NH2, a small molecule compound or a fragment of a polymer.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: December 1, 2015
    Assignee: KAREBAY BIOCHEM INC.
    Inventor: Lijun Dai
  • Patent number: 9133343
    Abstract: Provided are dyes and compositions which are useful in a number of applications, such as the detection and monitoring protein aggregation, kinetic studies of protein aggregation, neurofibrillary plaques analysis, evaluation of protein formulation stability, protein thermal stability shift assay and analysis of molecular chaperone activity. These dyes and compositions are also useful as probes in nucleic acid and protein detection.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: September 15, 2015
    Assignee: Enzo Biochem, Inc.
    Inventors: Wayne Forrest Patton, Sergiy M. Yarmoluk, Praveen Pande, Vladyslava Kovalska, Lijun Dai, Kateryna Volkova, Jack Coleman, Mykhaylo Losytskyy, Anthony Ludlam, Anatoliy Balanda
  • Publication number: 20150031046
    Abstract: A bioanalytical reagent used in a heterogeneous phase and a usage method thereof are provided to increase the signal intensity from the bioanalytical reagent. The bioanalytical reagent includes a target detector and a signal generator. The signal generator is represented by the following formula: (p1) y-(a trigger)z-(LS) N-a degradable polymer coupled with a contrast agent in latent state via covalent bonds-p2, wherein p1 is a protecting group for the end group of the trigger, LS is a self-immolative linker or spacer, p2 is a protecting group for the end group of the degradable polymer, y is 0 or 1, and Z, N are non-negative integer. The signal generator is in a latent state during wash and separation procedures, until an inducing matter or a condition, which excites the contrast agent from a latent state to an active state, is added or applied into the analysis system after the separation procedure so as to degrade directly the polymer or to stimulate the triggers in sequence before degrading the polymer.
    Type: Application
    Filed: May 24, 2011
    Publication date: January 29, 2015
    Inventor: Lijun Dai
  • Publication number: 20140243429
    Abstract: The present invention belongs to the biomedicine field and specifically concerns an enzyme-degradable polymer and the application thereof. To solve the problem of low sensitivity of the existing assay reagents, the present invention provides an enzyme-degradable polymer and the related application of the polymer. The present invention also provides hydrogels, nano-particles, fluorescent dye-labeled enzyme substrates and kits (packages) for detection or activity-analysis of biological enzymes based on the enzyme-degradable polymer. The formula of the enzyme-degradable polymer is P1-(aa)N-(AA)n-X X=[formula 1] wherein, (aa)N is a non-enzyme substrate domain, the N aa may be different (no correlation), and N is a non-negative integer; (AA)n is an enzyme substrate domain, the n AA may be different, and n is a non-negative integer; P1 is a protecting group of ?-amino or functional group; P2 is a protecting group of ?-amino; P3 is —NH2, a small molecule compound or a fragment of a polymer.
    Type: Application
    Filed: May 24, 2011
    Publication date: August 28, 2014
    Inventor: Lijun Dai
  • Publication number: 20130137112
    Abstract: Provided are dyes and compositions which are useful in a number of applications, such as the detection and monitoring protein aggregation, kinetic studies of protein aggregation, neurofibrillary plaques analysis, evaluation of protein formulation stability, and analysis of molecular chaperone activity.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 30, 2013
    Inventors: Wayne Forrest Patton, Sergiy M. Yarmoluk, Praveen Pande, Vladyslava Kovalska, Lijun Dai, Kateryna Volkova, Jack Coleman, Mykhaylo Losytskyy, Anthony Ludlam, Anatoliy Balanda, Dee Shen
  • Publication number: 20110130305
    Abstract: Provided are dyes and compositions which are useful in a number of applications, such as the detection and monitoring protein aggregation, kinetic studies of protein aggregation, neurofibrillary plaques analysis, evaluation of protein formulation stability, protein thermal stability shift assay and analysis of molecular chaperone activity. These dyes and compositions are also useful as probes in nucleic acid and protein detection.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Inventors: Wayne Forrest Patton, Sergiy M. Yarmoluk, Praveen Pande, Vladyslava Kovalska, Lijun Dai, Kateryna Volkova, Jack Coleman, Mykhaylo Losytskyy, Anthony Ludlum, Anatoliy Balanda
  • Publication number: 20090169482
    Abstract: A nanoparticulate imaging probe with an oxide core, a biocompatible polymeric shell covalently attached to the oxide core, a dye, and a cleavable spacer that covalently binds the dye to the probe. When the spacer is cleaved, the dye is liberated from the probe. The emissions of the dye are quenched when the dye is bound to the probe and not quenched when the dye is liberated from the probe. The spacer can be, for example, a peptide. The oxide core can be, for example, a silicon oxide core.
    Type: Application
    Filed: October 31, 2007
    Publication date: July 2, 2009
    Inventors: Shiying Zheng, Lijun Dai, Ruizheng Wang, Tiecheng A. Qiao, Wenyi Che, William J. Harrison
  • Publication number: 20090098057
    Abstract: A nanoparticulate imaging probe with an oxide core, a biocompatible polymeric shell covalently attached to the oxide core, a dye, and a cleavable spacer that covalently binds the dye to the probe. When the spacer is cleaved, the dye is liberated from the probe. The emissions of the dye are quenched when the dye is bound to the probe and not quenched when the dye is liberated from the probe. The spacer can be, for example, a peptide. The oxide core can be, for example, a silicon oxide core.
    Type: Application
    Filed: October 16, 2007
    Publication date: April 16, 2009
    Inventors: Shiying Zheng, Lijun Dai, Ruizheng Wang, Tiecheng A. Qiao, Wenyi Che, William J. Harrison
  • Publication number: 20070237821
    Abstract: The present invention relates to a nanogel comprising a polymer network of repetitive, crosslinked, ethylenically unsaturated monomers of Formula I: (X)m-(Y)n-(Z)o??Formula I wherein X is a water-soluble monomer containing ionic or hydrogen bonding moieties; Y is a water-soluble macromonomer containing repetitive hydrophilic units bound to a polymerizeable ethylenically unsaturated group; Z is a multifunctional crosslinking monomer; m ranges from 50-90 mol %; n ranges from 2-30 mol %; and o range from 1-15 mol % and a method for preparing a nanogel comprising preparing a header composition of a mixture of monomers X, Y, and Z, and a first portion of initiators in water; preparing a reactor composition of a second portion initiators, surfactant, and water; bringing the reactor composition to the polymerization temperature; holding the reactor composition at the polymerization temperature, and adding the header composition to the reactor composition to form a nanogel of Formula I.
    Type: Application
    Filed: April 10, 2006
    Publication date: October 11, 2007
    Inventors: Jeffrey Leon, James Bennett, Tiecheng Qiao, John Harder, Thomas Mourey, Gary Slater, Lijun Dai